/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:46:48,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:46:48,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:46:48,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:46:48,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:46:48,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:46:48,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:46:48,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:46:48,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:46:48,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:46:48,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:46:48,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:46:48,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:46:48,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:46:48,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:46:48,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:46:48,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:46:48,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:46:48,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:46:48,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:46:48,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:46:48,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:46:48,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:46:48,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:46:48,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:46:48,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:46:48,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:46:48,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:46:48,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:46:48,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:46:48,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:46:48,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:46:48,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:46:48,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:46:48,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:46:48,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:46:48,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:46:48,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:46:48,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:46:48,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:46:48,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:46:48,315 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 03:46:48,347 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:46:48,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:46:48,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:46:48,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:46:48,349 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:46:48,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:46:48,350 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:46:48,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:46:48,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:46:48,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:46:48,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:46:48,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:46:48,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:46:48,353 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:46:48,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:46:48,353 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:46:48,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:46:48,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:46:48,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:46:48,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:46:48,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:46:48,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:46:48,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:46:48,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:46:48,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:46:48,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:46:48,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:46:48,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:46:48,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:46:48,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 03:46:48,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:46:48,670 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:46:48,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:46:48,676 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:46:48,676 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:46:48,677 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label35.c [2020-10-14 03:46:48,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1dfaa6185/517ea073cdb4468a8671c61c7cdbdcb5/FLAG3a7bdeb3c [2020-10-14 03:46:49,391 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:46:49,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label35.c [2020-10-14 03:46:49,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1dfaa6185/517ea073cdb4468a8671c61c7cdbdcb5/FLAG3a7bdeb3c [2020-10-14 03:46:49,612 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1dfaa6185/517ea073cdb4468a8671c61c7cdbdcb5 [2020-10-14 03:46:49,622 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:46:49,623 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:46:49,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:46:49,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:46:49,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:46:49,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:46:49" (1/1) ... [2020-10-14 03:46:49,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a1d4b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:49, skipping insertion in model container [2020-10-14 03:46:49,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:46:49" (1/1) ... [2020-10-14 03:46:49,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:46:49,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:46:50,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:46:50,504 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:46:50,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:46:50,734 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:46:50,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:50 WrapperNode [2020-10-14 03:46:50,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:46:50,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:46:50,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:46:50,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:46:50,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:50" (1/1) ... [2020-10-14 03:46:50,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:50" (1/1) ... [2020-10-14 03:46:50,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:50" (1/1) ... [2020-10-14 03:46:50,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:50" (1/1) ... [2020-10-14 03:46:50,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:50" (1/1) ... [2020-10-14 03:46:50,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:50" (1/1) ... [2020-10-14 03:46:50,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:50" (1/1) ... [2020-10-14 03:46:50,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:46:50,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:46:50,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:46:50,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:46:50,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:46:51,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:46:51,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:46:51,005 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:46:51,006 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:46:51,006 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:46:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:46:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:46:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:46:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:46:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:46:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:46:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:46:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:46:53,174 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:46:53,175 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:46:53,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:46:53 BoogieIcfgContainer [2020-10-14 03:46:53,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:46:53,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:46:53,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:46:53,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:46:53,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:46:49" (1/3) ... [2020-10-14 03:46:53,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1542a025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:46:53, skipping insertion in model container [2020-10-14 03:46:53,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:50" (2/3) ... [2020-10-14 03:46:53,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1542a025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:46:53, skipping insertion in model container [2020-10-14 03:46:53,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:46:53" (3/3) ... [2020-10-14 03:46:53,191 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label35.c [2020-10-14 03:46:53,201 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:46:53,209 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:46:53,224 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:46:53,251 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:46:53,251 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:46:53,251 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:46:53,252 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:46:53,252 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:46:53,252 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:46:53,252 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:46:53,252 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:46:53,278 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:46:53,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-14 03:46:53,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:53,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:53,287 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:53,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:53,293 INFO L82 PathProgramCache]: Analyzing trace with hash 338381554, now seen corresponding path program 1 times [2020-10-14 03:46:53,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:53,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228850355] [2020-10-14 03:46:53,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:53,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:53,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:53,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-14 03:46:53,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:53,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-14 03:46:53,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:53,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:46:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:46:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 03:46:53,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 34 [2020-10-14 03:46:53,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:53,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:53,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:53,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:53,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:53,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 03:46:53,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:53,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:53,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:53,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:53,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:46:53,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:53,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:46:53,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228850355] [2020-10-14 03:46:53,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:46:53,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:46:53,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748602993] [2020-10-14 03:46:54,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:46:54,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:54,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:46:54,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:46:54,026 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:46:57,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:57,320 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-14 03:46:57,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:46:57,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-14 03:46:57,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:57,342 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:46:57,342 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:46:57,354 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 03:46:57,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:46:57,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-14 03:46:57,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-14 03:46:57,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-14 03:46:57,452 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 47 [2020-10-14 03:46:57,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:57,453 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-14 03:46:57,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:46:57,453 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-14 03:46:57,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-14 03:46:57,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:57,459 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:57,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:46:57,460 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:57,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:57,460 INFO L82 PathProgramCache]: Analyzing trace with hash 2059459070, now seen corresponding path program 1 times [2020-10-14 03:46:57,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:57,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251497847] [2020-10-14 03:46:57,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:57,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:57,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:58,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:58,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 03:46:58,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:46:58,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 845 [2020-10-14 03:46:58,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:58,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:58,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:58,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:46:58,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 03:46:58,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:46:58,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:58,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:58,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:58,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:58,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:58,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 03:46:58,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:58,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:58,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:58,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:58,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:58,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:58,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:58,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:58,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:58,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:46:58,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:58,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 03:46:58,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:58,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:58,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:58,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:58,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:46:58,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:58,623 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:46:58,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251497847] [2020-10-14 03:46:58,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:58,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:46:58,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601142069] [2020-10-14 03:46:58,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:46:58,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:58,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:46:58,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:46:58,628 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 5 states. [2020-10-14 03:47:01,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:01,835 INFO L93 Difference]: Finished difference Result 1724 states and 2649 transitions. [2020-10-14 03:47:01,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:47:01,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2020-10-14 03:47:01,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:01,843 INFO L225 Difference]: With dead ends: 1724 [2020-10-14 03:47:01,844 INFO L226 Difference]: Without dead ends: 1038 [2020-10-14 03:47:01,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:47:01,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-14 03:47:01,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1034. [2020-10-14 03:47:01,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2020-10-14 03:47:01,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1429 transitions. [2020-10-14 03:47:01,889 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1429 transitions. Word has length 123 [2020-10-14 03:47:01,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:01,890 INFO L479 AbstractCegarLoop]: Abstraction has 1034 states and 1429 transitions. [2020-10-14 03:47:01,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:47:01,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1429 transitions. [2020-10-14 03:47:01,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-14 03:47:01,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:01,896 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:01,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:47:01,897 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:01,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:01,897 INFO L82 PathProgramCache]: Analyzing trace with hash 751326551, now seen corresponding path program 1 times [2020-10-14 03:47:01,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:01,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556024924] [2020-10-14 03:47:01,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:01,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:02,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:03,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:03,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-14 03:47:03,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:47:03,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1589 [2020-10-14 03:47:03,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:03,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:03,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:03,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-14 03:47:03,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 03:47:03,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:03,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:03,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:03,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:03,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:03,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:03,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:03,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:03,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:03,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:03,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:03,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:03,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:03,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:03,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:03,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:03,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:47:03,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:03,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 03:47:03,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:03,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:03,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:03,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:03,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 03:47:03,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:03,836 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:47:03,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556024924] [2020-10-14 03:47:03,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:03,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:47:03,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657032975] [2020-10-14 03:47:03,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:47:03,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:03,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:47:03,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:47:03,839 INFO L87 Difference]: Start difference. First operand 1034 states and 1429 transitions. Second operand 5 states. [2020-10-14 03:47:07,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:07,093 INFO L93 Difference]: Finished difference Result 2408 states and 3480 transitions. [2020-10-14 03:47:07,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:47:07,094 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 176 [2020-10-14 03:47:07,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:07,102 INFO L225 Difference]: With dead ends: 2408 [2020-10-14 03:47:07,103 INFO L226 Difference]: Without dead ends: 1380 [2020-10-14 03:47:07,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:47:07,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-10-14 03:47:07,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1376. [2020-10-14 03:47:07,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2020-10-14 03:47:07,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1849 transitions. [2020-10-14 03:47:07,143 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1849 transitions. Word has length 176 [2020-10-14 03:47:07,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:07,144 INFO L479 AbstractCegarLoop]: Abstraction has 1376 states and 1849 transitions. [2020-10-14 03:47:07,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:47:07,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1849 transitions. [2020-10-14 03:47:07,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-14 03:47:07,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:07,148 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:47:07,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:47:07,148 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:07,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:07,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1832188306, now seen corresponding path program 1 times [2020-10-14 03:47:07,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:07,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438213002] [2020-10-14 03:47:07,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:07,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:07,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:07,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:08,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:09,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:11,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:11,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-14 03:47:11,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:11,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4185 [2020-10-14 03:47:11,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:11,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:11,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:11,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:47:11,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:47:11,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:11,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:11,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:11,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:11,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:11,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:11,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:11,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:11,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:11,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:11,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:11,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:11,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:11,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:11,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:11,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:11,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:47:11,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:11,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:47:11,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:11,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:47:11,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:11,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 03:47:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:11,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:11,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:11,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:11,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:11,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-14 03:47:11,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:11,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:11,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:11,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:11,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:47:11,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:11,791 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:47:11,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438213002] [2020-10-14 03:47:11,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:11,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:11,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237148181] [2020-10-14 03:47:11,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:11,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:11,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:11,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:11,796 INFO L87 Difference]: Start difference. First operand 1376 states and 1849 transitions. Second operand 7 states. [2020-10-14 03:47:15,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:15,390 INFO L93 Difference]: Finished difference Result 3460 states and 4779 transitions. [2020-10-14 03:47:15,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:47:15,391 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 233 [2020-10-14 03:47:15,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:15,401 INFO L225 Difference]: With dead ends: 3460 [2020-10-14 03:47:15,402 INFO L226 Difference]: Without dead ends: 1739 [2020-10-14 03:47:15,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:15,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2020-10-14 03:47:15,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1725. [2020-10-14 03:47:15,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1725 states. [2020-10-14 03:47:15,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 1927 transitions. [2020-10-14 03:47:15,454 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 1927 transitions. Word has length 233 [2020-10-14 03:47:15,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:15,454 INFO L479 AbstractCegarLoop]: Abstraction has 1725 states and 1927 transitions. [2020-10-14 03:47:15,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:15,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 1927 transitions. [2020-10-14 03:47:15,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2020-10-14 03:47:15,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:15,462 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:15,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:47:15,463 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:15,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:15,463 INFO L82 PathProgramCache]: Analyzing trace with hash -118713722, now seen corresponding path program 1 times [2020-10-14 03:47:15,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:15,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137559403] [2020-10-14 03:47:15,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:15,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:15,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:15,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:19,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:19,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:20,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:20,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 415 [2020-10-14 03:47:20,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:20,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 03:47:20,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:20,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:20,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:20,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-14 03:47:20,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:47:20,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:20,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:20,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:20,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:20,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:20,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:20,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:20,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:20,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:20,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:20,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:20,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:20,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:20,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:20,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:20,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:20,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:47:20,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:20,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 03:47:20,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:20,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:20,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:20,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:20,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 03:47:20,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:20,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 03:47:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:20,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:21,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:21,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:47:21,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:21,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-14 03:47:21,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:21,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:21,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:21,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:21,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:47:21,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:21,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-14 03:47:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:21,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:21,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:21,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:21,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:21,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:47:21,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:21,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:21,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:21,463 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 236 proven. 109 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:47:21,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137559403] [2020-10-14 03:47:21,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:21,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:21,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712053226] [2020-10-14 03:47:21,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:21,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:21,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:21,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:21,467 INFO L87 Difference]: Start difference. First operand 1725 states and 1927 transitions. Second operand 7 states. [2020-10-14 03:47:24,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:24,095 INFO L93 Difference]: Finished difference Result 5194 states and 5907 transitions. [2020-10-14 03:47:24,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:24,099 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 401 [2020-10-14 03:47:24,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:24,116 INFO L225 Difference]: With dead ends: 5194 [2020-10-14 03:47:24,116 INFO L226 Difference]: Without dead ends: 3475 [2020-10-14 03:47:24,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:24,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3475 states. [2020-10-14 03:47:24,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3475 to 3445. [2020-10-14 03:47:24,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3445 states. [2020-10-14 03:47:24,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 3838 transitions. [2020-10-14 03:47:24,227 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 3838 transitions. Word has length 401 [2020-10-14 03:47:24,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:24,227 INFO L479 AbstractCegarLoop]: Abstraction has 3445 states and 3838 transitions. [2020-10-14 03:47:24,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:24,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 3838 transitions. [2020-10-14 03:47:24,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2020-10-14 03:47:24,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:24,255 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:47:24,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:47:24,255 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:24,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1010277694, now seen corresponding path program 1 times [2020-10-14 03:47:24,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:24,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344822919] [2020-10-14 03:47:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:24,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:24,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:24,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:24,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:26,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 897 [2020-10-14 03:47:29,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:29,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 03:47:29,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 417 [2020-10-14 03:47:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:47:29,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:29,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:29,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:29,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:29,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:29,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:29,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:29,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:29,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:29,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:29,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 03:47:29,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:29,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:47:29,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:29,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:29,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:29,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:29,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 03:47:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:29,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:47:29,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:29,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:47:29,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:29,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:29,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:29,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:29,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-10-14 03:47:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:29,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:47:29,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:29,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:47:29,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:29,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:29,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:47:29,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:29,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2020-10-14 03:47:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:29,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:47:29,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:29,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 03:47:29,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:29,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:29,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 03:47:29,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:29,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 553 [2020-10-14 03:47:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:30,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:30,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:30,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:30,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:30,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:47:30,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:30,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:30,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:30,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:30,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:30,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:30,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2020-10-14 03:47:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:30,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:30,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:30,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:47:30,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:30,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 03:47:30,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:30,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:30,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:30,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:47:30,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:30,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:30,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 591 proven. 248 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2020-10-14 03:47:30,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344822919] [2020-10-14 03:47:30,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:30,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:30,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208879293] [2020-10-14 03:47:30,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:30,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:30,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:30,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:30,690 INFO L87 Difference]: Start difference. First operand 3445 states and 3838 transitions. Second operand 7 states. [2020-10-14 03:47:33,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:33,604 INFO L93 Difference]: Finished difference Result 8726 states and 10140 transitions. [2020-10-14 03:47:33,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:47:33,604 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 877 [2020-10-14 03:47:33,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:33,634 INFO L225 Difference]: With dead ends: 8726 [2020-10-14 03:47:33,635 INFO L226 Difference]: Without dead ends: 5287 [2020-10-14 03:47:33,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:33,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5287 states. [2020-10-14 03:47:33,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5287 to 5158. [2020-10-14 03:47:33,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5158 states. [2020-10-14 03:47:33,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5158 states to 5158 states and 5661 transitions. [2020-10-14 03:47:33,784 INFO L78 Accepts]: Start accepts. Automaton has 5158 states and 5661 transitions. Word has length 877 [2020-10-14 03:47:33,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:33,785 INFO L479 AbstractCegarLoop]: Abstraction has 5158 states and 5661 transitions. [2020-10-14 03:47:33,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:33,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5158 states and 5661 transitions. [2020-10-14 03:47:33,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2020-10-14 03:47:33,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:33,815 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:33,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:47:33,816 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:33,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:33,816 INFO L82 PathProgramCache]: Analyzing trace with hash 49309315, now seen corresponding path program 1 times [2020-10-14 03:47:33,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:33,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [788899986] [2020-10-14 03:47:33,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:33,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:34,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:34,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:34,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:38,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:38,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 906 [2020-10-14 03:47:38,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:38,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-14 03:47:38,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:38,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:38,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:38,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-14 03:47:38,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-14 03:47:38,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:39,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:39,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:47:39,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:39,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:39,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:39,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:39,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 03:47:39,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 03:47:39,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-14 03:47:39,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:39,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 03:47:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:47:39,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 03:47:39,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:39,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:39,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-14 03:47:39,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:39,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2020-10-14 03:47:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:47:39,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:47:39,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:39,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:47:39,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:39,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:39,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2020-10-14 03:47:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:39,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:47:39,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:39,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:39,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:39,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:39,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 674 [2020-10-14 03:47:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:47:39,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:47:39,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:47:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:39,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:40,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1611 backedges. 404 proven. 420 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2020-10-14 03:47:40,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [788899986] [2020-10-14 03:47:40,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:40,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:40,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644118882] [2020-10-14 03:47:40,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:40,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:40,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:40,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:40,066 INFO L87 Difference]: Start difference. First operand 5158 states and 5661 transitions. Second operand 7 states. [2020-10-14 03:47:42,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:42,448 INFO L93 Difference]: Finished difference Result 12041 states and 13327 transitions. [2020-10-14 03:47:42,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:47:42,449 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 888 [2020-10-14 03:47:42,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:42,476 INFO L225 Difference]: With dead ends: 12041 [2020-10-14 03:47:42,476 INFO L226 Difference]: Without dead ends: 6889 [2020-10-14 03:47:42,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:47:42,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6889 states. [2020-10-14 03:47:42,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6889 to 6873. [2020-10-14 03:47:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6873 states. [2020-10-14 03:47:42,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6873 states to 6873 states and 7506 transitions. [2020-10-14 03:47:42,622 INFO L78 Accepts]: Start accepts. Automaton has 6873 states and 7506 transitions. Word has length 888 [2020-10-14 03:47:42,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:42,623 INFO L479 AbstractCegarLoop]: Abstraction has 6873 states and 7506 transitions. [2020-10-14 03:47:42,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:42,623 INFO L276 IsEmpty]: Start isEmpty. Operand 6873 states and 7506 transitions. [2020-10-14 03:47:42,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 937 [2020-10-14 03:47:42,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:42,645 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:47:42,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:47:42,646 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:42,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:42,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1130710041, now seen corresponding path program 1 times [2020-10-14 03:47:42,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:42,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022622743] [2020-10-14 03:47:42,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:42,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:42,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:43,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:43,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:47,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:47,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 956 [2020-10-14 03:47:47,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:47,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-14 03:47:47,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:47,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:47,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:47,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:47:47,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:47:47,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:47,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:47,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:47,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:47,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:47,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:47,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:47,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:47,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:47,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:47,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:47,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:47,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:47,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:47,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:48,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:48,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:47:48,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:48,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:47:48,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:48,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:48,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:48,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:48,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:48,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:48,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:47:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:48,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:48,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:48,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:47:48,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:48,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:47:48,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:48,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:48,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:48,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:48,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:47:48,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:48,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:47:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:48,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:48,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:48,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:47:48,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:48,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 03:47:48,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:48,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:48,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:48,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:48,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:47:48,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:48,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:47:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:48,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:48,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:48,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:47:48,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:48,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:47:48,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:48,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:48,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:48,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:47:48,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:48,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:48,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-10-14 03:47:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:48,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:48,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:48,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:48,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:48,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:47:48,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:48,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:48,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:48,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-14 03:47:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:48,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:48,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:48,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:47:48,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:48,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:47:48,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:48,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:48,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:48,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:47:48,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:48,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:48,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1914 backedges. 476 proven. 389 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2020-10-14 03:47:48,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022622743] [2020-10-14 03:47:48,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:48,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:48,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979302853] [2020-10-14 03:47:48,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:48,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:48,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:48,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:48,864 INFO L87 Difference]: Start difference. First operand 6873 states and 7506 transitions. Second operand 7 states. [2020-10-14 03:47:51,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:51,997 INFO L93 Difference]: Finished difference Result 17977 states and 20516 transitions. [2020-10-14 03:47:51,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:51,998 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 936 [2020-10-14 03:47:51,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:52,053 INFO L225 Difference]: With dead ends: 17977 [2020-10-14 03:47:52,054 INFO L226 Difference]: Without dead ends: 11110 [2020-10-14 03:47:52,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:47:52,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11110 states. [2020-10-14 03:47:52,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11110 to 10966. [2020-10-14 03:47:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10966 states. [2020-10-14 03:47:52,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10966 states to 10966 states and 11988 transitions. [2020-10-14 03:47:52,310 INFO L78 Accepts]: Start accepts. Automaton has 10966 states and 11988 transitions. Word has length 936 [2020-10-14 03:47:52,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:52,311 INFO L479 AbstractCegarLoop]: Abstraction has 10966 states and 11988 transitions. [2020-10-14 03:47:52,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:52,311 INFO L276 IsEmpty]: Start isEmpty. Operand 10966 states and 11988 transitions. [2020-10-14 03:47:52,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 938 [2020-10-14 03:47:52,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:52,340 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:47:52,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:47:52,341 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:52,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:52,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1812064502, now seen corresponding path program 1 times [2020-10-14 03:47:52,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:52,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604507077] [2020-10-14 03:47:52,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:52,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:52,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:53,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:53,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:54,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 957 [2020-10-14 03:47:57,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:57,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 03:47:57,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:57,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:57,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:57,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:47:57,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:47:57,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:57,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:57,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:57,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:57,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:57,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:57,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:57,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:57,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:57,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:57,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:47:57,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:57,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 03:47:57,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:57,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:57,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:57,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:57,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:57,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:57,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:47:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:57,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:57,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:47:57,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:57,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:47:57,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:57,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:57,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:57,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:57,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:47:57,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:57,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:47:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:58,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:58,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:47:58,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:58,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 03:47:58,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:58,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:58,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:58,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:58,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:47:58,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:58,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2020-10-14 03:47:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:58,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:58,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:58,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:47:58,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:58,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:47:58,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:58,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:47:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:58,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:58,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2020-10-14 03:47:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:58,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:58,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:58,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:58,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:58,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:47:58,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:58,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:58,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:58,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:58,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:58,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:58,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 03:47:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:58,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:58,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:58,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:47:58,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:58,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:47:58,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:58,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:58,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:58,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:47:58,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:58,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 477 proven. 389 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2020-10-14 03:47:58,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604507077] [2020-10-14 03:47:58,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:58,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:47:58,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125411127] [2020-10-14 03:47:58,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:47:58,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:58,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:47:58,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:47:58,736 INFO L87 Difference]: Start difference. First operand 10966 states and 11988 transitions. Second operand 8 states. [2020-10-14 03:48:02,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:02,501 INFO L93 Difference]: Finished difference Result 24313 states and 26758 transitions. [2020-10-14 03:48:02,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:48:02,502 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 937 [2020-10-14 03:48:02,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:02,538 INFO L225 Difference]: With dead ends: 24313 [2020-10-14 03:48:02,538 INFO L226 Difference]: Without dead ends: 13353 [2020-10-14 03:48:02,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:48:02,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13353 states. [2020-10-14 03:48:02,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13353 to 13004. [2020-10-14 03:48:02,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13004 states. [2020-10-14 03:48:02,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13004 states to 13004 states and 14075 transitions. [2020-10-14 03:48:02,763 INFO L78 Accepts]: Start accepts. Automaton has 13004 states and 14075 transitions. Word has length 937 [2020-10-14 03:48:02,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:02,764 INFO L479 AbstractCegarLoop]: Abstraction has 13004 states and 14075 transitions. [2020-10-14 03:48:02,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:48:02,764 INFO L276 IsEmpty]: Start isEmpty. Operand 13004 states and 14075 transitions. [2020-10-14 03:48:02,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 940 [2020-10-14 03:48:02,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:02,791 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:02,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:48:02,791 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:02,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:02,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1255355774, now seen corresponding path program 1 times [2020-10-14 03:48:02,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:02,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347286623] [2020-10-14 03:48:02,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:02,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:03,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:03,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:03,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:04,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:07,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:07,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 955 [2020-10-14 03:48:07,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:07,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 03:48:07,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:07,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:07,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:07,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 456 [2020-10-14 03:48:07,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:48:07,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:08,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:08,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:08,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:08,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:08,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:08,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:08,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:08,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:08,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:08,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:08,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:08,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:08,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:08,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:08,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:08,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:08,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:08,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:48:08,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:08,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:08,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:08,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:08,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:08,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:08,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:08,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:08,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:08,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:48:08,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:08,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 03:48:08,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:08,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:08,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:08,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:08,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:48:08,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:08,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-14 03:48:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:08,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:08,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:08,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:08,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:08,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-14 03:48:08,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:08,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:48:08,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:08,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2020-10-14 03:48:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:08,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:08,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:08,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:48:08,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:08,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 03:48:08,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:08,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:08,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:08,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:48:08,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:08,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:09,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 611 proven. 174 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2020-10-14 03:48:09,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347286623] [2020-10-14 03:48:09,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:09,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:09,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786120863] [2020-10-14 03:48:09,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:09,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:09,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:09,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:09,860 INFO L87 Difference]: Start difference. First operand 13004 states and 14075 transitions. Second operand 7 states. [2020-10-14 03:48:13,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:13,065 INFO L93 Difference]: Finished difference Result 26702 states and 28918 transitions. [2020-10-14 03:48:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:13,071 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 939 [2020-10-14 03:48:13,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:13,111 INFO L225 Difference]: With dead ends: 26702 [2020-10-14 03:48:13,111 INFO L226 Difference]: Without dead ends: 13704 [2020-10-14 03:48:13,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:48:13,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13704 states. [2020-10-14 03:48:13,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13704 to 13686. [2020-10-14 03:48:13,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13686 states. [2020-10-14 03:48:13,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13686 states to 13686 states and 14780 transitions. [2020-10-14 03:48:13,339 INFO L78 Accepts]: Start accepts. Automaton has 13686 states and 14780 transitions. Word has length 939 [2020-10-14 03:48:13,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:13,340 INFO L479 AbstractCegarLoop]: Abstraction has 13686 states and 14780 transitions. [2020-10-14 03:48:13,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:13,341 INFO L276 IsEmpty]: Start isEmpty. Operand 13686 states and 14780 transitions. [2020-10-14 03:48:13,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2020-10-14 03:48:13,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:13,370 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:48:13,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:48:13,370 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:13,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:13,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1680552467, now seen corresponding path program 1 times [2020-10-14 03:48:13,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:13,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995359197] [2020-10-14 03:48:13,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:13,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:13,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:14,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:14,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:18,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 982 [2020-10-14 03:48:18,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:48:18,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-14 03:48:18,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:18,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:18,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:18,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 758 [2020-10-14 03:48:18,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-14 03:48:18,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:18,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:18,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:18,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:18,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:18,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:18,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:18,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:18,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:18,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:18,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:18,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:18,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:18,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:18,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:18,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:18,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:48:18,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:18,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:18,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:18,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:18,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:18,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:48:18,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:18,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:48:18,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:18,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:18,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:18,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:18,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:18,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:18,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:48:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:18,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:18,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:48:18,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:18,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:48:18,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:18,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:18,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:18,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:18,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:18,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:18,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-14 03:48:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:18,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:18,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:48:18,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:18,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:48:18,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:18,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:18,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:18,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:18,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:18,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:18,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 638 [2020-10-14 03:48:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:19,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:19,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:19,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:19,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:19,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:48:19,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:19,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:19,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:19,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:19,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:48:19,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:19,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2020-10-14 03:48:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:19,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:19,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:19,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:48:19,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:19,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 03:48:19,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:19,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:19,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:19,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:19,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-14 03:48:19,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:19,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2044 backedges. 911 proven. 2 refuted. 0 times theorem prover too weak. 1131 trivial. 0 not checked. [2020-10-14 03:48:19,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995359197] [2020-10-14 03:48:19,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:19,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:48:19,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542796640] [2020-10-14 03:48:19,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:48:19,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:19,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:48:19,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:48:19,742 INFO L87 Difference]: Start difference. First operand 13686 states and 14780 transitions. Second operand 8 states. [2020-10-14 03:48:23,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:23,527 INFO L93 Difference]: Finished difference Result 29739 states and 32351 transitions. [2020-10-14 03:48:23,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:23,528 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 962 [2020-10-14 03:48:23,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:23,560 INFO L225 Difference]: With dead ends: 29739 [2020-10-14 03:48:23,560 INFO L226 Difference]: Without dead ends: 15032 [2020-10-14 03:48:23,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:48:23,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15032 states. [2020-10-14 03:48:23,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15032 to 14352. [2020-10-14 03:48:23,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14352 states. [2020-10-14 03:48:23,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14352 states to 14352 states and 15353 transitions. [2020-10-14 03:48:23,789 INFO L78 Accepts]: Start accepts. Automaton has 14352 states and 15353 transitions. Word has length 962 [2020-10-14 03:48:23,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:23,791 INFO L479 AbstractCegarLoop]: Abstraction has 14352 states and 15353 transitions. [2020-10-14 03:48:23,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:48:23,791 INFO L276 IsEmpty]: Start isEmpty. Operand 14352 states and 15353 transitions. [2020-10-14 03:48:23,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1083 [2020-10-14 03:48:23,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:23,829 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:23,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:48:23,830 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:23,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:23,831 INFO L82 PathProgramCache]: Analyzing trace with hash 583993091, now seen corresponding path program 1 times [2020-10-14 03:48:23,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:23,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874744009] [2020-10-14 03:48:23,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:24,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:24,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:24,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:24,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:24,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1104 [2020-10-14 03:48:29,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:29,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-14 03:48:29,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:29,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:48:29,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:48:29,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:29,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:29,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:29,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:29,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 03:48:29,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:29,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:48:29,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:48:29,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:29,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:29,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:48:29,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:48:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:48:29,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 03:48:29,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:48:29,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-14 03:48:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:48:29,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:48:29,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:29,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:48:29,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:29,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 638 [2020-10-14 03:48:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:29,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:48:29,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:29,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:29,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:29,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2020-10-14 03:48:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:48:29,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-14 03:48:29,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:29,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:48:29,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:29,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:29,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:29,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:29,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:29,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:48:29,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:29,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:48:29,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:29,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:29,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:30,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2118 backedges. 502 proven. 389 refuted. 0 times theorem prover too weak. 1227 trivial. 0 not checked. [2020-10-14 03:48:30,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874744009] [2020-10-14 03:48:30,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:30,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:30,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994046911] [2020-10-14 03:48:30,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:30,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:30,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:30,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:30,352 INFO L87 Difference]: Start difference. First operand 14352 states and 15353 transitions. Second operand 7 states. [2020-10-14 03:48:33,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:33,093 INFO L93 Difference]: Finished difference Result 33782 states and 36307 transitions. [2020-10-14 03:48:33,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:48:33,094 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1082 [2020-10-14 03:48:33,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:33,130 INFO L225 Difference]: With dead ends: 33782 [2020-10-14 03:48:33,131 INFO L226 Difference]: Without dead ends: 19436 [2020-10-14 03:48:33,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:48:33,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19436 states. [2020-10-14 03:48:33,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19436 to 18752. [2020-10-14 03:48:33,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18752 states. [2020-10-14 03:48:33,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18752 states to 18752 states and 20166 transitions. [2020-10-14 03:48:33,554 INFO L78 Accepts]: Start accepts. Automaton has 18752 states and 20166 transitions. Word has length 1082 [2020-10-14 03:48:33,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:33,555 INFO L479 AbstractCegarLoop]: Abstraction has 18752 states and 20166 transitions. [2020-10-14 03:48:33,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:33,555 INFO L276 IsEmpty]: Start isEmpty. Operand 18752 states and 20166 transitions. [2020-10-14 03:48:33,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1100 [2020-10-14 03:48:33,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:33,588 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-10-14 03:48:33,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:48:33,588 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:33,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:33,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1313638326, now seen corresponding path program 1 times [2020-10-14 03:48:33,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:33,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801436181] [2020-10-14 03:48:33,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:33,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:33,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:34,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:34,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:38,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:38,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1115 [2020-10-14 03:48:38,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:48:38,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 03:48:38,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:38,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:38,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:38,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 537 [2020-10-14 03:48:38,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:48:38,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:38,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:38,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:38,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:38,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:38,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:38,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:38,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:38,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:38,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:38,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:38,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:38,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:38,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:38,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:38,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:38,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:38,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:38,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:48:38,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:38,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:38,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:38,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:38,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:38,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:38,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:39,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:39,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:39,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:48:39,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:39,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 03:48:39,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:39,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:39,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:39,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:39,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:48:39,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:39,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:48:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:39,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:39,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:39,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:39,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:39,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-14 03:48:39,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:39,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:39,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:39,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:39,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:48:39,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:39,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 806 [2020-10-14 03:48:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:39,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:39,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:39,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:48:39,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:39,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 03:48:39,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:39,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:48:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:39,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:40,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1688 backedges. 689 proven. 253 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2020-10-14 03:48:40,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801436181] [2020-10-14 03:48:40,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:40,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:40,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245255151] [2020-10-14 03:48:40,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:40,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:40,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:40,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:40,632 INFO L87 Difference]: Start difference. First operand 18752 states and 20166 transitions. Second operand 7 states. [2020-10-14 03:48:43,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:43,865 INFO L93 Difference]: Finished difference Result 38406 states and 42062 transitions. [2020-10-14 03:48:43,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:48:43,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1099 [2020-10-14 03:48:43,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:43,913 INFO L225 Difference]: With dead ends: 38406 [2020-10-14 03:48:43,914 INFO L226 Difference]: Without dead ends: 19997 [2020-10-14 03:48:43,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:48:43,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19997 states. [2020-10-14 03:48:44,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19997 to 19767. [2020-10-14 03:48:44,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19767 states. [2020-10-14 03:48:44,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19767 states to 19767 states and 21207 transitions. [2020-10-14 03:48:44,257 INFO L78 Accepts]: Start accepts. Automaton has 19767 states and 21207 transitions. Word has length 1099 [2020-10-14 03:48:44,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:44,258 INFO L479 AbstractCegarLoop]: Abstraction has 19767 states and 21207 transitions. [2020-10-14 03:48:44,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:44,258 INFO L276 IsEmpty]: Start isEmpty. Operand 19767 states and 21207 transitions. [2020-10-14 03:48:44,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1137 [2020-10-14 03:48:44,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:44,287 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:44,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:48:44,288 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:44,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:44,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1732267465, now seen corresponding path program 1 times [2020-10-14 03:48:44,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:44,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666323043] [2020-10-14 03:48:44,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:44,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:44,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:44,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1158 [2020-10-14 03:48:49,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:48:49,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 03:48:49,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 448 [2020-10-14 03:48:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:48:49,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:49,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:49,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:49,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:49,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:49,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:49,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:49,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:49,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:49,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:49,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:48:49,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:49,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:49,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:48:49,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:49,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 03:48:49,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:49,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:49,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:49,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:48:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:49,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:48:49,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:49,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:48:49,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:49,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:49,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:48:49,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-14 03:48:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:49,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:49,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:49,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:48:49,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:49,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-14 03:48:49,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:49,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:49,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:49,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:49,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:48:49,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:50,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 692 [2020-10-14 03:48:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:50,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:50,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:50,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:50,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:50,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:48:50,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:50,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:50,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:50,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:50,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:50,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:50,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 802 [2020-10-14 03:48:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:50,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:50,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:50,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:48:50,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:50,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 03:48:50,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:50,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:50,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:50,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:48:50,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:50,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:50,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:50,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:50,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:50,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:48:50,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:50,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:48:50,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:50,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:50,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:50,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:50,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:50,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2123 backedges. 699 proven. 356 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2020-10-14 03:48:51,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666323043] [2020-10-14 03:48:51,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:51,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:51,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367549855] [2020-10-14 03:48:51,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:51,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:51,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:51,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:51,433 INFO L87 Difference]: Start difference. First operand 19767 states and 21207 transitions. Second operand 7 states. [2020-10-14 03:48:54,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:54,322 INFO L93 Difference]: Finished difference Result 39532 states and 42414 transitions. [2020-10-14 03:48:54,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:48:54,322 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1136 [2020-10-14 03:48:54,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:54,357 INFO L225 Difference]: With dead ends: 39532 [2020-10-14 03:48:54,358 INFO L226 Difference]: Without dead ends: 20108 [2020-10-14 03:48:54,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:48:54,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20108 states. [2020-10-14 03:48:54,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20108 to 20106. [2020-10-14 03:48:54,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20106 states. [2020-10-14 03:48:54,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20106 states to 20106 states and 21552 transitions. [2020-10-14 03:48:54,639 INFO L78 Accepts]: Start accepts. Automaton has 20106 states and 21552 transitions. Word has length 1136 [2020-10-14 03:48:54,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:54,640 INFO L479 AbstractCegarLoop]: Abstraction has 20106 states and 21552 transitions. [2020-10-14 03:48:54,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:54,641 INFO L276 IsEmpty]: Start isEmpty. Operand 20106 states and 21552 transitions. [2020-10-14 03:48:54,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1155 [2020-10-14 03:48:54,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:54,668 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-10-14 03:48:54,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:48:54,669 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:54,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:54,669 INFO L82 PathProgramCache]: Analyzing trace with hash 598010671, now seen corresponding path program 1 times [2020-10-14 03:48:54,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:54,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001207455] [2020-10-14 03:48:54,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:54,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:55,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:55,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:55,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:55,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:59,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:59,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1172 [2020-10-14 03:48:59,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:59,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 03:48:59,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:59,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:59,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:59,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 594 [2020-10-14 03:48:59,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:48:59,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:59,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:59,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:59,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:59,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:59,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:59,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:59,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:59,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:59,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:59,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:59,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:59,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:59,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:59,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:59,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:48:59,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:59,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:59,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:00,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:00,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:00,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:00,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:49:00,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:00,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 03:49:00,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:00,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:00,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:00,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:49:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:00,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:00,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:00,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:49:00,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:00,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 03:49:00,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:00,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:00,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:00,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:00,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 03:49:00,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:00,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2020-10-14 03:49:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:00,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:00,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:00,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:49:00,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:00,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-10-14 03:49:00,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:00,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:49:00,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:00,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 861 [2020-10-14 03:49:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:00,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:00,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:00,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:49:00,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:00,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 03:49:00,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:00,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:00,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:00,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:49:00,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:00,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:01,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1993 backedges. 793 proven. 253 refuted. 0 times theorem prover too weak. 947 trivial. 0 not checked. [2020-10-14 03:49:01,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001207455] [2020-10-14 03:49:01,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:01,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:01,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434062759] [2020-10-14 03:49:01,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:01,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:01,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:01,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:01,375 INFO L87 Difference]: Start difference. First operand 20106 states and 21552 transitions. Second operand 7 states. [2020-10-14 03:49:04,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:04,956 INFO L93 Difference]: Finished difference Result 43596 states and 46736 transitions. [2020-10-14 03:49:04,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:49:04,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1154 [2020-10-14 03:49:04,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:04,988 INFO L225 Difference]: With dead ends: 43596 [2020-10-14 03:49:04,988 INFO L226 Difference]: Without dead ends: 23494 [2020-10-14 03:49:05,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:49:05,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23494 states. [2020-10-14 03:49:05,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23494 to 23149. [2020-10-14 03:49:05,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23149 states. [2020-10-14 03:49:05,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23149 states to 23149 states and 24713 transitions. [2020-10-14 03:49:05,292 INFO L78 Accepts]: Start accepts. Automaton has 23149 states and 24713 transitions. Word has length 1154 [2020-10-14 03:49:05,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:05,293 INFO L479 AbstractCegarLoop]: Abstraction has 23149 states and 24713 transitions. [2020-10-14 03:49:05,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:05,293 INFO L276 IsEmpty]: Start isEmpty. Operand 23149 states and 24713 transitions. [2020-10-14 03:49:05,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1214 [2020-10-14 03:49:05,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:05,321 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:05,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:49:05,321 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:05,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:05,322 INFO L82 PathProgramCache]: Analyzing trace with hash 450080566, now seen corresponding path program 1 times [2020-10-14 03:49:05,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:05,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995871265] [2020-10-14 03:49:05,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:05,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:05,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:05,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:06,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:06,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:10,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:10,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1237 [2020-10-14 03:49:10,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:49:10,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5122 [2020-10-14 03:49:10,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:10,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:10,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:10,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:49:10,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:49:10,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:10,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:10,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:10,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:10,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:10,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:10,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:10,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:10,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:10,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:10,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:10,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:10,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:10,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:10,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:10,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:10,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:10,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:10,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 03:49:10,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:10,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:10,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:10,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:10,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:10,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:10,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:49:10,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:10,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:49:10,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:10,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:10,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:10,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:10,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:49:10,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:11,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:49:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:11,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:11,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:11,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:49:11,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:11,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 03:49:11,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:11,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:11,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:11,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:11,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:49:11,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:11,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-14 03:49:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:11,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:11,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:11,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:49:11,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:11,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 03:49:11,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:11,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:11,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:11,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:49:11,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:11,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:11,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:11,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:11,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:11,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:49:11,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:11,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:49:11,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:11,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:11,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:11,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2020-10-14 03:49:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:11,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:11,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:11,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:11,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:11,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:49:11,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:11,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:11,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:11,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:49:11,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:11,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:11,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 879 [2020-10-14 03:49:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:11,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:11,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:11,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:49:11,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:11,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 03:49:11,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:11,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:11,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:11,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:49:11,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:11,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:11,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:11,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:11,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:11,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:49:11,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:11,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:49:11,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:11,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:11,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:11,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:11,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:11,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:12,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2168 backedges. 448 proven. 333 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2020-10-14 03:49:12,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995871265] [2020-10-14 03:49:12,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:12,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:12,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400432960] [2020-10-14 03:49:12,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:12,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:12,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:12,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:12,324 INFO L87 Difference]: Start difference. First operand 23149 states and 24713 transitions. Second operand 7 states. [2020-10-14 03:49:16,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:16,415 INFO L93 Difference]: Finished difference Result 47944 states and 51959 transitions. [2020-10-14 03:49:16,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:49:16,416 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1213 [2020-10-14 03:49:16,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:16,466 INFO L225 Difference]: With dead ends: 47944 [2020-10-14 03:49:16,466 INFO L226 Difference]: Without dead ends: 24795 [2020-10-14 03:49:16,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:49:16,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24795 states. [2020-10-14 03:49:16,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24795 to 24513. [2020-10-14 03:49:16,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24513 states. [2020-10-14 03:49:16,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24513 states to 24513 states and 26070 transitions. [2020-10-14 03:49:16,772 INFO L78 Accepts]: Start accepts. Automaton has 24513 states and 26070 transitions. Word has length 1213 [2020-10-14 03:49:16,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:16,772 INFO L479 AbstractCegarLoop]: Abstraction has 24513 states and 26070 transitions. [2020-10-14 03:49:16,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:16,773 INFO L276 IsEmpty]: Start isEmpty. Operand 24513 states and 26070 transitions. [2020-10-14 03:49:16,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1221 [2020-10-14 03:49:16,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:16,801 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 03:49:16,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:49:16,801 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:16,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:16,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1811717967, now seen corresponding path program 1 times [2020-10-14 03:49:16,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:16,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600158343] [2020-10-14 03:49:16,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:16,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:17,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:17,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:17,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:17,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:21,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:21,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1242 [2020-10-14 03:49:21,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:49:21,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 03:49:21,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:21,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:21,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:21,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:49:21,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:49:21,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:22,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:22,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:22,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:22,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:22,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:22,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:49:22,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:22,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:22,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:22,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:22,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:22,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:22,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:22,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:22,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:22,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:22,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:22,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:49:22,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:22,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:22,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:22,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:22,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:22,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:22,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:22,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:22,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:22,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:49:22,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:22,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:49:22,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:22,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:22,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:22,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:22,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:49:22,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:22,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:49:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:22,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:22,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:22,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:49:22,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:22,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-14 03:49:22,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:22,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:49:22,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:22,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2020-10-14 03:49:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:22,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:22,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:22,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:49:22,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:22,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:49:22,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:22,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:22,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:22,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:49:22,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:22,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:22,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-14 03:49:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:22,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:22,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:22,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:22,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:22,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:49:22,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:22,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:22,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:22,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:49:22,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:22,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:22,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 886 [2020-10-14 03:49:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:22,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:23,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:23,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:49:23,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:23,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 03:49:23,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:23,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:23,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:23,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:49:23,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:23,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:23,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:23,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:23,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:23,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:49:23,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:23,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:23,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:23,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:23,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:23,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:24,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 581 proven. 553 refuted. 0 times theorem prover too weak. 1215 trivial. 0 not checked. [2020-10-14 03:49:24,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600158343] [2020-10-14 03:49:24,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:24,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:24,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573274417] [2020-10-14 03:49:24,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:24,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:24,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:24,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:24,307 INFO L87 Difference]: Start difference. First operand 24513 states and 26070 transitions. Second operand 7 states. [2020-10-14 03:49:27,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:27,652 INFO L93 Difference]: Finished difference Result 48959 states and 52861 transitions. [2020-10-14 03:49:27,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:49:27,653 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1220 [2020-10-14 03:49:27,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:27,693 INFO L225 Difference]: With dead ends: 48959 [2020-10-14 03:49:27,694 INFO L226 Difference]: Without dead ends: 24792 [2020-10-14 03:49:27,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:49:27,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24792 states. [2020-10-14 03:49:27,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24792 to 24171. [2020-10-14 03:49:27,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24171 states. [2020-10-14 03:49:27,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24171 states to 24171 states and 25667 transitions. [2020-10-14 03:49:27,963 INFO L78 Accepts]: Start accepts. Automaton has 24171 states and 25667 transitions. Word has length 1220 [2020-10-14 03:49:27,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:27,963 INFO L479 AbstractCegarLoop]: Abstraction has 24171 states and 25667 transitions. [2020-10-14 03:49:27,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:27,964 INFO L276 IsEmpty]: Start isEmpty. Operand 24171 states and 25667 transitions. [2020-10-14 03:49:27,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1222 [2020-10-14 03:49:27,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:27,990 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 03:49:27,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:49:27,990 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:27,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:27,991 INFO L82 PathProgramCache]: Analyzing trace with hash -500475918, now seen corresponding path program 1 times [2020-10-14 03:49:27,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:27,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281794848] [2020-10-14 03:49:27,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:28,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:28,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:28,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:28,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:30,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:33,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:33,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1243 [2020-10-14 03:49:33,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:49:33,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-14 03:49:33,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:33,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:49:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:49:33,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:33,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:33,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:33,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:33,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:33,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:33,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:33,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:33,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:33,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:33,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:33,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:33,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:33,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:33,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:33,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:33,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:33,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:33,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:49:33,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:33,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:33,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:33,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:33,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:33,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:33,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:33,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:33,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:33,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:49:33,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:33,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 03:49:33,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:33,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:33,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:33,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:33,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:49:33,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:33,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:49:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:33,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:33,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:33,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:49:33,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:33,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-10-14 03:49:33,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:33,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:33,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:49:33,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:34,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2020-10-14 03:49:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:34,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:34,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:34,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:49:34,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:34,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:49:34,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:34,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:34,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:34,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:49:34,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:34,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:34,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 777 [2020-10-14 03:49:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:34,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:34,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:34,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:34,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:34,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:49:34,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:34,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:34,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:34,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:49:34,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:34,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:34,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 887 [2020-10-14 03:49:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:34,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:34,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:34,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:49:34,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:34,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 03:49:34,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:34,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:34,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:34,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:49:34,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:34,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:34,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:34,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:34,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:34,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:49:34,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:34,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:34,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:34,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:34,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:35,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2354 backedges. 582 proven. 553 refuted. 0 times theorem prover too weak. 1219 trivial. 0 not checked. [2020-10-14 03:49:35,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281794848] [2020-10-14 03:49:35,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:35,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:35,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731472703] [2020-10-14 03:49:35,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:35,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:35,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:35,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:35,434 INFO L87 Difference]: Start difference. First operand 24171 states and 25667 transitions. Second operand 7 states. [2020-10-14 03:49:38,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:38,517 INFO L93 Difference]: Finished difference Result 48273 states and 52038 transitions. [2020-10-14 03:49:38,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:49:38,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1221 [2020-10-14 03:49:38,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:38,558 INFO L225 Difference]: With dead ends: 48273 [2020-10-14 03:49:38,558 INFO L226 Difference]: Without dead ends: 24794 [2020-10-14 03:49:38,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:49:38,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24794 states. [2020-10-14 03:49:38,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24794 to 24508. [2020-10-14 03:49:38,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24508 states. [2020-10-14 03:49:38,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24508 states to 24508 states and 26008 transitions. [2020-10-14 03:49:38,881 INFO L78 Accepts]: Start accepts. Automaton has 24508 states and 26008 transitions. Word has length 1221 [2020-10-14 03:49:38,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:38,882 INFO L479 AbstractCegarLoop]: Abstraction has 24508 states and 26008 transitions. [2020-10-14 03:49:38,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:38,882 INFO L276 IsEmpty]: Start isEmpty. Operand 24508 states and 26008 transitions. [2020-10-14 03:49:38,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1239 [2020-10-14 03:49:38,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:38,919 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:38,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:49:38,919 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:38,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:38,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1369623487, now seen corresponding path program 1 times [2020-10-14 03:49:38,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:38,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10606360] [2020-10-14 03:49:38,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:39,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:39,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:39,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:39,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:41,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1262 [2020-10-14 03:49:44,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:49:44,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 03:49:44,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:44,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:49:44,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:49:44,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:44,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:44,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:44,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:44,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:44,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:44,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:44,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:44,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:44,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:44,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:49:44,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:44,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:44,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:44,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:44,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:44,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:49:44,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:49:44,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:49:44,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:44,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:49:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:44,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:49:44,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 03:49:44,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:44,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:44,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:49:44,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:44,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2020-10-14 03:49:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:44,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:49:44,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 03:49:44,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:44,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:49:44,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:44,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:44,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:44,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:49:44,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:49:44,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:44,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:44,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:44,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:44,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 03:49:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:44,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:44,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:49:44,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:44,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:49:44,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:44,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:44,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 904 [2020-10-14 03:49:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:44,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:45,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:45,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:49:45,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:45,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 03:49:45,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:45,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:45,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:45,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:49:45,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:45,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:45,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:49:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:45,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:45,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:45,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:49:45,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:45,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:45,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:45,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:45,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:45,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:45,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:45,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:45,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2293 backedges. 473 proven. 333 refuted. 0 times theorem prover too weak. 1487 trivial. 0 not checked. [2020-10-14 03:49:45,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10606360] [2020-10-14 03:49:45,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:45,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:45,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909414358] [2020-10-14 03:49:45,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:45,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:45,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:45,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:45,626 INFO L87 Difference]: Start difference. First operand 24508 states and 26008 transitions. Second operand 7 states. [2020-10-14 03:49:48,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:48,991 INFO L93 Difference]: Finished difference Result 48001 states and 50977 transitions. [2020-10-14 03:49:48,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:49:48,992 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1238 [2020-10-14 03:49:48,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:49,023 INFO L225 Difference]: With dead ends: 48001 [2020-10-14 03:49:49,023 INFO L226 Difference]: Without dead ends: 23846 [2020-10-14 03:49:49,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:49:49,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23846 states. [2020-10-14 03:49:49,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23846 to 23834. [2020-10-14 03:49:49,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23834 states. [2020-10-14 03:49:49,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23834 states to 23834 states and 25021 transitions. [2020-10-14 03:49:49,321 INFO L78 Accepts]: Start accepts. Automaton has 23834 states and 25021 transitions. Word has length 1238 [2020-10-14 03:49:49,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:49,321 INFO L479 AbstractCegarLoop]: Abstraction has 23834 states and 25021 transitions. [2020-10-14 03:49:49,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:49,322 INFO L276 IsEmpty]: Start isEmpty. Operand 23834 states and 25021 transitions. [2020-10-14 03:49:49,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1534 [2020-10-14 03:49:49,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:49,374 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:49,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:49:49,374 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:49,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:49,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1487284610, now seen corresponding path program 1 times [2020-10-14 03:49:49,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:49,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992186848] [2020-10-14 03:49:49,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:49,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:49,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:50,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:50,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:54,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:54,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1555 [2020-10-14 03:49:54,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:54,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-14 03:49:54,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:54,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:54,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:54,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:49:54,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:49:54,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:54,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:54,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:54,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:54,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:54,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:54,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:54,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:54,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:54,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:54,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:54,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:54,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:54,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:54,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:54,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:49:54,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:54,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:54,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:54,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:54,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:54,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:54,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:54,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:54,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:54,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:49:54,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:54,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:49:54,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:54,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:54,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:54,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:54,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:49:54,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:54,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:49:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:55,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:55,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:55,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:49:55,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:55,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-14 03:49:55,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:55,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:55,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:55,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:55,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:49:55,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:55,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 614 [2020-10-14 03:49:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:55,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:55,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:55,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:49:55,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:55,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:49:55,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:55,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:55,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:55,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:49:55,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:55,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:55,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 802 [2020-10-14 03:49:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:55,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:55,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:55,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:49:55,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:55,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:49:55,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:55,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:55,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:55,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:49:55,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:55,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:55,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1075 [2020-10-14 03:49:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:55,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:55,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:55,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:49:55,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:55,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 03:49:55,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:55,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:55,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:49:55,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:55,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:55,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1329 [2020-10-14 03:49:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:55,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:55,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:55,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 03:49:55,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:55,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:49:55,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:55,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:55,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:55,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 03:49:55,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:55,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:57,564 INFO L134 CoverageAnalysis]: Checked inductivity of 3944 backedges. 655 proven. 859 refuted. 0 times theorem prover too weak. 2430 trivial. 0 not checked. [2020-10-14 03:49:57,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992186848] [2020-10-14 03:49:57,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:57,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:57,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545734510] [2020-10-14 03:49:57,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:57,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:57,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:57,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:57,567 INFO L87 Difference]: Start difference. First operand 23834 states and 25021 transitions. Second operand 7 states. [2020-10-14 03:50:00,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:00,738 INFO L93 Difference]: Finished difference Result 47321 states and 49693 transitions. [2020-10-14 03:50:00,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:50:00,739 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1533 [2020-10-14 03:50:00,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:00,771 INFO L225 Difference]: With dead ends: 47321 [2020-10-14 03:50:00,771 INFO L226 Difference]: Without dead ends: 24179 [2020-10-14 03:50:00,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:50:00,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24179 states. [2020-10-14 03:50:00,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24179 to 24171. [2020-10-14 03:50:00,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24171 states. [2020-10-14 03:50:00,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24171 states to 24171 states and 25366 transitions. [2020-10-14 03:50:00,993 INFO L78 Accepts]: Start accepts. Automaton has 24171 states and 25366 transitions. Word has length 1533 [2020-10-14 03:50:00,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:00,994 INFO L479 AbstractCegarLoop]: Abstraction has 24171 states and 25366 transitions. [2020-10-14 03:50:00,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:00,994 INFO L276 IsEmpty]: Start isEmpty. Operand 24171 states and 25366 transitions. [2020-10-14 03:50:01,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1536 [2020-10-14 03:50:01,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:01,021 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:50:01,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 03:50:01,022 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:01,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:01,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1520586350, now seen corresponding path program 1 times [2020-10-14 03:50:01,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:01,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121981565] [2020-10-14 03:50:01,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:01,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:01,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:01,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:03,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:06,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:06,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1557 [2020-10-14 03:50:06,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:50:06,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-14 03:50:06,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:06,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 812 [2020-10-14 03:50:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:50:06,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:06,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:06,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:06,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:06,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:06,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:06,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:50:06,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:06,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:06,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:06,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:06,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:06,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:06,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:06,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:06,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:06,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:50:06,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:06,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-14 03:50:06,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:06,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:06,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:06,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:06,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:06,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:06,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:50:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:06,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:06,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:06,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:50:06,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:06,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 03:50:06,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:06,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:06,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:06,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:06,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:06,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:06,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:50:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:06,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:06,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:06,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:50:06,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:06,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:50:06,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:06,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:06,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:06,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:06,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:06,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:06,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:50:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:06,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:06,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:06,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:50:06,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:06,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 03:50:06,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:06,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 03:50:06,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:07,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:50:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:07,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:07,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:07,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:50:07,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:07,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 03:50:07,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:07,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:50:07,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:07,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1077 [2020-10-14 03:50:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:07,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:07,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:07,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:50:07,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:07,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 03:50:07,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:07,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:50:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:07,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:07,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1331 [2020-10-14 03:50:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:07,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:07,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:07,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 03:50:07,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:07,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:50:07,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:07,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:07,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:07,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 03:50:07,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:07,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:08,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3883 backedges. 1108 proven. 415 refuted. 0 times theorem prover too weak. 2360 trivial. 0 not checked. [2020-10-14 03:50:08,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121981565] [2020-10-14 03:50:08,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:08,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:08,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124108440] [2020-10-14 03:50:08,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:08,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:08,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:08,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:08,626 INFO L87 Difference]: Start difference. First operand 24171 states and 25366 transitions. Second operand 7 states. [2020-10-14 03:50:11,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:11,775 INFO L93 Difference]: Finished difference Result 48673 states and 51076 transitions. [2020-10-14 03:50:11,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:50:11,776 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1535 [2020-10-14 03:50:11,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:11,813 INFO L225 Difference]: With dead ends: 48673 [2020-10-14 03:50:11,813 INFO L226 Difference]: Without dead ends: 25194 [2020-10-14 03:50:11,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:50:11,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25194 states. [2020-10-14 03:50:12,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25194 to 24512. [2020-10-14 03:50:12,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24512 states. [2020-10-14 03:50:12,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24512 states to 24512 states and 25692 transitions. [2020-10-14 03:50:12,052 INFO L78 Accepts]: Start accepts. Automaton has 24512 states and 25692 transitions. Word has length 1535 [2020-10-14 03:50:12,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:12,053 INFO L479 AbstractCegarLoop]: Abstraction has 24512 states and 25692 transitions. [2020-10-14 03:50:12,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:12,053 INFO L276 IsEmpty]: Start isEmpty. Operand 24512 states and 25692 transitions. [2020-10-14 03:50:12,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1586 [2020-10-14 03:50:12,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:12,086 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:50:12,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 03:50:12,087 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:12,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:12,088 INFO L82 PathProgramCache]: Analyzing trace with hash -23655402, now seen corresponding path program 1 times [2020-10-14 03:50:12,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:12,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206777845] [2020-10-14 03:50:12,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:12,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:12,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:14,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:17,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:17,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1609 [2020-10-14 03:50:17,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:50:17,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5112 [2020-10-14 03:50:17,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:17,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:50:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:50:17,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:17,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:17,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:17,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:17,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:17,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:17,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:50:17,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:17,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:17,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:17,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:17,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:17,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:17,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:17,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:17,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:17,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:50:17,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:17,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 03:50:17,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:17,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:17,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:17,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:50:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:17,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:17,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:17,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:50:17,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:17,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 03:50:17,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:17,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:17,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:17,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:50:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:17,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:17,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:17,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:50:17,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:17,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:50:17,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:17,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:17,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:17,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:17,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:17,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:18,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:50:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:18,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:18,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:18,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:50:18,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:18,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:50:18,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:18,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:18,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:18,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:18,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:18,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:18,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:50:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:18,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:18,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:18,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:50:18,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:18,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:50:18,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:18,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:50:18,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:18,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:50:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:18,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:18,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:18,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:50:18,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:18,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 03:50:18,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:18,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:18,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:18,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:18,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:50:18,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:18,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1129 [2020-10-14 03:50:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:18,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:18,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:18,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:50:18,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:18,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 03:50:18,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:18,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:18,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:18,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:50:18,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:18,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:18,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1381 [2020-10-14 03:50:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:18,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:18,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:18,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 03:50:18,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:18,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 03:50:18,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:18,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 03:50:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:18,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:19,816 INFO L134 CoverageAnalysis]: Checked inductivity of 4533 backedges. 1176 proven. 376 refuted. 0 times theorem prover too weak. 2981 trivial. 0 not checked. [2020-10-14 03:50:19,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206777845] [2020-10-14 03:50:19,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:19,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:19,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715647040] [2020-10-14 03:50:19,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:19,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:19,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:19,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:19,820 INFO L87 Difference]: Start difference. First operand 24512 states and 25692 transitions. Second operand 7 states. [2020-10-14 03:50:22,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:22,817 INFO L93 Difference]: Finished difference Result 49693 states and 52136 transitions. [2020-10-14 03:50:22,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:50:22,820 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1585 [2020-10-14 03:50:22,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:22,860 INFO L225 Difference]: With dead ends: 49693 [2020-10-14 03:50:22,860 INFO L226 Difference]: Without dead ends: 25871 [2020-10-14 03:50:22,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:50:22,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25871 states. [2020-10-14 03:50:23,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25871 to 25524. [2020-10-14 03:50:23,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25524 states. [2020-10-14 03:50:23,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25524 states to 25524 states and 26614 transitions. [2020-10-14 03:50:23,099 INFO L78 Accepts]: Start accepts. Automaton has 25524 states and 26614 transitions. Word has length 1585 [2020-10-14 03:50:23,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:23,099 INFO L479 AbstractCegarLoop]: Abstraction has 25524 states and 26614 transitions. [2020-10-14 03:50:23,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:23,099 INFO L276 IsEmpty]: Start isEmpty. Operand 25524 states and 26614 transitions. [2020-10-14 03:50:23,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1939 [2020-10-14 03:50:23,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:23,138 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:50:23,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 03:50:23,138 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:23,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:23,139 INFO L82 PathProgramCache]: Analyzing trace with hash 475307871, now seen corresponding path program 1 times [2020-10-14 03:50:23,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:23,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524164790] [2020-10-14 03:50:23,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:23,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:23,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:24,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:24,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:24,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:28,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:28,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1964 [2020-10-14 03:50:28,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:50:28,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 03:50:28,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:28,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:28,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:28,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-14 03:50:28,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:50:28,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:28,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:28,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:28,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:28,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:28,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:28,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:50:28,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:28,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:28,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:28,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:28,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:28,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:28,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:50:28,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:28,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:50:28,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:28,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:28,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:28,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:28,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:28,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:28,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:50:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:28,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:28,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:28,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:50:28,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:28,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:50:28,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:28,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:28,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:28,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 03:50:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:28,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:28,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:28,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:50:28,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:28,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:50:28,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:28,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:28,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:28,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:28,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:28,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:28,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 780 [2020-10-14 03:50:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:28,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:28,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:28,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:50:28,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:28,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:50:28,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:28,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:28,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:28,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:28,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:50:28,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:28,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 863 [2020-10-14 03:50:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:28,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:29,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:29,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:50:29,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:29,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-14 03:50:29,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:29,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:50:29,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:29,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1113 [2020-10-14 03:50:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:29,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:29,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:29,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:50:29,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:29,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 03:50:29,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:29,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:50:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:29,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:29,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:50:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:29,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:29,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:29,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:50:29,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:29,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:50:29,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:29,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:29,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:29,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:29,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:29,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:29,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1414 [2020-10-14 03:50:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:29,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:29,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:29,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:50:29,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:29,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 03:50:29,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:29,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:50:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:29,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:29,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1668 [2020-10-14 03:50:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:29,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:29,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:29,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-14 03:50:29,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:29,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 03:50:29,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:29,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:29,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:29,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-14 03:50:29,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:29,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:31,331 INFO L134 CoverageAnalysis]: Checked inductivity of 6052 backedges. 1200 proven. 724 refuted. 0 times theorem prover too weak. 4128 trivial. 0 not checked. [2020-10-14 03:50:31,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524164790] [2020-10-14 03:50:31,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:31,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:31,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182966437] [2020-10-14 03:50:31,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:31,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:31,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:31,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:31,337 INFO L87 Difference]: Start difference. First operand 25524 states and 26614 transitions. Second operand 7 states.