/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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 -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:42:27,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:42:27,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:42:27,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:42:27,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:42:27,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:42:27,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:42:27,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:42:27,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:42:27,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:42:27,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:42:27,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:42:27,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:42:27,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:42:27,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:42:27,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:42:27,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:42:27,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:42:27,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:42:27,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:42:27,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:42:27,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:42:27,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:42:27,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:42:27,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:42:27,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:42:27,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:42:27,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:42:27,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:42:27,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:42:27,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:42:27,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:42:27,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:42:27,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:42:27,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:42:27,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:42:27,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:42:27,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:42:27,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:42:27,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:42:27,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:42:27,570 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 [2020-10-14 03:42:27,592 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:42:27,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:42:27,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:42:27,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:42:27,594 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:42:27,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:42:27,595 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:42:27,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:42:27,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:42:27,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:42:27,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:42:27,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:42:27,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:42:27,596 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:42:27,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:42:27,596 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:42:27,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:42:27,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:42:27,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:42:27,597 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:42:27,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:42:27,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:42:27,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:42:27,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:42:27,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:42:27,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:42:27,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:42:27,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:42:27,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:42:27,599 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 03:42:27,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:42:27,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:42:27,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:42:27,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:42:27,913 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:42:27,914 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label13.c [2020-10-14 03:42:27,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7960cda7/92bf08e15cba4f7f83747ce9c262020b/FLAG36d7fd9b8 [2020-10-14 03:42:28,707 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:42:28,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label13.c [2020-10-14 03:42:28,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7960cda7/92bf08e15cba4f7f83747ce9c262020b/FLAG36d7fd9b8 [2020-10-14 03:42:28,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7960cda7/92bf08e15cba4f7f83747ce9c262020b [2020-10-14 03:42:28,868 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:42:28,871 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:42:28,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:42:28,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:42:28,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:42:28,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:42:28" (1/1) ... [2020-10-14 03:42:28,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240fc400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:28, skipping insertion in model container [2020-10-14 03:42:28,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:42:28" (1/1) ... [2020-10-14 03:42:28,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:42:28,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:42:30,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:42:30,075 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:42:30,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:42:30,320 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:42:30,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:30 WrapperNode [2020-10-14 03:42:30,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:42:30,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:42:30,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:42:30,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:42:30,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:30" (1/1) ... [2020-10-14 03:42:30,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:30" (1/1) ... [2020-10-14 03:42:30,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:30" (1/1) ... [2020-10-14 03:42:30,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:30" (1/1) ... [2020-10-14 03:42:30,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:30" (1/1) ... [2020-10-14 03:42:30,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:30" (1/1) ... [2020-10-14 03:42:30,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:30" (1/1) ... [2020-10-14 03:42:30,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:42:30,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:42:30,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:42:30,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:42:30,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:30" (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 [2020-10-14 03:42:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:42:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:42:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:42:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:42:30,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:42:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:42:30,631 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:42:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:42:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:42:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:42:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:42:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:42:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:42:32,853 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:42:32,854 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:42:32,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:42:32 BoogieIcfgContainer [2020-10-14 03:42:32,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:42:32,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:42:32,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:42:32,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:42:32,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:42:28" (1/3) ... [2020-10-14 03:42:32,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24995b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:42:32, skipping insertion in model container [2020-10-14 03:42:32,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:30" (2/3) ... [2020-10-14 03:42:32,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24995b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:42:32, skipping insertion in model container [2020-10-14 03:42:32,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:42:32" (3/3) ... [2020-10-14 03:42:32,870 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label13.c [2020-10-14 03:42:32,880 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:42:32,889 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:42:32,902 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:42:32,929 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:42:32,929 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:42:32,930 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:42:32,930 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:42:32,930 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:42:32,930 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:42:32,930 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:42:32,930 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:42:32,956 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:42:32,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-14 03:42:32,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:32,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:42:32,967 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:32,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:32,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1029807235, now seen corresponding path program 1 times [2020-10-14 03:42:32,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:32,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304515620] [2020-10-14 03:42:32,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:33,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:33,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:33,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:42:33,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:33,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 428 [2020-10-14 03:42:33,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:33,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:42:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:42:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:42:33,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:42:33,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:33,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:33,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:33,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:33,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:33,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:42:33,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:33,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:33,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:33,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:33,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:42:33,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:33,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:42:33,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304515620] [2020-10-14 03:42:33,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:42:33,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:42:33,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218746106] [2020-10-14 03:42:33,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:42:33,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:33,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:42:33,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:42:33,837 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:42:37,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:37,251 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-14 03:42:37,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:42:37,254 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-10-14 03:42:37,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:37,295 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:42:37,295 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:42:37,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:42:37,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:42:37,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-14 03:42:37,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-14 03:42:37,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-14 03:42:37,428 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 62 [2020-10-14 03:42:37,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:37,429 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-14 03:42:37,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:42:37,429 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-14 03:42:37,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-14 03:42:37,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:37,436 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:42:37,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:42:37,437 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:37,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:37,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1325936016, now seen corresponding path program 1 times [2020-10-14 03:42:37,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:37,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371415935] [2020-10-14 03:42:37,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:37,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:37,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:38,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:38,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 03:42:38,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:42:38,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1031 [2020-10-14 03:42:38,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:38,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:38,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:38,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:42:38,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 03:42:38,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:42:38,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:38,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:38,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:38,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:38,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:38,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:42:38,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:38,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:38,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:38,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:38,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:38,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:38,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:38,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:38,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:38,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:42:38,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:38,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 03:42:38,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:38,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:42:38,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:38,755 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 54 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:42:38,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371415935] [2020-10-14 03:42:38,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:38,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:42:38,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460702064] [2020-10-14 03:42:38,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:42:38,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:38,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:42:38,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:42:38,761 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 5 states. [2020-10-14 03:42:42,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:42,073 INFO L93 Difference]: Finished difference Result 2063 states and 3056 transitions. [2020-10-14 03:42:42,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:42:42,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2020-10-14 03:42:42,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:42,091 INFO L225 Difference]: With dead ends: 2063 [2020-10-14 03:42:42,091 INFO L226 Difference]: Without dead ends: 1377 [2020-10-14 03:42:42,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:42:42,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2020-10-14 03:42:42,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1373. [2020-10-14 03:42:42,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1373 states. [2020-10-14 03:42:42,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1805 transitions. [2020-10-14 03:42:42,157 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1805 transitions. Word has length 138 [2020-10-14 03:42:42,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:42,158 INFO L479 AbstractCegarLoop]: Abstraction has 1373 states and 1805 transitions. [2020-10-14 03:42:42,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:42:42,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1805 transitions. [2020-10-14 03:42:42,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-14 03:42:42,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:42,166 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:42:42,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:42:42,166 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:42,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:42,167 INFO L82 PathProgramCache]: Analyzing trace with hash -975434304, now seen corresponding path program 1 times [2020-10-14 03:42:42,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:42,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771084184] [2020-10-14 03:42:42,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:42,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:42,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:42,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:43,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:43,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:44,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:46,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:46,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-14 03:42:46,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:42:46,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3957 [2020-10-14 03:42:46,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:46,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:46,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:46,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:42:46,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:42:46,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:46,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:46,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:46,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:46,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:46,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:46,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:42:46,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:46,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:46,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:46,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:46,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:46,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:46,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:46,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:46,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:46,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:42:46,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:46,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:42:46,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:46,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:42:46,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:46,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:42:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:46,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:46,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:46,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:42:46,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:46,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 03:42:46,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:46,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:46,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:46,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:46,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:42:46,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:46,658 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:42:46,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771084184] [2020-10-14 03:42:46,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:46,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:42:46,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167235900] [2020-10-14 03:42:46,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:42:46,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:46,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:42:46,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:42:46,661 INFO L87 Difference]: Start difference. First operand 1373 states and 1805 transitions. Second operand 8 states. [2020-10-14 03:42:52,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:52,728 INFO L93 Difference]: Finished difference Result 4158 states and 5816 transitions. [2020-10-14 03:42:52,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:42:52,729 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 225 [2020-10-14 03:42:52,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:52,744 INFO L225 Difference]: With dead ends: 4158 [2020-10-14 03:42:52,744 INFO L226 Difference]: Without dead ends: 2791 [2020-10-14 03:42:52,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:42:52,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2020-10-14 03:42:52,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 2776. [2020-10-14 03:42:52,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2776 states. [2020-10-14 03:42:52,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2776 states to 2776 states and 3667 transitions. [2020-10-14 03:42:52,827 INFO L78 Accepts]: Start accepts. Automaton has 2776 states and 3667 transitions. Word has length 225 [2020-10-14 03:42:52,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:52,828 INFO L479 AbstractCegarLoop]: Abstraction has 2776 states and 3667 transitions. [2020-10-14 03:42:52,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:42:52,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2776 states and 3667 transitions. [2020-10-14 03:42:52,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-14 03:42:52,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:52,833 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:42:52,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:42:52,834 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:52,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:52,834 INFO L82 PathProgramCache]: Analyzing trace with hash -102969587, now seen corresponding path program 1 times [2020-10-14 03:42:52,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:52,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331074056] [2020-10-14 03:42:52,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:52,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:52,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:53,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:53,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:54,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:42:55,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:42:55,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2234 [2020-10-14 03:42:55,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:55,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:42:55,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:42:55,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:55,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:55,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:55,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:55,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:42:55,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:55,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:55,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:55,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:55,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:55,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:42:55,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:55,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 03:42:55,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:55,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:55,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:42:55,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:42:55,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:42:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:55,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:42:55,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:55,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 03:42:55,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:55,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:55,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 03:42:55,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:55,606 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:42:55,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331074056] [2020-10-14 03:42:55,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:55,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:42:55,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731303815] [2020-10-14 03:42:55,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:42:55,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:55,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:42:55,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:42:55,611 INFO L87 Difference]: Start difference. First operand 2776 states and 3667 transitions. Second operand 7 states. [2020-10-14 03:42:59,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:59,724 INFO L93 Difference]: Finished difference Result 7621 states and 10314 transitions. [2020-10-14 03:42:59,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:42:59,725 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-10-14 03:42:59,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:59,749 INFO L225 Difference]: With dead ends: 7621 [2020-10-14 03:42:59,750 INFO L226 Difference]: Without dead ends: 4499 [2020-10-14 03:42:59,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:42:59,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4499 states. [2020-10-14 03:42:59,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4499 to 4156. [2020-10-14 03:42:59,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4156 states. [2020-10-14 03:42:59,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4156 states to 4156 states and 4654 transitions. [2020-10-14 03:42:59,891 INFO L78 Accepts]: Start accepts. Automaton has 4156 states and 4654 transitions. Word has length 236 [2020-10-14 03:42:59,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:59,892 INFO L479 AbstractCegarLoop]: Abstraction has 4156 states and 4654 transitions. [2020-10-14 03:42:59,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:42:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 4156 states and 4654 transitions. [2020-10-14 03:42:59,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-10-14 03:42:59,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:59,897 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:42:59,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:42:59,897 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:59,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:59,898 INFO L82 PathProgramCache]: Analyzing trace with hash -350823370, now seen corresponding path program 1 times [2020-10-14 03:42:59,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:59,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028980506] [2020-10-14 03:42:59,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:59,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:00,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:00,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:04,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:04,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 303 [2020-10-14 03:43:04,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:43:04,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 03:43:04,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:04,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:43:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 03:43:04,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 03:43:05,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:05,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:05,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:05,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:05,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:05,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:43:05,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:05,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:05,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:05,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:05,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:05,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:05,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:05,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:43:05,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:05,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 03:43:05,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:05,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:05,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:05,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:05,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:43:05,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:43:05,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:43:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:05,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:05,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:05,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:43:05,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:05,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-14 03:43:05,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:05,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:05,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:05,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:05,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:43:05,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:05,842 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-10-14 03:43:06,115 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:43:06,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028980506] [2020-10-14 03:43:06,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:06,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:43:06,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544163587] [2020-10-14 03:43:06,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:43:06,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:06,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:43:06,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:43:06,118 INFO L87 Difference]: Start difference. First operand 4156 states and 4654 transitions. Second operand 8 states. [2020-10-14 03:43:10,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:10,589 INFO L93 Difference]: Finished difference Result 12432 states and 14149 transitions. [2020-10-14 03:43:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 03:43:10,590 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 291 [2020-10-14 03:43:10,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:10,626 INFO L225 Difference]: With dead ends: 12432 [2020-10-14 03:43:10,627 INFO L226 Difference]: Without dead ends: 7935 [2020-10-14 03:43:10,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:43:10,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7935 states. [2020-10-14 03:43:10,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7935 to 6908. [2020-10-14 03:43:10,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6908 states. [2020-10-14 03:43:10,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6908 states to 6908 states and 7632 transitions. [2020-10-14 03:43:10,801 INFO L78 Accepts]: Start accepts. Automaton has 6908 states and 7632 transitions. Word has length 291 [2020-10-14 03:43:10,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:10,801 INFO L479 AbstractCegarLoop]: Abstraction has 6908 states and 7632 transitions. [2020-10-14 03:43:10,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:43:10,801 INFO L276 IsEmpty]: Start isEmpty. Operand 6908 states and 7632 transitions. [2020-10-14 03:43:10,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2020-10-14 03:43:10,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:10,815 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:10,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:43:10,815 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:10,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:10,816 INFO L82 PathProgramCache]: Analyzing trace with hash -865193895, now seen corresponding path program 1 times [2020-10-14 03:43:10,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:10,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290742645] [2020-10-14 03:43:10,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:10,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:11,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:11,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:15,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:15,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 570 [2020-10-14 03:43:15,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:43:15,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 03:43:15,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:15,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:15,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:15,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 257 [2020-10-14 03:43:15,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 03:43:15,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:16,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:16,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:16,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:16,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:16,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:16,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:43:16,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:16,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:16,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:16,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:16,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:16,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:16,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:16,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:16,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:16,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:43:16,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:16,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-14 03:43:16,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:16,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:16,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:16,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:16,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 03:43:16,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:16,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:43:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:16,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:17,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:17,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:43:17,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:17,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-10-14 03:43:17,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:17,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 03:43:17,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:17,824 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 354 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:43:17,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290742645] [2020-10-14 03:43:17,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:17,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:43:17,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521091220] [2020-10-14 03:43:17,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:43:17,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:17,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:43:17,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:43:17,827 INFO L87 Difference]: Start difference. First operand 6908 states and 7632 transitions. Second operand 8 states. [2020-10-14 03:43:21,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:21,065 INFO L93 Difference]: Finished difference Result 13493 states and 14953 transitions. [2020-10-14 03:43:21,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:43:21,067 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 558 [2020-10-14 03:43:21,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:21,096 INFO L225 Difference]: With dead ends: 13493 [2020-10-14 03:43:21,097 INFO L226 Difference]: Without dead ends: 6928 [2020-10-14 03:43:21,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:43:21,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6928 states. [2020-10-14 03:43:21,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6928 to 6912. [2020-10-14 03:43:21,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6912 states. [2020-10-14 03:43:21,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6912 states to 6912 states and 7635 transitions. [2020-10-14 03:43:21,298 INFO L78 Accepts]: Start accepts. Automaton has 6912 states and 7635 transitions. Word has length 558 [2020-10-14 03:43:21,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:21,302 INFO L479 AbstractCegarLoop]: Abstraction has 6912 states and 7635 transitions. [2020-10-14 03:43:21,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:43:21,303 INFO L276 IsEmpty]: Start isEmpty. Operand 6912 states and 7635 transitions. [2020-10-14 03:43:21,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-10-14 03:43:21,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:21,329 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:21,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:43:21,330 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:21,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:21,331 INFO L82 PathProgramCache]: Analyzing trace with hash 97165358, now seen corresponding path program 1 times [2020-10-14 03:43:21,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:21,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703343323] [2020-10-14 03:43:21,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:21,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:21,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:23,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:25,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:25,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 640 [2020-10-14 03:43:25,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:43:25,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3994 [2020-10-14 03:43:25,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:25,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:25,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 413 [2020-10-14 03:43:25,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 03:43:25,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:25,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:25,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:25,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:25,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:25,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:25,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:43:25,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:25,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:25,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:25,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:25,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:25,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:25,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:25,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:25,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:25,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:43:25,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:25,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:43:25,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:25,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:25,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:25,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:25,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:25,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:25,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:43:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:25,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:25,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:25,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:43:25,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:25,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-14 03:43:25,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:25,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-14 03:43:25,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:26,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 03:43:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:26,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:26,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:26,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:43:26,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:26,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-14 03:43:26,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:26,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:26,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:26,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:26,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 03:43:26,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:26,486 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 489 proven. 2 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2020-10-14 03:43:26,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703343323] [2020-10-14 03:43:26,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:26,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:26,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087691745] [2020-10-14 03:43:26,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:26,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:26,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:26,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:26,489 INFO L87 Difference]: Start difference. First operand 6912 states and 7635 transitions. Second operand 7 states. [2020-10-14 03:43:30,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:30,368 INFO L93 Difference]: Finished difference Result 15543 states and 17291 transitions. [2020-10-14 03:43:30,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:43:30,369 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 626 [2020-10-14 03:43:30,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:30,400 INFO L225 Difference]: With dead ends: 15543 [2020-10-14 03:43:30,400 INFO L226 Difference]: Without dead ends: 8633 [2020-10-14 03:43:30,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:43:30,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8633 states. [2020-10-14 03:43:30,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8633 to 8290. [2020-10-14 03:43:30,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8290 states. [2020-10-14 03:43:30,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8290 states to 8290 states and 9123 transitions. [2020-10-14 03:43:30,569 INFO L78 Accepts]: Start accepts. Automaton has 8290 states and 9123 transitions. Word has length 626 [2020-10-14 03:43:30,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:30,570 INFO L479 AbstractCegarLoop]: Abstraction has 8290 states and 9123 transitions. [2020-10-14 03:43:30,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:30,570 INFO L276 IsEmpty]: Start isEmpty. Operand 8290 states and 9123 transitions. [2020-10-14 03:43:30,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2020-10-14 03:43:30,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:30,592 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:30,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:43:30,592 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:30,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:30,593 INFO L82 PathProgramCache]: Analyzing trace with hash 579897345, now seen corresponding path program 1 times [2020-10-14 03:43:30,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:30,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643466744] [2020-10-14 03:43:30,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:30,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:31,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:32,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:32,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 643 [2020-10-14 03:43:32,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:43:32,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1754 [2020-10-14 03:43:32,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:32,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:32,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:32,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-14 03:43:32,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 03:43:32,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:32,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:32,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:32,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:32,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:32,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:32,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:43:32,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:32,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:32,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:32,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:32,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:32,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:32,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:32,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:32,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:32,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:43:32,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:32,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:43:32,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:32,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:32,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:32,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:32,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:32,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:32,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:43:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:32,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:32,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:32,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 03:43:32,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:32,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 03:43:32,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:32,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:32,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 03:43:32,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:32,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 03:43:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:32,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:33,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:33,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:43:33,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:33,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 03:43:33,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:33,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:33,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:33,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:33,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 03:43:33,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:33,236 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 484 proven. 2 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-10-14 03:43:33,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643466744] [2020-10-14 03:43:33,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:33,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:33,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226596891] [2020-10-14 03:43:33,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:33,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:33,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:33,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:33,239 INFO L87 Difference]: Start difference. First operand 8290 states and 9123 transitions. Second operand 7 states. [2020-10-14 03:43:36,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:36,339 INFO L93 Difference]: Finished difference Result 18283 states and 20285 transitions. [2020-10-14 03:43:36,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:43:36,340 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 629 [2020-10-14 03:43:36,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:36,373 INFO L225 Difference]: With dead ends: 18283 [2020-10-14 03:43:36,373 INFO L226 Difference]: Without dead ends: 10336 [2020-10-14 03:43:36,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:43:36,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10336 states. [2020-10-14 03:43:36,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10336 to 10324. [2020-10-14 03:43:36,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10324 states. [2020-10-14 03:43:36,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10324 states to 10324 states and 11264 transitions. [2020-10-14 03:43:36,609 INFO L78 Accepts]: Start accepts. Automaton has 10324 states and 11264 transitions. Word has length 629 [2020-10-14 03:43:36,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:36,611 INFO L479 AbstractCegarLoop]: Abstraction has 10324 states and 11264 transitions. [2020-10-14 03:43:36,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:36,611 INFO L276 IsEmpty]: Start isEmpty. Operand 10324 states and 11264 transitions. [2020-10-14 03:43:36,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2020-10-14 03:43:36,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:36,623 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:36,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:43:36,623 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:36,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:36,624 INFO L82 PathProgramCache]: Analyzing trace with hash 605596853, now seen corresponding path program 1 times [2020-10-14 03:43:36,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:36,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215903626] [2020-10-14 03:43:36,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:36,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:37,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:39,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:39,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 701 [2020-10-14 03:43:39,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:43:39,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2488 [2020-10-14 03:43:39,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:39,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:39,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:39,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-14 03:43:39,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 03:43:39,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:39,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:39,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:39,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:39,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:39,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:39,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:43:39,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:39,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:39,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:39,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:39,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:39,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:39,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:39,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:39,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:39,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:43:39,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:39,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:43:39,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:39,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:39,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:39,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:39,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:39,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:39,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:43:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:39,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:39,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:39,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 03:43:39,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:39,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 03:43:39,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:39,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:39,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:39,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:39,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:43:39,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:39,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:43:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:39,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:40,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:40,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:43:40,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:40,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-14 03:43:40,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:40,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:40,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:40,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:40,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 03:43:40,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:40,320 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 490 proven. 2 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-14 03:43:40,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215903626] [2020-10-14 03:43:40,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:40,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:40,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414751803] [2020-10-14 03:43:40,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:40,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:40,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:40,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:40,324 INFO L87 Difference]: Start difference. First operand 10324 states and 11264 transitions. Second operand 7 states. [2020-10-14 03:43:44,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:44,726 INFO L93 Difference]: Finished difference Result 24400 states and 26941 transitions. [2020-10-14 03:43:44,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:43:44,732 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 687 [2020-10-14 03:43:44,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:44,778 INFO L225 Difference]: With dead ends: 24400 [2020-10-14 03:43:44,778 INFO L226 Difference]: Without dead ends: 14419 [2020-10-14 03:43:44,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:43:44,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14419 states. [2020-10-14 03:43:45,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14419 to 14078. [2020-10-14 03:43:45,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14078 states. [2020-10-14 03:43:45,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14078 states to 14078 states and 15341 transitions. [2020-10-14 03:43:45,039 INFO L78 Accepts]: Start accepts. Automaton has 14078 states and 15341 transitions. Word has length 687 [2020-10-14 03:43:45,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:45,041 INFO L479 AbstractCegarLoop]: Abstraction has 14078 states and 15341 transitions. [2020-10-14 03:43:45,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:45,041 INFO L276 IsEmpty]: Start isEmpty. Operand 14078 states and 15341 transitions. [2020-10-14 03:43:45,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2020-10-14 03:43:45,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:45,055 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:45,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:43:45,055 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:45,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:45,056 INFO L82 PathProgramCache]: Analyzing trace with hash -358281127, now seen corresponding path program 1 times [2020-10-14 03:43:45,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:45,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601255866] [2020-10-14 03:43:45,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:45,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:45,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:45,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 703 [2020-10-14 03:43:45,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:45,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 802 [2020-10-14 03:43:45,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:45,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:45,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:45,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 641 [2020-10-14 03:43:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 03:43:46,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:46,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:46,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:46,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:46,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:46,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:46,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:43:46,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:46,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:46,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:46,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:46,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:46,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:46,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:46,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:46,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:46,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:43:46,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:46,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:43:46,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:46,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:46,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:46,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:46,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:46,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:46,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:43:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:46,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:46,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:46,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 03:43:46,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:46,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 03:43:46,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:46,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:46,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:46,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:46,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:46,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:46,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 03:43:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:46,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:46,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:46,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:43:46,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:46,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 03:43:46,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:46,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:46,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:46,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:46,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 03:43:46,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 168 proven. 3 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2020-10-14 03:43:46,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601255866] [2020-10-14 03:43:46,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:46,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 03:43:46,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808682494] [2020-10-14 03:43:46,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 03:43:46,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:46,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 03:43:46,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:43:46,872 INFO L87 Difference]: Start difference. First operand 14078 states and 15341 transitions. Second operand 6 states. [2020-10-14 03:43:50,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:50,188 INFO L93 Difference]: Finished difference Result 29488 states and 32198 transitions. [2020-10-14 03:43:50,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:43:50,189 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 689 [2020-10-14 03:43:50,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:50,258 INFO L225 Difference]: With dead ends: 29488 [2020-10-14 03:43:50,258 INFO L226 Difference]: Without dead ends: 16104 [2020-10-14 03:43:50,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:43:50,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16104 states. [2020-10-14 03:43:50,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16104 to 16098. [2020-10-14 03:43:50,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16098 states. [2020-10-14 03:43:50,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16098 states to 16098 states and 17297 transitions. [2020-10-14 03:43:50,547 INFO L78 Accepts]: Start accepts. Automaton has 16098 states and 17297 transitions. Word has length 689 [2020-10-14 03:43:50,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:50,549 INFO L479 AbstractCegarLoop]: Abstraction has 16098 states and 17297 transitions. [2020-10-14 03:43:50,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 03:43:50,549 INFO L276 IsEmpty]: Start isEmpty. Operand 16098 states and 17297 transitions. [2020-10-14 03:43:50,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 925 [2020-10-14 03:43:50,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:50,574 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:50,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:43:50,575 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:50,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:50,575 INFO L82 PathProgramCache]: Analyzing trace with hash 790857744, now seen corresponding path program 1 times [2020-10-14 03:43:50,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:50,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699928637] [2020-10-14 03:43:50,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:51,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:51,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:51,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:56,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:56,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 942 [2020-10-14 03:43:56,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:43:56,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 03:43:56,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:56,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:56,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:56,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-14 03:43:56,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:43:56,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:56,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:56,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:56,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:56,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:56,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:56,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:43:56,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:56,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:56,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:56,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:56,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:56,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:56,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:56,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:56,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:56,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:43:56,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:56,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 03:43:56,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:56,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:56,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:56,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:43:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:56,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:56,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:56,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:43:56,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:56,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:43:56,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:56,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:56,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:56,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:56,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:56,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:56,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 03:43:56,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:56,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:56,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:56,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:43:56,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:56,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:43:56,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:56,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:56,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:56,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:56,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:56,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:56,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 03:43:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:56,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:56,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:56,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:43:56,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:56,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:43:56,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:56,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:56,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:56,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:56,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:43:56,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:56,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 03:43:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:56,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:56,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:56,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:43:56,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:56,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-10-14 03:43:56,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:56,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:56,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:56,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:56,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:43:56,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:57,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1505 backedges. 878 proven. 2 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2020-10-14 03:43:57,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699928637] [2020-10-14 03:43:57,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:57,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:57,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429881708] [2020-10-14 03:43:57,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:57,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:57,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:57,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:57,720 INFO L87 Difference]: Start difference. First operand 16098 states and 17297 transitions. Second operand 7 states. [2020-10-14 03:44:01,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:01,146 INFO L93 Difference]: Finished difference Result 32533 states and 34961 transitions. [2020-10-14 03:44:01,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:44:01,147 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 924 [2020-10-14 03:44:01,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:01,189 INFO L225 Difference]: With dead ends: 32533 [2020-10-14 03:44:01,189 INFO L226 Difference]: Without dead ends: 17129 [2020-10-14 03:44:01,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:44:01,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17129 states. [2020-10-14 03:44:01,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17129 to 16778. [2020-10-14 03:44:01,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16778 states. [2020-10-14 03:44:01,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16778 states to 16778 states and 17991 transitions. [2020-10-14 03:44:01,447 INFO L78 Accepts]: Start accepts. Automaton has 16778 states and 17991 transitions. Word has length 924 [2020-10-14 03:44:01,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:01,449 INFO L479 AbstractCegarLoop]: Abstraction has 16778 states and 17991 transitions. [2020-10-14 03:44:01,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:01,449 INFO L276 IsEmpty]: Start isEmpty. Operand 16778 states and 17991 transitions. [2020-10-14 03:44:01,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2020-10-14 03:44:01,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:01,476 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:01,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:44:01,476 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:01,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:01,477 INFO L82 PathProgramCache]: Analyzing trace with hash -355170024, now seen corresponding path program 1 times [2020-10-14 03:44:01,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:01,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308346507] [2020-10-14 03:44:01,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:01,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:01,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:04,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:04,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 967 [2020-10-14 03:44:04,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:44:04,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2732 [2020-10-14 03:44:04,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:04,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:04,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:04,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 641 [2020-10-14 03:44:04,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:44:04,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:04,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:04,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:04,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:04,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:04,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:04,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:44:04,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:04,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:04,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:04,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:04,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:04,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:04,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:04,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:04,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:04,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:44:04,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:04,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:44:04,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:04,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:04,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:04,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:04,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:44:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:04,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:04,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:04,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 03:44:04,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:04,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:44:04,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:04,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:04,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:04,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:04,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:04,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:04,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 03:44:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:04,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:04,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:04,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:44:04,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:04,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 03:44:04,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:04,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:04,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:04,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:04,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 03:44:04,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:04,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 03:44:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:04,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:05,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:05,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:44:05,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:05,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-10-14 03:44:05,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:05,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:05,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:05,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:05,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:44:05,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:06,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1398 backedges. 848 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2020-10-14 03:44:06,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308346507] [2020-10-14 03:44:06,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:06,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:06,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556658945] [2020-10-14 03:44:06,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:06,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:06,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:06,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:06,007 INFO L87 Difference]: Start difference. First operand 16778 states and 17991 transitions. Second operand 7 states. [2020-10-14 03:44:08,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:08,764 INFO L93 Difference]: Finished difference Result 34901 states and 37615 transitions. [2020-10-14 03:44:08,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:44:08,765 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 951 [2020-10-14 03:44:08,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:08,815 INFO L225 Difference]: With dead ends: 34901 [2020-10-14 03:44:08,815 INFO L226 Difference]: Without dead ends: 18469 [2020-10-14 03:44:08,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:08,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18469 states. [2020-10-14 03:44:09,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18469 to 18457. [2020-10-14 03:44:09,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18457 states. [2020-10-14 03:44:09,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18457 states to 18457 states and 19689 transitions. [2020-10-14 03:44:09,093 INFO L78 Accepts]: Start accepts. Automaton has 18457 states and 19689 transitions. Word has length 951 [2020-10-14 03:44:09,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:09,094 INFO L479 AbstractCegarLoop]: Abstraction has 18457 states and 19689 transitions. [2020-10-14 03:44:09,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:09,094 INFO L276 IsEmpty]: Start isEmpty. Operand 18457 states and 19689 transitions. [2020-10-14 03:44:09,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1151 [2020-10-14 03:44:09,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:09,131 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:09,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:44:09,132 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:09,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:09,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1102091629, now seen corresponding path program 1 times [2020-10-14 03:44:09,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:09,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443637336] [2020-10-14 03:44:09,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:09,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:09,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:12,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:13,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:14,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:14,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1170 [2020-10-14 03:44:14,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:44:14,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 03:44:14,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:14,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-14 03:44:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-14 03:44:14,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:14,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:14,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:14,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:14,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:14,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:14,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:14,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:14,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:14,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:14,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:14,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:14,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:14,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:14,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:14,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:14,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:44:14,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:14,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:44:14,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:14,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:14,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:14,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:44:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:14,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:14,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:14,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:44:14,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:14,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:44:14,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:14,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:14,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:14,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:14,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:14,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:14,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 03:44:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:14,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:14,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:14,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:44:14,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:14,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:44:14,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:14,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:14,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:14,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:14,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:14,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:14,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 03:44:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:14,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:14,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:14,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:44:14,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:14,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 03:44:14,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:14,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:14,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:14,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:14,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:44:14,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:14,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-14 03:44:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:15,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:15,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:15,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-14 03:44:15,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:15,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 03:44:15,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:15,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:15,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 03:44:15,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:15,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2020-10-14 03:44:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:15,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:15,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:15,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:44:15,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:15,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:44:15,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:15,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:44:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:15,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:17,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2640 backedges. 1056 proven. 141 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2020-10-14 03:44:17,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443637336] [2020-10-14 03:44:17,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:17,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:44:17,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278847901] [2020-10-14 03:44:17,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:44:17,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:17,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:44:17,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:44:17,020 INFO L87 Difference]: Start difference. First operand 18457 states and 19689 transitions. Second operand 8 states. [2020-10-14 03:44:22,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:22,034 INFO L93 Difference]: Finished difference Result 37938 states and 40487 transitions. [2020-10-14 03:44:22,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 03:44:22,035 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1150 [2020-10-14 03:44:22,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:22,086 INFO L225 Difference]: With dead ends: 37938 [2020-10-14 03:44:22,086 INFO L226 Difference]: Without dead ends: 20175 [2020-10-14 03:44:22,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-14 03:44:22,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20175 states. [2020-10-14 03:44:22,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20175 to 19481. [2020-10-14 03:44:22,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19481 states. [2020-10-14 03:44:22,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19481 states to 19481 states and 20758 transitions. [2020-10-14 03:44:22,398 INFO L78 Accepts]: Start accepts. Automaton has 19481 states and 20758 transitions. Word has length 1150 [2020-10-14 03:44:22,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:22,400 INFO L479 AbstractCegarLoop]: Abstraction has 19481 states and 20758 transitions. [2020-10-14 03:44:22,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:44:22,400 INFO L276 IsEmpty]: Start isEmpty. Operand 19481 states and 20758 transitions. [2020-10-14 03:44:22,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1186 [2020-10-14 03:44:22,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:22,436 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:22,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:44:22,437 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:22,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:22,438 INFO L82 PathProgramCache]: Analyzing trace with hash 203962074, now seen corresponding path program 1 times [2020-10-14 03:44:22,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:22,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071294635] [2020-10-14 03:44:22,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:23,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:24,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:26,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:27,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:27,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1205 [2020-10-14 03:44:27,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:44:27,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-14 03:44:27,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:27,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:27,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 735 [2020-10-14 03:44:27,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:44:27,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:27,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:27,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:27,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:27,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:27,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:27,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:27,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:27,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:27,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:27,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:27,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:27,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:27,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:27,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:27,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:27,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:44:27,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:27,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:44:27,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:27,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:27,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:27,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:27,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:27,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:28,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:44:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:28,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:28,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:28,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:44:28,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:28,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:44:28,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:28,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:28,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:28,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:28,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:28,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:28,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 03:44:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:28,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:28,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:28,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:44:28,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:28,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:44:28,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:28,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:28,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:28,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:28,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:28,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:28,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2020-10-14 03:44:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:28,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:28,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:28,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:44:28,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:28,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:44:28,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:28,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:28,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:28,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:28,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:44:28,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:28,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2020-10-14 03:44:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:28,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:28,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:28,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:44:28,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:28,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-14 03:44:28,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:28,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:44:28,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:28,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 989 [2020-10-14 03:44:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:28,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:28,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:28,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:44:28,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:44:28,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:28,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:44:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:30,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2456 backedges. 1068 proven. 141 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked. [2020-10-14 03:44:30,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071294635] [2020-10-14 03:44:30,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:30,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:44:30,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906427409] [2020-10-14 03:44:30,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:44:30,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:30,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:44:30,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:44:30,224 INFO L87 Difference]: Start difference. First operand 19481 states and 20758 transitions. Second operand 8 states. [2020-10-14 03:44:33,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:33,922 INFO L93 Difference]: Finished difference Result 40642 states and 43452 transitions. [2020-10-14 03:44:33,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:33,923 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1185 [2020-10-14 03:44:33,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:33,968 INFO L225 Difference]: With dead ends: 40642 [2020-10-14 03:44:33,969 INFO L226 Difference]: Without dead ends: 21855 [2020-10-14 03:44:33,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-14 03:44:34,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21855 states. [2020-10-14 03:44:34,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21855 to 21849. [2020-10-14 03:44:34,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21849 states. [2020-10-14 03:44:34,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21849 states to 21849 states and 23239 transitions. [2020-10-14 03:44:34,281 INFO L78 Accepts]: Start accepts. Automaton has 21849 states and 23239 transitions. Word has length 1185 [2020-10-14 03:44:34,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:34,282 INFO L479 AbstractCegarLoop]: Abstraction has 21849 states and 23239 transitions. [2020-10-14 03:44:34,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:44:34,283 INFO L276 IsEmpty]: Start isEmpty. Operand 21849 states and 23239 transitions. [2020-10-14 03:44:34,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1281 [2020-10-14 03:44:34,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:34,318 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:34,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:44:34,319 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:34,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:34,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1514456205, now seen corresponding path program 1 times [2020-10-14 03:44:34,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:34,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065498045] [2020-10-14 03:44:34,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:34,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:35,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:36,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:39,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:39,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1302 [2020-10-14 03:44:39,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:44:39,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5190 [2020-10-14 03:44:39,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:39,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:39,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:39,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 792 [2020-10-14 03:44:39,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:44:39,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:39,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:39,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:39,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:39,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:39,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:39,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:39,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:39,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:39,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:39,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:39,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:39,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:39,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:39,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:39,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:39,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:44:39,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:39,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:44:39,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:39,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:39,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:39,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:39,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:39,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:40,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:44:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:40,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:40,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:40,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 03:44:40,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:40,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:44:40,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:40,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:40,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:40,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 03:44:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:40,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:40,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:40,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 03:44:40,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:40,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:44:40,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:40,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:40,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:40,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:40,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:40,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:40,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2020-10-14 03:44:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:40,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:40,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:40,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:44:40,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:40,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:44:40,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:40,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:40,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:40,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:40,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-14 03:44:40,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:40,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 03:44:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:40,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:40,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:40,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:44:40,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:40,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 03:44:40,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:40,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:40,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:44:40,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:40,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 899 [2020-10-14 03:44:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:40,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:40,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:40,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:44:40,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:40,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 03:44:40,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:40,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:40,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:40,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:44:40,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:40,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:40,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:44:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:40,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:40,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:40,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:44:40,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:40,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:44:40,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:40,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:40,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:41,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2673 backedges. 809 proven. 114 refuted. 0 times theorem prover too weak. 1750 trivial. 0 not checked. [2020-10-14 03:44:41,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065498045] [2020-10-14 03:44:41,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:41,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:44:41,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147538112] [2020-10-14 03:44:41,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:44:41,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:41,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:44:41,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:44:41,368 INFO L87 Difference]: Start difference. First operand 21849 states and 23239 transitions. Second operand 8 states. [2020-10-14 03:44:44,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:44,361 INFO L93 Difference]: Finished difference Result 43019 states and 45788 transitions. [2020-10-14 03:44:44,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:44:44,362 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1280 [2020-10-14 03:44:44,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:44,403 INFO L225 Difference]: With dead ends: 43019 [2020-10-14 03:44:44,403 INFO L226 Difference]: Without dead ends: 21864 [2020-10-14 03:44:44,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:44:44,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21864 states. [2020-10-14 03:44:44,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21864 to 21854. [2020-10-14 03:44:44,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21854 states. [2020-10-14 03:44:44,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21854 states to 21854 states and 23201 transitions. [2020-10-14 03:44:44,715 INFO L78 Accepts]: Start accepts. Automaton has 21854 states and 23201 transitions. Word has length 1280 [2020-10-14 03:44:44,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:44,716 INFO L479 AbstractCegarLoop]: Abstraction has 21854 states and 23201 transitions. [2020-10-14 03:44:44,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:44:44,716 INFO L276 IsEmpty]: Start isEmpty. Operand 21854 states and 23201 transitions. [2020-10-14 03:44:44,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1333 [2020-10-14 03:44:44,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:44,755 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:44,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:44:44,756 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:44,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:44,756 INFO L82 PathProgramCache]: Analyzing trace with hash 793528293, now seen corresponding path program 1 times [2020-10-14 03:44:44,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:44,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785600303] [2020-10-14 03:44:44,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:45,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:46,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:48,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:48,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1354 [2020-10-14 03:44:48,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:44:48,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3281 [2020-10-14 03:44:48,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:48,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1289 [2020-10-14 03:44:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:44:48,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:48,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:48,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:48,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:48,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:48,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:48,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:48,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:48,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:48,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:48,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:48,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:48,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:48,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:44:48,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:48,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:44:48,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:48,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:48,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:48,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:48,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:44:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:48,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:48,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:48,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 03:44:48,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:48,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:44:48,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:48,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:48,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:48,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:48,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:48,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:48,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 03:44:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:48,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:48,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:48,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:44:48,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:48,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:44:48,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:48,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:48,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:48,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:48,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:48,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:48,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 03:44:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:48,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:48,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:48,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:44:48,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:48,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 03:44:48,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:48,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:48,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:48,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:48,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:48,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:48,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 836 [2020-10-14 03:44:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:48,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:48,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:48,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:44:48,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:48,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 03:44:48,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:48,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:48,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:48,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:48,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:48,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:48,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2020-10-14 03:44:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:48,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:49,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:49,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:44:49,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:49,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-14 03:44:49,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:49,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:49,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:49,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:49,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 321 [2020-10-14 03:44:49,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:49,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:44:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:49,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:49,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:49,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:44:49,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:49,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:44:49,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:49,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:49,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:49,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 03:44:49,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2849 backedges. 339 proven. 6 refuted. 0 times theorem prover too weak. 2504 trivial. 0 not checked. [2020-10-14 03:44:50,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785600303] [2020-10-14 03:44:50,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:50,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:44:50,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623405025] [2020-10-14 03:44:50,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:44:50,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:50,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:44:50,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:44:50,459 INFO L87 Difference]: Start difference. First operand 21854 states and 23201 transitions. Second operand 5 states. [2020-10-14 03:44:52,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:52,956 INFO L93 Difference]: Finished difference Result 43016 states and 45697 transitions. [2020-10-14 03:44:52,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:44:52,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1332 [2020-10-14 03:44:52,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:53,001 INFO L225 Difference]: With dead ends: 43016 [2020-10-14 03:44:53,001 INFO L226 Difference]: Without dead ends: 21856 [2020-10-14 03:44:53,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:44:53,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21856 states. [2020-10-14 03:44:53,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21856 to 21178. [2020-10-14 03:44:53,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21178 states. [2020-10-14 03:44:53,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21178 states to 21178 states and 22169 transitions. [2020-10-14 03:44:53,314 INFO L78 Accepts]: Start accepts. Automaton has 21178 states and 22169 transitions. Word has length 1332 [2020-10-14 03:44:53,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:53,316 INFO L479 AbstractCegarLoop]: Abstraction has 21178 states and 22169 transitions. [2020-10-14 03:44:53,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:44:53,316 INFO L276 IsEmpty]: Start isEmpty. Operand 21178 states and 22169 transitions. [2020-10-14 03:44:53,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1787 [2020-10-14 03:44:53,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:53,364 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:53,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:44:53,364 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:53,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:53,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1049540467, now seen corresponding path program 1 times [2020-10-14 03:44:53,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:53,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830296390] [2020-10-14 03:44:53,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:53,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:53,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:54,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:54,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:58,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:58,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1810 [2020-10-14 03:44:58,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:44:58,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5079 [2020-10-14 03:44:58,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:58,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 942 [2020-10-14 03:44:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:44:58,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:58,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:58,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:58,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:58,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:58,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:58,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:58,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:58,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:58,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:58,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:58,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:58,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:58,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:58,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:58,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:58,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:44:58,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:58,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:44:58,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:58,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:58,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:58,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:58,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:58,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:58,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:44:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:58,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:58,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:58,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:44:58,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:58,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:44:58,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:58,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:58,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:58,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:58,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:58,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:59,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 03:44:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:59,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:59,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:59,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:44:59,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:59,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:44:59,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:59,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:59,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:59,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:59,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:59,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:59,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2020-10-14 03:44:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:59,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:59,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:59,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:44:59,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:59,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 03:44:59,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:59,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:59,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:59,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:59,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:44:59,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:59,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 934 [2020-10-14 03:44:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:59,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:59,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:59,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:44:59,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:59,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-10-14 03:44:59,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:59,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:59,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:59,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:59,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:44:59,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:00,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1207 [2020-10-14 03:45:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:00,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:00,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:00,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:45:00,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:00,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:45:00,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:00,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:00,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:00,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:45:00,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:00,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:00,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1319 [2020-10-14 03:45:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:00,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:00,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:00,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:45:00,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:00,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 03:45:00,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:00,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:00,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:00,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:45:00,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:00,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:00,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1534 [2020-10-14 03:45:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:00,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:00,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:00,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 03:45:00,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:00,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:45:00,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:00,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 03:45:00,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:00,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:02,480 INFO L134 CoverageAnalysis]: Checked inductivity of 5534 backedges. 1414 proven. 518 refuted. 0 times theorem prover too weak. 3602 trivial. 0 not checked. [2020-10-14 03:45:02,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830296390] [2020-10-14 03:45:02,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:02,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:02,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620512366] [2020-10-14 03:45:02,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:02,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:02,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:02,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:02,484 INFO L87 Difference]: Start difference. First operand 21178 states and 22169 transitions. Second operand 7 states. [2020-10-14 03:45:05,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:05,826 INFO L93 Difference]: Finished difference Result 41674 states and 43646 transitions. [2020-10-14 03:45:05,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:45:05,833 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1786 [2020-10-14 03:45:05,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:05,860 INFO L225 Difference]: With dead ends: 41674 [2020-10-14 03:45:05,860 INFO L226 Difference]: Without dead ends: 21190 [2020-10-14 03:45:05,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:45:05,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21190 states. [2020-10-14 03:45:06,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21190 to 21178. [2020-10-14 03:45:06,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21178 states. [2020-10-14 03:45:06,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21178 states to 21178 states and 22161 transitions. [2020-10-14 03:45:06,109 INFO L78 Accepts]: Start accepts. Automaton has 21178 states and 22161 transitions. Word has length 1786 [2020-10-14 03:45:06,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:06,110 INFO L479 AbstractCegarLoop]: Abstraction has 21178 states and 22161 transitions. [2020-10-14 03:45:06,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:06,110 INFO L276 IsEmpty]: Start isEmpty. Operand 21178 states and 22161 transitions. [2020-10-14 03:45:06,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1882 [2020-10-14 03:45:06,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:06,272 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:06,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:45:06,273 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:06,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:06,274 INFO L82 PathProgramCache]: Analyzing trace with hash 784129315, now seen corresponding path program 1 times [2020-10-14 03:45:06,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:06,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175287681] [2020-10-14 03:45:06,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:06,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:07,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:07,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:10,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:11,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:11,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:11,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1907 [2020-10-14 03:45:11,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:45:11,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5116 [2020-10-14 03:45:11,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:11,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1039 [2020-10-14 03:45:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:45:11,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:11,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:11,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:11,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:11,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:11,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:11,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:45:11,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:11,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:11,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:11,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:11,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:11,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:11,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:11,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:11,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:11,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:45:11,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:11,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:45:11,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:11,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:11,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:11,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:11,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:11,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:11,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:45:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:11,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:11,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:11,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 03:45:11,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:11,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:45:11,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:11,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:11,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:12,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 03:45:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:12,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:12,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:12,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:45:12,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:12,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:45:12,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:12,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:12,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:12,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:12,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:12,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:12,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 03:45:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:12,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:12,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:12,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 03:45:12,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:12,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:45:12,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:12,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:12,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:12,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:12,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:12,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:12,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 767 [2020-10-14 03:45:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:12,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:12,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:12,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:45:12,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:12,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 03:45:12,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:12,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:12,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 03:45:12,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:12,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2020-10-14 03:45:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:12,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:12,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:12,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:45:12,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:12,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-14 03:45:12,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:12,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:12,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:12,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:45:12,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:12,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1302 [2020-10-14 03:45:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:12,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:13,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:13,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:45:13,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:13,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:45:13,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:13,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:13,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:13,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:45:13,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:13,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:13,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1414 [2020-10-14 03:45:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:13,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:13,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:13,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:45:13,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:13,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 03:45:13,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:13,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:45:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:13,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:13,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1629 [2020-10-14 03:45:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:13,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:13,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:13,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 03:45:13,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:13,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 03:45:13,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:13,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 03:45:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:13,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:15,329 INFO L134 CoverageAnalysis]: Checked inductivity of 6558 backedges. 1581 proven. 518 refuted. 0 times theorem prover too weak. 4459 trivial. 0 not checked. [2020-10-14 03:45:15,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175287681] [2020-10-14 03:45:15,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:15,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:15,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8058648] [2020-10-14 03:45:15,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:15,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:15,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:15,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:15,333 INFO L87 Difference]: Start difference. First operand 21178 states and 22161 transitions. Second operand 7 states. [2020-10-14 03:45:18,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:18,672 INFO L93 Difference]: Finished difference Result 41676 states and 43632 transitions. [2020-10-14 03:45:18,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:45:18,673 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1881 [2020-10-14 03:45:18,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:18,700 INFO L225 Difference]: With dead ends: 41676 [2020-10-14 03:45:18,700 INFO L226 Difference]: Without dead ends: 21192 [2020-10-14 03:45:18,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:45:18,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21192 states. [2020-10-14 03:45:18,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21192 to 21178. [2020-10-14 03:45:18,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21178 states. [2020-10-14 03:45:18,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21178 states to 21178 states and 22139 transitions. [2020-10-14 03:45:18,918 INFO L78 Accepts]: Start accepts. Automaton has 21178 states and 22139 transitions. Word has length 1881 [2020-10-14 03:45:18,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:18,919 INFO L479 AbstractCegarLoop]: Abstraction has 21178 states and 22139 transitions. [2020-10-14 03:45:18,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:18,920 INFO L276 IsEmpty]: Start isEmpty. Operand 21178 states and 22139 transitions. [2020-10-14 03:45:18,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1970 [2020-10-14 03:45:18,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:18,958 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:18,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:45:18,959 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:18,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:18,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1928412913, now seen corresponding path program 1 times [2020-10-14 03:45:18,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:18,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942170435] [2020-10-14 03:45:18,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:19,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:19,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:20,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:24,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:24,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1997 [2020-10-14 03:45:24,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:45:24,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5084 [2020-10-14 03:45:24,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:24,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:24,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:24,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 961 [2020-10-14 03:45:24,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:45:24,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:24,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:24,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:24,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:24,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:24,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:24,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:45:24,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:24,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:24,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:24,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:24,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:24,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:24,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:24,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:45:24,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:24,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:45:24,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:24,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:24,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:24,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:24,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:24,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:24,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:45:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:24,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:24,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:24,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 03:45:24,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:24,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:45:24,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:24,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:24,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:24,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:24,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:24,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:24,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 03:45:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:24,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:24,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:24,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:45:24,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:24,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:45:24,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:24,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:24,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:24,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:24,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:24,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:24,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 03:45:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:24,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:24,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:24,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:45:24,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:24,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 03:45:24,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:24,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:24,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:24,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:24,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:24,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:24,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 836 [2020-10-14 03:45:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:24,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:25,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:25,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:45:25,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:25,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:45:25,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:25,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:45:25,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:25,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2020-10-14 03:45:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:25,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:25,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:25,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:45:25,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:25,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-14 03:45:25,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:25,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:25,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:25,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:25,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:45:25,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:25,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1201 [2020-10-14 03:45:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:25,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:25,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:25,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:45:25,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:25,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 03:45:25,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:25,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:25,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:25,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:45:25,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:25,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:25,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:45:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:25,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:25,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:25,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:45:25,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:25,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 03:45:25,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:25,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:25,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:25,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:25,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:25,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:25,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1502 [2020-10-14 03:45:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:25,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:25,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:25,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:45:25,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:25,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 03:45:25,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:25,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:25,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:25,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:45:25,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:25,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:25,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1717 [2020-10-14 03:45:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:25,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:25,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:25,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 03:45:25,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:25,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:45:25,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:25,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:25,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:25,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 03:45:25,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:25,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:28,006 INFO L134 CoverageAnalysis]: Checked inductivity of 7012 backedges. 1503 proven. 656 refuted. 0 times theorem prover too weak. 4853 trivial. 0 not checked. [2020-10-14 03:45:28,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942170435] [2020-10-14 03:45:28,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:28,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:28,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470083383] [2020-10-14 03:45:28,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:28,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:28,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:28,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:28,009 INFO L87 Difference]: Start difference. First operand 21178 states and 22139 transitions. Second operand 7 states. [2020-10-14 03:45:31,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:31,582 INFO L93 Difference]: Finished difference Result 42683 states and 44608 transitions. [2020-10-14 03:45:31,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:45:31,583 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1969 [2020-10-14 03:45:31,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:31,619 INFO L225 Difference]: With dead ends: 42683 [2020-10-14 03:45:31,619 INFO L226 Difference]: Without dead ends: 22199 [2020-10-14 03:45:31,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:45:31,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22199 states. [2020-10-14 03:45:31,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22199 to 21854. [2020-10-14 03:45:31,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21854 states. [2020-10-14 03:45:31,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21854 states to 21854 states and 22820 transitions. [2020-10-14 03:45:31,923 INFO L78 Accepts]: Start accepts. Automaton has 21854 states and 22820 transitions. Word has length 1969 [2020-10-14 03:45:31,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:31,925 INFO L479 AbstractCegarLoop]: Abstraction has 21854 states and 22820 transitions. [2020-10-14 03:45:31,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:31,926 INFO L276 IsEmpty]: Start isEmpty. Operand 21854 states and 22820 transitions. [2020-10-14 03:45:31,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1974 [2020-10-14 03:45:31,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:31,986 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:31,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:45:31,986 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:31,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:31,987 INFO L82 PathProgramCache]: Analyzing trace with hash -44810413, now seen corresponding path program 1 times [2020-10-14 03:45:31,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:31,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105050332] [2020-10-14 03:45:31,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:32,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:33,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:33,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:33,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:35,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:37,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:37,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:37,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2001 [2020-10-14 03:45:37,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:45:37,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 03:45:37,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:37,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:37,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:37,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 413 [2020-10-14 03:45:37,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 03:45:37,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:37,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:37,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:37,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:37,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:37,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:37,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:45:37,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:37,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:37,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:37,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:37,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:37,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:37,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:45:37,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:37,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:45:37,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:37,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:37,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:37,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:37,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:37,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:37,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:45:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:37,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:37,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:37,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:45:37,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:37,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:45:37,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:37,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:37,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:37,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:37,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-14 03:45:37,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:37,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 03:45:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:37,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:37,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:37,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:45:37,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:37,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 03:45:37,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:37,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:37,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 03:45:37,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2020-10-14 03:45:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:45:38,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 03:45:38,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-14 03:45:38,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:38,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 934 [2020-10-14 03:45:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:45:38,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 03:45:38,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 03:45:38,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:38,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1017 [2020-10-14 03:45:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:45:38,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:45:38,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:45:38,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:38,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1205 [2020-10-14 03:45:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:45:38,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 03:45:38,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:45:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:38,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:38,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:45:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:45:38,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 03:45:38,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:38,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:38,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:38,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1506 [2020-10-14 03:45:38,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:38,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:38,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:38,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:45:38,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:38,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 03:45:38,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:38,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:38,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:38,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:45:39,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:39,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:39,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1721 [2020-10-14 03:45:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:39,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:39,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:39,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 03:45:39,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:39,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 03:45:39,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:39,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:39,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:39,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 03:45:39,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:39,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:42,553 INFO L134 CoverageAnalysis]: Checked inductivity of 6762 backedges. 943 proven. 1166 refuted. 0 times theorem prover too weak. 4653 trivial. 0 not checked. [2020-10-14 03:45:42,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2105050332] [2020-10-14 03:45:42,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:42,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:42,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903412129] [2020-10-14 03:45:42,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:42,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:42,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:42,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:42,556 INFO L87 Difference]: Start difference. First operand 21854 states and 22820 transitions. Second operand 7 states. [2020-10-14 03:45:46,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:46,100 INFO L93 Difference]: Finished difference Result 44041 states and 46020 transitions. [2020-10-14 03:45:46,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:45:46,101 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1973 [2020-10-14 03:45:46,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:46,133 INFO L225 Difference]: With dead ends: 44041 [2020-10-14 03:45:46,134 INFO L226 Difference]: Without dead ends: 22881 [2020-10-14 03:45:46,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:45:46,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22881 states. [2020-10-14 03:45:46,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22881 to 22532. [2020-10-14 03:45:46,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22532 states. [2020-10-14 03:45:46,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22532 states to 22532 states and 23507 transitions. [2020-10-14 03:45:46,352 INFO L78 Accepts]: Start accepts. Automaton has 22532 states and 23507 transitions. Word has length 1973 [2020-10-14 03:45:46,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:46,353 INFO L479 AbstractCegarLoop]: Abstraction has 22532 states and 23507 transitions. [2020-10-14 03:45:46,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:46,353 INFO L276 IsEmpty]: Start isEmpty. Operand 22532 states and 23507 transitions. [2020-10-14 03:45:46,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2024 [2020-10-14 03:45:46,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:46,402 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:46,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 03:45:46,403 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:46,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:46,403 INFO L82 PathProgramCache]: Analyzing trace with hash 293380498, now seen corresponding path program 1 times [2020-10-14 03:45:46,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:46,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81818219] [2020-10-14 03:45:46,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:46,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:47,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:47,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:47,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:50,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:51,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:51,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2051 [2020-10-14 03:45:51,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:45:51,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5120 [2020-10-14 03:45:51,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:51,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1183 [2020-10-14 03:45:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:45:51,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:52,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:52,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:52,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:52,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:52,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:52,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:45:52,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:52,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:52,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:52,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:52,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:52,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:52,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:52,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:52,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:52,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:45:52,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:52,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:45:52,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:52,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:52,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:52,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:52,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:52,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:52,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:45:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:52,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:52,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:52,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 03:45:52,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:52,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:45:52,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:52,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:52,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:52,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:52,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:52,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:52,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 03:45:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:52,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:52,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:52,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:45:52,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:52,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:45:52,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:52,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:52,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:52,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:52,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:52,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:52,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 03:45:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:52,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:52,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:52,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 03:45:52,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:52,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 03:45:52,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:52,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:52,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:52,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:52,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:52,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:52,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 767 [2020-10-14 03:45:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:52,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:52,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:52,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:45:52,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:52,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 03:45:52,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:52,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:52,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:52,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2020-10-14 03:45:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:52,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:52,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:52,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:45:52,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:52,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:45:52,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:52,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:52,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:52,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:52,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 03:45:52,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:52,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1171 [2020-10-14 03:45:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:52,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:52,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:52,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:45:52,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:52,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-14 03:45:52,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:52,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:52,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:52,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:52,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:45:52,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:53,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1444 [2020-10-14 03:45:53,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:53,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:53,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:53,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:45:53,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:53,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:45:53,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:53,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:53,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:53,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:45:53,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:53,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:53,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1556 [2020-10-14 03:45:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:53,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:53,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:53,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:45:53,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:53,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 03:45:53,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:53,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:53,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:53,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:45:53,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:53,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:53,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1771 [2020-10-14 03:45:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:53,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:53,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:53,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 03:45:53,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:53,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 03:45:53,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:53,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:53,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:53,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 03:45:53,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:53,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:56,072 INFO L134 CoverageAnalysis]: Checked inductivity of 7851 backedges. 1792 proven. 518 refuted. 0 times theorem prover too weak. 5541 trivial. 0 not checked. [2020-10-14 03:45:56,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81818219] [2020-10-14 03:45:56,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:56,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:56,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239917695] [2020-10-14 03:45:56,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:56,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:56,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:56,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:56,075 INFO L87 Difference]: Start difference. First operand 22532 states and 23507 transitions. Second operand 7 states.