/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/Problem18_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:13:47,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:13:47,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:13:47,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:13:47,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:13:47,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:13:47,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:13:47,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:13:47,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:13:47,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:13:47,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:13:47,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:13:47,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:13:47,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:13:47,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:13:47,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:13:47,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:13:47,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:13:47,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:13:47,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:13:47,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:13:47,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:13:47,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:13:47,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:13:47,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:13:47,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:13:47,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:13:47,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:13:47,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:13:47,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:13:47,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:13:47,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:13:47,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:13:47,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:13:47,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:13:47,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:13:47,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:13:47,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:13:47,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:13:47,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:13:47,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:13:47,572 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 04:13:47,595 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:13:47,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:13:47,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:13:47,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:13:47,596 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:13:47,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:13:47,597 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:13:47,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:13:47,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:13:47,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:13:47,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:13:47,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:13:47,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:13:47,598 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:13:47,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:13:47,599 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:13:47,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:13:47,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:13:47,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:13:47,600 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:13:47,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:13:47,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:13:47,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:13:47,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:13:47,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:13:47,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:13:47,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:13:47,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:13:47,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:13:47,602 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 04:13:47,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:13:47,920 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:13:47,924 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:13:47,926 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:13:47,926 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:13:47,927 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label14.c [2020-10-14 04:13:47,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8e942020/47f56a380fc74a9eadf18137df890f1a/FLAG50e6e8353 [2020-10-14 04:13:48,737 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:13:48,738 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label14.c [2020-10-14 04:13:48,766 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8e942020/47f56a380fc74a9eadf18137df890f1a/FLAG50e6e8353 [2020-10-14 04:13:48,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8e942020/47f56a380fc74a9eadf18137df890f1a [2020-10-14 04:13:48,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:13:48,819 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:13:48,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:13:48,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:13:48,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:13:48,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:13:48" (1/1) ... [2020-10-14 04:13:48,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263e4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:48, skipping insertion in model container [2020-10-14 04:13:48,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:13:48" (1/1) ... [2020-10-14 04:13:48,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:13:48,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:13:50,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:13:50,228 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:13:50,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:13:50,736 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:13:50,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:50 WrapperNode [2020-10-14 04:13:50,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:13:50,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:13:50,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:13:50,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:13:50,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:50" (1/1) ... [2020-10-14 04:13:50,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:50" (1/1) ... [2020-10-14 04:13:50,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:50" (1/1) ... [2020-10-14 04:13:50,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:50" (1/1) ... [2020-10-14 04:13:50,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:50" (1/1) ... [2020-10-14 04:13:50,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:50" (1/1) ... [2020-10-14 04:13:50,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:50" (1/1) ... [2020-10-14 04:13:50,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:13:50,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:13:50,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:13:50,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:13:50,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:50" (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 04:13:51,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:13:51,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:13:51,056 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 04:13:51,057 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 04:13:51,057 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 04:13:51,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:13:51,057 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 04:13:51,058 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 04:13:51,058 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 04:13:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:13:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:13:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:13:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:13:51,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:13:51,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:13:57,238 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:13:57,238 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 04:13:57,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:13:57 BoogieIcfgContainer [2020-10-14 04:13:57,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:13:57,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:13:57,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:13:57,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:13:57,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:13:48" (1/3) ... [2020-10-14 04:13:57,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6134576f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:13:57, skipping insertion in model container [2020-10-14 04:13:57,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:50" (2/3) ... [2020-10-14 04:13:57,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6134576f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:13:57, skipping insertion in model container [2020-10-14 04:13:57,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:13:57" (3/3) ... [2020-10-14 04:13:57,268 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label14.c [2020-10-14 04:13:57,280 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:13:57,295 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:13:57,311 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:13:57,344 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:13:57,345 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:13:57,345 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:13:57,345 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:13:57,345 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:13:57,345 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:13:57,345 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:13:57,346 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:13:57,392 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 04:13:57,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 04:13:57,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:13:57,408 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] [2020-10-14 04:13:57,408 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:13:57,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:13:57,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1001778367, now seen corresponding path program 1 times [2020-10-14 04:13:57,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:13:57,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072718148] [2020-10-14 04:13:57,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:13:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:57,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:58,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:58,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 04:13:58,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:58,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-10-14 04:13:58,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:58,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:58,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:13:58,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:13:58,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 04:13:58,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:13:58,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:13:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:58,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:58,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:58,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:13:58,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:58,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 04:13:58,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:58,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:58,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:13:58,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:58,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:13:58,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:58,226 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 04:13:58,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072718148] [2020-10-14 04:13:58,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:13:58,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 04:13:58,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311694751] [2020-10-14 04:13:58,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:13:58,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:13:58,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:13:58,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:13:58,254 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 04:14:08,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:14:08,303 INFO L93 Difference]: Finished difference Result 2286 states and 4364 transitions. [2020-10-14 04:14:08,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:14:08,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-10-14 04:14:08,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:14:08,349 INFO L225 Difference]: With dead ends: 2286 [2020-10-14 04:14:08,350 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 04:14:08,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:14:08,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 04:14:08,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1428. [2020-10-14 04:14:08,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-10-14 04:14:08,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2262 transitions. [2020-10-14 04:14:08,535 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2262 transitions. Word has length 56 [2020-10-14 04:14:08,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:14:08,535 INFO L479 AbstractCegarLoop]: Abstraction has 1428 states and 2262 transitions. [2020-10-14 04:14:08,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:14:08,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2262 transitions. [2020-10-14 04:14:08,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-14 04:14:08,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:08,542 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, 1, 1, 1, 1, 1, 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 04:14:08,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:14:08,542 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:08,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:08,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1629917955, now seen corresponding path program 1 times [2020-10-14 04:14:08,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:08,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337193315] [2020-10-14 04:14:08,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:08,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:08,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:09,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:09,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 04:14:09,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:14:09,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 760 [2020-10-14 04:14:09,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:09,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:09,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:09,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 04:14:09,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 04:14:09,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:14:09,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:09,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:09,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:09,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:09,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:09,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:14:09,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:09,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:09,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:09,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:09,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:09,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:14:09,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:09,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:09,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:09,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 04:14:09,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:09,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 04:14:09,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:09,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:09,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:09,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:09,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 04:14:09,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:09,669 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:14:09,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337193315] [2020-10-14 04:14:09,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:09,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:14:09,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974822152] [2020-10-14 04:14:09,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:14:09,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:09,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:14:09,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:14:09,674 INFO L87 Difference]: Start difference. First operand 1428 states and 2262 transitions. Second operand 5 states. [2020-10-14 04:14:17,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:14:17,058 INFO L93 Difference]: Finished difference Result 4274 states and 6822 transitions. [2020-10-14 04:14:17,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:14:17,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2020-10-14 04:14:17,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:14:17,074 INFO L225 Difference]: With dead ends: 4274 [2020-10-14 04:14:17,074 INFO L226 Difference]: Without dead ends: 2852 [2020-10-14 04:14:17,079 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 04:14:17,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2020-10-14 04:14:17,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2848. [2020-10-14 04:14:17,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2848 states. [2020-10-14 04:14:17,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 4072 transitions. [2020-10-14 04:14:17,160 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 4072 transitions. Word has length 125 [2020-10-14 04:14:17,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:14:17,163 INFO L479 AbstractCegarLoop]: Abstraction has 2848 states and 4072 transitions. [2020-10-14 04:14:17,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:14:17,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 4072 transitions. [2020-10-14 04:14:17,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-14 04:14:17,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:17,178 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:14:17,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:14:17,179 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:17,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:17,180 INFO L82 PathProgramCache]: Analyzing trace with hash -394124160, now seen corresponding path program 1 times [2020-10-14 04:14:17,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:17,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771330536] [2020-10-14 04:14:17,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:17,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:17,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:18,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:18,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-14 04:14:18,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:14:18,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 918 [2020-10-14 04:14:18,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:18,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 04:14:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 04:14:18,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:18,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:18,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:18,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:18,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:18,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:18,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:14:18,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:18,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:18,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:18,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:18,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:18,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:18,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 04:14:18,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:18,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 04:14:18,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:18,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:18,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:18,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:18,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 04:14:18,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:14:18,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771330536] [2020-10-14 04:14:18,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:18,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:14:18,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094651155] [2020-10-14 04:14:18,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:14:18,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:18,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:14:18,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:14:18,597 INFO L87 Difference]: Start difference. First operand 2848 states and 4072 transitions. Second operand 5 states. [2020-10-14 04:14:26,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:14:26,449 INFO L93 Difference]: Finished difference Result 8523 states and 12289 transitions. [2020-10-14 04:14:26,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:14:26,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 188 [2020-10-14 04:14:26,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:14:26,483 INFO L225 Difference]: With dead ends: 8523 [2020-10-14 04:14:26,483 INFO L226 Difference]: Without dead ends: 5681 [2020-10-14 04:14:26,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 04:14:26,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5681 states. [2020-10-14 04:14:26,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5681 to 5679. [2020-10-14 04:14:26,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5679 states. [2020-10-14 04:14:26,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5679 states to 5679 states and 7461 transitions. [2020-10-14 04:14:26,629 INFO L78 Accepts]: Start accepts. Automaton has 5679 states and 7461 transitions. Word has length 188 [2020-10-14 04:14:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:14:26,632 INFO L479 AbstractCegarLoop]: Abstraction has 5679 states and 7461 transitions. [2020-10-14 04:14:26,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:14:26,632 INFO L276 IsEmpty]: Start isEmpty. Operand 5679 states and 7461 transitions. [2020-10-14 04:14:26,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-14 04:14:26,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:26,644 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:14:26,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:14:26,645 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:26,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:26,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1403540171, now seen corresponding path program 1 times [2020-10-14 04:14:26,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:26,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706648918] [2020-10-14 04:14:26,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:26,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:27,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:27,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:27,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-14 04:14:27,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:14:27,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1103 [2020-10-14 04:14:27,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:27,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:27,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:27,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 04:14:27,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 04:14:27,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-14 04:14:27,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:27,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:27,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:27,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:27,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:27,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:14:27,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:27,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:27,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:27,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:27,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:27,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:27,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:27,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:28,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:28,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 04:14:28,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:28,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 04:14:28,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:28,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:28,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:28,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:28,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 04:14:28,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:28,109 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:14:28,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706648918] [2020-10-14 04:14:28,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:28,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:14:28,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298714637] [2020-10-14 04:14:28,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:14:28,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:28,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:14:28,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:14:28,112 INFO L87 Difference]: Start difference. First operand 5679 states and 7461 transitions. Second operand 5 states. [2020-10-14 04:14:36,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:14:36,671 INFO L93 Difference]: Finished difference Result 15613 states and 21106 transitions. [2020-10-14 04:14:36,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:14:36,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 193 [2020-10-14 04:14:36,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:14:36,726 INFO L225 Difference]: With dead ends: 15613 [2020-10-14 04:14:36,727 INFO L226 Difference]: Without dead ends: 10642 [2020-10-14 04:14:36,740 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 04:14:36,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2020-10-14 04:14:36,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 10642. [2020-10-14 04:14:36,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10642 states. [2020-10-14 04:14:37,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10642 states to 10642 states and 13131 transitions. [2020-10-14 04:14:37,017 INFO L78 Accepts]: Start accepts. Automaton has 10642 states and 13131 transitions. Word has length 193 [2020-10-14 04:14:37,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:14:37,019 INFO L479 AbstractCegarLoop]: Abstraction has 10642 states and 13131 transitions. [2020-10-14 04:14:37,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:14:37,019 INFO L276 IsEmpty]: Start isEmpty. Operand 10642 states and 13131 transitions. [2020-10-14 04:14:37,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-14 04:14:37,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:37,025 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, 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] [2020-10-14 04:14:37,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:14:37,026 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:37,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:37,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1068701656, now seen corresponding path program 1 times [2020-10-14 04:14:37,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:37,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398100841] [2020-10-14 04:14:37,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:37,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:37,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:38,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:38,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-14 04:14:38,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:14:38,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1304 [2020-10-14 04:14:38,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:38,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:38,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:38,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 04:14:38,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 04:14:38,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:38,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:38,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:38,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:38,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:38,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:38,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:14:38,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:38,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:38,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:38,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:38,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:38,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:38,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:38,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:38,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:38,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 04:14:38,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:38,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 04:14:38,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:38,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:38,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:38,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:38,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 04:14:38,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 04:14:38,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 04:14:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:38,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:38,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:38,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:14:38,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:38,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 04:14:38,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:38,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:38,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:38,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:14:38,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 04:14:38,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:38,687 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 164 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:14:38,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398100841] [2020-10-14 04:14:38,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:38,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:14:38,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823195736] [2020-10-14 04:14:38,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:14:38,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:38,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:14:38,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:14:38,690 INFO L87 Difference]: Start difference. First operand 10642 states and 13131 transitions. Second operand 7 states. [2020-10-14 04:14:50,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:14:50,497 INFO L93 Difference]: Finished difference Result 24980 states and 32017 transitions. [2020-10-14 04:14:50,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:14:50,498 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-10-14 04:14:50,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:14:50,556 INFO L225 Difference]: With dead ends: 24980 [2020-10-14 04:14:50,557 INFO L226 Difference]: Without dead ends: 15046 [2020-10-14 04:14:50,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 04:14:50,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15046 states. [2020-10-14 04:14:50,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15046 to 12915. [2020-10-14 04:14:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12915 states. [2020-10-14 04:14:50,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12915 states to 12915 states and 15784 transitions. [2020-10-14 04:14:50,888 INFO L78 Accepts]: Start accepts. Automaton has 12915 states and 15784 transitions. Word has length 195 [2020-10-14 04:14:50,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:14:50,888 INFO L479 AbstractCegarLoop]: Abstraction has 12915 states and 15784 transitions. [2020-10-14 04:14:50,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:14:50,889 INFO L276 IsEmpty]: Start isEmpty. Operand 12915 states and 15784 transitions. [2020-10-14 04:14:50,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-14 04:14:50,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:50,895 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:14:50,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:14:50,895 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:50,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:50,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1015670817, now seen corresponding path program 1 times [2020-10-14 04:14:50,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:50,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528147110] [2020-10-14 04:14:50,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:50,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:51,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:51,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:52,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:53,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:53,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-14 04:14:53,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:14:53,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2705 [2020-10-14 04:14:53,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:53,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:53,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:53,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:14:53,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 04:14:53,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:53,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:53,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:53,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:53,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:53,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:53,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:14:53,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:53,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:53,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:53,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:53,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:53,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:53,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:53,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:53,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:53,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:14:53,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:53,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 04:14:53,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:53,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:14:53,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:53,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:14:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:53,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:54,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:54,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 04:14:54,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:54,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 04:14:54,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:54,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:54,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:54,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:14:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 04:14:54,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:54,126 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:14:54,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1528147110] [2020-10-14 04:14:54,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:54,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:14:54,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364769922] [2020-10-14 04:14:54,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:14:54,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:54,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:14:54,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:14:54,130 INFO L87 Difference]: Start difference. First operand 12915 states and 15784 transitions. Second operand 7 states. [2020-10-14 04:15:06,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:15:06,817 INFO L93 Difference]: Finished difference Result 32522 states and 40814 transitions. [2020-10-14 04:15:06,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:15:06,818 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 272 [2020-10-14 04:15:06,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:15:06,872 INFO L225 Difference]: With dead ends: 32522 [2020-10-14 04:15:06,873 INFO L226 Difference]: Without dead ends: 18145 [2020-10-14 04:15:06,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:15:06,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18145 states. [2020-10-14 04:15:07,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18145 to 18111. [2020-10-14 04:15:07,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18111 states. [2020-10-14 04:15:07,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18111 states to 18111 states and 20732 transitions. [2020-10-14 04:15:07,252 INFO L78 Accepts]: Start accepts. Automaton has 18111 states and 20732 transitions. Word has length 272 [2020-10-14 04:15:07,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:15:07,252 INFO L479 AbstractCegarLoop]: Abstraction has 18111 states and 20732 transitions. [2020-10-14 04:15:07,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:15:07,253 INFO L276 IsEmpty]: Start isEmpty. Operand 18111 states and 20732 transitions. [2020-10-14 04:15:07,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-10-14 04:15:07,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:15:07,265 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 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 04:15:07,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:15:07,265 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:15:07,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:15:07,266 INFO L82 PathProgramCache]: Analyzing trace with hash -722371917, now seen corresponding path program 1 times [2020-10-14 04:15:07,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:15:07,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665078273] [2020-10-14 04:15:07,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:15:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:07,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:07,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:07,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:12,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:12,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 385 [2020-10-14 04:15:12,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:15:12,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 04:15:12,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:12,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:12,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:12,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:15:12,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 04:15:12,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:12,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:15:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:12,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:12,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:12,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:15:12,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:12,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:15:12,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:12,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:12,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:12,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:15:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:12,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:12,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:12,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:15:12,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:12,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 04:15:12,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:12,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:12,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:15:12,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:12,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:15:12,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:12,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:15:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:12,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:12,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:12,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 04:15:12,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:12,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 04:15:12,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:12,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:12,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:12,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:15:12,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 04:15:12,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:13,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-14 04:15:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:13,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:13,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:13,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:15:13,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:13,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-14 04:15:13,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:13,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:13,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 04:15:13,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:13,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:13,582 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 254 proven. 86 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-14 04:15:13,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665078273] [2020-10-14 04:15:13,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:15:13,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:15:13,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058905497] [2020-10-14 04:15:13,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:15:13,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:15:13,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:15:13,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:15:13,588 INFO L87 Difference]: Start difference. First operand 18111 states and 20732 transitions. Second operand 8 states. [2020-10-14 04:15:31,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:15:31,174 INFO L93 Difference]: Finished difference Result 43520 states and 49803 transitions. [2020-10-14 04:15:31,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 04:15:31,176 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 371 [2020-10-14 04:15:31,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:15:31,250 INFO L225 Difference]: With dead ends: 43520 [2020-10-14 04:15:31,250 INFO L226 Difference]: Without dead ends: 24705 [2020-10-14 04:15:31,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:15:31,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24705 states. [2020-10-14 04:15:31,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24705 to 24659. [2020-10-14 04:15:31,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24659 states. [2020-10-14 04:15:31,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24659 states to 24659 states and 27708 transitions. [2020-10-14 04:15:31,878 INFO L78 Accepts]: Start accepts. Automaton has 24659 states and 27708 transitions. Word has length 371 [2020-10-14 04:15:31,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:15:31,879 INFO L479 AbstractCegarLoop]: Abstraction has 24659 states and 27708 transitions. [2020-10-14 04:15:31,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:15:31,879 INFO L276 IsEmpty]: Start isEmpty. Operand 24659 states and 27708 transitions. [2020-10-14 04:15:31,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2020-10-14 04:15:31,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:15:31,892 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, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:31,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:15:31,893 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:15:31,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:15:31,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1930145581, now seen corresponding path program 1 times [2020-10-14 04:15:31,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:15:31,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200813631] [2020-10-14 04:15:31,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:15:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:32,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:32,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:32,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:35,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:36,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:36,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 513 [2020-10-14 04:15:36,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:15:36,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 04:15:36,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:36,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:36,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:15:36,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-14 04:15:36,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:37,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:15:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:37,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:37,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:37,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:15:37,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:37,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:15:37,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:37,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:37,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:37,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:37,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:37,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:37,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:15:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:37,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:37,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:37,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:15:37,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:37,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 04:15:37,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:37,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:15:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:15:37,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:37,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:15:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:37,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:37,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:37,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-14 04:15:37,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:37,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-14 04:15:37,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:37,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:37,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:37,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:15:37,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 243 [2020-10-14 04:15:37,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:37,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-14 04:15:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:37,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:37,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:37,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 04:15:37,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:37,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 04:15:37,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:37,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:37,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:37,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 04:15:37,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:37,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:38,279 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 270 proven. 78 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-14 04:15:38,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200813631] [2020-10-14 04:15:38,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:15:38,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:15:38,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912863441] [2020-10-14 04:15:38,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:15:38,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:15:38,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:15:38,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:15:38,283 INFO L87 Difference]: Start difference. First operand 24659 states and 27708 transitions. Second operand 7 states. [2020-10-14 04:15:46,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:15:46,009 INFO L93 Difference]: Finished difference Result 47967 states and 54058 transitions. [2020-10-14 04:15:46,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:15:46,011 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 499 [2020-10-14 04:15:46,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:15:46,077 INFO L225 Difference]: With dead ends: 47967 [2020-10-14 04:15:46,077 INFO L226 Difference]: Without dead ends: 23314 [2020-10-14 04:15:46,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:15:46,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23314 states. [2020-10-14 04:15:46,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23314 to 23258. [2020-10-14 04:15:46,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23258 states. [2020-10-14 04:15:46,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23258 states to 23258 states and 25510 transitions. [2020-10-14 04:15:46,478 INFO L78 Accepts]: Start accepts. Automaton has 23258 states and 25510 transitions. Word has length 499 [2020-10-14 04:15:46,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:15:46,479 INFO L479 AbstractCegarLoop]: Abstraction has 23258 states and 25510 transitions. [2020-10-14 04:15:46,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:15:46,479 INFO L276 IsEmpty]: Start isEmpty. Operand 23258 states and 25510 transitions. [2020-10-14 04:15:46,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2020-10-14 04:15:46,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:15:46,493 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:46,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:15:46,493 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:15:46,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:15:46,494 INFO L82 PathProgramCache]: Analyzing trace with hash -232587610, now seen corresponding path program 1 times [2020-10-14 04:15:46,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:15:46,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224229633] [2020-10-14 04:15:46,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:15:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:46,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:46,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:46,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:51,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:51,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 542 [2020-10-14 04:15:51,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:15:51,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 04:15:51,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:51,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:15:51,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 283 [2020-10-14 04:15:51,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:51,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:15:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:51,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:51,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:51,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:15:51,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:51,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:15:51,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:51,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:51,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:51,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:51,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:15:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:51,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:51,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:51,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:15:51,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:51,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 04:15:51,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:51,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:51,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:15:51,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:51,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:15:51,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:51,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:15:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:51,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:52,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:52,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-14 04:15:52,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:52,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-14 04:15:52,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:52,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:52,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:52,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:15:52,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 281 [2020-10-14 04:15:52,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:52,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 04:15:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:52,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:52,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:52,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:15:52,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:52,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 04:15:52,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:52,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:52,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:52,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 04:15:52,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:52,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:52,580 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 270 proven. 69 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-14 04:15:52,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224229633] [2020-10-14 04:15:52,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:15:52,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:15:52,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796905392] [2020-10-14 04:15:52,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:15:52,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:15:52,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:15:52,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:15:52,583 INFO L87 Difference]: Start difference. First operand 23258 states and 25510 transitions. Second operand 8 states. [2020-10-14 04:16:09,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:16:09,545 INFO L93 Difference]: Finished difference Result 66777 states and 75437 transitions. [2020-10-14 04:16:09,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 04:16:09,546 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 528 [2020-10-14 04:16:09,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:16:09,756 INFO L225 Difference]: With dead ends: 66777 [2020-10-14 04:16:09,757 INFO L226 Difference]: Without dead ends: 42109 [2020-10-14 04:16:09,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 04:16:09,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42109 states. [2020-10-14 04:16:10,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42109 to 40595. [2020-10-14 04:16:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40595 states. [2020-10-14 04:16:10,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40595 states to 40595 states and 45388 transitions. [2020-10-14 04:16:10,444 INFO L78 Accepts]: Start accepts. Automaton has 40595 states and 45388 transitions. Word has length 528 [2020-10-14 04:16:10,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:16:10,445 INFO L479 AbstractCegarLoop]: Abstraction has 40595 states and 45388 transitions. [2020-10-14 04:16:10,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:16:10,446 INFO L276 IsEmpty]: Start isEmpty. Operand 40595 states and 45388 transitions. [2020-10-14 04:16:10,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2020-10-14 04:16:10,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:16:10,465 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:16:10,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:16:10,465 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:16:10,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:16:10,466 INFO L82 PathProgramCache]: Analyzing trace with hash -47013180, now seen corresponding path program 1 times [2020-10-14 04:16:10,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:16:10,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177580416] [2020-10-14 04:16:10,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:16:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:10,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:11,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:11,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:15,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:15,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 624 [2020-10-14 04:16:15,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:16:15,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4928 [2020-10-14 04:16:15,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:15,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:15,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:15,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 565 [2020-10-14 04:16:15,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 04:16:15,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:15,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:16:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:15,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:15,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:15,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:16:15,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:15,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:16:15,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:15,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:15,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:15,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:15,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:16:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:15,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:15,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:15,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:16:15,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:15,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 04:16:15,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:15,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:15,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:15,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:15,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:15,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:15,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:16:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:15,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:16,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:16,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 435 [2020-10-14 04:16:16,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:16,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-14 04:16:16,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:16,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:16,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:16,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:16,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 426 [2020-10-14 04:16:16,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:16,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:16:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:16,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:16,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:16,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-14 04:16:16,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:16,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 04:16:16,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:16,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:16,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:16,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:16,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 04:16:16,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-14 04:16:16,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177580416] [2020-10-14 04:16:16,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:16:16,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:16:16,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775429098] [2020-10-14 04:16:16,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:16:16,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:16:16,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:16:16,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:16:16,486 INFO L87 Difference]: Start difference. First operand 40595 states and 45388 transitions. Second operand 5 states. [2020-10-14 04:16:24,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:16:24,518 INFO L93 Difference]: Finished difference Result 81222 states and 90813 transitions. [2020-10-14 04:16:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:16:24,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 610 [2020-10-14 04:16:24,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:16:24,611 INFO L225 Difference]: With dead ends: 81222 [2020-10-14 04:16:24,611 INFO L226 Difference]: Without dead ends: 40633 [2020-10-14 04:16:24,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 2 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 04:16:24,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40633 states. [2020-10-14 04:16:25,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40633 to 40588. [2020-10-14 04:16:25,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40588 states. [2020-10-14 04:16:25,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40588 states to 40588 states and 44607 transitions. [2020-10-14 04:16:25,255 INFO L78 Accepts]: Start accepts. Automaton has 40588 states and 44607 transitions. Word has length 610 [2020-10-14 04:16:25,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:16:25,256 INFO L479 AbstractCegarLoop]: Abstraction has 40588 states and 44607 transitions. [2020-10-14 04:16:25,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:16:25,256 INFO L276 IsEmpty]: Start isEmpty. Operand 40588 states and 44607 transitions. [2020-10-14 04:16:25,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2020-10-14 04:16:25,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:16:25,265 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:16:25,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:16:25,265 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:16:25,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:16:25,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1756994839, now seen corresponding path program 1 times [2020-10-14 04:16:25,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:16:25,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042020417] [2020-10-14 04:16:25,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:16:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:25,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:25,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:28,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:28,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 651 [2020-10-14 04:16:28,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:16:28,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3020 [2020-10-14 04:16:28,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:28,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 520 [2020-10-14 04:16:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 04:16:28,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:28,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:16:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:28,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:28,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:28,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:16:28,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:28,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:16:28,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:28,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:28,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:28,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:28,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:28,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:28,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:16:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:28,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:28,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:28,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:16:28,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:28,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 04:16:28,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:28,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:28,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:28,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:28,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:16:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:28,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:29,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:29,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 390 [2020-10-14 04:16:29,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:29,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-14 04:16:29,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:29,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:29,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:29,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:29,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 381 [2020-10-14 04:16:29,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:29,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:16:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:29,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:29,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:29,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 04:16:29,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:29,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 04:16:29,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:29,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:29,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:29,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:29,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 04:16:29,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:29,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 04:16:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:29,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:29,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:29,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:16:29,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:29,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 04:16:29,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:29,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:29,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:29,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:16:29,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 04:16:29,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:29,683 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 286 proven. 2 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2020-10-14 04:16:29,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042020417] [2020-10-14 04:16:29,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:16:29,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:16:29,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175643266] [2020-10-14 04:16:29,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:16:29,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:16:29,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:16:29,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:16:29,686 INFO L87 Difference]: Start difference. First operand 40588 states and 44607 transitions. Second operand 7 states. [2020-10-14 04:16:42,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:16:42,300 INFO L93 Difference]: Finished difference Result 84815 states and 93721 transitions. [2020-10-14 04:16:42,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:16:42,302 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 635 [2020-10-14 04:16:42,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:16:42,391 INFO L225 Difference]: With dead ends: 84815 [2020-10-14 04:16:42,391 INFO L226 Difference]: Without dead ends: 40668 [2020-10-14 04:16:42,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:16:42,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40668 states. [2020-10-14 04:16:43,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40668 to 39145. [2020-10-14 04:16:43,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39145 states. [2020-10-14 04:16:43,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39145 states to 39145 states and 42608 transitions. [2020-10-14 04:16:43,423 INFO L78 Accepts]: Start accepts. Automaton has 39145 states and 42608 transitions. Word has length 635 [2020-10-14 04:16:43,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:16:43,423 INFO L479 AbstractCegarLoop]: Abstraction has 39145 states and 42608 transitions. [2020-10-14 04:16:43,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:16:43,424 INFO L276 IsEmpty]: Start isEmpty. Operand 39145 states and 42608 transitions. [2020-10-14 04:16:43,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2020-10-14 04:16:43,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:16:43,433 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:16:43,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:16:43,433 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:16:43,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:16:43,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1047189329, now seen corresponding path program 1 times [2020-10-14 04:16:43,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:16:43,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967517705] [2020-10-14 04:16:43,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:16:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:43,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:43,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:45,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:47,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:47,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 679 [2020-10-14 04:16:47,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:16:47,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4151 [2020-10-14 04:16:47,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:47,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:47,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:47,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 540 [2020-10-14 04:16:47,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 04:16:47,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:47,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:16:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:47,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:47,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:47,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:16:47,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:47,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:16:47,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:47,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:47,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:47,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:47,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:47,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:47,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:16:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:47,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:47,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:47,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:16:47,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:47,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 04:16:47,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:47,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:47,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:47,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:47,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:47,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:16:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:47,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:48,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:48,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 410 [2020-10-14 04:16:48,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:48,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 04:16:48,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:48,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:48,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:48,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:48,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 401 [2020-10-14 04:16:48,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:48,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:16:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:48,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:48,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:48,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 04:16:48,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:48,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 04:16:48,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:48,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:48,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:48,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:48,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 04:16:48,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:48,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2020-10-14 04:16:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:48,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:48,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:48,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 04:16:48,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:48,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 04:16:48,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:48,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:48,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:48,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:16:48,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 04:16:48,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:48,788 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 302 proven. 2 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2020-10-14 04:16:48,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967517705] [2020-10-14 04:16:48,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:16:48,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:16:48,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045482737] [2020-10-14 04:16:48,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:16:48,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:16:48,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:16:48,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:16:48,795 INFO L87 Difference]: Start difference. First operand 39145 states and 42608 transitions. Second operand 7 states. [2020-10-14 04:17:02,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:17:02,178 INFO L93 Difference]: Finished difference Result 87557 states and 96405 transitions. [2020-10-14 04:17:02,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:17:02,180 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 663 [2020-10-14 04:17:02,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:17:02,267 INFO L225 Difference]: With dead ends: 87557 [2020-10-14 04:17:02,267 INFO L226 Difference]: Without dead ends: 48419 [2020-10-14 04:17:02,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 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 04:17:02,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48419 states. [2020-10-14 04:17:02,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48419 to 48358. [2020-10-14 04:17:02,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48358 states. [2020-10-14 04:17:02,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48358 states to 48358 states and 52446 transitions. [2020-10-14 04:17:02,958 INFO L78 Accepts]: Start accepts. Automaton has 48358 states and 52446 transitions. Word has length 663 [2020-10-14 04:17:02,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:17:02,958 INFO L479 AbstractCegarLoop]: Abstraction has 48358 states and 52446 transitions. [2020-10-14 04:17:02,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:17:02,959 INFO L276 IsEmpty]: Start isEmpty. Operand 48358 states and 52446 transitions. [2020-10-14 04:17:02,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2020-10-14 04:17:02,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:17:02,972 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:02,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:17:02,972 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:17:02,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:17:02,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1104550779, now seen corresponding path program 1 times [2020-10-14 04:17:02,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:17:02,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514869200] [2020-10-14 04:17:02,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:17:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:03,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:03,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:03,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:08,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:08,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 681 [2020-10-14 04:17:08,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:17:08,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5780 [2020-10-14 04:17:08,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:08,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:08,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:17:08,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 625 [2020-10-14 04:17:08,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 04:17:08,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:08,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:17:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:08,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:08,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:08,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:17:08,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:08,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:17:08,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:08,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:08,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:08,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:08,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:08,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:08,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:17:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:09,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:09,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:09,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:17:09,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:09,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 04:17:09,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:09,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:09,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:09,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:09,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:09,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:09,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:17:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:09,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:09,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:09,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 390 [2020-10-14 04:17:09,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:09,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 04:17:09,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:09,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:09,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:09,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:09,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:09,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:17:09,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:17:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:09,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:09,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:09,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 04:17:09,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:09,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 04:17:09,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:09,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:09,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:09,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:09,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:09,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:09,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 04:17:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:09,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:09,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:09,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 04:17:09,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:09,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 04:17:09,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:09,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:09,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:17:09,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:09,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 04:17:09,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:09,568 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 150 proven. 3 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2020-10-14 04:17:09,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514869200] [2020-10-14 04:17:09,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:17:09,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:17:09,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123487298] [2020-10-14 04:17:09,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:17:09,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:17:09,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:17:09,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:17:09,571 INFO L87 Difference]: Start difference. First operand 48358 states and 52446 transitions. Second operand 5 states. [2020-10-14 04:17:19,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:17:19,607 INFO L93 Difference]: Finished difference Result 104544 states and 114143 transitions. [2020-10-14 04:17:19,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:17:19,608 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 665 [2020-10-14 04:17:19,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:17:19,703 INFO L225 Difference]: With dead ends: 104544 [2020-10-14 04:17:19,703 INFO L226 Difference]: Without dead ends: 56071 [2020-10-14 04:17:19,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 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 04:17:19,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56071 states. [2020-10-14 04:17:20,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56071 to 55343. [2020-10-14 04:17:20,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55343 states. [2020-10-14 04:17:20,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55343 states to 55343 states and 59245 transitions. [2020-10-14 04:17:20,575 INFO L78 Accepts]: Start accepts. Automaton has 55343 states and 59245 transitions. Word has length 665 [2020-10-14 04:17:20,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:17:20,576 INFO L479 AbstractCegarLoop]: Abstraction has 55343 states and 59245 transitions. [2020-10-14 04:17:20,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:17:20,576 INFO L276 IsEmpty]: Start isEmpty. Operand 55343 states and 59245 transitions. [2020-10-14 04:17:20,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2020-10-14 04:17:20,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:17:20,588 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:20,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 04:17:20,588 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:17:20,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:17:20,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1978416479, now seen corresponding path program 1 times [2020-10-14 04:17:20,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:17:20,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466802405] [2020-10-14 04:17:20,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:17:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:20,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:20,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:21,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:25,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:25,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 775 [2020-10-14 04:17:25,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:17:25,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 04:17:25,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:25,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:25,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:17:25,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 719 [2020-10-14 04:17:25,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 04:17:25,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:25,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:17:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:25,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:25,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:25,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:17:25,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:25,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:17:25,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:25,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:25,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:25,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:25,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:25,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:25,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:17:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:25,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:25,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:25,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:17:25,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:25,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 04:17:25,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:25,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:25,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:25,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:25,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:25,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:25,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:17:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:25,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:26,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:26,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 390 [2020-10-14 04:17:26,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:26,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 04:17:26,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:26,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:26,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:26,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:17:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:26,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:26,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:26,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 04:17:26,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:26,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:17:26,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:26,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:26,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:26,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:26,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:26,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:26,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 04:17:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:26,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:26,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:26,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-14 04:17:26,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:26,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 04:17:26,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:26,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:26,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:17:26,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:26,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-14 04:17:26,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:26,470 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 150 proven. 3 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2020-10-14 04:17:26,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466802405] [2020-10-14 04:17:26,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:17:26,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:17:26,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602641739] [2020-10-14 04:17:26,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:17:26,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:17:26,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:17:26,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:17:26,472 INFO L87 Difference]: Start difference. First operand 55343 states and 59245 transitions. Second operand 5 states.