/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/Problem17_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:02:04,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:02:04,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:02:04,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:02:04,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:02:04,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:02:04,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:02:04,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:02:04,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:02:04,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:02:04,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:02:04,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:02:04,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:02:04,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:02:04,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:02:04,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:02:04,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:02:04,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:02:04,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:02:04,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:02:04,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:02:04,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:02:04,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:02:04,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:02:04,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:02:04,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:02:04,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:02:04,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:02:04,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:02:04,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:02:04,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:02:04,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:02:04,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:02:04,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:02:04,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:02:04,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:02:04,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:02:04,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:02:04,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:02:04,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:02:04,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:02:04,563 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 04:02:04,604 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:02:04,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:02:04,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:02:04,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:02:04,606 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:02:04,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:02:04,606 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:02:04,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:02:04,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:02:04,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:02:04,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:02:04,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:02:04,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:02:04,608 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:02:04,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:02:04,608 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:02:04,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:02:04,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:02:04,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:02:04,609 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:02:04,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:02:04,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:02:04,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:02:04,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:02:04,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:02:04,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:02:04,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:02:04,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:02:04,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:02:04,611 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 04:02:04,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:02:04,906 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:02:04,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:02:04,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:02:04,912 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:02:04,913 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label33.c [2020-10-14 04:02:04,982 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16dec292a/72f167976c31464ba2d0181fc80fcebe/FLAG617f65610 [2020-10-14 04:02:05,665 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:02:05,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem17_label33.c [2020-10-14 04:02:05,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16dec292a/72f167976c31464ba2d0181fc80fcebe/FLAG617f65610 [2020-10-14 04:02:05,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16dec292a/72f167976c31464ba2d0181fc80fcebe [2020-10-14 04:02:05,835 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:02:05,838 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:02:05,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:02:05,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:02:05,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:02:05,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:02:05" (1/1) ... [2020-10-14 04:02:05,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e85302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:02:05, skipping insertion in model container [2020-10-14 04:02:05,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:02:05" (1/1) ... [2020-10-14 04:02:05,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:02:05,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:02:07,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:02:07,171 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:02:07,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:02:07,607 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:02:07,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:02:07 WrapperNode [2020-10-14 04:02:07,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:02:07,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:02:07,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:02:07,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:02:07,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:02:07" (1/1) ... [2020-10-14 04:02:07,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:02:07" (1/1) ... [2020-10-14 04:02:07,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:02:07" (1/1) ... [2020-10-14 04:02:07,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:02:07" (1/1) ... [2020-10-14 04:02:07,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:02:07" (1/1) ... [2020-10-14 04:02:07,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:02:07" (1/1) ... [2020-10-14 04:02:07,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:02:07" (1/1) ... [2020-10-14 04:02:07,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:02:07,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:02:07,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:02:07,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:02:07,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:02:07" (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 04:02:07,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:02:07,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:02:07,923 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 04:02:07,923 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 04:02:07,924 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:02:07,924 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 04:02:07,924 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 04:02:07,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:02:07,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:02:07,925 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:02:07,925 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:02:07,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:02:07,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:02:16,197 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:02:16,198 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 04:02:16,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:02:16 BoogieIcfgContainer [2020-10-14 04:02:16,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:02:16,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:02:16,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:02:16,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:02:16,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:02:05" (1/3) ... [2020-10-14 04:02:16,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c1a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:02:16, skipping insertion in model container [2020-10-14 04:02:16,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:02:07" (2/3) ... [2020-10-14 04:02:16,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c1a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:02:16, skipping insertion in model container [2020-10-14 04:02:16,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:02:16" (3/3) ... [2020-10-14 04:02:16,290 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem17_label33.c [2020-10-14 04:02:16,304 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:02:16,315 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:02:16,330 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:02:16,359 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:02:16,360 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:02:16,360 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:02:16,360 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:02:16,360 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:02:16,360 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:02:16,360 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:02:16,361 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:02:16,401 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states. [2020-10-14 04:02:16,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-14 04:02:16,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:02:16,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:02:16,409 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:02:16,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:02:16,415 INFO L82 PathProgramCache]: Analyzing trace with hash 598427417, now seen corresponding path program 1 times [2020-10-14 04:02:16,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:02:16,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976378736] [2020-10-14 04:02:16,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:02:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:02:16,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:02:16,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:02:16,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 04:02:16,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:02:16,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-14 04:02:16,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:02:16,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:02:16,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:02:16,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:02:16,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 04:02:16,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:02:16,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:02:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:02:16,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:02:16,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:02:16,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:02:16,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:02:16,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 04:02:16,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:02:16,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:02:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:02:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:02:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:02:16,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:02:17,008 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 04:02:17,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976378736] [2020-10-14 04:02:17,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:02:17,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 04:02:17,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810966525] [2020-10-14 04:02:17,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:02:17,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:02:17,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:02:17,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:02:17,033 INFO L87 Difference]: Start difference. First operand 603 states. Second operand 4 states. [2020-10-14 04:02:30,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:02:30,946 INFO L93 Difference]: Finished difference Result 1716 states and 3126 transitions. [2020-10-14 04:02:30,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:02:30,948 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-10-14 04:02:30,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:02:30,974 INFO L225 Difference]: With dead ends: 1716 [2020-10-14 04:02:30,974 INFO L226 Difference]: Without dead ends: 1034 [2020-10-14 04:02:30,987 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 04:02:31,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2020-10-14 04:02:31,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1008. [2020-10-14 04:02:31,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1008 states. [2020-10-14 04:02:31,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1705 transitions. [2020-10-14 04:02:31,107 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1705 transitions. Word has length 22 [2020-10-14 04:02:31,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:02:31,108 INFO L479 AbstractCegarLoop]: Abstraction has 1008 states and 1705 transitions. [2020-10-14 04:02:31,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:02:31,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1705 transitions. [2020-10-14 04:02:31,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 04:02:31,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:02:31,116 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:02:31,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:02:31,116 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:02:31,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:02:31,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1605546088, now seen corresponding path program 1 times [2020-10-14 04:02:31,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:02:31,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981034708] [2020-10-14 04:02:31,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:02:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:02:31,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:02:31,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:02:32,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:02:32,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:02:32,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 04:02:32,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:02:32,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1237 [2020-10-14 04:02:32,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:02:32,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:02:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:02:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 04:02:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 04:02:32,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:02:32,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:02:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:02:32,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:02:32,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:02:32,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:02:32,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:02:32,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:02:32,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:02:32,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:02:32,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:02:32,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:02:32,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:02:32,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:02:32,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:02:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:02:32,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:02:32,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:02:32,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 04:02:32,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:02:32,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 04:02:32,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:02:32,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:02:32,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:02:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:02:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 04:02:32,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:02:32,654 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:02:32,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981034708] [2020-10-14 04:02:32,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:02:32,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:02:32,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489158884] [2020-10-14 04:02:32,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:02:32,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:02:32,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:02:32,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:02:32,659 INFO L87 Difference]: Start difference. First operand 1008 states and 1705 transitions. Second operand 5 states. [2020-10-14 04:02:44,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:02:44,458 INFO L93 Difference]: Finished difference Result 2915 states and 4997 transitions. [2020-10-14 04:02:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:02:44,460 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-10-14 04:02:44,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:02:44,488 INFO L225 Difference]: With dead ends: 2915 [2020-10-14 04:02:44,488 INFO L226 Difference]: Without dead ends: 1913 [2020-10-14 04:02:44,493 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 04:02:44,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1913 states. [2020-10-14 04:02:44,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1913 to 1899. [2020-10-14 04:02:44,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1899 states. [2020-10-14 04:02:44,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 2958 transitions. [2020-10-14 04:02:44,550 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 2958 transitions. Word has length 91 [2020-10-14 04:02:44,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:02:44,551 INFO L479 AbstractCegarLoop]: Abstraction has 1899 states and 2958 transitions. [2020-10-14 04:02:44,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:02:44,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 2958 transitions. [2020-10-14 04:02:44,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 04:02:44,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:02:44,615 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:02:44,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:02:44,616 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:02:44,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:02:44,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1844735268, now seen corresponding path program 1 times [2020-10-14 04:02:44,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:02:44,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292485317] [2020-10-14 04:02:44,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:02:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:02:44,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:02:44,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:02:45,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:02:45,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:02:45,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:02:45,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 04:02:45,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:02:45,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1143 [2020-10-14 04:02:45,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:02:45,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:02:45,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:02:45,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 04:02:45,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 04:02:45,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:02:45,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:02:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:02:45,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:02:45,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:02:45,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:02:45,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:02:45,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:02:45,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:02:45,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:02:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:02:45,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:02:45,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:02:45,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:02:45,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:02:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:02:45,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:02:46,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:02:46,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 04:02:46,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:02:46,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-14 04:02:46,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:02:46,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:02:46,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:02:46,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:02:46,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 04:02:46,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:02:46,131 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:02:46,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292485317] [2020-10-14 04:02:46,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:02:46,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:02:46,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346535904] [2020-10-14 04:02:46,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:02:46,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:02:46,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:02:46,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:02:46,134 INFO L87 Difference]: Start difference. First operand 1899 states and 2958 transitions. Second operand 5 states. [2020-10-14 04:03:00,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:03:00,682 INFO L93 Difference]: Finished difference Result 5555 states and 8817 transitions. [2020-10-14 04:03:00,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:03:00,684 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2020-10-14 04:03:00,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:03:00,709 INFO L225 Difference]: With dead ends: 5555 [2020-10-14 04:03:00,709 INFO L226 Difference]: Without dead ends: 3662 [2020-10-14 04:03:00,715 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 04:03:00,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2020-10-14 04:03:00,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3654. [2020-10-14 04:03:00,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3654 states. [2020-10-14 04:03:00,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 5032 transitions. [2020-10-14 04:03:00,832 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 5032 transitions. Word has length 97 [2020-10-14 04:03:00,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:03:00,832 INFO L479 AbstractCegarLoop]: Abstraction has 3654 states and 5032 transitions. [2020-10-14 04:03:00,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:03:00,833 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 5032 transitions. [2020-10-14 04:03:00,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-14 04:03:00,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:03:00,846 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:03:00,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:03:00,847 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:03:00,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:03:00,847 INFO L82 PathProgramCache]: Analyzing trace with hash -792381629, now seen corresponding path program 1 times [2020-10-14 04:03:00,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:03:00,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107091037] [2020-10-14 04:03:00,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:03:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:03:00,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:01,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:01,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:01,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:02,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:03:02,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 04:03:02,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:03:02,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1818 [2020-10-14 04:03:02,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:03:02,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:03:02,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:03:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-14 04:03:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:03:02,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:03:02,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:03:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:03:02,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:02,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:03:02,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:03:02,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:03:02,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:03:02,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:03:02,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:03:02,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:03:02,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:03:02,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:03:02,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:03:02,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:03:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:03:02,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:02,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:03:02,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 04:03:02,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:03:02,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 04:03:02,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:03:02,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:03:02,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:03:02,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:03:02,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 04:03:02,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:03:03,082 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:03:03,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107091037] [2020-10-14 04:03:03,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:03:03,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:03:03,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461200071] [2020-10-14 04:03:03,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:03:03,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:03:03,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:03:03,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:03:03,087 INFO L87 Difference]: Start difference. First operand 3654 states and 5032 transitions. Second operand 5 states. [2020-10-14 04:03:18,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:03:18,708 INFO L93 Difference]: Finished difference Result 9054 states and 12798 transitions. [2020-10-14 04:03:18,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:03:18,709 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-14 04:03:18,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:03:18,737 INFO L225 Difference]: With dead ends: 9054 [2020-10-14 04:03:18,737 INFO L226 Difference]: Without dead ends: 5406 [2020-10-14 04:03:18,747 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 04:03:18,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5406 states. [2020-10-14 04:03:18,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5406 to 5396. [2020-10-14 04:03:18,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5396 states. [2020-10-14 04:03:18,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5396 states to 5396 states and 7214 transitions. [2020-10-14 04:03:18,905 INFO L78 Accepts]: Start accepts. Automaton has 5396 states and 7214 transitions. Word has length 155 [2020-10-14 04:03:18,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:03:18,907 INFO L479 AbstractCegarLoop]: Abstraction has 5396 states and 7214 transitions. [2020-10-14 04:03:18,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:03:18,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5396 states and 7214 transitions. [2020-10-14 04:03:18,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-14 04:03:18,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:03:18,913 INFO L422 BasicCegarLoop]: trace histogram [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 04:03:18,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:03:18,913 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:03:18,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:03:18,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1507212747, now seen corresponding path program 1 times [2020-10-14 04:03:18,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:03:18,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712951308] [2020-10-14 04:03:18,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:03:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:03:19,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:19,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:19,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:03:19,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 04:03:19,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:03:19,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 931 [2020-10-14 04:03:19,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:03:19,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:03:19,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:03:19,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 04:03:19,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 04:03:19,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:03:19,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:03:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:03:19,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:19,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:03:19,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:03:19,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:03:19,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:03:19,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:03:19,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:03:19,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:03:19,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:03:19,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:03:19,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:03:20,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:03:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:03:20,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:20,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:03:20,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 04:03:20,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:03:20,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 04:03:20,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:03:20,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:03:20,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:03:20,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:03:20,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 04:03:20,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 04:03:20,293 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:03:20,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712951308] [2020-10-14 04:03:20,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:03:20,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:03:20,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514038130] [2020-10-14 04:03:20,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:03:20,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:03:20,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:03:20,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:03:20,297 INFO L87 Difference]: Start difference. First operand 5396 states and 7214 transitions. Second operand 5 states. [2020-10-14 04:03:35,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:03:35,431 INFO L93 Difference]: Finished difference Result 13444 states and 18774 transitions. [2020-10-14 04:03:35,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:03:35,435 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2020-10-14 04:03:35,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:03:35,472 INFO L225 Difference]: With dead ends: 13444 [2020-10-14 04:03:35,473 INFO L226 Difference]: Without dead ends: 8054 [2020-10-14 04:03:35,488 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 04:03:35,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8054 states. [2020-10-14 04:03:35,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8054 to 8041. [2020-10-14 04:03:35,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8041 states. [2020-10-14 04:03:35,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8041 states to 8041 states and 10855 transitions. [2020-10-14 04:03:35,695 INFO L78 Accepts]: Start accepts. Automaton has 8041 states and 10855 transitions. Word has length 159 [2020-10-14 04:03:35,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:03:35,696 INFO L479 AbstractCegarLoop]: Abstraction has 8041 states and 10855 transitions. [2020-10-14 04:03:35,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:03:35,696 INFO L276 IsEmpty]: Start isEmpty. Operand 8041 states and 10855 transitions. [2020-10-14 04:03:35,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-14 04:03:35,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:03:35,699 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:03:35,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:03:35,699 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:03:35,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:03:35,700 INFO L82 PathProgramCache]: Analyzing trace with hash 761178435, now seen corresponding path program 1 times [2020-10-14 04:03:35,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:03:35,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344394199] [2020-10-14 04:03:35,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:03:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:03:35,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:36,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:36,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:03:36,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-14 04:03:36,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:03:36,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 998 [2020-10-14 04:03:36,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:03:36,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:03:36,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:03:36,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-14 04:03:36,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 04:03:36,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:03:36,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:03:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:03:36,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:36,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:03:36,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:03:36,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:03:36,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:03:36,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:03:36,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:03:36,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:03:36,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:03:36,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:03:36,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:03:36,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:03:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:03:36,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:37,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:03:37,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 04:03:37,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:03:37,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 04:03:37,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:03:37,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:03:37,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:03:37,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:03:37,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 04:03:37,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:03:37,148 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:03:37,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344394199] [2020-10-14 04:03:37,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:03:37,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:03:37,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463311256] [2020-10-14 04:03:37,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:03:37,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:03:37,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:03:37,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:03:37,151 INFO L87 Difference]: Start difference. First operand 8041 states and 10855 transitions. Second operand 5 states. [2020-10-14 04:03:53,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:03:53,443 INFO L93 Difference]: Finished difference Result 18290 states and 25213 transitions. [2020-10-14 04:03:53,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:03:53,445 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163 [2020-10-14 04:03:53,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:03:53,495 INFO L225 Difference]: With dead ends: 18290 [2020-10-14 04:03:53,495 INFO L226 Difference]: Without dead ends: 10255 [2020-10-14 04:03:53,514 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 04:03:53,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10255 states. [2020-10-14 04:03:53,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10255 to 10229. [2020-10-14 04:03:53,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10229 states. [2020-10-14 04:03:53,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10229 states to 10229 states and 13689 transitions. [2020-10-14 04:03:53,774 INFO L78 Accepts]: Start accepts. Automaton has 10229 states and 13689 transitions. Word has length 163 [2020-10-14 04:03:53,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:03:53,775 INFO L479 AbstractCegarLoop]: Abstraction has 10229 states and 13689 transitions. [2020-10-14 04:03:53,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:03:53,775 INFO L276 IsEmpty]: Start isEmpty. Operand 10229 states and 13689 transitions. [2020-10-14 04:03:53,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-14 04:03:53,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:03:53,778 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:03:53,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:03:53,779 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:03:53,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:03:53,779 INFO L82 PathProgramCache]: Analyzing trace with hash 827991667, now seen corresponding path program 1 times [2020-10-14 04:03:53,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:03:53,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563810577] [2020-10-14 04:03:53,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:03:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:03:53,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:53,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:54,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:55,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:56,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:03:56,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 04:03:56,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:03:56,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2243 [2020-10-14 04:03:56,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:03:56,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:03:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:03:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 04:03:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 04:03:56,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:03:56,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:03:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:03:56,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:56,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:03:56,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:03:56,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:03:56,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:03:56,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:03:56,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:03:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:03:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:03:56,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:03:56,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:03:56,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:03:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:03:56,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:56,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:03:56,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 04:03:56,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:03:56,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 04:03:56,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:03:56,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:03:56,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:03:56,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:03:56,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 04:03:56,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:03:56,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 04:03:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:03:56,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:03:56,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:03:56,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:03:56,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:03:56,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 04:03:56,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:03:56,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:03:56,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:03:56,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:03:56,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 04:03:56,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:03:56,628 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:03:56,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563810577] [2020-10-14 04:03:56,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:03:56,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:03:56,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866295090] [2020-10-14 04:03:56,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:03:56,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:03:56,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:03:56,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:03:56,633 INFO L87 Difference]: Start difference. First operand 10229 states and 13689 transitions. Second operand 7 states. [2020-10-14 04:04:11,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:04:11,707 INFO L93 Difference]: Finished difference Result 30173 states and 45045 transitions. [2020-10-14 04:04:11,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:04:11,709 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-10-14 04:04:11,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:04:11,837 INFO L225 Difference]: With dead ends: 30173 [2020-10-14 04:04:11,837 INFO L226 Difference]: Without dead ends: 19950 [2020-10-14 04:04:11,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:04:11,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19950 states. [2020-10-14 04:04:12,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19950 to 19249. [2020-10-14 04:04:12,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19249 states. [2020-10-14 04:04:13,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19249 states to 19249 states and 26892 transitions. [2020-10-14 04:04:13,423 INFO L78 Accepts]: Start accepts. Automaton has 19249 states and 26892 transitions. Word has length 171 [2020-10-14 04:04:13,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:04:13,423 INFO L479 AbstractCegarLoop]: Abstraction has 19249 states and 26892 transitions. [2020-10-14 04:04:13,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:04:13,424 INFO L276 IsEmpty]: Start isEmpty. Operand 19249 states and 26892 transitions. [2020-10-14 04:04:13,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-14 04:04:13,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:04:13,429 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:04:13,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:04:13,430 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:04:13,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:04:13,430 INFO L82 PathProgramCache]: Analyzing trace with hash 722300593, now seen corresponding path program 1 times [2020-10-14 04:04:13,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:04:13,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [743492289] [2020-10-14 04:04:13,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:04:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:13,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:13,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:13,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:14,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:18,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:18,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-14 04:04:18,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:04:18,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 04:04:18,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:18,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:18,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:04:18,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 04:04:18,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 04:04:18,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 04:04:18,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:04:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:18,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:18,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:18,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:04:18,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:18,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:04:18,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:18,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:18,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:04:18,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:04:18,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:04:18,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:04:18,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:04:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:18,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:18,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:18,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:04:18,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:18,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 04:04:18,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:18,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:18,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:04:18,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:04:18,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 04:04:18,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:04:18,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 04:04:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:18,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:18,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:18,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 04:04:18,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:18,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 04:04:18,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:18,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:04:18,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:04:18,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 04:04:18,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:04:18,993 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:04:18,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [743492289] [2020-10-14 04:04:18,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:04:18,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:04:18,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631284021] [2020-10-14 04:04:18,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:04:18,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:04:18,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:04:18,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:04:18,998 INFO L87 Difference]: Start difference. First operand 19249 states and 26892 transitions. Second operand 7 states. [2020-10-14 04:04:38,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:04:38,957 INFO L93 Difference]: Finished difference Result 37425 states and 53409 transitions. [2020-10-14 04:04:38,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:04:38,962 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-10-14 04:04:38,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:04:39,008 INFO L225 Difference]: With dead ends: 37425 [2020-10-14 04:04:39,009 INFO L226 Difference]: Without dead ends: 15896 [2020-10-14 04:04:39,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:04:39,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15896 states. [2020-10-14 04:04:39,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15896 to 14540. [2020-10-14 04:04:39,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14540 states. [2020-10-14 04:04:39,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14540 states to 14540 states and 18086 transitions. [2020-10-14 04:04:39,493 INFO L78 Accepts]: Start accepts. Automaton has 14540 states and 18086 transitions. Word has length 181 [2020-10-14 04:04:39,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:04:39,493 INFO L479 AbstractCegarLoop]: Abstraction has 14540 states and 18086 transitions. [2020-10-14 04:04:39,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:04:39,493 INFO L276 IsEmpty]: Start isEmpty. Operand 14540 states and 18086 transitions. [2020-10-14 04:04:39,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-14 04:04:39,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:04:39,496 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:04:39,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:04:39,496 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:04:39,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:04:39,497 INFO L82 PathProgramCache]: Analyzing trace with hash 619450264, now seen corresponding path program 1 times [2020-10-14 04:04:39,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:04:39,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [374642294] [2020-10-14 04:04:39,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:04:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:39,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:39,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:40,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:41,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:41,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-14 04:04:41,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:04:41,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1815 [2020-10-14 04:04:41,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:41,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:41,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:04:41,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-14 04:04:41,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 04:04:41,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:04:41,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:04:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:41,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:41,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:41,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:04:41,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:41,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:04:41,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:41,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:04:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:04:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:04:41,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:04:41,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:04:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:41,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:41,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:41,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:04:41,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:41,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 04:04:41,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:41,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:04:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:04:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 04:04:41,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:04:41,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:04:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:41,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:41,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:41,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:04:41,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:04:41,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 04:04:41,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:41,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:41,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:04:41,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:04:41,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 04:04:41,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:04:42,019 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:04:42,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [374642294] [2020-10-14 04:04:42,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:04:42,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:04:42,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386916471] [2020-10-14 04:04:42,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:04:42,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:04:42,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:04:42,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:04:42,028 INFO L87 Difference]: Start difference. First operand 14540 states and 18086 transitions. Second operand 7 states. [2020-10-14 04:04:58,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:04:58,052 INFO L93 Difference]: Finished difference Result 34569 states and 43296 transitions. [2020-10-14 04:04:58,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:04:58,060 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 197 [2020-10-14 04:04:58,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:04:58,115 INFO L225 Difference]: With dead ends: 34569 [2020-10-14 04:04:58,115 INFO L226 Difference]: Without dead ends: 19575 [2020-10-14 04:04:58,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:04:58,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19575 states. [2020-10-14 04:04:58,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19575 to 19516. [2020-10-14 04:04:58,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19516 states. [2020-10-14 04:04:58,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19516 states to 19516 states and 23862 transitions. [2020-10-14 04:04:58,492 INFO L78 Accepts]: Start accepts. Automaton has 19516 states and 23862 transitions. Word has length 197 [2020-10-14 04:04:58,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:04:58,493 INFO L479 AbstractCegarLoop]: Abstraction has 19516 states and 23862 transitions. [2020-10-14 04:04:58,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:04:58,493 INFO L276 IsEmpty]: Start isEmpty. Operand 19516 states and 23862 transitions. [2020-10-14 04:04:58,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-14 04:04:58,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:04:58,500 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:04:58,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:04:58,500 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:04:58,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:04:58,501 INFO L82 PathProgramCache]: Analyzing trace with hash -211928867, now seen corresponding path program 1 times [2020-10-14 04:04:58,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:04:58,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231728800] [2020-10-14 04:04:58,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:04:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:04:58,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:58,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:04:59,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:04:59,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 04:04:59,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:04:59,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1384 [2020-10-14 04:04:59,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:04:59,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:04:59,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:04:59,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-14 04:04:59,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 04:04:59,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:05:00,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:05:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:00,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:00,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:00,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:05:00,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:00,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:05:00,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:00,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:00,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:05:00,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:00,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:05:00,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:00,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:05:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:00,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:00,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:00,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:05:00,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:00,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 04:05:00,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:00,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:00,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:05:00,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:00,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:05:00,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:00,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:05:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:00,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:00,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:00,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 04:05:00,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:00,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 04:05:00,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:00,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:00,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:05:00,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:00,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 04:05:00,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:00,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-14 04:05:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:00,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:00,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:00,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 04:05:00,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:00,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 04:05:00,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:00,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:00,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:05:00,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:05:00,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 04:05:00,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 217 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-14 04:05:00,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231728800] [2020-10-14 04:05:00,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:05:00,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:05:00,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434339809] [2020-10-14 04:05:00,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:05:00,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:05:00,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:05:00,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:05:00,631 INFO L87 Difference]: Start difference. First operand 19516 states and 23862 transitions. Second operand 7 states. [2020-10-14 04:05:16,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:05:16,214 INFO L93 Difference]: Finished difference Result 39078 states and 47771 transitions. [2020-10-14 04:05:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:05:16,217 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 284 [2020-10-14 04:05:16,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:05:16,286 INFO L225 Difference]: With dead ends: 39078 [2020-10-14 04:05:16,286 INFO L226 Difference]: Without dead ends: 19568 [2020-10-14 04:05:16,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:05:16,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19568 states. [2020-10-14 04:05:16,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19568 to 19091. [2020-10-14 04:05:16,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19091 states. [2020-10-14 04:05:16,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19091 states to 19091 states and 23127 transitions. [2020-10-14 04:05:16,782 INFO L78 Accepts]: Start accepts. Automaton has 19091 states and 23127 transitions. Word has length 284 [2020-10-14 04:05:16,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:05:16,783 INFO L479 AbstractCegarLoop]: Abstraction has 19091 states and 23127 transitions. [2020-10-14 04:05:16,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:05:16,783 INFO L276 IsEmpty]: Start isEmpty. Operand 19091 states and 23127 transitions. [2020-10-14 04:05:16,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-14 04:05:16,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:05:16,793 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:05:16,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:05:16,793 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:05:16,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:05:16,794 INFO L82 PathProgramCache]: Analyzing trace with hash 859930874, now seen corresponding path program 1 times [2020-10-14 04:05:16,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:05:16,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53421956] [2020-10-14 04:05:16,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:05:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:16,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:17,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:18,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:18,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-14 04:05:18,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:05:18,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1455 [2020-10-14 04:05:18,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:18,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:05:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-14 04:05:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 04:05:18,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:05:18,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:05:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:18,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:18,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:18,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:05:18,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:18,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:05:18,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:18,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:18,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:05:18,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:18,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:05:18,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:18,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:05:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:18,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:18,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:18,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:05:18,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:18,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 04:05:18,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:18,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:05:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 04:05:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:18,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:05:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:18,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:19,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:19,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 04:05:19,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:19,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-14 04:05:19,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:19,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:19,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:05:19,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:05:19,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 04:05:19,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:19,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-14 04:05:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:19,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:19,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:19,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:05:19,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:19,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 04:05:19,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:19,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:19,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:05:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 04:05:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:05:19,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:19,787 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 133 proven. 87 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-14 04:05:19,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53421956] [2020-10-14 04:05:19,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:05:19,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:05:19,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638606306] [2020-10-14 04:05:19,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:05:19,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:05:19,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:05:19,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:05:19,792 INFO L87 Difference]: Start difference. First operand 19091 states and 23127 transitions. Second operand 7 states. [2020-10-14 04:05:37,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:05:37,537 INFO L93 Difference]: Finished difference Result 41319 states and 49773 transitions. [2020-10-14 04:05:37,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:05:37,541 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 306 [2020-10-14 04:05:37,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:05:37,611 INFO L225 Difference]: With dead ends: 41319 [2020-10-14 04:05:37,611 INFO L226 Difference]: Without dead ends: 22234 [2020-10-14 04:05:37,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:05:37,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22234 states. [2020-10-14 04:05:38,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22234 to 21748. [2020-10-14 04:05:38,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21748 states. [2020-10-14 04:05:38,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21748 states to 21748 states and 26084 transitions. [2020-10-14 04:05:38,109 INFO L78 Accepts]: Start accepts. Automaton has 21748 states and 26084 transitions. Word has length 306 [2020-10-14 04:05:38,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:05:38,110 INFO L479 AbstractCegarLoop]: Abstraction has 21748 states and 26084 transitions. [2020-10-14 04:05:38,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:05:38,110 INFO L276 IsEmpty]: Start isEmpty. Operand 21748 states and 26084 transitions. [2020-10-14 04:05:38,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-10-14 04:05:38,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:05:38,123 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:05:38,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:05:38,124 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:05:38,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:05:38,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1374020236, now seen corresponding path program 1 times [2020-10-14 04:05:38,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:05:38,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702154212] [2020-10-14 04:05:38,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:05:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:38,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:38,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:40,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:40,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 331 [2020-10-14 04:05:40,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:05:40,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2427 [2020-10-14 04:05:40,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:40,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:40,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:05:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 309 [2020-10-14 04:05:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 04:05:40,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:40,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:05:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:40,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:40,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:40,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:05:40,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:40,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:05:40,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:40,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:40,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:05:40,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:40,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:05:40,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:05:40,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:05:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:40,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:40,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:40,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:05:40,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:40,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 04:05:40,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:40,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:40,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:05:40,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:40,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:05:40,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:40,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:05:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:41,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:41,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:05:41,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-14 04:05:41,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:05:41,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-14 04:05:41,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:05:41,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:05:41,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:05:41,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:05:41,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 205 [2020-10-14 04:05:41,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:05:41,557 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 04:05:41,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702154212] [2020-10-14 04:05:41,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:05:41,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:05:41,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85237350] [2020-10-14 04:05:41,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:05:41,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:05:41,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:05:41,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:05:41,560 INFO L87 Difference]: Start difference. First operand 21748 states and 26084 transitions. Second operand 5 states. [2020-10-14 04:05:57,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:05:57,175 INFO L93 Difference]: Finished difference Result 48860 states and 59129 transitions. [2020-10-14 04:05:57,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:05:57,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 319 [2020-10-14 04:05:57,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:05:57,249 INFO L225 Difference]: With dead ends: 48860 [2020-10-14 04:05:57,249 INFO L226 Difference]: Without dead ends: 27118 [2020-10-14 04:05:57,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:05:57,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27118 states. [2020-10-14 04:05:57,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27118 to 25338. [2020-10-14 04:05:57,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25338 states. [2020-10-14 04:05:57,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25338 states to 25338 states and 30523 transitions. [2020-10-14 04:05:57,736 INFO L78 Accepts]: Start accepts. Automaton has 25338 states and 30523 transitions. Word has length 319 [2020-10-14 04:05:57,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:05:57,736 INFO L479 AbstractCegarLoop]: Abstraction has 25338 states and 30523 transitions. [2020-10-14 04:05:57,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:05:57,736 INFO L276 IsEmpty]: Start isEmpty. Operand 25338 states and 30523 transitions. [2020-10-14 04:05:57,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-14 04:05:57,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:05:57,742 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-14 04:05:57,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:05:57,743 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:05:57,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:05:57,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1399020175, now seen corresponding path program 1 times [2020-10-14 04:05:57,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:05:57,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253046269] [2020-10-14 04:05:57,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:05:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:05:58,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:58,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:05:59,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:00,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:00,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-14 04:06:00,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:06:00,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2601 [2020-10-14 04:06:00,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:00,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:00,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:06:00,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 240 [2020-10-14 04:06:00,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 04:06:00,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:06:00,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:06:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:00,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:00,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:00,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:06:00,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:00,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:06:00,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:00,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:06:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:06:00,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:06:00,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:06:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:00,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:00,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:00,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:06:00,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:00,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 04:06:00,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:00,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:00,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:06:00,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:00,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:06:00,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:06:00,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 04:06:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:00,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:00,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:00,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 04:06:00,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:00,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 04:06:00,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:00,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:00,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:06:00,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:06:00,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 04:06:00,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:06:00,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-14 04:06:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:06:00,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:06:00,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:06:00,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:06:00,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:06:00,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 04:06:00,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:06:00,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:06:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:06:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:06:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 04:06:00,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0