/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/array-tiling/nr2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:07:21,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:07:21,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:07:21,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:07:21,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:07:21,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:07:21,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:07:21,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:07:21,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:07:21,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:07:21,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:07:21,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:07:21,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:07:21,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:07:21,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:07:21,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:07:21,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:07:21,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:07:21,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:07:21,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:07:21,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:07:21,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:07:21,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:07:21,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:07:21,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:07:21,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:07:21,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:07:21,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:07:21,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:07:21,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:07:21,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:07:21,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:07:21,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:07:21,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:07:21,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:07:21,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:07:21,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:07:21,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:07:21,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:07:21,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:07:21,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:07:21,650 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 [2020-10-29 04:07:21,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:07:21,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:07:21,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:07:21,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:07:21,704 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:07:21,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:07:21,705 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:07:21,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:07:21,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:07:21,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:07:21,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:07:21,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:07:21,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:07:21,706 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:07:21,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:07:21,707 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:07:21,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:07:21,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:07:21,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:07:21,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:07:21,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:07:21,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:07:21,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:07:21,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:07:21,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:07:21,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:07:21,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:07:21,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:07:21,709 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:07:21,709 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:07:22,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:07:22,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:07:22,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:07:22,118 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:07:22,119 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:07:22,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/nr2.c [2020-10-29 04:07:22,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ebf9f022/0b869dcf21c5462fb87cd2b512546ac3/FLAG1461923f1 [2020-10-29 04:07:22,876 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:07:22,877 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/nr2.c [2020-10-29 04:07:22,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ebf9f022/0b869dcf21c5462fb87cd2b512546ac3/FLAG1461923f1 [2020-10-29 04:07:23,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ebf9f022/0b869dcf21c5462fb87cd2b512546ac3 [2020-10-29 04:07:23,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:07:23,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:07:23,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:07:23,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:07:23,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:07:23,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:07:23" (1/1) ... [2020-10-29 04:07:23,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204ef500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:23, skipping insertion in model container [2020-10-29 04:07:23,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:07:23" (1/1) ... [2020-10-29 04:07:23,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:07:23,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:07:23,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:07:23,465 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:07:23,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:07:23,507 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:07:23,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:23 WrapperNode [2020-10-29 04:07:23,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:07:23,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:07:23,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:07:23,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:07:23,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:23" (1/1) ... [2020-10-29 04:07:23,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:23" (1/1) ... [2020-10-29 04:07:23,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:23" (1/1) ... [2020-10-29 04:07:23,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:23" (1/1) ... [2020-10-29 04:07:23,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:23" (1/1) ... [2020-10-29 04:07:23,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:23" (1/1) ... [2020-10-29 04:07:23,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:23" (1/1) ... [2020-10-29 04:07:23,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:07:23,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:07:23,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:07:23,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:07:23,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:23" (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 [2020-10-29 04:07:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:07:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:07:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:07:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 04:07:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 04:07:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:07:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:07:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:07:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:07:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:07:23,627 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 04:07:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 04:07:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:07:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:07:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:07:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:07:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:07:23,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:07:23,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:07:23,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:07:24,047 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:07:24,047 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 04:07:24,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:07:24 BoogieIcfgContainer [2020-10-29 04:07:24,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:07:24,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:07:24,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:07:24,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:07:24,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:07:23" (1/3) ... [2020-10-29 04:07:24,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@abcc397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:07:24, skipping insertion in model container [2020-10-29 04:07:24,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:07:23" (2/3) ... [2020-10-29 04:07:24,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@abcc397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:07:24, skipping insertion in model container [2020-10-29 04:07:24,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:07:24" (3/3) ... [2020-10-29 04:07:24,069 INFO L111 eAbstractionObserver]: Analyzing ICFG nr2.c [2020-10-29 04:07:24,084 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:07:24,089 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:07:24,105 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:07:24,161 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:07:24,161 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:07:24,162 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:07:24,162 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:07:24,162 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:07:24,162 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:07:24,162 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:07:24,162 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:07:24,186 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-10-29 04:07:24,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 04:07:24,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:24,195 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] [2020-10-29 04:07:24,196 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:24,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:24,204 INFO L82 PathProgramCache]: Analyzing trace with hash -71068241, now seen corresponding path program 1 times [2020-10-29 04:07:24,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:24,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199973683] [2020-10-29 04:07:24,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:24,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:24,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:24,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:24,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 04:07:24,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:07:24,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-29 04:07:24,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:24,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:24,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:24,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 04:07:24,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:24,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 04:07:24,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:24,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:24,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:24,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:24,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:24,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 04:07:24,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:24,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:24,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:24,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:24,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:24,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:24,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:24,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:24,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:24,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:24,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:24,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:07:24,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:07:24,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:24,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:24,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:24,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:24,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:24,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:24,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:07:24,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199973683] [2020-10-29 04:07:24,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:07:24,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 04:07:24,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222771829] [2020-10-29 04:07:24,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-29 04:07:24,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:24,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-29 04:07:24,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-29 04:07:24,898 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2020-10-29 04:07:25,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:25,105 INFO L93 Difference]: Finished difference Result 68 states and 89 transitions. [2020-10-29 04:07:25,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 04:07:25,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-29 04:07:25,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:25,124 INFO L225 Difference]: With dead ends: 68 [2020-10-29 04:07:25,124 INFO L226 Difference]: Without dead ends: 32 [2020-10-29 04:07:25,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-29 04:07:25,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-29 04:07:25,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-29 04:07:25,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-29 04:07:25,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-10-29 04:07:25,204 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 23 [2020-10-29 04:07:25,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:25,205 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-10-29 04:07:25,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-29 04:07:25,206 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-10-29 04:07:25,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 04:07:25,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:25,209 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] [2020-10-29 04:07:25,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:07:25,210 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:25,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:25,215 INFO L82 PathProgramCache]: Analyzing trace with hash -2036094566, now seen corresponding path program 1 times [2020-10-29 04:07:25,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:25,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281076243] [2020-10-29 04:07:25,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:25,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:25,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:25,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:26,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:26,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 04:07:26,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:07:26,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 903 [2020-10-29 04:07:26,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:26,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:07:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:07:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 04:07:26,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:26,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:26,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:26,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:26,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:26,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:26,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:07:26,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:26,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:26,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:26,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:26,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:26,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:26,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:26,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:26,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:26,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:26,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:26,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:07:26,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:26,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:26,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:26,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:26,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:26,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:26,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:07:26,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281076243] [2020-10-29 04:07:26,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:07:26,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 04:07:26,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433897387] [2020-10-29 04:07:26,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:07:26,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:26,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:07:26,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:07:26,303 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 5 states. [2020-10-29 04:07:26,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:26,490 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-10-29 04:07:26,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 04:07:26,491 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-29 04:07:26,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:26,494 INFO L225 Difference]: With dead ends: 51 [2020-10-29 04:07:26,495 INFO L226 Difference]: Without dead ends: 38 [2020-10-29 04:07:26,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:07:26,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-29 04:07:26,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 33. [2020-10-29 04:07:26,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-29 04:07:26,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-10-29 04:07:26,510 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 23 [2020-10-29 04:07:26,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:26,511 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-10-29 04:07:26,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:07:26,511 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-10-29 04:07:26,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-29 04:07:26,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:26,512 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] [2020-10-29 04:07:26,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:07:26,513 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:26,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:26,514 INFO L82 PathProgramCache]: Analyzing trace with hash -640613893, now seen corresponding path program 1 times [2020-10-29 04:07:26,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:26,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664396350] [2020-10-29 04:07:26,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:26,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:26,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:26,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-29 04:07:26,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:26,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 04:07:26,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:26,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:26,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:26,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 04:07:26,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:07:26,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:26,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:26,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:26,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:26,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:26,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:26,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:07:26,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:26,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:26,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:26,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:26,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:26,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:26,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:26,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:26,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:26,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:26,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:26,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:07:26,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:26,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:26,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:26,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:26,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:07:26,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664396350] [2020-10-29 04:07:26,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:07:26,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:07:26,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241810116] [2020-10-29 04:07:26,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:07:26,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:26,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:07:26,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:07:26,687 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 4 states. [2020-10-29 04:07:26,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:26,788 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2020-10-29 04:07:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:07:26,789 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-29 04:07:26,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:26,790 INFO L225 Difference]: With dead ends: 54 [2020-10-29 04:07:26,790 INFO L226 Difference]: Without dead ends: 36 [2020-10-29 04:07:26,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:07:26,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-29 04:07:26,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2020-10-29 04:07:26,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-29 04:07:26,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-10-29 04:07:26,799 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 26 [2020-10-29 04:07:26,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:26,800 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-10-29 04:07:26,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:07:26,800 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-10-29 04:07:26,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-29 04:07:26,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:26,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:26,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:07:26,802 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:26,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:26,802 INFO L82 PathProgramCache]: Analyzing trace with hash 113037761, now seen corresponding path program 1 times [2020-10-29 04:07:26,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:26,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067106133] [2020-10-29 04:07:26,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:26,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:26,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:27,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:27,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:27,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 04:07:27,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:07:27,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-10-29 04:07:27,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:27,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:27,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:07:27,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:07:27,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 04:07:27,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:27,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:27,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:27,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:27,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:27,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:27,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:07:27,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:27,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:27,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:27,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:27,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:27,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:27,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:27,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:27,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:27,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:07:27,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:27,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:27,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:27,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:27,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:27,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:27,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:07:27,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067106133] [2020-10-29 04:07:27,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:27,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 04:07:27,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180360447] [2020-10-29 04:07:27,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:07:27,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:27,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:07:27,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:07:27,489 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 6 states. [2020-10-29 04:07:27,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:27,622 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2020-10-29 04:07:27,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 04:07:27,623 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-10-29 04:07:27,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:27,624 INFO L225 Difference]: With dead ends: 56 [2020-10-29 04:07:27,624 INFO L226 Difference]: Without dead ends: 37 [2020-10-29 04:07:27,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:07:27,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-29 04:07:27,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-29 04:07:27,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-29 04:07:27,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2020-10-29 04:07:27,634 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 29 [2020-10-29 04:07:27,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:27,634 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2020-10-29 04:07:27,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:07:27,634 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2020-10-29 04:07:27,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-29 04:07:27,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:27,636 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 04:07:27,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:07:27,636 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:27,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:27,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1768599869, now seen corresponding path program 1 times [2020-10-29 04:07:27,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:27,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448255655] [2020-10-29 04:07:27,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:27,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:27,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:27,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:28,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:28,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 04:07:28,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:07:28,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1062 [2020-10-29 04:07:28,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:28,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:28,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 04:07:28,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:07:28,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 04:07:28,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:28,940 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2020-10-29 04:07:29,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:29,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:29,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:29,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:29,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:29,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 04:07:29,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:29,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:29,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:29,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:29,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:29,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:29,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:29,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:29,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:29,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:29,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 04:07:29,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:29,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:29,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:29,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:29,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-29 04:07:29,146 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:07:29,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448255655] [2020-10-29 04:07:29,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:29,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 04:07:29,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507754037] [2020-10-29 04:07:29,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 04:07:29,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:29,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 04:07:29,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-29 04:07:29,153 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand 10 states. [2020-10-29 04:07:29,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:29,922 INFO L93 Difference]: Finished difference Result 70 states and 84 transitions. [2020-10-29 04:07:29,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 04:07:29,923 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-10-29 04:07:29,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:29,924 INFO L225 Difference]: With dead ends: 70 [2020-10-29 04:07:29,924 INFO L226 Difference]: Without dead ends: 58 [2020-10-29 04:07:29,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2020-10-29 04:07:29,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-29 04:07:29,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 39. [2020-10-29 04:07:29,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-29 04:07:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2020-10-29 04:07:29,935 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 32 [2020-10-29 04:07:29,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:29,935 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2020-10-29 04:07:29,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 04:07:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2020-10-29 04:07:29,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-29 04:07:29,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:29,937 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 04:07:29,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:07:29,937 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:29,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:29,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1711341567, now seen corresponding path program 1 times [2020-10-29 04:07:29,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:29,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553201789] [2020-10-29 04:07:29,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:29,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:29,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:30,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:30,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:30,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:30,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 04:07:30,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:07:30,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-10-29 04:07:30,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:30,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:30,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 04:07:30,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:07:30,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-29 04:07:30,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:31,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:31,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:31,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:31,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:31,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:31,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:07:31,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:31,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:31,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:31,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:31,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:31,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-29 04:07:31,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:31,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:31,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:31,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:31,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:31,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:07:31,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:31,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:31,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:31,379 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:07:31,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [553201789] [2020-10-29 04:07:31,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:31,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 04:07:31,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533626645] [2020-10-29 04:07:31,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 04:07:31,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:31,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 04:07:31,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:07:31,383 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 12 states. [2020-10-29 04:07:32,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:32,421 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2020-10-29 04:07:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 04:07:32,422 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2020-10-29 04:07:32,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:32,424 INFO L225 Difference]: With dead ends: 64 [2020-10-29 04:07:32,424 INFO L226 Difference]: Without dead ends: 61 [2020-10-29 04:07:32,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2020-10-29 04:07:32,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-29 04:07:32,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 44. [2020-10-29 04:07:32,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-29 04:07:32,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-10-29 04:07:32,448 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 32 [2020-10-29 04:07:32,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:32,450 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-10-29 04:07:32,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 04:07:32,451 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-10-29 04:07:32,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-29 04:07:32,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:32,452 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:32,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:07:32,453 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:32,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:32,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1228984825, now seen corresponding path program 1 times [2020-10-29 04:07:32,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:32,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081470713] [2020-10-29 04:07:32,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:32,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:32,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:32,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:32,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:33,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:34,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:35,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:35,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-29 04:07:35,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:07:35,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3441 [2020-10-29 04:07:35,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:35,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:35,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 04:07:35,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:07:35,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-29 04:07:35,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:36,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:36,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:36,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:36,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:36,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:36,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:07:36,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:36,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:36,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:36,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:36,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:36,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:36,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:36,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:36,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:36,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:36,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:36,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:07:36,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:36,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:36,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:36,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:36,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:36,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:36,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 04:07:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:36,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:36,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:36,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:36,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:36,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:07:36,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:36,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:36,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:36,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:36,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:36,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:36,151 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:07:36,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081470713] [2020-10-29 04:07:36,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:36,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 04:07:36,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669542675] [2020-10-29 04:07:36,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 04:07:36,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:36,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 04:07:36,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:07:36,153 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 12 states. [2020-10-29 04:07:36,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:36,875 INFO L93 Difference]: Finished difference Result 97 states and 118 transitions. [2020-10-29 04:07:36,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 04:07:36,876 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2020-10-29 04:07:36,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:36,882 INFO L225 Difference]: With dead ends: 97 [2020-10-29 04:07:36,882 INFO L226 Difference]: Without dead ends: 94 [2020-10-29 04:07:36,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:07:36,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-29 04:07:36,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 68. [2020-10-29 04:07:36,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-29 04:07:36,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2020-10-29 04:07:36,920 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 41 [2020-10-29 04:07:36,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:36,923 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2020-10-29 04:07:36,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 04:07:36,924 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2020-10-29 04:07:36,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-29 04:07:36,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:36,929 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:36,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:07:36,929 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:36,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:36,931 INFO L82 PathProgramCache]: Analyzing trace with hash 531437953, now seen corresponding path program 2 times [2020-10-29 04:07:36,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:36,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134814125] [2020-10-29 04:07:36,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:36,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:36,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:37,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:37,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:37,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:37,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:37,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:38,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:38,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:38,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:39,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:40,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:40,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 04:07:40,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-29 04:07:40,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3093 [2020-10-29 04:07:40,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:40,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 04:07:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:07:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-29 04:07:40,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:40,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:40,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:40,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:40,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:40,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:40,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:07:40,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:40,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:40,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:40,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:40,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:40,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:40,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:40,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:40,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:40,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:40,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:40,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:07:40,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:40,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:40,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:40,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:40,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:40,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:40,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 04:07:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:40,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:40,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:40,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:40,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:40,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:07:40,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:40,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:40,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:40,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:40,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:40,285 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 04:07:40,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134814125] [2020-10-29 04:07:40,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:40,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 04:07:40,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966343049] [2020-10-29 04:07:40,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 04:07:40,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:40,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 04:07:40,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:07:40,288 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand 12 states. [2020-10-29 04:07:40,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:40,997 INFO L93 Difference]: Finished difference Result 120 states and 148 transitions. [2020-10-29 04:07:40,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 04:07:40,997 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2020-10-29 04:07:40,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:40,999 INFO L225 Difference]: With dead ends: 120 [2020-10-29 04:07:40,999 INFO L226 Difference]: Without dead ends: 117 [2020-10-29 04:07:41,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2020-10-29 04:07:41,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-29 04:07:41,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 73. [2020-10-29 04:07:41,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-29 04:07:41,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 87 transitions. [2020-10-29 04:07:41,020 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 87 transitions. Word has length 44 [2020-10-29 04:07:41,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:41,020 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 87 transitions. [2020-10-29 04:07:41,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 04:07:41,020 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 87 transitions. [2020-10-29 04:07:41,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-29 04:07:41,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:41,022 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:41,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 04:07:41,022 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:41,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:41,023 INFO L82 PathProgramCache]: Analyzing trace with hash 811616511, now seen corresponding path program 3 times [2020-10-29 04:07:41,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:41,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383402782] [2020-10-29 04:07:41,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:41,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:41,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:41,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:41,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-29 04:07:41,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:07:41,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 703 [2020-10-29 04:07:41,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:41,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:41,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 04:07:41,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:07:41,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 04:07:41,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:41,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:41,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:41,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:41,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:41,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:41,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:07:41,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:41,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:41,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:41,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:41,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:41,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:41,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:41,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:41,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:41,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:41,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:41,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:07:41,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 04:07:41,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:41,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:41,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:41,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:41,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:41,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:41,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 04:07:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:41,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:41,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:41,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:41,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:41,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:07:41,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:41,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:41,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:41,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:41,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:41,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:41,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 04:07:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:41,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:41,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:41,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:41,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:41,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:07:41,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:41,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:41,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:41,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:41,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:41,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:41,956 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-29 04:07:41,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383402782] [2020-10-29 04:07:41,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:41,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 04:07:41,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197199708] [2020-10-29 04:07:41,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 04:07:41,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:41,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 04:07:41,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 04:07:41,968 INFO L87 Difference]: Start difference. First operand 73 states and 87 transitions. Second operand 10 states. [2020-10-29 04:07:42,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:42,509 INFO L93 Difference]: Finished difference Result 136 states and 163 transitions. [2020-10-29 04:07:42,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 04:07:42,509 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2020-10-29 04:07:42,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:42,511 INFO L225 Difference]: With dead ends: 136 [2020-10-29 04:07:42,511 INFO L226 Difference]: Without dead ends: 98 [2020-10-29 04:07:42,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:07:42,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-29 04:07:42,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 75. [2020-10-29 04:07:42,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-29 04:07:42,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 89 transitions. [2020-10-29 04:07:42,538 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 89 transitions. Word has length 50 [2020-10-29 04:07:42,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:42,538 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 89 transitions. [2020-10-29 04:07:42,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 04:07:42,539 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 89 transitions. [2020-10-29 04:07:42,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-29 04:07:42,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:42,540 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:42,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 04:07:42,541 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:42,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:42,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1309756694, now seen corresponding path program 4 times [2020-10-29 04:07:42,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:42,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661162990] [2020-10-29 04:07:42,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:42,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:42,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:42,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:42,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:42,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:43,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:43,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:43,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:43,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:43,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:43,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:45,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:45,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:45,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:45,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:45,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:45,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:45,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:46,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:46,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:46,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:47,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:47,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:47,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:47,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:47,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:47,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-29 04:07:47,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 25 [2020-10-29 04:07:47,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-29 04:07:47,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:47,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 04:07:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:07:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 04:07:47,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:47,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:47,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:47,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:47,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:47,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:47,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 04:07:47,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:47,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:47,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:47,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:47,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:47,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:47,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:47,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:47,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:47,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:47,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:47,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:07:47,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:47,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:47,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:47,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:47,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:47,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:47,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 04:07:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:47,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:47,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:47,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:47,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:47,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:07:47,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:47,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:47,986 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 31 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 04:07:47,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661162990] [2020-10-29 04:07:47,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:47,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:07:47,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153379487] [2020-10-29 04:07:47,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:07:47,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:47,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:07:47,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:07:47,989 INFO L87 Difference]: Start difference. First operand 75 states and 89 transitions. Second operand 13 states. [2020-10-29 04:07:49,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:49,486 INFO L93 Difference]: Finished difference Result 131 states and 160 transitions. [2020-10-29 04:07:49,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 04:07:49,488 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 50 [2020-10-29 04:07:49,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:49,490 INFO L225 Difference]: With dead ends: 131 [2020-10-29 04:07:49,490 INFO L226 Difference]: Without dead ends: 128 [2020-10-29 04:07:49,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=141, Invalid=615, Unknown=0, NotChecked=0, Total=756 [2020-10-29 04:07:49,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-29 04:07:49,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 63. [2020-10-29 04:07:49,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-29 04:07:49,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2020-10-29 04:07:49,525 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 50 [2020-10-29 04:07:49,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:49,526 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2020-10-29 04:07:49,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:07:49,526 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2020-10-29 04:07:49,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-29 04:07:49,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:49,531 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:49,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 04:07:49,531 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:49,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:49,532 INFO L82 PathProgramCache]: Analyzing trace with hash -712731780, now seen corresponding path program 5 times [2020-10-29 04:07:49,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:49,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841233033] [2020-10-29 04:07:49,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:49,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:49,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:49,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:49,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:49,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:49,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:50,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:50,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:50,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:50,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:51,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:51,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:52,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:52,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:53,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:54,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:54,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:54,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:54,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:54,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:54,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 04:07:54,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-29 04:07:54,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 04:07:54,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:54,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:54,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 04:07:54,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:07:54,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-29 04:07:54,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:54,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:54,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:54,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:54,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:54,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:54,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:07:54,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:54,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:54,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:54,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:54,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:54,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:54,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:54,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:54,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:54,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:54,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:54,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:07:54,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:54,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:54,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:54,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:54,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:54,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:54,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 04:07:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:54,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:54,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:54,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:54,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:54,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:07:54,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:54,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:54,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:07:54,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 04:07:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:54,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:54,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:54,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:54,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:54,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:07:54,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:54,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:54,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:54,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:54,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:54,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:54,890 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-29 04:07:54,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841233033] [2020-10-29 04:07:54,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:54,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 04:07:54,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179440820] [2020-10-29 04:07:54,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 04:07:54,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:54,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 04:07:54,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:07:54,894 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand 12 states. [2020-10-29 04:07:55,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:55,634 INFO L93 Difference]: Finished difference Result 131 states and 160 transitions. [2020-10-29 04:07:55,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 04:07:55,639 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 59 [2020-10-29 04:07:55,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:55,641 INFO L225 Difference]: With dead ends: 131 [2020-10-29 04:07:55,641 INFO L226 Difference]: Without dead ends: 114 [2020-10-29 04:07:55,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:07:55,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-29 04:07:55,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 88. [2020-10-29 04:07:55,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-29 04:07:55,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 107 transitions. [2020-10-29 04:07:55,678 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 107 transitions. Word has length 59 [2020-10-29 04:07:55,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:55,680 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 107 transitions. [2020-10-29 04:07:55,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 04:07:55,680 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 107 transitions. [2020-10-29 04:07:55,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-29 04:07:55,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:55,687 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:55,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 04:07:55,687 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:55,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:55,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1338252218, now seen corresponding path program 6 times [2020-10-29 04:07:55,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:55,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628000941] [2020-10-29 04:07:55,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:55,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:55,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:55,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:55,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:55,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:56,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:56,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:56,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:57,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:57,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 04:07:57,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 04:07:57,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1632 [2020-10-29 04:07:57,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:57,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 04:07:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:07:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 04:07:57,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:57,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:07:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:57,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:57,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:57,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:07:57,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:57,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:07:57,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:57,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:57,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:57,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:57,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:57,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:57,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:07:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:57,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:57,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:57,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:57,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:57,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:07:57,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:57,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:57,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:07:57,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:57,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:07:57,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:57,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 04:07:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:57,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:57,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:57,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:57,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:57,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:07:57,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:57,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:57,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:57,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:57,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:57,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:57,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 04:07:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:57,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:57,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:07:57,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:07:57,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:07:57,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:07:57,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:07:57,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:07:57,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:07:57,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:07:57,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:07:57,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:07:57,579 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 35 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-29 04:07:57,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628000941] [2020-10-29 04:07:57,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:07:57,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:07:57,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982756009] [2020-10-29 04:07:57,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:07:57,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:07:57,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:07:57,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:07:57,582 INFO L87 Difference]: Start difference. First operand 88 states and 107 transitions. Second operand 13 states. [2020-10-29 04:07:58,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:07:58,460 INFO L93 Difference]: Finished difference Result 151 states and 189 transitions. [2020-10-29 04:07:58,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 04:07:58,460 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 59 [2020-10-29 04:07:58,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:07:58,462 INFO L225 Difference]: With dead ends: 151 [2020-10-29 04:07:58,462 INFO L226 Difference]: Without dead ends: 148 [2020-10-29 04:07:58,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2020-10-29 04:07:58,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-29 04:07:58,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 116. [2020-10-29 04:07:58,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-29 04:07:58,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 144 transitions. [2020-10-29 04:07:58,493 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 144 transitions. Word has length 59 [2020-10-29 04:07:58,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:07:58,493 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 144 transitions. [2020-10-29 04:07:58,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:07:58,493 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 144 transitions. [2020-10-29 04:07:58,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-29 04:07:58,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:07:58,494 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:07:58,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 04:07:58,495 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:07:58,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:07:58,495 INFO L82 PathProgramCache]: Analyzing trace with hash 963810858, now seen corresponding path program 7 times [2020-10-29 04:07:58,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:07:58,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059666237] [2020-10-29 04:07:58,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:07:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:07:58,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:58,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:58,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:58,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:58,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:58,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:58,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:59,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:59,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:59,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:07:59,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:00,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:01,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:01,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:01,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:01,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:01,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:02,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:02,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:02,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:02,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:02,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:02,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:02,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:03,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:03,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:03,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:03,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:03,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:03,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 04:08:03,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 34 [2020-10-29 04:08:03,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 04:08:03,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:03,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:03,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 04:08:03,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:08:03,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 04:08:03,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:03,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:03,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:03,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:03,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:03,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:03,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:03,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:03,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:03,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:03,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:03,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:03,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:03,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:03,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:03,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:03,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:03,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:03,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:08:03,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:03,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:03,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:03,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:03,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:03,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:03,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 04:08:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:03,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:03,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:03,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:03,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:03,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:03,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:03,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:03,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:03,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:03,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:03,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:03,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 04:08:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:03,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:03,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:03,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:03,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:03,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:03,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:03,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:03,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:03,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:03,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:03,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:03,822 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 47 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-29 04:08:03,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059666237] [2020-10-29 04:08:03,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:03,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:08:03,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078824524] [2020-10-29 04:08:03,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:08:03,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:03,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:08:03,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:08:03,825 INFO L87 Difference]: Start difference. First operand 116 states and 144 transitions. Second operand 13 states. [2020-10-29 04:08:05,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:05,116 INFO L93 Difference]: Finished difference Result 175 states and 217 transitions. [2020-10-29 04:08:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 04:08:05,117 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 62 [2020-10-29 04:08:05,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:05,119 INFO L225 Difference]: With dead ends: 175 [2020-10-29 04:08:05,119 INFO L226 Difference]: Without dead ends: 153 [2020-10-29 04:08:05,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=161, Invalid=709, Unknown=0, NotChecked=0, Total=870 [2020-10-29 04:08:05,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-29 04:08:05,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 68. [2020-10-29 04:08:05,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-29 04:08:05,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2020-10-29 04:08:05,137 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 62 [2020-10-29 04:08:05,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:05,137 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2020-10-29 04:08:05,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:08:05,137 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2020-10-29 04:08:05,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 04:08:05,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:05,139 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:05,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 04:08:05,139 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:05,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:05,140 INFO L82 PathProgramCache]: Analyzing trace with hash -894016856, now seen corresponding path program 8 times [2020-10-29 04:08:05,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:05,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1134974970] [2020-10-29 04:08:05,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:05,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:05,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:05,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:05,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:05,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:05,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:05,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:06,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:06,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:06,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:06,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:06,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:07,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:07,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:07,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:08,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:08,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:08,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:09,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:10,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:10,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 04:08:10,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-29 04:08:10,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 04:08:10,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:10,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 04:08:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:08:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 04:08:10,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:10,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:10,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:10,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:10,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:10,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:10,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:10,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:10,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:10,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:10,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:10,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:10,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:10,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:10,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:10,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:10,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:10,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:10,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:08:10,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:10,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:10,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:10,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:10,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:10,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:10,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 04:08:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:10,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:10,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:10,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:10,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:10,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:10,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:10,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:10,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:10,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 04:08:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:10,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:10,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:10,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:10,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:10,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:08:10,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:10,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:10,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:10,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:10,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:10,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:10,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:08:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:10,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:10,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:10,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:10,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:10,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:08:10,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:10,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:10,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:10,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:10,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:10,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 04:08:10,473 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 6 proven. 49 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-29 04:08:10,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1134974970] [2020-10-29 04:08:10,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:10,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 04:08:10,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393599449] [2020-10-29 04:08:10,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 04:08:10,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:10,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 04:08:10,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-10-29 04:08:10,479 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand 15 states. [2020-10-29 04:08:11,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:11,551 INFO L93 Difference]: Finished difference Result 128 states and 157 transitions. [2020-10-29 04:08:11,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 04:08:11,552 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 68 [2020-10-29 04:08:11,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:11,554 INFO L225 Difference]: With dead ends: 128 [2020-10-29 04:08:11,554 INFO L226 Difference]: Without dead ends: 125 [2020-10-29 04:08:11,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=143, Invalid=849, Unknown=0, NotChecked=0, Total=992 [2020-10-29 04:08:11,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-29 04:08:11,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 108. [2020-10-29 04:08:11,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-29 04:08:11,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 132 transitions. [2020-10-29 04:08:11,584 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 132 transitions. Word has length 68 [2020-10-29 04:08:11,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:11,584 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 132 transitions. [2020-10-29 04:08:11,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 04:08:11,585 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 132 transitions. [2020-10-29 04:08:11,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-29 04:08:11,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:11,592 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:11,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 04:08:11,592 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:11,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:11,593 INFO L82 PathProgramCache]: Analyzing trace with hash 796113278, now seen corresponding path program 9 times [2020-10-29 04:08:11,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:11,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1011569203] [2020-10-29 04:08:11,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:11,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:11,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:12,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:12,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 04:08:12,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:08:12,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 687 [2020-10-29 04:08:12,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:12,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:12,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 04:08:12,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:08:12,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 04:08:12,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:12,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:12,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:12,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:12,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:12,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:12,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:12,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:12,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:12,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:12,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:12,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:12,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:12,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:12,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:12,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:12,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:12,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:12,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:08:12,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:08:12,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:12,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:12,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:12,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:12,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:12,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:12,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 04:08:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:12,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:12,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:12,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:12,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:12,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:12,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:12,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:12,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:12,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:12,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 04:08:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:12,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:12,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:12,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:12,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:12,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:12,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:12,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:12,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:12,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:12,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:12,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:12,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:08:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:12,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:12,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:12,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:12,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:12,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:12,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:12,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:12,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:12,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:12,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:12,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:12,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:08:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:12,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:12,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:12,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:12,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:12,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:12,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:12,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:12,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:12,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:12,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:12,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:12,548 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 50 proven. 21 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-29 04:08:12,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1011569203] [2020-10-29 04:08:12,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:12,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:08:12,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204305569] [2020-10-29 04:08:12,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:08:12,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:12,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:08:12,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:08:12,550 INFO L87 Difference]: Start difference. First operand 108 states and 132 transitions. Second operand 13 states. [2020-10-29 04:08:13,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:13,353 INFO L93 Difference]: Finished difference Result 180 states and 217 transitions. [2020-10-29 04:08:13,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 04:08:13,354 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 77 [2020-10-29 04:08:13,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:13,356 INFO L225 Difference]: With dead ends: 180 [2020-10-29 04:08:13,356 INFO L226 Difference]: Without dead ends: 127 [2020-10-29 04:08:13,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=465, Unknown=0, NotChecked=0, Total=600 [2020-10-29 04:08:13,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-29 04:08:13,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 110. [2020-10-29 04:08:13,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-29 04:08:13,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 134 transitions. [2020-10-29 04:08:13,388 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 134 transitions. Word has length 77 [2020-10-29 04:08:13,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:13,389 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 134 transitions. [2020-10-29 04:08:13,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:08:13,389 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 134 transitions. [2020-10-29 04:08:13,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-29 04:08:13,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:13,390 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:13,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 04:08:13,391 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:13,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:13,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1689393179, now seen corresponding path program 10 times [2020-10-29 04:08:13,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:13,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581334171] [2020-10-29 04:08:13,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:13,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:13,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:13,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:13,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:13,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:13,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:13,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:13,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:13,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:14,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:14,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:14,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:14,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:14,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:14,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:15,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:16,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:16,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:16,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:16,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:16,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:16,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:16,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:17,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:18,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:18,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:18,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:18,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 04:08:18,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 32 [2020-10-29 04:08:18,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 04:08:18,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:18,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:18,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 04:08:18,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:08:18,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 04:08:18,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:18,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:18,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:18,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:18,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:18,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:18,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:18,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:18,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:18,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:18,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:18,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:18,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:18,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:18,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:18,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:18,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:18,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:18,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:18,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:18,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:18,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:18,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:18,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:18,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:18,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 04:08:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:18,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:18,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:18,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:18,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:18,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:18,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:18,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:18,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:18,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:18,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:18,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:18,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:08:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:18,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:18,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:18,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:18,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:18,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:18,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:18,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:18,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:18,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:08:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:18,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:18,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:18,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:18,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:18,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:18,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:18,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:18,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:18,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:18,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:18,835 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 6 proven. 91 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-29 04:08:18,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581334171] [2020-10-29 04:08:18,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:18,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 04:08:18,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645689508] [2020-10-29 04:08:18,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 04:08:18,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:18,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 04:08:18,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2020-10-29 04:08:18,842 INFO L87 Difference]: Start difference. First operand 110 states and 134 transitions. Second operand 16 states. [2020-10-29 04:08:20,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:20,832 INFO L93 Difference]: Finished difference Result 202 states and 252 transitions. [2020-10-29 04:08:20,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 04:08:20,835 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 77 [2020-10-29 04:08:20,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:20,836 INFO L225 Difference]: With dead ends: 202 [2020-10-29 04:08:20,837 INFO L226 Difference]: Without dead ends: 199 [2020-10-29 04:08:20,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=208, Invalid=1124, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 04:08:20,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-10-29 04:08:20,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 87. [2020-10-29 04:08:20,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-29 04:08:20,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 103 transitions. [2020-10-29 04:08:20,859 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 103 transitions. Word has length 77 [2020-10-29 04:08:20,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:20,859 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 103 transitions. [2020-10-29 04:08:20,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 04:08:20,859 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 103 transitions. [2020-10-29 04:08:20,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-29 04:08:20,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:20,861 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:20,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 04:08:20,861 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:20,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:20,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1979828449, now seen corresponding path program 11 times [2020-10-29 04:08:20,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:20,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257707711] [2020-10-29 04:08:20,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:20,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:21,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:22,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:22,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:22,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:22,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:22,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:22,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:22,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:22,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:23,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:23,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:23,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:23,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:24,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:24,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:24,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:25,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:25,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-29 04:08:25,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 33 [2020-10-29 04:08:25,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 04:08:25,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:25,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:25,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 04:08:25,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:08:25,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 04:08:25,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:26,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:26,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:26,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:26,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:26,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:26,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:26,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:26,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:26,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:26,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:26,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:26,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:26,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:26,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:26,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:26,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:26,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:26,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:26,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:26,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:26,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:26,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 04:08:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:26,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:26,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:26,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:26,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:26,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:26,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:26,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:26,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:26,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:08:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:26,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:26,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:26,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:26,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:26,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:26,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:26,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:26,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:08:26,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:08:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:26,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:26,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:26,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:26,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:26,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:26,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:26,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:26,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:26,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:26,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:26,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:26,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:08:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:26,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:26,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:26,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:26,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:26,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:26,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:26,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:26,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:26,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:26,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:26,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:26,277 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 12 proven. 103 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-29 04:08:26,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257707711] [2020-10-29 04:08:26,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:26,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 04:08:26,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635505467] [2020-10-29 04:08:26,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 04:08:26,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:26,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 04:08:26,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-10-29 04:08:26,280 INFO L87 Difference]: Start difference. First operand 87 states and 103 transitions. Second operand 15 states. [2020-10-29 04:08:27,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:27,482 INFO L93 Difference]: Finished difference Result 175 states and 217 transitions. [2020-10-29 04:08:27,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 04:08:27,483 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 86 [2020-10-29 04:08:27,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:27,485 INFO L225 Difference]: With dead ends: 175 [2020-10-29 04:08:27,486 INFO L226 Difference]: Without dead ends: 158 [2020-10-29 04:08:27,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=114, Invalid=756, Unknown=0, NotChecked=0, Total=870 [2020-10-29 04:08:27,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-29 04:08:27,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 123. [2020-10-29 04:08:27,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-29 04:08:27,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 152 transitions. [2020-10-29 04:08:27,519 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 152 transitions. Word has length 86 [2020-10-29 04:08:27,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:27,519 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 152 transitions. [2020-10-29 04:08:27,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 04:08:27,519 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 152 transitions. [2020-10-29 04:08:27,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-29 04:08:27,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:27,521 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:27,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 04:08:27,521 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:27,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:27,522 INFO L82 PathProgramCache]: Analyzing trace with hash -776798817, now seen corresponding path program 12 times [2020-10-29 04:08:27,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:27,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132488545] [2020-10-29 04:08:27,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:27,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:27,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:27,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:27,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:27,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:27,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:28,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:28,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:28,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:28,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:29,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:29,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:32,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:32,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-29 04:08:32,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 04:08:32,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4727 [2020-10-29 04:08:32,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:32,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 04:08:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:08:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 04:08:32,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:32,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:32,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:32,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:32,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:32,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:32,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:32,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:32,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:32,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:32,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:32,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:32,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:32,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:32,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:32,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:32,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:32,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:32,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:32,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:32,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:32,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:32,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:32,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:32,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:32,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 04:08:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:32,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:32,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:32,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:32,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:32,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:32,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:32,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:32,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:32,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:32,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:32,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:32,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:08:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:32,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:32,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:32,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:32,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:32,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:32,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:32,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:32,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:32,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:32,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:32,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:32,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:08:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:32,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:32,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:32,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:32,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:32,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:32,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:32,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:32,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:32,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:32,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:32,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:32,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:08:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:32,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:32,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:32,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:32,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:32,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:32,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:32,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:32,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:32,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:32,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:32,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:32,596 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 8 proven. 105 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-29 04:08:32,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132488545] [2020-10-29 04:08:32,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:32,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 04:08:32,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644254542] [2020-10-29 04:08:32,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 04:08:32,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:32,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 04:08:32,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2020-10-29 04:08:32,598 INFO L87 Difference]: Start difference. First operand 123 states and 152 transitions. Second operand 16 states. [2020-10-29 04:08:34,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:34,042 INFO L93 Difference]: Finished difference Result 210 states and 266 transitions. [2020-10-29 04:08:34,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 04:08:34,043 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 86 [2020-10-29 04:08:34,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:34,047 INFO L225 Difference]: With dead ends: 210 [2020-10-29 04:08:34,047 INFO L226 Difference]: Without dead ends: 207 [2020-10-29 04:08:34,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=117, Invalid=813, Unknown=0, NotChecked=0, Total=930 [2020-10-29 04:08:34,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-10-29 04:08:34,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 162. [2020-10-29 04:08:34,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-29 04:08:34,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 204 transitions. [2020-10-29 04:08:34,106 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 204 transitions. Word has length 86 [2020-10-29 04:08:34,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:34,107 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 204 transitions. [2020-10-29 04:08:34,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 04:08:34,107 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 204 transitions. [2020-10-29 04:08:34,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-29 04:08:34,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:34,109 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:34,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 04:08:34,109 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:34,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:34,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1612988009, now seen corresponding path program 13 times [2020-10-29 04:08:34,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:34,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981652073] [2020-10-29 04:08:34,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:34,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:34,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:35,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:35,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:35,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:35,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:35,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:35,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:36,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:37,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:37,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:37,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:39,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-29 04:08:39,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-29 04:08:39,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 04:08:39,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:39,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:39,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:08:39,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:08:39,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 04:08:39,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:39,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:39,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:39,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:39,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:39,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:39,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:39,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:39,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:39,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:39,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:39,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:39,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:39,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:39,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:39,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:39,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:39,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:39,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:39,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:39,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:39,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:39,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:39,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 04:08:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:39,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:39,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:39,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:39,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:39,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:39,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:39,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:39,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:08:39,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:39,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:39,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 04:08:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:39,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:39,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:39,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:39,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:39,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:39,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:39,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:39,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:08:39,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:39,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:39,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:08:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:39,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:39,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:39,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:39,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:39,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:39,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:39,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:39,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:08:39,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:39,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:39,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:08:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:39,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:39,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:39,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:39,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:39,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:39,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:39,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:39,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:08:39,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:39,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:39,241 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 56 proven. 10 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-29 04:08:39,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981652073] [2020-10-29 04:08:39,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:39,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:08:39,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918652614] [2020-10-29 04:08:39,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:08:39,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:39,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:08:39,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:08:39,243 INFO L87 Difference]: Start difference. First operand 162 states and 204 transitions. Second operand 5 states. [2020-10-29 04:08:39,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:39,386 INFO L93 Difference]: Finished difference Result 239 states and 298 transitions. [2020-10-29 04:08:39,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:08:39,387 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2020-10-29 04:08:39,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:39,388 INFO L225 Difference]: With dead ends: 239 [2020-10-29 04:08:39,388 INFO L226 Difference]: Without dead ends: 94 [2020-10-29 04:08:39,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:08:39,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-29 04:08:39,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2020-10-29 04:08:39,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-29 04:08:39,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2020-10-29 04:08:39,408 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 89 [2020-10-29 04:08:39,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:39,408 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2020-10-29 04:08:39,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:08:39,408 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2020-10-29 04:08:39,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-29 04:08:39,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:39,409 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:39,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 04:08:39,410 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:39,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:39,410 INFO L82 PathProgramCache]: Analyzing trace with hash -63017245, now seen corresponding path program 14 times [2020-10-29 04:08:39,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:39,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1673792997] [2020-10-29 04:08:39,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:39,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:39,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:40,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:44,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 04:08:44,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 04:08:44,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 04:08:44,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:44,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 04:08:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:08:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 04:08:44,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:44,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:44,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:44,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:44,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:44,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:44,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:44,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:44,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:44,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:44,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:44,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:44,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:44,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:44,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:44,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:44,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:44,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:44,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:44,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:44,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:44,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:44,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:44,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 04:08:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:44,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:44,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:44,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:44,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:44,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:44,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:44,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:44,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:44,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:44,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:44,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:08:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:44,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:44,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:44,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:44,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:44,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:44,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:44,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:44,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:44,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:44,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:44,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:08:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:44,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:44,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:44,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:44,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:44,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:44,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:44,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:44,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:44,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:44,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:44,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:08:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:44,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:44,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:44,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:44,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:44,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:44,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:44,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:44,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:44,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:44,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:08:44,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:44,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:44,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:44,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:44,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:44,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:44,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:44,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:44,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:44,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:44,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:44,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 10 proven. 129 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-29 04:08:44,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1673792997] [2020-10-29 04:08:44,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:44,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 04:08:44,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783752573] [2020-10-29 04:08:44,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 04:08:44,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:44,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 04:08:44,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2020-10-29 04:08:44,775 INFO L87 Difference]: Start difference. First operand 92 states and 106 transitions. Second operand 18 states. [2020-10-29 04:08:46,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:46,278 INFO L93 Difference]: Finished difference Result 157 states and 189 transitions. [2020-10-29 04:08:46,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-29 04:08:46,278 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 95 [2020-10-29 04:08:46,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:46,282 INFO L225 Difference]: With dead ends: 157 [2020-10-29 04:08:46,283 INFO L226 Difference]: Without dead ends: 154 [2020-10-29 04:08:46,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=191, Invalid=1291, Unknown=0, NotChecked=0, Total=1482 [2020-10-29 04:08:46,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-29 04:08:46,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 136. [2020-10-29 04:08:46,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-29 04:08:46,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 163 transitions. [2020-10-29 04:08:46,330 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 163 transitions. Word has length 95 [2020-10-29 04:08:46,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:46,330 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 163 transitions. [2020-10-29 04:08:46,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 04:08:46,331 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 163 transitions. [2020-10-29 04:08:46,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-29 04:08:46,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:46,333 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:46,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 04:08:46,333 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:46,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:46,334 INFO L82 PathProgramCache]: Analyzing trace with hash -182042717, now seen corresponding path program 15 times [2020-10-29 04:08:46,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:46,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971451788] [2020-10-29 04:08:46,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:46,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:46,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:46,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:46,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 04:08:46,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:08:46,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-10-29 04:08:46,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:46,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:46,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 04:08:46,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:08:46,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 04:08:46,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:47,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:47,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:47,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:47,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:47,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:47,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:47,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:47,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:47,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:47,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:47,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:47,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:47,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:47,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:47,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:08:47,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:08:47,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:47,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:47,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:47,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:47,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:47,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:47,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 04:08:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:47,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:47,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:47,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:47,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:47,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:47,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:47,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:47,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:08:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:47,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:47,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:47,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:47,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:47,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:47,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:47,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:47,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:47,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:47,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:47,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:08:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:47,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:47,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:47,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:47,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:47,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:47,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:47,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:47,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:08:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:47,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:47,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:47,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:47,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:47,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:47,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:47,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:47,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:47,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:47,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:47,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:08:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:47,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:47,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:47,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:47,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:47,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:47,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:47,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:47,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:47,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:47,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:47,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:08:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:47,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:47,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:47,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:47,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:47,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:47,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:47,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:47,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:47,664 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 105 proven. 60 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-29 04:08:47,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1971451788] [2020-10-29 04:08:47,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:47,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 04:08:47,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089453204] [2020-10-29 04:08:47,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 04:08:47,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:47,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 04:08:47,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-10-29 04:08:47,666 INFO L87 Difference]: Start difference. First operand 136 states and 163 transitions. Second operand 16 states. [2020-10-29 04:08:48,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:48,824 INFO L93 Difference]: Finished difference Result 177 states and 205 transitions. [2020-10-29 04:08:48,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 04:08:48,826 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 104 [2020-10-29 04:08:48,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:48,827 INFO L225 Difference]: With dead ends: 177 [2020-10-29 04:08:48,827 INFO L226 Difference]: Without dead ends: 109 [2020-10-29 04:08:48,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2020-10-29 04:08:48,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-29 04:08:48,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 101. [2020-10-29 04:08:48,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-29 04:08:48,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2020-10-29 04:08:48,850 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 104 [2020-10-29 04:08:48,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:48,850 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2020-10-29 04:08:48,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 04:08:48,850 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2020-10-29 04:08:48,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-29 04:08:48,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:48,852 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:48,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 04:08:48,852 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:48,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:48,853 INFO L82 PathProgramCache]: Analyzing trace with hash 2146077574, now seen corresponding path program 16 times [2020-10-29 04:08:48,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:48,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863370978] [2020-10-29 04:08:48,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:48,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:49,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:50,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:50,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:50,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:50,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:50,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:50,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:50,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:50,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:50,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:50,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:50,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:51,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:51,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:51,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:52,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:53,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:53,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 04:08:53,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 32 [2020-10-29 04:08:53,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 04:08:53,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:53,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:53,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 04:08:53,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:08:53,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 04:08:53,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:54,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:08:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:54,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:54,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:54,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:08:54,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:54,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:08:54,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:54,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:54,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:54,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:54,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:54,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:54,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:08:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:54,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:54,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:54,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:54,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:54,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:08:54,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:54,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:54,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:08:54,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:54,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:08:54,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:54,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:08:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:54,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:54,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:54,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:54,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:54,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:54,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:54,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:54,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:54,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:54,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:08:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:54,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:54,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:54,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:54,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:54,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:54,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:54,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:54,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:54,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:08:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:54,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:54,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:54,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:54,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:54,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:54,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:54,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:54,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:54,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:54,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:08:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:54,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:54,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:54,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:54,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:54,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:08:54,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:54,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:54,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:54,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:08:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:54,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:54,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:08:54,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:08:54,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:08:54,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:08:54,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:08:54,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:08:54,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:08:54,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:08:54,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:08:54,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:08:54,403 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 10 proven. 190 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-10-29 04:08:54,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863370978] [2020-10-29 04:08:54,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:08:54,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:08:54,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002057913] [2020-10-29 04:08:54,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:08:54,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:08:54,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:08:54,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:08:54,412 INFO L87 Difference]: Start difference. First operand 101 states and 117 transitions. Second operand 19 states. [2020-10-29 04:08:57,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:08:57,525 INFO L93 Difference]: Finished difference Result 152 states and 180 transitions. [2020-10-29 04:08:57,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-29 04:08:57,529 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 104 [2020-10-29 04:08:57,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:08:57,530 INFO L225 Difference]: With dead ends: 152 [2020-10-29 04:08:57,531 INFO L226 Difference]: Without dead ends: 149 [2020-10-29 04:08:57,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=265, Invalid=1897, Unknown=0, NotChecked=0, Total=2162 [2020-10-29 04:08:57,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-29 04:08:57,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 111. [2020-10-29 04:08:57,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-29 04:08:57,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 129 transitions. [2020-10-29 04:08:57,556 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 129 transitions. Word has length 104 [2020-10-29 04:08:57,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:08:57,557 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 129 transitions. [2020-10-29 04:08:57,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:08:57,557 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 129 transitions. [2020-10-29 04:08:57,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-29 04:08:57,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:08:57,559 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:08:57,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 04:08:57,559 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:08:57,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:08:57,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1713154656, now seen corresponding path program 17 times [2020-10-29 04:08:57,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:08:57,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727619299] [2020-10-29 04:08:57,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:08:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:08:57,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:57,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:57,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:57,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:57,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:57,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:57,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:57,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:58,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:59,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:59,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:08:59,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-29 04:09:02,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 24 [2020-10-29 04:09:02,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 04:09:02,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 04:09:02,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:09:02,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 04:09:02,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:02,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:02,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:02,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:02,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:02,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:02,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:02,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:02,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:02,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:02,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:02,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:02,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:02,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:02,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:09:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:02,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:02,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:02,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:02,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:02,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:02,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:02,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:09:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:02,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:02,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:02,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:02,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:02,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:09:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:02,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:02,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:02,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:02,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:02,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:02,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:02,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:09:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:02,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:02,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:02,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:02,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:02,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:02,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:02,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:09:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:02,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:02,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:02,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:02,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:02,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:02,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:02,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:02,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:09:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:02,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:02,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:02,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:02,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:02,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:02,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:02,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:02,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:02,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:02,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:02,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:03,014 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 18 proven. 210 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-29 04:09:03,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727619299] [2020-10-29 04:09:03,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:03,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 04:09:03,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220141375] [2020-10-29 04:09:03,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 04:09:03,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:03,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 04:09:03,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2020-10-29 04:09:03,016 INFO L87 Difference]: Start difference. First operand 111 states and 129 transitions. Second operand 18 states. [2020-10-29 04:09:04,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:04,767 INFO L93 Difference]: Finished difference Result 156 states and 182 transitions. [2020-10-29 04:09:04,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-29 04:09:04,768 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 113 [2020-10-29 04:09:04,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:04,770 INFO L225 Difference]: With dead ends: 156 [2020-10-29 04:09:04,770 INFO L226 Difference]: Without dead ends: 139 [2020-10-29 04:09:04,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=142, Invalid=1190, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 04:09:04,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-29 04:09:04,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 116. [2020-10-29 04:09:04,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-29 04:09:04,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 135 transitions. [2020-10-29 04:09:04,797 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 135 transitions. Word has length 113 [2020-10-29 04:09:04,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:04,797 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 135 transitions. [2020-10-29 04:09:04,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 04:09:04,798 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 135 transitions. [2020-10-29 04:09:04,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-29 04:09:04,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:04,799 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:04,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-29 04:09:04,800 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:04,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:04,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1178586180, now seen corresponding path program 18 times [2020-10-29 04:09:04,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:04,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47020100] [2020-10-29 04:09:04,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:04,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:04,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:05,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:05,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:05,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:05,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:05,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:05,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:06,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:09,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:09,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-29 04:09:09,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 04:09:09,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 04:09:09,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:09,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 04:09:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:09:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 04:09:09,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:10,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:10,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:10,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:10,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:10,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:10,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:10,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:10,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:10,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:10,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:10,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:10,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:10,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:10,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:10,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:10,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:10,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:09:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:10,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:10,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:10,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:10,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:10,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:10,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:10,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:10,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:10,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:10,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:10,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:09:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:10,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:10,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:10,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:10,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:10,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:10,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:10,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:10,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:10,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:10,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:10,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:09:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:10,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:10,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:10,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:10,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:10,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:10,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:10,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:10,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:10,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:10,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:10,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:09:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:10,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:10,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:10,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:10,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:10,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:10,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:10,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:10,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:10,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:10,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:10,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:09:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:10,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:10,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:10,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:10,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:10,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:10,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:10,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:10,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:10,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:10,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:10,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:09:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:10,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:10,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:10,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:10,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:10,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:10,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:10,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:10,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:10,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:10,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:10,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:09:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:10,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:10,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:10,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:10,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:10,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:10,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:10,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:10,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:10,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:10,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:10,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:10,316 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 14 proven. 248 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-29 04:09:10,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47020100] [2020-10-29 04:09:10,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:10,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 04:09:10,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167933496] [2020-10-29 04:09:10,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 04:09:10,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:10,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 04:09:10,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2020-10-29 04:09:10,318 INFO L87 Difference]: Start difference. First operand 116 states and 135 transitions. Second operand 21 states. [2020-10-29 04:09:12,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:12,431 INFO L93 Difference]: Finished difference Result 194 states and 235 transitions. [2020-10-29 04:09:12,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-29 04:09:12,432 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 122 [2020-10-29 04:09:12,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:12,434 INFO L225 Difference]: With dead ends: 194 [2020-10-29 04:09:12,434 INFO L226 Difference]: Without dead ends: 191 [2020-10-29 04:09:12,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=216, Invalid=1764, Unknown=0, NotChecked=0, Total=1980 [2020-10-29 04:09:12,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-29 04:09:12,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 171. [2020-10-29 04:09:12,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-29 04:09:12,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 207 transitions. [2020-10-29 04:09:12,480 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 207 transitions. Word has length 122 [2020-10-29 04:09:12,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:12,481 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 207 transitions. [2020-10-29 04:09:12,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 04:09:12,481 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 207 transitions. [2020-10-29 04:09:12,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-29 04:09:12,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:12,483 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:12,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-29 04:09:12,483 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:12,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:12,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1708040350, now seen corresponding path program 19 times [2020-10-29 04:09:12,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:12,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385709793] [2020-10-29 04:09:12,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:12,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:12,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:13,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:13,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-29 04:09:13,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:09:13,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1084 [2020-10-29 04:09:13,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:13,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:13,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 04:09:13,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:09:13,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 04:09:13,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:14,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:14,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:14,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:14,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:14,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:14,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:14,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:14,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:14,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:14,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:14,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:14,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:14,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:14,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:14,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:14,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:14,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:14,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:09:14,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:09:14,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:14,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:14,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:14,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:14,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:14,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:14,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:09:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:14,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:14,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:14,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:14,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:14,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:14,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:14,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:14,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:14,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:14,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:14,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:14,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:09:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:14,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:14,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:14,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:14,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:14,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:14,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:14,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:14,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:14,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:14,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:14,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:14,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:09:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:14,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:14,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:14,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:14,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:14,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:14,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:14,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:14,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:14,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:14,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:14,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:14,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:09:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:14,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:14,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:14,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:14,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:14,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:14,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:14,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:14,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:14,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:14,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:14,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:14,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:09:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:14,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:14,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:14,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:14,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:14,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:14,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:14,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:14,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:14,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:14,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:14,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:14,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:09:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:14,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:14,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:14,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:14,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:14,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:14,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:14,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:14,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:14,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:14,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:14,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:14,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:09:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:14,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:14,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:14,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:14,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:14,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:14,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:14,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:14,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:14,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:14,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:14,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:14,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:09:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:14,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:14,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:14,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:14,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:14,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:14,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:14,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:14,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:14,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:14,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:14,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:14,162 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 144 proven. 154 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2020-10-29 04:09:14,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385709793] [2020-10-29 04:09:14,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:14,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:09:14,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021879876] [2020-10-29 04:09:14,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:09:14,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:14,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:09:14,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:09:14,164 INFO L87 Difference]: Start difference. First operand 171 states and 207 transitions. Second operand 19 states. [2020-10-29 04:09:15,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:15,811 INFO L93 Difference]: Finished difference Result 216 states and 252 transitions. [2020-10-29 04:09:15,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 04:09:15,812 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 131 [2020-10-29 04:09:15,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:15,814 INFO L225 Difference]: With dead ends: 216 [2020-10-29 04:09:15,814 INFO L226 Difference]: Without dead ends: 133 [2020-10-29 04:09:15,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=266, Invalid=1066, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 04:09:15,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-29 04:09:15,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2020-10-29 04:09:15,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-29 04:09:15,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2020-10-29 04:09:15,846 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 131 [2020-10-29 04:09:15,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:15,847 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2020-10-29 04:09:15,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:09:15,847 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2020-10-29 04:09:15,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-29 04:09:15,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:15,848 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:15,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-29 04:09:15,849 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:15,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:15,849 INFO L82 PathProgramCache]: Analyzing trace with hash 150593985, now seen corresponding path program 20 times [2020-10-29 04:09:15,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:15,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661471264] [2020-10-29 04:09:15,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:15,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:16,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:16,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:16,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:16,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:16,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:16,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:16,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:16,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:16,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:16,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:16,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:16,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:16,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:17,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:17,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:17,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:17,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:17,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:17,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:17,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:17,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:17,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:17,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:18,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:19,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:20,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:20,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-29 04:09:20,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 26 [2020-10-29 04:09:20,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 04:09:20,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:20,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:20,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 04:09:20,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:09:20,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 04:09:20,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:09:21,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:21,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:21,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:21,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:21,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:21,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:21,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:21,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:21,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:21,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:21,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:21,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:21,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:21,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:21,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:21,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:21,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:21,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:21,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:21,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:21,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:21,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:21,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:21,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:21,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:09:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:21,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:21,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:21,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:21,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:21,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:21,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:21,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:21,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:21,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:21,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:21,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:21,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:09:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:21,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:21,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:21,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:21,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:21,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:21,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:21,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:21,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:21,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:21,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:21,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:21,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:09:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:21,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:21,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:21,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:21,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:21,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:21,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:21,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:21,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:21,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:21,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:21,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:21,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:09:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:21,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:21,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:21,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:21,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:21,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:21,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:21,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:21,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:21,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:21,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:09:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:21,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:21,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:21,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:21,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:21,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:21,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:21,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:21,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:21,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:21,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:21,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:21,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:09:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:21,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:21,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:21,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:21,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:21,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:21,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:21,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:21,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:21,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:21,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:21,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:21,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:09:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:21,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:21,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:21,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:21,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:21,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:21,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:21,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:21,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:21,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:21,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:21,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:21,709 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 14 proven. 328 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-10-29 04:09:21,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661471264] [2020-10-29 04:09:21,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:21,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 04:09:21,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096043186] [2020-10-29 04:09:21,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 04:09:21,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:21,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 04:09:21,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:09:21,712 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand 22 states. [2020-10-29 04:09:26,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:26,279 INFO L93 Difference]: Finished difference Result 187 states and 223 transitions. [2020-10-29 04:09:26,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-29 04:09:26,280 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 131 [2020-10-29 04:09:26,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:26,282 INFO L225 Difference]: With dead ends: 187 [2020-10-29 04:09:26,282 INFO L226 Difference]: Without dead ends: 184 [2020-10-29 04:09:26,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=324, Invalid=2756, Unknown=0, NotChecked=0, Total=3080 [2020-10-29 04:09:26,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-29 04:09:26,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 135. [2020-10-29 04:09:26,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-29 04:09:26,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 158 transitions. [2020-10-29 04:09:26,312 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 158 transitions. Word has length 131 [2020-10-29 04:09:26,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:26,312 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 158 transitions. [2020-10-29 04:09:26,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 04:09:26,312 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 158 transitions. [2020-10-29 04:09:26,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-29 04:09:26,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:26,314 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:26,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-29 04:09:26,314 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:26,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:26,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1764022651, now seen corresponding path program 21 times [2020-10-29 04:09:26,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:26,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95803283] [2020-10-29 04:09:26,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:26,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:26,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:26,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:26,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:26,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:26,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:26,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:26,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:27,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:27,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:27,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:27,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:27,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:27,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:27,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:28,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:28,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:28,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:28,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:28,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:28,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:28,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:28,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:28,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:29,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:29,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:29,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:31,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:31,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-29 04:09:31,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 27 [2020-10-29 04:09:31,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 04:09:31,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:31,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:31,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 04:09:31,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:09:31,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-29 04:09:31,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:31,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:31,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:31,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:31,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:31,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:31,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:09:31,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:31,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:31,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:31,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:31,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:31,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:31,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:31,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:31,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:31,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:31,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:31,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:31,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:31,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:31,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:31,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:31,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:31,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:31,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:09:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:31,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:31,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:31,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:31,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:31,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:31,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:31,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:31,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:31,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:31,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:31,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:31,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:09:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:31,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:31,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:31,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:31,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:31,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:31,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:31,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:31,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:31,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:09:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:31,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:31,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:31,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:31,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:31,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:31,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:31,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:31,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:31,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:31,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:31,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:31,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:09:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:31,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:31,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:31,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:31,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:31,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:31,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:31,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:31,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:31,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:31,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:31,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:31,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:09:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:31,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:31,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:31,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:31,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:31,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:31,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:31,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:31,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:31,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:31,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:31,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:31,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:09:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:31,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:31,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:31,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:31,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:31,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:31,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:31,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:31,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:31,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:31,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:31,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:31,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:09:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:31,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:31,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:31,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:31,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:31,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:31,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:31,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:31,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:31,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:31,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:31,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:31,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:09:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:31,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:31,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:31,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:31,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:31,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:31,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:31,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:31,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:31,974 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 24 proven. 356 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2020-10-29 04:09:31,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95803283] [2020-10-29 04:09:31,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:31,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 04:09:31,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997287608] [2020-10-29 04:09:31,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 04:09:31,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:31,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 04:09:31,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=380, Unknown=0, NotChecked=0, Total=420 [2020-10-29 04:09:31,976 INFO L87 Difference]: Start difference. First operand 135 states and 158 transitions. Second operand 21 states. [2020-10-29 04:09:34,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:34,370 INFO L93 Difference]: Finished difference Result 181 states and 212 transitions. [2020-10-29 04:09:34,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-29 04:09:34,371 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 140 [2020-10-29 04:09:34,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:34,372 INFO L225 Difference]: With dead ends: 181 [2020-10-29 04:09:34,373 INFO L226 Difference]: Without dead ends: 164 [2020-10-29 04:09:34,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=170, Invalid=1722, Unknown=0, NotChecked=0, Total=1892 [2020-10-29 04:09:34,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-29 04:09:34,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 140. [2020-10-29 04:09:34,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-29 04:09:34,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 164 transitions. [2020-10-29 04:09:34,411 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 164 transitions. Word has length 140 [2020-10-29 04:09:34,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:34,412 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 164 transitions. [2020-10-29 04:09:34,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 04:09:34,412 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 164 transitions. [2020-10-29 04:09:34,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-29 04:09:34,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:34,413 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:34,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-29 04:09:34,413 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:34,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:34,414 INFO L82 PathProgramCache]: Analyzing trace with hash -324392513, now seen corresponding path program 22 times [2020-10-29 04:09:34,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:34,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035670352] [2020-10-29 04:09:34,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:34,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:34,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:34,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:34,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:34,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:34,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:34,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:34,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:35,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:35,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:35,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:35,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:35,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:39,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:39,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-29 04:09:39,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 04:09:39,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 04:09:39,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:39,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 04:09:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:09:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 04:09:39,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:40,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:40,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:40,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:40,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:40,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:40,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:40,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:40,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:40,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:40,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:40,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:40,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:40,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:40,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:40,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:40,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:40,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:40,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:40,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:40,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:09:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:40,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:40,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:40,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:40,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:40,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:40,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:40,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:40,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:09:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:40,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:40,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:40,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:40,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:40,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:40,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:40,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:40,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:40,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:40,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:40,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:09:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:40,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:40,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:40,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:40,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:40,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:40,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:40,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:40,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:40,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:40,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:09:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:40,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:40,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:40,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:40,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:40,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:40,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:40,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:40,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:40,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:40,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:40,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:09:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:40,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:40,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:40,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:40,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:40,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:40,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:40,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:40,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:40,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:40,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:09:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:40,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:40,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:40,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:40,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:40,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:40,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:40,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:40,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:09:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:40,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:40,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:40,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:40,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:40,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:40,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:40,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:40,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:40,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:40,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:40,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:09:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:40,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:40,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:40,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:40,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:40,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:40,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:40,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:40,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:40,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:40,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:40,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 04:09:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:40,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:40,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:40,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:40,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:40,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:40,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:40,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:40,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:40,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:40,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:40,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:40,140 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 18 proven. 407 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2020-10-29 04:09:40,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035670352] [2020-10-29 04:09:40,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:40,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 04:09:40,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926079809] [2020-10-29 04:09:40,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 04:09:40,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:40,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 04:09:40,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2020-10-29 04:09:40,142 INFO L87 Difference]: Start difference. First operand 140 states and 164 transitions. Second operand 24 states. [2020-10-29 04:09:43,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:43,296 INFO L93 Difference]: Finished difference Result 239 states and 291 transitions. [2020-10-29 04:09:43,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-29 04:09:43,297 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 149 [2020-10-29 04:09:43,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:43,299 INFO L225 Difference]: With dead ends: 239 [2020-10-29 04:09:43,299 INFO L226 Difference]: Without dead ends: 236 [2020-10-29 04:09:43,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=197, Invalid=2455, Unknown=0, NotChecked=0, Total=2652 [2020-10-29 04:09:43,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-29 04:09:43,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 206. [2020-10-29 04:09:43,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-29 04:09:43,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 251 transitions. [2020-10-29 04:09:43,354 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 251 transitions. Word has length 149 [2020-10-29 04:09:43,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:43,354 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 251 transitions. [2020-10-29 04:09:43,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 04:09:43,354 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 251 transitions. [2020-10-29 04:09:43,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-29 04:09:43,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:43,356 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:43,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-29 04:09:43,356 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:43,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:43,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1892735559, now seen corresponding path program 23 times [2020-10-29 04:09:43,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:43,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030240878] [2020-10-29 04:09:43,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:43,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:43,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:43,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:44,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:45,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:45,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:45,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:46,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:47,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:48,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:48,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-29 04:09:48,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 25 [2020-10-29 04:09:48,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 04:09:48,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:48,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 04:09:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:09:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-29 04:09:48,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:49,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:49,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:49,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:49,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:49,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:49,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:49,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:49,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:49,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:49,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:49,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:49,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:49,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:49,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:49,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:49,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:09:49,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:49,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:49,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:49,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:49,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:49,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:49,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:09:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:49,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:49,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:49,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:49,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:49,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:49,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:49,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:49,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:49,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:49,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:49,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:09:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:49,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:49,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:49,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:49,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:49,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:49,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:49,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:49,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:09:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:49,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:49,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:49,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:49,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:49,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:49,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:49,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:49,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:09:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:49,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:49,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:49,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:49,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:49,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:49,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:49,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:49,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:09:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:49,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:49,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:49,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:49,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:49,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:49,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:49,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:49,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:09:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:49,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:49,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:49,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:49,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:49,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:49,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:49,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:49,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:49,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:49,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:49,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 04:09:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:49,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:49,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:49,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:49,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:49,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:49,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:49,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:49,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:49,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:49,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:49,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-29 04:09:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:49,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:49,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:49,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:49,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:49,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:49,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:49,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:09:49,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 04:09:49,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:49,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:49,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-29 04:09:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:49,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:49,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:49,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:49,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:49,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:49,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:49,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:49,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:49,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:09:49,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:49,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:49,289 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 115 proven. 364 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-29 04:09:49,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030240878] [2020-10-29 04:09:49,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:49,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-29 04:09:49,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011715146] [2020-10-29 04:09:49,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-29 04:09:49,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:49,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-29 04:09:49,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=551, Unknown=0, NotChecked=0, Total=600 [2020-10-29 04:09:49,291 INFO L87 Difference]: Start difference. First operand 206 states and 251 transitions. Second operand 25 states. [2020-10-29 04:09:53,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:09:53,722 INFO L93 Difference]: Finished difference Result 307 states and 382 transitions. [2020-10-29 04:09:53,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-29 04:09:53,723 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 152 [2020-10-29 04:09:53,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:09:53,726 INFO L225 Difference]: With dead ends: 307 [2020-10-29 04:09:53,726 INFO L226 Difference]: Without dead ends: 285 [2020-10-29 04:09:53,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=322, Invalid=2984, Unknown=0, NotChecked=0, Total=3306 [2020-10-29 04:09:53,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-29 04:09:53,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 261. [2020-10-29 04:09:53,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-29 04:09:53,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 326 transitions. [2020-10-29 04:09:53,796 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 326 transitions. Word has length 152 [2020-10-29 04:09:53,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:09:53,797 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 326 transitions. [2020-10-29 04:09:53,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-29 04:09:53,797 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 326 transitions. [2020-10-29 04:09:53,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-29 04:09:53,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:09:53,799 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:09:53,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-29 04:09:53,799 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:09:53,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:09:53,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1758722053, now seen corresponding path program 24 times [2020-10-29 04:09:53,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:09:53,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179490123] [2020-10-29 04:09:53,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:09:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:53,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:53,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:54,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:55,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:55,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:55,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:55,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:55,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:58,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:58,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:58,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-29 04:09:58,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-29 04:09:58,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 04:09:58,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:58,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:58,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 04:09:58,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:09:58,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 04:09:58,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:59,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:09:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:59,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:59,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:09:59,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:59,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:09:59,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:59,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:59,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:59,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:09:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:59,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:59,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:59,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:59,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:59,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:59,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:59,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:59,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:59,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:59,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:59,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:09:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:59,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:59,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:59,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:59,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:59,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:59,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:59,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:59,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:59,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:59,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:59,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:09:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:59,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:59,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:59,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:59,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:59,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:59,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:59,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:59,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:09:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:59,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:59,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:59,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:59,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:59,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:59,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:59,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:59,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:09:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:59,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:59,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:59,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:59,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:59,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:59,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:59,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:59,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:09:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:59,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:59,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:59,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:59,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:59,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:59,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:59,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:59,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:59,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:59,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:59,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:09:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:59,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:59,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:59,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:59,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:59,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:59,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:59,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:59,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:59,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:59,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:59,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 04:09:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:59,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:59,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:59,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:59,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:09:59,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:59,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:59,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:09:59,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:09:59,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:09:59,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:59,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-29 04:09:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:59,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:59,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:59,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:59,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:09:59,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:59,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:09:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:59,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:59,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-29 04:09:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:09:59,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:09:59,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:09:59,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:09:59,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:09:59,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:09:59,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:09:59,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:09:59,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:09:59,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:09:59,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:09:59,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:09:59,745 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 107 proven. 350 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-10-29 04:09:59,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179490123] [2020-10-29 04:09:59,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:09:59,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-29 04:09:59,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60780595] [2020-10-29 04:09:59,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 04:09:59,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:09:59,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 04:09:59,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2020-10-29 04:09:59,747 INFO L87 Difference]: Start difference. First operand 261 states and 326 transitions. Second operand 23 states. [2020-10-29 04:10:03,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:10:03,966 INFO L93 Difference]: Finished difference Result 336 states and 416 transitions. [2020-10-29 04:10:03,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-29 04:10:03,969 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 152 [2020-10-29 04:10:03,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:10:03,971 INFO L225 Difference]: With dead ends: 336 [2020-10-29 04:10:03,971 INFO L226 Difference]: Without dead ends: 258 [2020-10-29 04:10:03,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=307, Invalid=2243, Unknown=0, NotChecked=0, Total=2550 [2020-10-29 04:10:03,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-10-29 04:10:04,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 218. [2020-10-29 04:10:04,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-29 04:10:04,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 265 transitions. [2020-10-29 04:10:04,015 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 265 transitions. Word has length 152 [2020-10-29 04:10:04,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:10:04,015 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 265 transitions. [2020-10-29 04:10:04,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 04:10:04,016 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 265 transitions. [2020-10-29 04:10:04,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-29 04:10:04,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:04,017 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 10, 10, 10, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:10:04,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-29 04:10:04,017 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:04,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:04,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1848676291, now seen corresponding path program 25 times [2020-10-29 04:10:04,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:04,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139505126] [2020-10-29 04:10:04,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:04,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:04,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:04,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:04,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:04,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:04,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:04,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:04,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:04,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:04,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:04,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:05,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:09,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-29 04:10:09,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 04:10:09,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 04:10:09,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:09,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 04:10:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:10:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 04:10:09,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:09,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:09,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:09,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:09,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:09,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:10:09,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:09,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:09,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:09,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:09,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:09,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:09,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:09,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:09,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:09,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:09,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:10:09,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:09,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:09,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:09,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:09,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:09,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:09,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 04:10:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:09,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:09,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:09,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:09,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:09,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:09,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:09,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:09,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:10:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:09,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:09,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:09,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:09,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:09,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:09,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:09,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:09,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 04:10:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:09,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:09,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:09,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:09,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:09,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:09,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:09,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:09,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:09,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:09,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:09,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 04:10:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:09,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:09,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:09,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:09,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:09,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:09,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:09,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:09,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:09,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:09,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:09,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 04:10:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:09,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:09,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:09,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:09,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:09,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:09,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:09,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:09,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:09,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:09,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:09,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-29 04:10:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:09,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:09,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:09,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:09,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:09,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:09,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:09,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:09,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:09,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:09,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:09,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 04:10:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:09,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:09,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:09,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:09,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:09,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:09,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:09,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:09,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:09,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:09,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:09,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-29 04:10:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:09,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:09,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:09,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:09,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:09,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:09,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:09,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:09,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-29 04:10:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:09,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:09,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:09,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:09,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 04:10:09,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:09,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:09,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:09,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:09,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:09,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:09,192 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 67 proven. 56 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2020-10-29 04:10:09,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139505126] [2020-10-29 04:10:09,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:10:09,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:10:09,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958124694] [2020-10-29 04:10:09,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:10:09,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:09,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:10:09,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:10:09,193 INFO L87 Difference]: Start difference. First operand 218 states and 265 transitions. Second operand 7 states. [2020-10-29 04:10:09,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:10:09,389 INFO L93 Difference]: Finished difference Result 412 states and 502 transitions. [2020-10-29 04:10:09,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 04:10:09,390 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 155 [2020-10-29 04:10:09,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:10:09,392 INFO L225 Difference]: With dead ends: 412 [2020-10-29 04:10:09,392 INFO L226 Difference]: Without dead ends: 211 [2020-10-29 04:10:09,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-29 04:10:09,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-10-29 04:10:09,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-10-29 04:10:09,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-29 04:10:09,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 247 transitions. [2020-10-29 04:10:09,448 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 247 transitions. Word has length 155 [2020-10-29 04:10:09,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:10:09,449 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 247 transitions. [2020-10-29 04:10:09,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:10:09,449 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 247 transitions. [2020-10-29 04:10:09,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-29 04:10:09,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:09,450 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:10:09,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-29 04:10:09,451 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:09,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:09,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1737950137, now seen corresponding path program 26 times [2020-10-29 04:10:09,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:09,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840035769] [2020-10-29 04:10:09,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:09,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:09,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:11,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-29 04:10:11,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:10:11,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1609 [2020-10-29 04:10:11,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:11,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 04:10:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:10:11,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-29 04:10:11,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:11,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:11,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:11,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:11,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:11,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:11,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:11,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:11,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:11,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:11,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:11,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:11,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:10:11,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:10:11,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:11,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:11,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:11,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:11,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:11,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:11,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:10:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:11,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:11,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:11,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:11,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:11,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:11,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:11,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:11,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:11,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:11,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:11,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:10:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:11,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:11,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:11,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:11,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:11,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:11,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:11,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:11,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:11,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:10:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:11,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:11,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:11,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:11,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:11,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:11,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:11,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:11,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:11,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:11,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:11,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:10:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:11,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:11,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:11,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:11,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:11,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:11,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:11,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:11,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:11,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:11,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:11,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:10:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:11,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:11,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:11,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:11,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:11,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:11,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:11,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:11,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:11,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:11,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:11,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:10:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:11,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:11,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:11,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:11,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:11,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:11,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:11,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:11,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:10:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:11,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:11,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:11,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:11,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:11,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:11,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:11,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:11,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:11,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:11,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:10:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:11,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:11,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:11,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:11,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:11,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:11,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:11,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:11,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:11,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 04:10:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:11,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:11,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:11,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:11,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:11,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:11,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:11,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:11,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:11,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:11,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:11,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-29 04:10:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:11,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:11,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:11,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:11,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:11,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:11,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:11,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:11,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:11,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:11,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 275 proven. 195 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2020-10-29 04:10:11,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840035769] [2020-10-29 04:10:11,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:10:11,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 04:10:11,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129333094] [2020-10-29 04:10:11,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 04:10:11,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:11,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 04:10:11,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:10:11,725 INFO L87 Difference]: Start difference. First operand 211 states and 247 transitions. Second operand 22 states. [2020-10-29 04:10:13,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:10:13,673 INFO L93 Difference]: Finished difference Result 260 states and 294 transitions. [2020-10-29 04:10:13,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 04:10:13,674 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 158 [2020-10-29 04:10:13,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:10:13,676 INFO L225 Difference]: With dead ends: 260 [2020-10-29 04:10:13,676 INFO L226 Difference]: Without dead ends: 163 [2020-10-29 04:10:13,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=369, Invalid=1437, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 04:10:13,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-29 04:10:13,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 148. [2020-10-29 04:10:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-29 04:10:13,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 166 transitions. [2020-10-29 04:10:13,716 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 166 transitions. Word has length 158 [2020-10-29 04:10:13,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:10:13,716 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 166 transitions. [2020-10-29 04:10:13,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 04:10:13,717 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 166 transitions. [2020-10-29 04:10:13,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-29 04:10:13,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:13,718 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 10, 10, 10, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:10:13,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-29 04:10:13,718 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:13,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:13,719 INFO L82 PathProgramCache]: Analyzing trace with hash 22777378, now seen corresponding path program 27 times [2020-10-29 04:10:13,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:13,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952354049] [2020-10-29 04:10:13,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:13,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:14,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:14,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:14,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:14,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:14,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:14,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:14,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:14,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:14,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:14,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:14,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:18,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:18,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-29 04:10:18,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-29 04:10:18,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 04:10:18,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:18,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:18,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-29 04:10:18,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:10:18,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-29 04:10:18,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:19,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:10:19,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:19,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:19,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:19,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:19,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:10:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:19,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:10:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:19,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:10:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:19,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:10:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:19,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:10:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:19,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:10:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:19,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:10:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:19,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 04:10:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:19,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-29 04:10:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:19,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:19,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:19,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:19,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:19,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:19,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:19,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:19,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:19,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:19,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:19,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 18 proven. 505 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-10-29 04:10:19,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [952354049] [2020-10-29 04:10:19,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:10:19,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-29 04:10:19,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841287539] [2020-10-29 04:10:19,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-29 04:10:19,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:19,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-29 04:10:19,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=552, Unknown=0, NotChecked=0, Total=600 [2020-10-29 04:10:19,619 INFO L87 Difference]: Start difference. First operand 148 states and 166 transitions. Second operand 25 states. [2020-10-29 04:10:24,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:10:24,348 INFO L93 Difference]: Finished difference Result 170 states and 191 transitions. [2020-10-29 04:10:24,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-29 04:10:24,349 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 158 [2020-10-29 04:10:24,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:10:24,351 INFO L225 Difference]: With dead ends: 170 [2020-10-29 04:10:24,351 INFO L226 Difference]: Without dead ends: 167 [2020-10-29 04:10:24,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=323, Invalid=2983, Unknown=0, NotChecked=0, Total=3306 [2020-10-29 04:10:24,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-10-29 04:10:24,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 158. [2020-10-29 04:10:24,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-29 04:10:24,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 178 transitions. [2020-10-29 04:10:24,386 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 178 transitions. Word has length 158 [2020-10-29 04:10:24,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:10:24,386 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 178 transitions. [2020-10-29 04:10:24,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-29 04:10:24,387 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 178 transitions. [2020-10-29 04:10:24,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-29 04:10:24,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:24,388 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:10:24,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-29 04:10:24,388 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:24,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:24,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1668208452, now seen corresponding path program 28 times [2020-10-29 04:10:24,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:24,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408524534] [2020-10-29 04:10:24,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:24,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:25,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:26,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:26,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:26,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:27,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:27,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:27,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:27,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:27,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:27,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:27,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:27,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:27,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:29,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:29,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-29 04:10:29,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 28 [2020-10-29 04:10:29,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-29 04:10:29,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:29,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 04:10:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:10:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-29 04:10:29,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:30,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:30,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:30,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:30,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:30,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:30,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:10:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:10:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:10:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:10:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:10:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:10:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:10:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:30,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:10:30,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 04:10:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-29 04:10:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-29 04:10:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:30,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:30,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:30,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:30,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:30,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:30,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:30,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:30,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:30,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:30,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:30,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:30,211 INFO L134 CoverageAnalysis]: Checked inductivity of 776 backedges. 30 proven. 541 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2020-10-29 04:10:30,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408524534] [2020-10-29 04:10:30,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:10:30,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 04:10:30,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584277163] [2020-10-29 04:10:30,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 04:10:30,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:30,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 04:10:30,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=506, Unknown=0, NotChecked=0, Total=552 [2020-10-29 04:10:30,213 INFO L87 Difference]: Start difference. First operand 158 states and 178 transitions. Second operand 24 states. [2020-10-29 04:10:33,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:10:33,520 INFO L93 Difference]: Finished difference Result 204 states and 231 transitions. [2020-10-29 04:10:33,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-29 04:10:33,521 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 167 [2020-10-29 04:10:33,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:10:33,523 INFO L225 Difference]: With dead ends: 204 [2020-10-29 04:10:33,523 INFO L226 Difference]: Without dead ends: 187 [2020-10-29 04:10:33,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=191, Invalid=2259, Unknown=0, NotChecked=0, Total=2450 [2020-10-29 04:10:33,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-10-29 04:10:33,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 163. [2020-10-29 04:10:33,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-29 04:10:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 184 transitions. [2020-10-29 04:10:33,567 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 184 transitions. Word has length 167 [2020-10-29 04:10:33,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:10:33,568 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 184 transitions. [2020-10-29 04:10:33,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 04:10:33,568 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 184 transitions. [2020-10-29 04:10:33,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-29 04:10:33,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:33,569 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:10:33,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-29 04:10:33,570 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:33,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:33,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1443356640, now seen corresponding path program 29 times [2020-10-29 04:10:33,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:33,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151929045] [2020-10-29 04:10:33,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:33,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:34,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:35,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:35,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:35,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:38,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:38,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-29 04:10:38,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-29 04:10:38,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-29 04:10:38,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:38,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:38,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 04:10:38,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:10:38,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 185 [2020-10-29 04:10:38,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:39,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:39,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:39,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:39,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:39,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:39,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:39,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 04:10:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:39,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 04:10:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:39,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:10:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:39,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 04:10:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:39,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 04:10:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:39,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 04:10:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:39,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:10:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:39,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-29 04:10:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:39,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:10:39,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-29 04:10:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:39,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-29 04:10:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:39,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-29 04:10:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:39,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:39,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:39,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:39,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:39,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:39,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:39,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:39,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:39,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:39,580 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 22 proven. 604 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-10-29 04:10:39,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [151929045] [2020-10-29 04:10:39,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:10:39,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-29 04:10:39,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653749800] [2020-10-29 04:10:39,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-29 04:10:39,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:39,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-29 04:10:39,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-10-29 04:10:39,582 INFO L87 Difference]: Start difference. First operand 163 states and 184 transitions. Second operand 27 states. [2020-10-29 04:10:43,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:10:43,614 INFO L93 Difference]: Finished difference Result 270 states and 318 transitions. [2020-10-29 04:10:43,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-29 04:10:43,615 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 176 [2020-10-29 04:10:43,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:10:43,616 INFO L225 Difference]: With dead ends: 270 [2020-10-29 04:10:43,616 INFO L226 Difference]: Without dead ends: 267 [2020-10-29 04:10:43,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=213, Invalid=2979, Unknown=0, NotChecked=0, Total=3192 [2020-10-29 04:10:43,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-10-29 04:10:43,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 239. [2020-10-29 04:10:43,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-10-29 04:10:43,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 282 transitions. [2020-10-29 04:10:43,680 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 282 transitions. Word has length 176 [2020-10-29 04:10:43,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:10:43,681 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 282 transitions. [2020-10-29 04:10:43,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-29 04:10:43,681 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 282 transitions. [2020-10-29 04:10:43,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-29 04:10:43,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:10:43,682 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:10:43,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-29 04:10:43,682 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:10:43,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:10:43,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1160796364, now seen corresponding path program 30 times [2020-10-29 04:10:43,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:10:43,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647649424] [2020-10-29 04:10:43,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:10:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:43,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:43,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:43,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:44,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:45,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:45,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:45,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:45,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:45,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:45,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:45,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:45,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:46,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:46,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:46,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:46,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:46,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:46,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:46,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:46,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:46,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:46,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:48,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:48,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-29 04:10:48,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 34 [2020-10-29 04:10:48,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-29 04:10:48,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:48,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:48,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-29 04:10:48,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:10:48,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-29 04:10:48,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:49,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:10:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:49,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:49,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:49,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:10:49,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:49,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:49,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:49,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:49,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:49,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:49,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:49,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:49,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:10:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:49,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:49,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:49,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:49,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:49,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:10:49,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:49,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:49,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:49,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:49,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:49,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:49,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 04:10:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:49,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:49,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:49,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:49,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:49,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:49,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:49,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:49,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:49,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:49,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:49,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:49,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 04:10:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:49,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:49,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:49,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:49,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:49,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:49,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:49,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:49,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:49,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:49,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:49,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:49,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 04:10:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:49,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:49,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:49,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:49,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:49,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:49,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:49,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:49,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:49,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:49,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:49,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:49,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:10:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:49,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:49,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:49,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:49,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:49,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:49,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:49,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:49,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:49,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 04:10:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:49,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:49,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:49,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:49,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:49,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:49,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:49,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:49,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:49,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:49,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:49,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:49,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 04:10:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:49,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:49,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:49,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:49,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:49,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:49,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:49,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:49,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:49,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:49,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:49,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:49,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-29 04:10:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:49,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:49,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:49,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:49,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:49,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:49,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:49,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:49,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:49,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:49,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:49,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:49,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-29 04:10:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:49,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:49,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:49,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:49,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:49,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:49,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:49,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:49,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:49,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:49,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:49,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:49,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-29 04:10:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:49,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:49,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:49,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:49,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:49,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:49,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:49,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:49,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:10:49,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:10:49,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:49,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:49,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-29 04:10:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:49,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:49,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:49,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:49,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:49,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:49,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:49,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:49,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:10:49,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 04:10:49,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:10:49,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:49,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-29 04:10:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:10:49,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:10:49,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:10:49,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:10:49,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:10:49,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:10:49,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:10:49,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:10:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:10:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:10:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:10:49,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:10:49,959 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 145 proven. 548 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-29 04:10:49,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647649424] [2020-10-29 04:10:49,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:10:49,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-29 04:10:49,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855977762] [2020-10-29 04:10:49,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-29 04:10:49,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:10:49,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-29 04:10:49,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=702, Unknown=0, NotChecked=0, Total=756 [2020-10-29 04:10:49,961 INFO L87 Difference]: Start difference. First operand 239 states and 282 transitions. Second operand 28 states.