/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/Problem11_label28.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 02:35:48,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 02:35:48,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 02:35:48,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 02:35:48,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 02:35:48,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 02:35:48,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 02:35:48,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 02:35:48,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 02:35:48,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 02:35:48,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 02:35:48,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 02:35:48,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 02:35:48,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 02:35:48,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 02:35:48,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 02:35:48,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 02:35:48,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 02:35:48,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 02:35:48,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 02:35:48,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 02:35:48,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 02:35:48,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 02:35:48,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 02:35:48,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 02:35:48,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 02:35:48,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 02:35:48,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 02:35:48,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 02:35:48,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 02:35:48,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 02:35:48,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 02:35:48,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 02:35:48,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 02:35:48,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 02:35:48,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 02:35:48,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 02:35:48,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 02:35:48,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 02:35:48,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 02:35:48,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 02:35:48,349 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 02:35:48,371 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 02:35:48,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 02:35:48,372 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 02:35:48,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 02:35:48,372 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 02:35:48,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 02:35:48,375 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 02:35:48,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 02:35:48,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 02:35:48,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 02:35:48,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 02:35:48,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 02:35:48,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 02:35:48,376 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 02:35:48,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 02:35:48,377 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 02:35:48,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 02:35:48,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 02:35:48,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 02:35:48,378 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 02:35:48,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 02:35:48,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 02:35:48,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 02:35:48,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 02:35:48,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 02:35:48,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 02:35:48,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 02:35:48,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 02:35:48,379 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 02:35:48,380 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 02:35:48,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 02:35:48,705 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 02:35:48,708 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 02:35:48,710 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 02:35:48,710 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 02:35:48,711 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label28.c [2020-10-14 02:35:48,773 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d87defbd1/d69f0d8ade78496e8e0b1b6744f0f048/FLAG5356bd36a [2020-10-14 02:35:49,460 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 02:35:49,461 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label28.c [2020-10-14 02:35:49,476 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d87defbd1/d69f0d8ade78496e8e0b1b6744f0f048/FLAG5356bd36a [2020-10-14 02:35:49,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d87defbd1/d69f0d8ade78496e8e0b1b6744f0f048 [2020-10-14 02:35:49,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 02:35:49,687 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 02:35:49,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 02:35:49,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 02:35:49,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 02:35:49,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:35:49" (1/1) ... [2020-10-14 02:35:49,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:35:49, skipping insertion in model container [2020-10-14 02:35:49,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:35:49" (1/1) ... [2020-10-14 02:35:49,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 02:35:49,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 02:35:50,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:35:50,481 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 02:35:50,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:35:50,747 INFO L208 MainTranslator]: Completed translation [2020-10-14 02:35:50,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:35:50 WrapperNode [2020-10-14 02:35:50,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 02:35:50,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 02:35:50,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 02:35:50,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 02:35:50,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:35:50" (1/1) ... [2020-10-14 02:35:50,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:35:50" (1/1) ... [2020-10-14 02:35:50,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:35:50" (1/1) ... [2020-10-14 02:35:50,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:35:50" (1/1) ... [2020-10-14 02:35:50,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:35:50" (1/1) ... [2020-10-14 02:35:50,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:35:50" (1/1) ... [2020-10-14 02:35:50,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:35:50" (1/1) ... [2020-10-14 02:35:50,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 02:35:50,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 02:35:50,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 02:35:50,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 02:35:50,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:35:50" (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 02:35:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 02:35:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 02:35:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 02:35:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 02:35:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 02:35:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 02:35:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 02:35:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 02:35:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 02:35:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 02:35:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 02:35:52,880 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 02:35:52,880 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 02:35:52,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:35:52 BoogieIcfgContainer [2020-10-14 02:35:52,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 02:35:52,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 02:35:52,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 02:35:52,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 02:35:52,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:35:49" (1/3) ... [2020-10-14 02:35:52,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4640ca13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:35:52, skipping insertion in model container [2020-10-14 02:35:52,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:35:50" (2/3) ... [2020-10-14 02:35:52,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4640ca13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:35:52, skipping insertion in model container [2020-10-14 02:35:52,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:35:52" (3/3) ... [2020-10-14 02:35:52,898 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label28.c [2020-10-14 02:35:52,910 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 02:35:52,919 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 02:35:52,935 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 02:35:52,961 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 02:35:52,961 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 02:35:52,961 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 02:35:52,961 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 02:35:52,961 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 02:35:52,962 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 02:35:52,962 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 02:35:52,962 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 02:35:52,990 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-10-14 02:35:53,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 02:35:53,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:35:53,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:35:53,003 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:35:53,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:35:53,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1610348989, now seen corresponding path program 1 times [2020-10-14 02:35:53,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:35:53,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967308593] [2020-10-14 02:35:53,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:35:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:53,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:53,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:53,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-14 02:35:53,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:53,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426 [2020-10-14 02:35:53,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:53,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:53,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 02:35:53,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:35:53,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 02:35:53,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 02:35:53,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:35:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:53,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:53,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:53,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:35:53,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:53,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 02:35:53,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:53,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:53,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:35:53,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:35:53,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:35:53,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:35:53,875 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 02:35:53,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967308593] [2020-10-14 02:35:53,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 02:35:53,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 02:35:53,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968893071] [2020-10-14 02:35:53,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:35:53,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:35:53,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:35:53,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:35:53,906 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 5 states. [2020-10-14 02:35:57,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:35:57,218 INFO L93 Difference]: Finished difference Result 998 states and 1793 transitions. [2020-10-14 02:35:57,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 02:35:57,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-10-14 02:35:57,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:35:57,252 INFO L225 Difference]: With dead ends: 998 [2020-10-14 02:35:57,253 INFO L226 Difference]: Without dead ends: 638 [2020-10-14 02:35:57,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:35:57,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2020-10-14 02:35:57,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 621. [2020-10-14 02:35:57,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-10-14 02:35:57,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 950 transitions. [2020-10-14 02:35:57,362 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 950 transitions. Word has length 54 [2020-10-14 02:35:57,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:35:57,363 INFO L479 AbstractCegarLoop]: Abstraction has 621 states and 950 transitions. [2020-10-14 02:35:57,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:35:57,363 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 950 transitions. [2020-10-14 02:35:57,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-14 02:35:57,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:35:57,370 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:35:57,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 02:35:57,370 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:35:57,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:35:57,371 INFO L82 PathProgramCache]: Analyzing trace with hash 990619398, now seen corresponding path program 1 times [2020-10-14 02:35:57,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:35:57,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057989873] [2020-10-14 02:35:57,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:35:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:57,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:57,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:59,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:59,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 02:35:59,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:35:59,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1640 [2020-10-14 02:35:59,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:59,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:59,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:35:59,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 02:35:59,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 02:35:59,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 02:35:59,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:35:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:59,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:59,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:59,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:35:59,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:59,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 02:35:59,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:59,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:59,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:35:59,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:35:59,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:35:59,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 02:35:59,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:35:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:35:59,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:35:59,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:35:59,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 02:35:59,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:35:59,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 02:35:59,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:35:59,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:35:59,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:35:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:35:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 02:35:59,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 02:35:59,429 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 46 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:35:59,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057989873] [2020-10-14 02:35:59,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:35:59,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:35:59,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073119775] [2020-10-14 02:35:59,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:35:59,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:35:59,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:35:59,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:35:59,433 INFO L87 Difference]: Start difference. First operand 621 states and 950 transitions. Second operand 5 states. [2020-10-14 02:36:01,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:36:01,501 INFO L93 Difference]: Finished difference Result 1814 states and 2826 transitions. [2020-10-14 02:36:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:36:01,502 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-10-14 02:36:01,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:36:01,516 INFO L225 Difference]: With dead ends: 1814 [2020-10-14 02:36:01,517 INFO L226 Difference]: Without dead ends: 1199 [2020-10-14 02:36:01,520 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 02:36:01,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2020-10-14 02:36:01,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1193. [2020-10-14 02:36:01,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2020-10-14 02:36:01,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1666 transitions. [2020-10-14 02:36:01,600 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1666 transitions. Word has length 124 [2020-10-14 02:36:01,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:36:01,601 INFO L479 AbstractCegarLoop]: Abstraction has 1193 states and 1666 transitions. [2020-10-14 02:36:01,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:36:01,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1666 transitions. [2020-10-14 02:36:01,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-14 02:36:01,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:36:01,606 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:36:01,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 02:36:01,607 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:36:01,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:36:01,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1199392174, now seen corresponding path program 1 times [2020-10-14 02:36:01,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:36:01,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585062665] [2020-10-14 02:36:01,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:36:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:01,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:01,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:02,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:03,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:03,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:03,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 02:36:03,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:36:03,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1732 [2020-10-14 02:36:03,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:03,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 02:36:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 02:36:03,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:36:03,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:36:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:03,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:03,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:03,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:36:03,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:03,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 02:36:03,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:03,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:03,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:36:03,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:03,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:36:03,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:36:03,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:36:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:03,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:03,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:03,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 02:36:03,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:03,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 02:36:03,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:03,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:03,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:36:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:03,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 02:36:03,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:36:03,700 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 46 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:36:03,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585062665] [2020-10-14 02:36:03,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:36:03,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:36:03,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272908931] [2020-10-14 02:36:03,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:36:03,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:36:03,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:36:03,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:36:03,703 INFO L87 Difference]: Start difference. First operand 1193 states and 1666 transitions. Second operand 5 states. [2020-10-14 02:36:06,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:36:06,385 INFO L93 Difference]: Finished difference Result 2970 states and 4297 transitions. [2020-10-14 02:36:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:36:06,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2020-10-14 02:36:06,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:36:06,404 INFO L225 Difference]: With dead ends: 2970 [2020-10-14 02:36:06,404 INFO L226 Difference]: Without dead ends: 1783 [2020-10-14 02:36:06,409 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 02:36:06,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2020-10-14 02:36:06,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1775. [2020-10-14 02:36:06,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1775 states. [2020-10-14 02:36:06,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2442 transitions. [2020-10-14 02:36:06,490 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2442 transitions. Word has length 134 [2020-10-14 02:36:06,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:36:06,493 INFO L479 AbstractCegarLoop]: Abstraction has 1775 states and 2442 transitions. [2020-10-14 02:36:06,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:36:06,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2442 transitions. [2020-10-14 02:36:06,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-14 02:36:06,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:36:06,519 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2020-10-14 02:36:06,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 02:36:06,523 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:36:06,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:36:06,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1658364162, now seen corresponding path program 1 times [2020-10-14 02:36:06,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:36:06,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871136363] [2020-10-14 02:36:06,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:36:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:06,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:06,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:07,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:07,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:11,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:11,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:11,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-14 02:36:11,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:36:11,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 02:36:11,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:11,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:11,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:11,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 02:36:11,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 02:36:11,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:36:11,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:36:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:11,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:11,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:11,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:36:11,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:11,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:36:11,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:11,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:11,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:36:11,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:11,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:36:11,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:36:11,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:36:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:11,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:11,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:11,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 02:36:11,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:11,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 02:36:11,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:11,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:36:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 02:36:11,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:36:11,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 02:36:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:11,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:12,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:12,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 02:36:12,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:12,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-14 02:36:12,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:12,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:36:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 02:36:12,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:36:12,231 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:36:12,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871136363] [2020-10-14 02:36:12,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:36:12,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:36:12,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383202924] [2020-10-14 02:36:12,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:36:12,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:36:12,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:36:12,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:36:12,236 INFO L87 Difference]: Start difference. First operand 1775 states and 2442 transitions. Second operand 7 states. [2020-10-14 02:36:15,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:36:15,102 INFO L93 Difference]: Finished difference Result 4218 states and 6389 transitions. [2020-10-14 02:36:15,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:36:15,103 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 229 [2020-10-14 02:36:15,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:36:15,129 INFO L225 Difference]: With dead ends: 4218 [2020-10-14 02:36:15,130 INFO L226 Difference]: Without dead ends: 2449 [2020-10-14 02:36:15,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:36:15,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2449 states. [2020-10-14 02:36:15,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2449 to 2373. [2020-10-14 02:36:15,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2373 states. [2020-10-14 02:36:15,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 3353 transitions. [2020-10-14 02:36:15,322 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 3353 transitions. Word has length 229 [2020-10-14 02:36:15,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:36:15,324 INFO L479 AbstractCegarLoop]: Abstraction has 2373 states and 3353 transitions. [2020-10-14 02:36:15,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:36:15,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 3353 transitions. [2020-10-14 02:36:15,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-14 02:36:15,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:36:15,331 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2020-10-14 02:36:15,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 02:36:15,332 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:36:15,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:36:15,332 INFO L82 PathProgramCache]: Analyzing trace with hash -774110726, now seen corresponding path program 1 times [2020-10-14 02:36:15,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:36:15,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222136777] [2020-10-14 02:36:15,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:36:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:15,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:15,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:15,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:18,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:18,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-14 02:36:18,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:36:18,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2681 [2020-10-14 02:36:18,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:18,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:18,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:18,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 02:36:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 02:36:18,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:36:18,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:36:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:18,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:18,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:18,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:36:18,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:18,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:36:18,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:18,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:18,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:36:18,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:18,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:36:18,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 02:36:18,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:36:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:18,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:18,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:18,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 02:36:18,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:18,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 02:36:18,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:18,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:18,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:36:18,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:18,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 02:36:18,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:36:18,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 02:36:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:18,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:18,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:18,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 02:36:18,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:18,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 02:36:18,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:18,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:18,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:18,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:36:18,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 02:36:18,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:36:18,689 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:36:18,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222136777] [2020-10-14 02:36:18,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:36:18,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:36:18,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907318032] [2020-10-14 02:36:18,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:36:18,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:36:18,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:36:18,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:36:18,693 INFO L87 Difference]: Start difference. First operand 2373 states and 3353 transitions. Second operand 7 states. [2020-10-14 02:36:21,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:36:21,115 INFO L93 Difference]: Finished difference Result 6283 states and 9085 transitions. [2020-10-14 02:36:21,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 02:36:21,117 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 233 [2020-10-14 02:36:21,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:36:21,138 INFO L225 Difference]: With dead ends: 6283 [2020-10-14 02:36:21,139 INFO L226 Difference]: Without dead ends: 3916 [2020-10-14 02:36:21,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:36:21,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2020-10-14 02:36:21,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3337. [2020-10-14 02:36:21,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3337 states. [2020-10-14 02:36:21,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3337 states to 3337 states and 4403 transitions. [2020-10-14 02:36:21,252 INFO L78 Accepts]: Start accepts. Automaton has 3337 states and 4403 transitions. Word has length 233 [2020-10-14 02:36:21,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:36:21,252 INFO L479 AbstractCegarLoop]: Abstraction has 3337 states and 4403 transitions. [2020-10-14 02:36:21,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:36:21,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3337 states and 4403 transitions. [2020-10-14 02:36:21,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-14 02:36:21,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:36:21,260 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-10-14 02:36:21,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 02:36:21,260 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:36:21,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:36:21,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1465017247, now seen corresponding path program 1 times [2020-10-14 02:36:21,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:36:21,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175342892] [2020-10-14 02:36:21,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:36:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:21,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:21,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:21,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:25,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:25,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-14 02:36:25,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:36:25,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4115 [2020-10-14 02:36:25,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:25,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:25,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:25,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-14 02:36:25,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:36:25,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:36:25,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:36:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:25,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:25,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:25,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:36:25,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:25,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 02:36:25,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:25,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:36:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:36:25,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:36:25,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:36:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:25,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:25,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:25,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 02:36:25,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:25,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 02:36:25,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:25,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:25,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:36:25,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:25,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 02:36:25,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:36:25,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 02:36:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:25,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:25,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:25,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:36:25,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:25,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 02:36:25,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:25,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:36:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:36:25,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:26,130 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 164 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:36:26,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175342892] [2020-10-14 02:36:26,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:36:26,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:36:26,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921273352] [2020-10-14 02:36:26,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:36:26,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:36:26,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:36:26,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:36:26,135 INFO L87 Difference]: Start difference. First operand 3337 states and 4403 transitions. Second operand 7 states. [2020-10-14 02:36:29,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:36:29,227 INFO L93 Difference]: Finished difference Result 7355 states and 10097 transitions. [2020-10-14 02:36:29,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:36:29,228 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-10-14 02:36:29,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:36:29,255 INFO L225 Difference]: With dead ends: 7355 [2020-10-14 02:36:29,255 INFO L226 Difference]: Without dead ends: 3824 [2020-10-14 02:36:29,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:36:29,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3824 states. [2020-10-14 02:36:29,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3824 to 3539. [2020-10-14 02:36:29,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3539 states. [2020-10-14 02:36:29,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3539 states to 3539 states and 4616 transitions. [2020-10-14 02:36:29,394 INFO L78 Accepts]: Start accepts. Automaton has 3539 states and 4616 transitions. Word has length 237 [2020-10-14 02:36:29,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:36:29,394 INFO L479 AbstractCegarLoop]: Abstraction has 3539 states and 4616 transitions. [2020-10-14 02:36:29,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:36:29,395 INFO L276 IsEmpty]: Start isEmpty. Operand 3539 states and 4616 transitions. [2020-10-14 02:36:29,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-14 02:36:29,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:36:29,402 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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 02:36:29,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 02:36:29,403 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:36:29,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:36:29,403 INFO L82 PathProgramCache]: Analyzing trace with hash 884492906, now seen corresponding path program 1 times [2020-10-14 02:36:29,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:36:29,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047105376] [2020-10-14 02:36:29,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:36:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:29,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:29,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:29,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:31,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:31,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 02:36:31,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:36:31,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1898 [2020-10-14 02:36:31,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:31,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:31,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:31,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 02:36:31,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:36:31,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:31,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:36:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:31,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:31,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:31,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:36:31,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:31,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:36:31,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:31,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:31,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:36:31,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:31,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:36:31,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:31,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:36:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:31,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:31,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:31,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 02:36:31,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:31,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 02:36:31,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:31,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:31,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:36:31,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:31,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 02:36:31,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:36:31,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 02:36:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:31,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:31,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:31,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:36:31,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:31,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 02:36:31,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:31,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:36:31,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:36:31,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:36:31,911 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:36:31,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047105376] [2020-10-14 02:36:31,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:36:31,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:36:31,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410795352] [2020-10-14 02:36:31,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:36:31,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:36:31,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:36:31,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:36:31,914 INFO L87 Difference]: Start difference. First operand 3539 states and 4616 transitions. Second operand 7 states. [2020-10-14 02:36:34,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:36:34,768 INFO L93 Difference]: Finished difference Result 7767 states and 10619 transitions. [2020-10-14 02:36:34,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:36:34,769 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 238 [2020-10-14 02:36:34,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:36:34,794 INFO L225 Difference]: With dead ends: 7767 [2020-10-14 02:36:34,794 INFO L226 Difference]: Without dead ends: 4032 [2020-10-14 02:36:34,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 02:36:34,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4032 states. [2020-10-14 02:36:34,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4032 to 3737. [2020-10-14 02:36:34,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3737 states. [2020-10-14 02:36:34,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3737 states to 3737 states and 4824 transitions. [2020-10-14 02:36:34,933 INFO L78 Accepts]: Start accepts. Automaton has 3737 states and 4824 transitions. Word has length 238 [2020-10-14 02:36:34,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:36:34,933 INFO L479 AbstractCegarLoop]: Abstraction has 3737 states and 4824 transitions. [2020-10-14 02:36:34,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:36:34,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3737 states and 4824 transitions. [2020-10-14 02:36:34,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-14 02:36:34,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:36:34,940 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:36:34,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 02:36:34,941 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:36:34,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:36:34,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1593687938, now seen corresponding path program 1 times [2020-10-14 02:36:34,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:36:34,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [847513569] [2020-10-14 02:36:34,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:36:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:34,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:35,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:35,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:37,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:38,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:39,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:39,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 02:36:39,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:36:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4447 [2020-10-14 02:36:39,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:39,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 02:36:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 02:36:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:39,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:36:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:39,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:39,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:39,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:36:39,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:39,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:36:39,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:39,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:36:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:36:39,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:39,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:36:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:39,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:39,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:39,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:36:39,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:39,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 02:36:39,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:39,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:39,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:36:39,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:39,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 02:36:39,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:39,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:36:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:39,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:39,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:39,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 02:36:39,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:39,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 02:36:39,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:39,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:39,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:36:39,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 02:36:39,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:39,815 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:36:39,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [847513569] [2020-10-14 02:36:39,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:36:39,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 02:36:39,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174535615] [2020-10-14 02:36:39,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 02:36:39,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:36:39,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 02:36:39,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 02:36:39,817 INFO L87 Difference]: Start difference. First operand 3737 states and 4824 transitions. Second operand 8 states. [2020-10-14 02:36:42,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:36:42,252 INFO L93 Difference]: Finished difference Result 7556 states and 10111 transitions. [2020-10-14 02:36:42,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 02:36:42,252 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 243 [2020-10-14 02:36:42,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:36:42,273 INFO L225 Difference]: With dead ends: 7556 [2020-10-14 02:36:42,273 INFO L226 Difference]: Without dead ends: 3825 [2020-10-14 02:36:42,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:36:42,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2020-10-14 02:36:42,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 3737. [2020-10-14 02:36:42,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3737 states. [2020-10-14 02:36:42,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3737 states to 3737 states and 4742 transitions. [2020-10-14 02:36:42,396 INFO L78 Accepts]: Start accepts. Automaton has 3737 states and 4742 transitions. Word has length 243 [2020-10-14 02:36:42,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:36:42,397 INFO L479 AbstractCegarLoop]: Abstraction has 3737 states and 4742 transitions. [2020-10-14 02:36:42,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 02:36:42,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3737 states and 4742 transitions. [2020-10-14 02:36:42,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-14 02:36:42,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:36:42,406 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:36:42,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 02:36:42,406 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:36:42,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:36:42,407 INFO L82 PathProgramCache]: Analyzing trace with hash -24765698, now seen corresponding path program 1 times [2020-10-14 02:36:42,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:36:42,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290742645] [2020-10-14 02:36:42,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:36:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:42,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:42,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:42,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:43,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:45,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:45,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-14 02:36:45,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:36:45,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2635 [2020-10-14 02:36:45,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:45,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:45,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:45,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 02:36:45,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:36:45,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:45,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:36:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:45,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:45,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:45,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:36:45,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:45,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:36:45,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:45,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:36:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:36:45,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:45,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:36:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:45,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:45,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:45,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 02:36:45,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:45,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 02:36:45,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:45,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:36:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 02:36:45,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:45,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 02:36:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:45,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:45,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:45,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:36:45,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:45,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 02:36:45,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:45,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:45,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:45,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:36:45,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:36:45,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:45,443 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 171 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:36:45,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290742645] [2020-10-14 02:36:45,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:36:45,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:36:45,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055355834] [2020-10-14 02:36:45,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:36:45,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:36:45,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:36:45,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:36:45,445 INFO L87 Difference]: Start difference. First operand 3737 states and 4742 transitions. Second operand 7 states. [2020-10-14 02:36:49,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:36:49,334 INFO L93 Difference]: Finished difference Result 10514 states and 14418 transitions. [2020-10-14 02:36:49,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:36:49,335 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 244 [2020-10-14 02:36:49,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:36:49,381 INFO L225 Difference]: With dead ends: 10514 [2020-10-14 02:36:49,381 INFO L226 Difference]: Without dead ends: 6581 [2020-10-14 02:36:49,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:36:49,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6581 states. [2020-10-14 02:36:49,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6581 to 5876. [2020-10-14 02:36:49,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5876 states. [2020-10-14 02:36:49,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5876 states to 5876 states and 7261 transitions. [2020-10-14 02:36:49,625 INFO L78 Accepts]: Start accepts. Automaton has 5876 states and 7261 transitions. Word has length 244 [2020-10-14 02:36:49,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:36:49,625 INFO L479 AbstractCegarLoop]: Abstraction has 5876 states and 7261 transitions. [2020-10-14 02:36:49,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:36:49,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5876 states and 7261 transitions. [2020-10-14 02:36:49,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-14 02:36:49,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:36:49,635 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:36:49,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 02:36:49,635 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:36:49,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:36:49,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1695448202, now seen corresponding path program 1 times [2020-10-14 02:36:49,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:36:49,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128464822] [2020-10-14 02:36:49,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:36:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:49,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:49,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:50,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:50,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-14 02:36:50,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:36:50,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1204 [2020-10-14 02:36:50,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:50,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:50,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:50,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 02:36:50,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 02:36:50,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:50,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:36:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:50,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:50,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:50,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:36:50,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:50,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:36:50,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:50,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:50,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:36:50,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:50,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:36:50,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:50,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:36:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:50,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:51,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:51,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:36:51,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:51,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 02:36:51,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:51,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:51,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:36:51,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:51,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 02:36:51,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:51,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:36:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:51,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:51,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:51,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 02:36:51,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:51,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 02:36:51,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:51,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:51,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:51,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:36:51,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 02:36:51,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:51,253 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:36:51,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128464822] [2020-10-14 02:36:51,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:36:51,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:36:51,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425494610] [2020-10-14 02:36:51,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:36:51,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:36:51,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:36:51,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:36:51,255 INFO L87 Difference]: Start difference. First operand 5876 states and 7261 transitions. Second operand 7 states. [2020-10-14 02:36:54,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:36:54,020 INFO L93 Difference]: Finished difference Result 12241 states and 16712 transitions. [2020-10-14 02:36:54,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:36:54,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 247 [2020-10-14 02:36:54,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:36:54,054 INFO L225 Difference]: With dead ends: 12241 [2020-10-14 02:36:54,054 INFO L226 Difference]: Without dead ends: 7127 [2020-10-14 02:36:54,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:36:54,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7127 states. [2020-10-14 02:36:54,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7127 to 6298. [2020-10-14 02:36:54,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6298 states. [2020-10-14 02:36:54,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6298 states to 6298 states and 7679 transitions. [2020-10-14 02:36:54,266 INFO L78 Accepts]: Start accepts. Automaton has 6298 states and 7679 transitions. Word has length 247 [2020-10-14 02:36:54,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:36:54,266 INFO L479 AbstractCegarLoop]: Abstraction has 6298 states and 7679 transitions. [2020-10-14 02:36:54,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:36:54,267 INFO L276 IsEmpty]: Start isEmpty. Operand 6298 states and 7679 transitions. [2020-10-14 02:36:54,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-14 02:36:54,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:36:54,277 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:36:54,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 02:36:54,277 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:36:54,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:36:54,278 INFO L82 PathProgramCache]: Analyzing trace with hash -981182866, now seen corresponding path program 1 times [2020-10-14 02:36:54,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:36:54,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724642272] [2020-10-14 02:36:54,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:36:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:54,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:54,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:55,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:55,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-14 02:36:55,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:36:55,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1148 [2020-10-14 02:36:55,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:55,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:55,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:55,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 02:36:55,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:36:55,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:55,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:36:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:55,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:55,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:55,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:36:55,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:55,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:36:55,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:55,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:55,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:36:55,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:55,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:36:55,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:55,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:36:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:55,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:55,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:55,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:36:55,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:55,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 02:36:55,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:55,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:55,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:36:55,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:55,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 02:36:55,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:55,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:36:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:55,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:55,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:55,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:36:55,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:55,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 02:36:55,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:55,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:36:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:36:55,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:55,854 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:36:55,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1724642272] [2020-10-14 02:36:55,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:36:55,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:36:55,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376989656] [2020-10-14 02:36:55,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:36:55,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:36:55,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:36:55,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:36:55,856 INFO L87 Difference]: Start difference. First operand 6298 states and 7679 transitions. Second operand 7 states. [2020-10-14 02:36:58,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:36:58,107 INFO L93 Difference]: Finished difference Result 12245 states and 14965 transitions. [2020-10-14 02:36:58,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 02:36:58,109 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 252 [2020-10-14 02:36:58,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:36:58,131 INFO L225 Difference]: With dead ends: 12245 [2020-10-14 02:36:58,131 INFO L226 Difference]: Without dead ends: 6709 [2020-10-14 02:36:58,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 02:36:58,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6709 states. [2020-10-14 02:36:58,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6709 to 6494. [2020-10-14 02:36:58,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6494 states. [2020-10-14 02:36:58,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6494 states to 6494 states and 7866 transitions. [2020-10-14 02:36:58,267 INFO L78 Accepts]: Start accepts. Automaton has 6494 states and 7866 transitions. Word has length 252 [2020-10-14 02:36:58,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:36:58,268 INFO L479 AbstractCegarLoop]: Abstraction has 6494 states and 7866 transitions. [2020-10-14 02:36:58,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:36:58,268 INFO L276 IsEmpty]: Start isEmpty. Operand 6494 states and 7866 transitions. [2020-10-14 02:36:58,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-14 02:36:58,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:36:58,277 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:36:58,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 02:36:58,278 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:36:58,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:36:58,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1204691198, now seen corresponding path program 1 times [2020-10-14 02:36:58,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:36:58,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307757626] [2020-10-14 02:36:58,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:36:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:58,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:58,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:59,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:59,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-14 02:36:59,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:36:59,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1196 [2020-10-14 02:36:59,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:59,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:59,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:59,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-14 02:36:59,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:36:59,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:59,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:36:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:59,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:59,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:59,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:36:59,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:59,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:36:59,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:59,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:59,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:36:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:59,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:36:59,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:59,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:36:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:59,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:59,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:59,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 02:36:59,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:59,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 02:36:59,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:59,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:36:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:36:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 02:36:59,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:59,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 02:36:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:36:59,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:36:59,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:36:59,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:36:59,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:36:59,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 02:36:59,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:36:59,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:36:59,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:36:59,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:36:59,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:36:59,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:36:59,949 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:36:59,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307757626] [2020-10-14 02:36:59,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:36:59,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:36:59,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541028683] [2020-10-14 02:36:59,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:36:59,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:36:59,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:36:59,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:36:59,952 INFO L87 Difference]: Start difference. First operand 6494 states and 7866 transitions. Second operand 7 states. [2020-10-14 02:37:02,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:37:02,089 INFO L93 Difference]: Finished difference Result 12836 states and 15559 transitions. [2020-10-14 02:37:02,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:37:02,090 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 258 [2020-10-14 02:37:02,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:37:02,115 INFO L225 Difference]: With dead ends: 12836 [2020-10-14 02:37:02,115 INFO L226 Difference]: Without dead ends: 6708 [2020-10-14 02:37:02,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 02:37:02,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6708 states. [2020-10-14 02:37:02,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6708 to 6492. [2020-10-14 02:37:02,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6492 states. [2020-10-14 02:37:02,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6492 states to 6492 states and 7777 transitions. [2020-10-14 02:37:02,257 INFO L78 Accepts]: Start accepts. Automaton has 6492 states and 7777 transitions. Word has length 258 [2020-10-14 02:37:02,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:37:02,258 INFO L479 AbstractCegarLoop]: Abstraction has 6492 states and 7777 transitions. [2020-10-14 02:37:02,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:37:02,258 INFO L276 IsEmpty]: Start isEmpty. Operand 6492 states and 7777 transitions. [2020-10-14 02:37:02,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-10-14 02:37:02,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:37:02,268 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:37:02,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 02:37:02,269 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:37:02,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:37:02,269 INFO L82 PathProgramCache]: Analyzing trace with hash 536771983, now seen corresponding path program 1 times [2020-10-14 02:37:02,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:37:02,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987219356] [2020-10-14 02:37:02,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:37:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:02,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:02,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:03,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:03,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:03,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 293 [2020-10-14 02:37:03,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:37:03,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1503 [2020-10-14 02:37:03,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:03,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:03,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:03,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-14 02:37:03,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 02:37:03,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:03,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:37:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:03,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:03,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:03,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:37:03,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:03,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:37:03,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:03,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:03,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:03,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:37:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:03,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:03,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:03,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:37:03,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:03,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 02:37:03,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:03,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:03,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:03,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:37:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:03,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:04,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:04,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-14 02:37:04,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:04,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 02:37:04,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:04,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:04,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:37:04,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 02:37:04,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:04,090 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-14 02:37:04,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987219356] [2020-10-14 02:37:04,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:37:04,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:37:04,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37009151] [2020-10-14 02:37:04,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:37:04,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:37:04,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:37:04,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:37:04,092 INFO L87 Difference]: Start difference. First operand 6492 states and 7777 transitions. Second operand 5 states. [2020-10-14 02:37:06,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:37:06,073 INFO L93 Difference]: Finished difference Result 13553 states and 16457 transitions. [2020-10-14 02:37:06,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:37:06,074 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2020-10-14 02:37:06,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:37:06,094 INFO L225 Difference]: With dead ends: 13553 [2020-10-14 02:37:06,094 INFO L226 Difference]: Without dead ends: 7633 [2020-10-14 02:37:06,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 02:37:06,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7633 states. [2020-10-14 02:37:06,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7633 to 7253. [2020-10-14 02:37:06,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7253 states. [2020-10-14 02:37:06,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7253 states to 7253 states and 8845 transitions. [2020-10-14 02:37:06,243 INFO L78 Accepts]: Start accepts. Automaton has 7253 states and 8845 transitions. Word has length 281 [2020-10-14 02:37:06,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:37:06,244 INFO L479 AbstractCegarLoop]: Abstraction has 7253 states and 8845 transitions. [2020-10-14 02:37:06,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:37:06,244 INFO L276 IsEmpty]: Start isEmpty. Operand 7253 states and 8845 transitions. [2020-10-14 02:37:06,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-10-14 02:37:06,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:37:06,256 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:37:06,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 02:37:06,256 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:37:06,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:37:06,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1863934856, now seen corresponding path program 1 times [2020-10-14 02:37:06,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:37:06,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [94803126] [2020-10-14 02:37:06,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:37:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:06,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:06,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:06,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:06,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 293 [2020-10-14 02:37:06,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:37:06,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-10-14 02:37:06,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:06,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:06,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:06,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-14 02:37:06,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 02:37:06,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:06,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:37:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:06,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:06,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:06,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:37:06,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:06,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:37:06,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:06,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:06,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:06,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:06,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:06,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:37:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:06,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:06,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:06,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:37:06,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:06,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 02:37:06,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:06,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:06,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:06,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:06,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:06,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:06,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 02:37:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:07,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:07,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:07,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 02:37:07,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:07,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 02:37:07,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:07,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:37:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 02:37:07,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:07,137 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-14 02:37:07,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [94803126] [2020-10-14 02:37:07,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:37:07,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:37:07,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965521543] [2020-10-14 02:37:07,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:37:07,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:37:07,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:37:07,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:37:07,139 INFO L87 Difference]: Start difference. First operand 7253 states and 8845 transitions. Second operand 5 states. [2020-10-14 02:37:09,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:37:09,067 INFO L93 Difference]: Finished difference Result 8777 states and 10627 transitions. [2020-10-14 02:37:09,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:37:09,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2020-10-14 02:37:09,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:37:09,085 INFO L225 Difference]: With dead ends: 8777 [2020-10-14 02:37:09,086 INFO L226 Difference]: Without dead ends: 8775 [2020-10-14 02:37:09,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 02:37:09,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8775 states. [2020-10-14 02:37:09,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8775 to 7447. [2020-10-14 02:37:09,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7447 states. [2020-10-14 02:37:09,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7447 states to 7447 states and 9128 transitions. [2020-10-14 02:37:09,249 INFO L78 Accepts]: Start accepts. Automaton has 7447 states and 9128 transitions. Word has length 281 [2020-10-14 02:37:09,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:37:09,250 INFO L479 AbstractCegarLoop]: Abstraction has 7447 states and 9128 transitions. [2020-10-14 02:37:09,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:37:09,251 INFO L276 IsEmpty]: Start isEmpty. Operand 7447 states and 9128 transitions. [2020-10-14 02:37:09,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-10-14 02:37:09,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:37:09,272 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:37:09,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 02:37:09,272 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:37:09,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:37:09,273 INFO L82 PathProgramCache]: Analyzing trace with hash -114548647, now seen corresponding path program 1 times [2020-10-14 02:37:09,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:37:09,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753746257] [2020-10-14 02:37:09,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:37:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:09,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:09,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:10,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:10,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-10-14 02:37:10,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:37:10,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 896 [2020-10-14 02:37:10,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:10,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:10,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:10,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-10-14 02:37:10,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 02:37:10,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:10,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:37:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:10,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:10,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:10,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:37:10,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:10,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:37:10,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:10,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:10,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:10,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:10,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:37:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:10,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:10,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:10,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:37:10,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:10,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 02:37:10,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:10,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:10,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:10,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:10,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:10,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:37:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:10,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:10,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:10,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 02:37:10,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:10,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-14 02:37:10,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:10,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:10,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:37:10,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:10,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 02:37:10,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:37:10,774 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2020-10-14 02:37:10,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753746257] [2020-10-14 02:37:10,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:37:10,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:37:10,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176960422] [2020-10-14 02:37:10,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:37:10,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:37:10,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:37:10,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:37:10,777 INFO L87 Difference]: Start difference. First operand 7447 states and 9128 transitions. Second operand 5 states. [2020-10-14 02:37:12,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:37:12,478 INFO L93 Difference]: Finished difference Result 8777 states and 10615 transitions. [2020-10-14 02:37:12,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:37:12,479 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 300 [2020-10-14 02:37:12,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:37:12,494 INFO L225 Difference]: With dead ends: 8777 [2020-10-14 02:37:12,494 INFO L226 Difference]: Without dead ends: 8775 [2020-10-14 02:37:12,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 02:37:12,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8775 states. [2020-10-14 02:37:12,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8775 to 7259. [2020-10-14 02:37:12,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7259 states. [2020-10-14 02:37:12,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7259 states to 7259 states and 8867 transitions. [2020-10-14 02:37:12,635 INFO L78 Accepts]: Start accepts. Automaton has 7259 states and 8867 transitions. Word has length 300 [2020-10-14 02:37:12,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:37:12,636 INFO L479 AbstractCegarLoop]: Abstraction has 7259 states and 8867 transitions. [2020-10-14 02:37:12,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:37:12,636 INFO L276 IsEmpty]: Start isEmpty. Operand 7259 states and 8867 transitions. [2020-10-14 02:37:12,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-14 02:37:12,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:37:12,651 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:37:12,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 02:37:12,651 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:37:12,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:37:12,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1257591306, now seen corresponding path program 1 times [2020-10-14 02:37:12,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:37:12,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926728933] [2020-10-14 02:37:12,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:37:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:12,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:12,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:13,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:17,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:17,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:17,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 342 [2020-10-14 02:37:17,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:37:17,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 02:37:17,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:17,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:17,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:17,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-10-14 02:37:17,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:37:17,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:17,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:37:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:17,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:17,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:17,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:37:17,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:17,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:37:17,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:17,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:17,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:17,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:17,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:17,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:17,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:37:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:17,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:17,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:17,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-14 02:37:17,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:17,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 02:37:17,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:17,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:37:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-14 02:37:17,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:18,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-14 02:37:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:18,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:18,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:18,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:37:18,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:18,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 02:37:18,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:18,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:18,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:18,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:37:18,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:37:18,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:18,243 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 201 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:37:18,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926728933] [2020-10-14 02:37:18,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:37:18,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:37:18,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864561281] [2020-10-14 02:37:18,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:37:18,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:37:18,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:37:18,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:37:18,246 INFO L87 Difference]: Start difference. First operand 7259 states and 8867 transitions. Second operand 7 states. [2020-10-14 02:37:21,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:37:21,924 INFO L93 Difference]: Finished difference Result 16774 states and 20351 transitions. [2020-10-14 02:37:21,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 02:37:21,925 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 330 [2020-10-14 02:37:21,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:37:21,946 INFO L225 Difference]: With dead ends: 16774 [2020-10-14 02:37:21,947 INFO L226 Difference]: Without dead ends: 9897 [2020-10-14 02:37:21,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 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 02:37:21,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9897 states. [2020-10-14 02:37:22,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9897 to 9895. [2020-10-14 02:37:22,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9895 states. [2020-10-14 02:37:22,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9895 states to 9895 states and 11865 transitions. [2020-10-14 02:37:22,131 INFO L78 Accepts]: Start accepts. Automaton has 9895 states and 11865 transitions. Word has length 330 [2020-10-14 02:37:22,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:37:22,132 INFO L479 AbstractCegarLoop]: Abstraction has 9895 states and 11865 transitions. [2020-10-14 02:37:22,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:37:22,132 INFO L276 IsEmpty]: Start isEmpty. Operand 9895 states and 11865 transitions. [2020-10-14 02:37:22,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-10-14 02:37:22,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:37:22,149 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:37:22,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 02:37:22,149 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:37:22,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:37:22,150 INFO L82 PathProgramCache]: Analyzing trace with hash 638002730, now seen corresponding path program 1 times [2020-10-14 02:37:22,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:37:22,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903264894] [2020-10-14 02:37:22,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:37:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:22,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:22,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:23,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:26,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:26,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 368 [2020-10-14 02:37:26,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:37:26,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4032 [2020-10-14 02:37:26,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:26,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:26,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:26,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 02:37:26,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 02:37:26,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:26,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:37:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:26,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:26,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:26,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:37:26,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:26,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:37:26,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:26,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:26,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:26,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:26,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:26,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:26,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:37:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:26,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:26,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:26,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:37:26,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:26,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 02:37:26,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:26,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:37:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 02:37:26,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:26,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:37:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:26,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:26,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:26,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:37:26,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:26,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 02:37:26,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:26,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:26,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:26,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:37:26,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 02:37:26,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:26,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-14 02:37:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:26,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:26,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:26,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:37:26,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:26,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 02:37:26,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:26,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:26,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:26,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 02:37:26,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:26,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:26,640 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 230 proven. 101 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-14 02:37:26,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903264894] [2020-10-14 02:37:26,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:37:26,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:37:26,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128166267] [2020-10-14 02:37:26,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:37:26,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:37:26,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:37:26,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:37:26,642 INFO L87 Difference]: Start difference. First operand 9895 states and 11865 transitions. Second operand 7 states. [2020-10-14 02:37:30,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:37:30,310 INFO L93 Difference]: Finished difference Result 23476 states and 29812 transitions. [2020-10-14 02:37:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:37:30,311 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 354 [2020-10-14 02:37:30,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:37:30,351 INFO L225 Difference]: With dead ends: 23476 [2020-10-14 02:37:30,351 INFO L226 Difference]: Without dead ends: 12463 [2020-10-14 02:37:30,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 02:37:30,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12463 states. [2020-10-14 02:37:30,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12463 to 10350. [2020-10-14 02:37:30,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10350 states. [2020-10-14 02:37:30,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10350 states to 10350 states and 12553 transitions. [2020-10-14 02:37:30,614 INFO L78 Accepts]: Start accepts. Automaton has 10350 states and 12553 transitions. Word has length 354 [2020-10-14 02:37:30,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:37:30,615 INFO L479 AbstractCegarLoop]: Abstraction has 10350 states and 12553 transitions. [2020-10-14 02:37:30,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:37:30,615 INFO L276 IsEmpty]: Start isEmpty. Operand 10350 states and 12553 transitions. [2020-10-14 02:37:30,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-10-14 02:37:30,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:37:30,626 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:37:30,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 02:37:30,627 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:37:30,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:37:30,627 INFO L82 PathProgramCache]: Analyzing trace with hash -670415290, now seen corresponding path program 1 times [2020-10-14 02:37:30,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:37:30,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086762285] [2020-10-14 02:37:30,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:37:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:30,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:30,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:30,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:34,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:34,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 368 [2020-10-14 02:37:34,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:37:34,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3856 [2020-10-14 02:37:34,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:34,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:34,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:34,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 02:37:34,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 02:37:34,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:34,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:37:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:34,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:34,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:34,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:37:34,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:34,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:37:34,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:34,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:34,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:34,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:34,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:34,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:34,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:37:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:34,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:34,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:34,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:37:34,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:34,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 02:37:34,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:34,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:34,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:37:34,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:34,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 02:37:34,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:34,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:37:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:34,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:34,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:34,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:37:34,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:34,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 02:37:34,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:34,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:34,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:34,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:37:34,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 02:37:34,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:34,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 02:37:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:34,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:34,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:34,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 02:37:34,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:34,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 02:37:34,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:34,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:34,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:34,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-14 02:37:34,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:34,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 230 proven. 104 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-14 02:37:34,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086762285] [2020-10-14 02:37:34,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:37:34,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:37:34,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780361228] [2020-10-14 02:37:34,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:37:34,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:37:34,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:37:34,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:37:34,945 INFO L87 Difference]: Start difference. First operand 10350 states and 12553 transitions. Second operand 7 states. [2020-10-14 02:37:37,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:37:37,809 INFO L93 Difference]: Finished difference Result 22982 states and 28060 transitions. [2020-10-14 02:37:37,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:37:37,810 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 354 [2020-10-14 02:37:37,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:37:37,845 INFO L225 Difference]: With dead ends: 22982 [2020-10-14 02:37:37,846 INFO L226 Difference]: Without dead ends: 13972 [2020-10-14 02:37:37,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 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 02:37:37,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13972 states. [2020-10-14 02:37:38,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13972 to 12248. [2020-10-14 02:37:38,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12248 states. [2020-10-14 02:37:38,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12248 states to 12248 states and 14759 transitions. [2020-10-14 02:37:38,125 INFO L78 Accepts]: Start accepts. Automaton has 12248 states and 14759 transitions. Word has length 354 [2020-10-14 02:37:38,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:37:38,126 INFO L479 AbstractCegarLoop]: Abstraction has 12248 states and 14759 transitions. [2020-10-14 02:37:38,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:37:38,126 INFO L276 IsEmpty]: Start isEmpty. Operand 12248 states and 14759 transitions. [2020-10-14 02:37:38,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2020-10-14 02:37:38,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:37:38,140 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:37:38,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 02:37:38,141 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:37:38,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:37:38,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1332547579, now seen corresponding path program 1 times [2020-10-14 02:37:38,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:37:38,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349720960] [2020-10-14 02:37:38,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:37:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:38,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:38,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:40,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:43,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:43,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 404 [2020-10-14 02:37:43,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:37:43,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 02:37:43,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:43,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:43,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:43,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 238 [2020-10-14 02:37:43,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:37:43,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:43,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:37:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:43,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:43,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:43,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:37:43,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:43,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:37:43,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:43,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:43,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:43,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:43,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:43,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:43,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:37:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:43,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:43,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:43,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:37:43,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:43,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 02:37:43,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:43,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:43,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:43,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:43,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:43,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:43,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:37:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:43,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:43,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:43,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 02:37:43,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:43,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 02:37:43,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:43,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:43,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:37:43,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:43,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 02:37:43,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:43,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-14 02:37:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:43,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:43,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:43,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:37:43,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:43,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 02:37:43,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:43,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:43,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:37:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:37:43,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:43,704 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-14 02:37:43,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349720960] [2020-10-14 02:37:43,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:37:43,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:37:43,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520829688] [2020-10-14 02:37:43,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:37:43,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:37:43,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:37:43,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:37:43,706 INFO L87 Difference]: Start difference. First operand 12248 states and 14759 transitions. Second operand 7 states. [2020-10-14 02:37:47,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:37:47,309 INFO L93 Difference]: Finished difference Result 23934 states and 28892 transitions. [2020-10-14 02:37:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:37:47,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 390 [2020-10-14 02:37:47,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:37:47,337 INFO L225 Difference]: With dead ends: 23934 [2020-10-14 02:37:47,337 INFO L226 Difference]: Without dead ends: 12274 [2020-10-14 02:37:47,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 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 02:37:47,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12274 states. [2020-10-14 02:37:47,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12274 to 12248. [2020-10-14 02:37:47,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12248 states. [2020-10-14 02:37:47,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12248 states to 12248 states and 14727 transitions. [2020-10-14 02:37:47,571 INFO L78 Accepts]: Start accepts. Automaton has 12248 states and 14727 transitions. Word has length 390 [2020-10-14 02:37:47,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:37:47,572 INFO L479 AbstractCegarLoop]: Abstraction has 12248 states and 14727 transitions. [2020-10-14 02:37:47,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:37:47,572 INFO L276 IsEmpty]: Start isEmpty. Operand 12248 states and 14727 transitions. [2020-10-14 02:37:47,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-10-14 02:37:47,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:37:47,594 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:47,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 02:37:47,594 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:37:47,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:37:47,595 INFO L82 PathProgramCache]: Analyzing trace with hash 84971668, now seen corresponding path program 1 times [2020-10-14 02:37:47,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:37:47,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545049810] [2020-10-14 02:37:47,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:37:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:47,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:48,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:48,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:50,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:50,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 411 [2020-10-14 02:37:50,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:37:50,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2388 [2020-10-14 02:37:50,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:50,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 02:37:50,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 02:37:50,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:50,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:37:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:50,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:50,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:50,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:37:50,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:50,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:37:50,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:50,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:50,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:50,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:50,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:50,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:50,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:37:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:50,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:50,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:50,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:37:50,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:50,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 02:37:50,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:50,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:50,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:37:50,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:50,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 02:37:50,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:50,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:37:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:50,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:50,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:50,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:37:50,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:50,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 02:37:50,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:50,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:37:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 02:37:50,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:50,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-10-14 02:37:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:50,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:50,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:50,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:37:50,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:50,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 02:37:50,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:50,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:50,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:50,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 02:37:50,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:50,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:50,527 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 244 proven. 101 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 02:37:50,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545049810] [2020-10-14 02:37:50,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:37:50,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:37:50,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242694761] [2020-10-14 02:37:50,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:37:50,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:37:50,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:37:50,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:37:50,528 INFO L87 Difference]: Start difference. First operand 12248 states and 14727 transitions. Second operand 7 states. [2020-10-14 02:37:53,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:37:53,598 INFO L93 Difference]: Finished difference Result 26302 states and 33380 transitions. [2020-10-14 02:37:53,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:37:53,599 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 397 [2020-10-14 02:37:53,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:37:53,643 INFO L225 Difference]: With dead ends: 26302 [2020-10-14 02:37:53,644 INFO L226 Difference]: Without dead ends: 14642 [2020-10-14 02:37:53,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:37:53,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14642 states. [2020-10-14 02:37:53,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14642 to 13560. [2020-10-14 02:37:53,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13560 states. [2020-10-14 02:37:53,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13560 states to 13560 states and 16182 transitions. [2020-10-14 02:37:53,986 INFO L78 Accepts]: Start accepts. Automaton has 13560 states and 16182 transitions. Word has length 397 [2020-10-14 02:37:53,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:37:53,987 INFO L479 AbstractCegarLoop]: Abstraction has 13560 states and 16182 transitions. [2020-10-14 02:37:53,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:37:53,987 INFO L276 IsEmpty]: Start isEmpty. Operand 13560 states and 16182 transitions. [2020-10-14 02:37:54,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-10-14 02:37:54,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:37:54,005 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:54,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 02:37:54,005 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:37:54,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:37:54,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1223446352, now seen corresponding path program 1 times [2020-10-14 02:37:54,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:37:54,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018134954] [2020-10-14 02:37:54,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:37:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:54,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:54,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:55,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:55,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 411 [2020-10-14 02:37:55,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:37:55,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1516 [2020-10-14 02:37:55,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:55,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:55,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:55,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 02:37:55,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:37:55,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:55,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:37:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:55,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:55,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:55,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:37:55,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:55,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:37:55,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:55,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:55,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:55,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:55,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:55,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:55,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:37:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:55,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:55,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:55,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:37:55,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:55,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 02:37:55,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:55,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:55,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:37:55,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:55,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 02:37:55,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:55,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:37:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:55,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:55,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:55,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:37:55,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:55,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 02:37:55,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:55,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:37:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 02:37:55,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:55,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-14 02:37:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:55,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:56,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:56,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 02:37:56,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:56,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 02:37:56,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:56,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:56,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:56,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-14 02:37:56,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:56,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:56,096 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 249 proven. 104 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-14 02:37:56,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018134954] [2020-10-14 02:37:56,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:37:56,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:37:56,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605183550] [2020-10-14 02:37:56,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:37:56,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:37:56,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:37:56,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:37:56,099 INFO L87 Difference]: Start difference. First operand 13560 states and 16182 transitions. Second operand 7 states. [2020-10-14 02:37:58,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:37:58,761 INFO L93 Difference]: Finished difference Result 27534 states and 32710 transitions. [2020-10-14 02:37:58,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:37:58,762 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 397 [2020-10-14 02:37:58,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:37:58,795 INFO L225 Difference]: With dead ends: 27534 [2020-10-14 02:37:58,795 INFO L226 Difference]: Without dead ends: 14746 [2020-10-14 02:37:58,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 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 02:37:58,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14746 states. [2020-10-14 02:37:59,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14746 to 13762. [2020-10-14 02:37:59,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13762 states. [2020-10-14 02:37:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13762 states to 13762 states and 16057 transitions. [2020-10-14 02:37:59,065 INFO L78 Accepts]: Start accepts. Automaton has 13762 states and 16057 transitions. Word has length 397 [2020-10-14 02:37:59,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:37:59,066 INFO L479 AbstractCegarLoop]: Abstraction has 13762 states and 16057 transitions. [2020-10-14 02:37:59,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:37:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 13762 states and 16057 transitions. [2020-10-14 02:37:59,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2020-10-14 02:37:59,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:37:59,079 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:37:59,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 02:37:59,080 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:37:59,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:37:59,080 INFO L82 PathProgramCache]: Analyzing trace with hash 636376888, now seen corresponding path program 1 times [2020-10-14 02:37:59,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:37:59,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623328660] [2020-10-14 02:37:59,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:37:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:59,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:59,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:59,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 425 [2020-10-14 02:37:59,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:59,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-10-14 02:37:59,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:59,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:59,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:37:59,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 02:37:59,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:37:59,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:59,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:37:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:59,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:59,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:59,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:37:59,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:59,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:37:59,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:59,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:59,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:59,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:37:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:59,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:37:59,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:37:59,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:37:59,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:37:59,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 02:37:59,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:37:59,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:37:59,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:37:59,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:37:59,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:37:59,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:37:59,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:37:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:37:59,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:00,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:00,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:38:00,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:00,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 02:38:00,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:00,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:00,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:38:00,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:00,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 02:38:00,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:00,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 02:38:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:00,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:00,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:00,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:38:00,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:00,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 02:38:00,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:00,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:00,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:38:00,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:38:00,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:38:00,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:00,435 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 360 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-14 02:38:00,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623328660] [2020-10-14 02:38:00,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:38:00,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:38:00,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500516568] [2020-10-14 02:38:00,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:38:00,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:38:00,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:38:00,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:38:00,437 INFO L87 Difference]: Start difference. First operand 13762 states and 16057 transitions. Second operand 7 states. [2020-10-14 02:38:03,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:38:03,458 INFO L93 Difference]: Finished difference Result 27245 states and 33050 transitions. [2020-10-14 02:38:03,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:38:03,461 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 411 [2020-10-14 02:38:03,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:38:03,499 INFO L225 Difference]: With dead ends: 27245 [2020-10-14 02:38:03,500 INFO L226 Difference]: Without dead ends: 14255 [2020-10-14 02:38:03,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 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 02:38:03,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14255 states. [2020-10-14 02:38:03,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14255 to 13764. [2020-10-14 02:38:03,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13764 states. [2020-10-14 02:38:03,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13764 states to 13764 states and 16003 transitions. [2020-10-14 02:38:03,782 INFO L78 Accepts]: Start accepts. Automaton has 13764 states and 16003 transitions. Word has length 411 [2020-10-14 02:38:03,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:38:03,783 INFO L479 AbstractCegarLoop]: Abstraction has 13764 states and 16003 transitions. [2020-10-14 02:38:03,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:38:03,783 INFO L276 IsEmpty]: Start isEmpty. Operand 13764 states and 16003 transitions. [2020-10-14 02:38:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2020-10-14 02:38:03,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:38:03,795 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:38:03,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 02:38:03,795 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:38:03,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:38:03,796 INFO L82 PathProgramCache]: Analyzing trace with hash 367633382, now seen corresponding path program 1 times [2020-10-14 02:38:03,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:38:03,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702139537] [2020-10-14 02:38:03,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:38:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:03,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:03,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:04,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:04,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:04,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:04,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:05,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:07,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:07,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 436 [2020-10-14 02:38:07,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 02:38:07,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3827 [2020-10-14 02:38:07,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:07,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:07,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:38:07,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:38:07,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-14 02:38:07,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:07,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:38:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:07,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:07,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:07,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:38:07,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:07,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:38:07,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:07,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:07,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:38:07,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:07,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:38:07,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:07,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:38:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:07,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:07,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:07,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:07,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 02:38:07,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:38:07,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 02:38:07,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:07,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:07,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:38:07,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:07,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 02:38:07,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:07,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 02:38:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:07,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:07,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:07,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:07,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 02:38:07,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:38:07,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 02:38:07,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:07,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:07,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:38:07,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-10-14 02:38:07,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 02:38:07,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:08,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2020-10-14 02:38:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:08,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:08,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:08,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 02:38:08,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:08,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 02:38:08,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:08,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-14 02:38:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:08,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:08,165 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2020-10-14 02:38:08,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702139537] [2020-10-14 02:38:08,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:38:08,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 02:38:08,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77150294] [2020-10-14 02:38:08,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 02:38:08,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:38:08,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 02:38:08,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:38:08,168 INFO L87 Difference]: Start difference. First operand 13764 states and 16003 transitions. Second operand 6 states. [2020-10-14 02:38:09,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:38:09,947 INFO L93 Difference]: Finished difference Result 26184 states and 30486 transitions. [2020-10-14 02:38:09,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:38:09,948 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 422 [2020-10-14 02:38:09,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:38:09,970 INFO L225 Difference]: With dead ends: 26184 [2020-10-14 02:38:09,970 INFO L226 Difference]: Without dead ends: 13192 [2020-10-14 02:38:09,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:38:09,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13192 states. [2020-10-14 02:38:10,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13192 to 12965. [2020-10-14 02:38:10,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12965 states. [2020-10-14 02:38:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12965 states to 12965 states and 15044 transitions. [2020-10-14 02:38:10,160 INFO L78 Accepts]: Start accepts. Automaton has 12965 states and 15044 transitions. Word has length 422 [2020-10-14 02:38:10,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:38:10,160 INFO L479 AbstractCegarLoop]: Abstraction has 12965 states and 15044 transitions. [2020-10-14 02:38:10,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 02:38:10,160 INFO L276 IsEmpty]: Start isEmpty. Operand 12965 states and 15044 transitions. [2020-10-14 02:38:10,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-10-14 02:38:10,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:38:10,171 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:38:10,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 02:38:10,171 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:38:10,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:38:10,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1831234086, now seen corresponding path program 1 times [2020-10-14 02:38:10,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:38:10,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226311427] [2020-10-14 02:38:10,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:38:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:10,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:10,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:10,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:15,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:15,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 456 [2020-10-14 02:38:15,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:38:15,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 02:38:15,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:15,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:15,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:38:15,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-14 02:38:15,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:38:15,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:15,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:38:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:15,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:15,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:15,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:38:15,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:15,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:38:15,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:15,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:15,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:15,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:15,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:15,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:15,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:38:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:15,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:15,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:15,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-14 02:38:15,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:15,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-14 02:38:15,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:15,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:15,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:38:15,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:15,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-14 02:38:15,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:15,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-14 02:38:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:15,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:15,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:15,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:38:15,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:15,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 02:38:15,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:15,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:15,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:38:15,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:38:15,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 02:38:15,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:15,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-14 02:38:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:15,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:15,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:15,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 02:38:15,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:15,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 02:38:15,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:15,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:15,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:15,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-14 02:38:15,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:15,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:15,803 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 249 proven. 104 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-14 02:38:15,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226311427] [2020-10-14 02:38:15,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:38:15,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:38:15,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177368743] [2020-10-14 02:38:15,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:38:15,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:38:15,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:38:15,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:38:15,805 INFO L87 Difference]: Start difference. First operand 12965 states and 15044 transitions. Second operand 7 states. [2020-10-14 02:38:18,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:38:18,425 INFO L93 Difference]: Finished difference Result 25576 states and 29659 transitions. [2020-10-14 02:38:18,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:38:18,426 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 442 [2020-10-14 02:38:18,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:38:18,446 INFO L225 Difference]: With dead ends: 25576 [2020-10-14 02:38:18,446 INFO L226 Difference]: Without dead ends: 13383 [2020-10-14 02:38:18,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 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 02:38:18,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13383 states. [2020-10-14 02:38:18,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13383 to 13151. [2020-10-14 02:38:18,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13151 states. [2020-10-14 02:38:18,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13151 states to 13151 states and 15177 transitions. [2020-10-14 02:38:18,656 INFO L78 Accepts]: Start accepts. Automaton has 13151 states and 15177 transitions. Word has length 442 [2020-10-14 02:38:18,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:38:18,657 INFO L479 AbstractCegarLoop]: Abstraction has 13151 states and 15177 transitions. [2020-10-14 02:38:18,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:38:18,657 INFO L276 IsEmpty]: Start isEmpty. Operand 13151 states and 15177 transitions. [2020-10-14 02:38:18,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2020-10-14 02:38:18,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:38:18,671 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:38:18,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 02:38:18,672 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:38:18,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:38:18,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1130691923, now seen corresponding path program 1 times [2020-10-14 02:38:18,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:38:18,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563219561] [2020-10-14 02:38:18,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:38:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:18,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:18,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:20,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:20,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 494 [2020-10-14 02:38:20,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:38:20,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1408 [2020-10-14 02:38:20,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:20,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:20,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:38:20,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 224 [2020-10-14 02:38:20,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 02:38:20,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:20,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:38:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:20,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:20,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:20,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:38:20,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:20,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:38:20,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:20,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:20,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:20,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:20,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:20,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:20,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:38:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:20,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:20,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:20,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:38:20,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:20,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 02:38:20,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:20,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:20,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:20,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:20,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:20,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:20,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 02:38:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:20,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:20,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:20,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:38:20,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:20,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 02:38:20,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:20,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:38:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 02:38:20,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:20,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 02:38:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:20,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:20,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:20,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:38:20,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:20,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 02:38:20,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:20,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:20,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:38:20,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:38:20,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 02:38:20,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:20,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-10-14 02:38:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:20,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:20,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:20,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:38:20,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:20,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 02:38:20,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:20,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:20,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:20,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 02:38:20,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:20,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:20,827 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 383 proven. 101 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2020-10-14 02:38:20,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563219561] [2020-10-14 02:38:20,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:38:20,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:38:20,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53731231] [2020-10-14 02:38:20,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:38:20,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:38:20,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:38:20,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:38:20,828 INFO L87 Difference]: Start difference. First operand 13151 states and 15177 transitions. Second operand 7 states. [2020-10-14 02:38:25,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:38:25,001 INFO L93 Difference]: Finished difference Result 26608 states and 32000 transitions. [2020-10-14 02:38:25,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:38:25,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 478 [2020-10-14 02:38:25,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:38:25,031 INFO L225 Difference]: With dead ends: 26608 [2020-10-14 02:38:25,031 INFO L226 Difference]: Without dead ends: 14035 [2020-10-14 02:38:25,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:38:25,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14035 states. [2020-10-14 02:38:25,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14035 to 13535. [2020-10-14 02:38:25,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13535 states. [2020-10-14 02:38:25,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13535 states to 13535 states and 15644 transitions. [2020-10-14 02:38:25,296 INFO L78 Accepts]: Start accepts. Automaton has 13535 states and 15644 transitions. Word has length 478 [2020-10-14 02:38:25,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:38:25,297 INFO L479 AbstractCegarLoop]: Abstraction has 13535 states and 15644 transitions. [2020-10-14 02:38:25,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:38:25,297 INFO L276 IsEmpty]: Start isEmpty. Operand 13535 states and 15644 transitions. [2020-10-14 02:38:25,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2020-10-14 02:38:25,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:38:25,317 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 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 02:38:25,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 02:38:25,318 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:38:25,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:38:25,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1597907716, now seen corresponding path program 1 times [2020-10-14 02:38:25,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:38:25,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79041479] [2020-10-14 02:38:25,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:38:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:25,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:25,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:27,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:27,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 507 [2020-10-14 02:38:27,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:38:27,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2135 [2020-10-14 02:38:27,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:27,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:27,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:38:27,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 346 [2020-10-14 02:38:27,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 02:38:27,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:27,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:38:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:27,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:27,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:27,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:38:27,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:27,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:38:27,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:27,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:27,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:27,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:38:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:27,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:27,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:27,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:38:27,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:27,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 02:38:27,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:27,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:27,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:27,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:38:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:27,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:27,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:27,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:38:27,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:27,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 02:38:27,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:27,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:27,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:27,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:27,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:27,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:27,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 02:38:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:27,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:27,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:27,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 02:38:27,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:27,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 02:38:27,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:27,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:38:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 02:38:27,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:27,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-10-14 02:38:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:27,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:27,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:27,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 02:38:27,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:27,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 02:38:27,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:27,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:38:27,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:38:27,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 02:38:27,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:38:28,242 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 484 proven. 2 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2020-10-14 02:38:28,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79041479] [2020-10-14 02:38:28,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:38:28,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:38:28,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668915180] [2020-10-14 02:38:28,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:38:28,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:38:28,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:38:28,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:38:28,244 INFO L87 Difference]: Start difference. First operand 13535 states and 15644 transitions. Second operand 7 states. [2020-10-14 02:38:31,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:38:31,199 INFO L93 Difference]: Finished difference Result 26909 states and 31191 transitions. [2020-10-14 02:38:31,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:38:31,201 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 491 [2020-10-14 02:38:31,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:38:31,222 INFO L225 Difference]: With dead ends: 26909 [2020-10-14 02:38:31,222 INFO L226 Difference]: Without dead ends: 13570 [2020-10-14 02:38:31,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:38:31,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13570 states. [2020-10-14 02:38:31,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13570 to 13509. [2020-10-14 02:38:31,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13509 states. [2020-10-14 02:38:31,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13509 states to 13509 states and 15266 transitions. [2020-10-14 02:38:31,432 INFO L78 Accepts]: Start accepts. Automaton has 13509 states and 15266 transitions. Word has length 491 [2020-10-14 02:38:31,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:38:31,433 INFO L479 AbstractCegarLoop]: Abstraction has 13509 states and 15266 transitions. [2020-10-14 02:38:31,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:38:31,433 INFO L276 IsEmpty]: Start isEmpty. Operand 13509 states and 15266 transitions. [2020-10-14 02:38:31,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2020-10-14 02:38:31,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:38:31,445 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:38:31,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 02:38:31,445 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:38:31,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:38:31,446 INFO L82 PathProgramCache]: Analyzing trace with hash 361971616, now seen corresponding path program 1 times [2020-10-14 02:38:31,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:38:31,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675884376] [2020-10-14 02:38:31,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:38:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:31,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:32,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:33,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:33,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 512 [2020-10-14 02:38:33,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:38:33,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1588 [2020-10-14 02:38:33,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:33,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:33,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:38:33,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 346 [2020-10-14 02:38:33,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 02:38:33,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:33,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:38:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:33,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:33,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:33,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:38:33,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:33,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:38:33,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:33,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:33,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:33,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:33,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:33,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:38:33,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:38:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:33,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:33,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:33,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 02:38:33,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:33,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 02:38:33,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:33,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:33,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:33,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:33,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:33,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:33,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 02:38:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:33,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:33,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:33,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:38:33,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:33,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 02:38:33,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:33,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:33,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:33,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:33,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:33,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:33,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 02:38:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:33,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:33,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:33,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 02:38:33,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:33,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 02:38:33,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:33,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:33,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:38:33,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:33,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 02:38:33,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:33,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-10-14 02:38:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:33,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:33,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:33,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:38:33,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:33,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 02:38:33,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:33,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:33,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:38:33,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:38:33,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:38:33,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:33,860 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 494 proven. 2 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2020-10-14 02:38:33,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675884376] [2020-10-14 02:38:33,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:38:33,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:38:33,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024127865] [2020-10-14 02:38:33,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:38:33,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:38:33,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:38:33,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:38:33,862 INFO L87 Difference]: Start difference. First operand 13509 states and 15266 transitions. Second operand 7 states. [2020-10-14 02:38:37,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:38:37,170 INFO L93 Difference]: Finished difference Result 27060 states and 30570 transitions. [2020-10-14 02:38:37,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:38:37,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 496 [2020-10-14 02:38:37,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:38:37,192 INFO L225 Difference]: With dead ends: 27060 [2020-10-14 02:38:37,192 INFO L226 Difference]: Without dead ends: 13941 [2020-10-14 02:38:37,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:38:37,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13941 states. [2020-10-14 02:38:37,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13941 to 13714. [2020-10-14 02:38:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13714 states. [2020-10-14 02:38:37,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13714 states to 13714 states and 15306 transitions. [2020-10-14 02:38:37,358 INFO L78 Accepts]: Start accepts. Automaton has 13714 states and 15306 transitions. Word has length 496 [2020-10-14 02:38:37,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:38:37,358 INFO L479 AbstractCegarLoop]: Abstraction has 13714 states and 15306 transitions. [2020-10-14 02:38:37,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:38:37,358 INFO L276 IsEmpty]: Start isEmpty. Operand 13714 states and 15306 transitions. [2020-10-14 02:38:37,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2020-10-14 02:38:37,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:38:37,371 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 02:38:37,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 02:38:37,371 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:38:37,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:38:37,371 INFO L82 PathProgramCache]: Analyzing trace with hash -447684155, now seen corresponding path program 1 times [2020-10-14 02:38:37,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:38:37,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995508235] [2020-10-14 02:38:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:38:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:37,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:37,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:38,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:39,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:39,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 524 [2020-10-14 02:38:39,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:38:39,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2444 [2020-10-14 02:38:39,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:39,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:39,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:38:39,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 361 [2020-10-14 02:38:39,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:38:39,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:39,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:38:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:39,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:39,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:39,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:38:39,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:39,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:38:39,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:39,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:39,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:39,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:39,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:39,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:39,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:38:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:39,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:40,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:40,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:38:40,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:40,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 02:38:40,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:40,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:40,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:40,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 02:38:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:40,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:40,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:40,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:38:40,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:40,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 02:38:40,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:40,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:40,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:40,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:40,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:40,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:40,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 02:38:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:40,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:40,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:40,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:38:40,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:40,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 02:38:40,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:40,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:38:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-14 02:38:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:38:40,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:40,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-14 02:38:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:40,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:40,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:40,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 02:38:40,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:40,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 02:38:40,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:40,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:40,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:40,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-14 02:38:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:40,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:38:40,521 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 202 proven. 2 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2020-10-14 02:38:40,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995508235] [2020-10-14 02:38:40,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:38:40,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:38:40,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081670189] [2020-10-14 02:38:40,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:38:40,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:38:40,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:38:40,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:38:40,523 INFO L87 Difference]: Start difference. First operand 13714 states and 15306 transitions. Second operand 5 states. [2020-10-14 02:38:43,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:38:43,020 INFO L93 Difference]: Finished difference Result 26269 states and 29215 transitions. [2020-10-14 02:38:43,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:38:43,022 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 508 [2020-10-14 02:38:43,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:38:43,040 INFO L225 Difference]: With dead ends: 26269 [2020-10-14 02:38:43,040 INFO L226 Difference]: Without dead ends: 12749 [2020-10-14 02:38:43,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:38:43,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12749 states. [2020-10-14 02:38:43,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12749 to 12513. [2020-10-14 02:38:43,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12513 states. [2020-10-14 02:38:43,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12513 states to 12513 states and 13673 transitions. [2020-10-14 02:38:43,194 INFO L78 Accepts]: Start accepts. Automaton has 12513 states and 13673 transitions. Word has length 508 [2020-10-14 02:38:43,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:38:43,195 INFO L479 AbstractCegarLoop]: Abstraction has 12513 states and 13673 transitions. [2020-10-14 02:38:43,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:38:43,195 INFO L276 IsEmpty]: Start isEmpty. Operand 12513 states and 13673 transitions. [2020-10-14 02:38:43,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2020-10-14 02:38:43,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:38:43,208 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 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 02:38:43,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 02:38:43,209 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:38:43,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:38:43,209 INFO L82 PathProgramCache]: Analyzing trace with hash 963768414, now seen corresponding path program 1 times [2020-10-14 02:38:43,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:38:43,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622496227] [2020-10-14 02:38:43,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:38:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:43,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:43,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:44,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:46,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:48,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:48,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 547 [2020-10-14 02:38:48,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:38:48,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 02:38:48,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:48,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:38:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 362 [2020-10-14 02:38:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 02:38:48,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:48,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:38:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:48,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:48,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:48,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:38:48,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:48,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:38:48,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:48,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:48,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:48,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:48,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:48,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:48,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:38:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:48,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:48,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:48,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:38:48,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:48,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 02:38:48,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:48,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:48,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:48,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:48,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:48,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:48,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 02:38:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:48,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:48,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:48,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:38:48,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:48,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 02:38:48,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:48,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:48,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:48,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:48,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:48,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:48,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 02:38:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:48,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:48,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:48,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 02:38:48,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:48,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 02:38:48,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:48,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:38:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 02:38:48,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:48,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2020-10-14 02:38:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:48,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:48,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:48,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 02:38:48,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:48,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-14 02:38:48,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:48,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:48,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:38:48,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:38:48,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 02:38:48,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:38:49,217 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 528 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-10-14 02:38:49,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622496227] [2020-10-14 02:38:49,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:38:49,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:38:49,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483427476] [2020-10-14 02:38:49,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:38:49,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:38:49,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:38:49,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:38:49,218 INFO L87 Difference]: Start difference. First operand 12513 states and 13673 transitions. Second operand 7 states. [2020-10-14 02:38:51,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:38:51,757 INFO L93 Difference]: Finished difference Result 25075 states and 27408 transitions. [2020-10-14 02:38:51,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:38:51,758 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 531 [2020-10-14 02:38:51,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:38:51,776 INFO L225 Difference]: With dead ends: 25075 [2020-10-14 02:38:51,776 INFO L226 Difference]: Without dead ends: 12952 [2020-10-14 02:38:51,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:38:51,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12952 states. [2020-10-14 02:38:51,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12952 to 12905. [2020-10-14 02:38:51,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12905 states. [2020-10-14 02:38:51,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12905 states to 12905 states and 14096 transitions. [2020-10-14 02:38:51,946 INFO L78 Accepts]: Start accepts. Automaton has 12905 states and 14096 transitions. Word has length 531 [2020-10-14 02:38:51,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:38:51,947 INFO L479 AbstractCegarLoop]: Abstraction has 12905 states and 14096 transitions. [2020-10-14 02:38:51,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:38:51,947 INFO L276 IsEmpty]: Start isEmpty. Operand 12905 states and 14096 transitions. [2020-10-14 02:38:51,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2020-10-14 02:38:51,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:38:51,957 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 02:38:51,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 02:38:51,958 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:38:51,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:38:51,958 INFO L82 PathProgramCache]: Analyzing trace with hash -750620503, now seen corresponding path program 1 times [2020-10-14 02:38:51,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:38:51,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361715153] [2020-10-14 02:38:51,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:38:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:52,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:52,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:52,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:55,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:57,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:57,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 548 [2020-10-14 02:38:57,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:38:57,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 02:38:57,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:57,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:57,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 02:38:57,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 361 [2020-10-14 02:38:57,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 02:38:57,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:57,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:38:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:57,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:57,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:57,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:38:57,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:57,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:38:57,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:57,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:57,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:57,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:38:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:57,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:57,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:57,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 02:38:57,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:57,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 02:38:57,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:57,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:57,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:57,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:57,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:57,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:57,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 02:38:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:57,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:57,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:57,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 02:38:57,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:57,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 02:38:57,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:57,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:57,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:38:57,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:57,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:38:57,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:57,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 02:38:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:57,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:57,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:57,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 02:38:57,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:57,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 02:38:57,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:57,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:57,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 02:38:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:38:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 02:38:57,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:57,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-14 02:38:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:38:57,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:38:57,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:38:57,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 02:38:57,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:38:57,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 02:38:57,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:38:57,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:38:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:38:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:38:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 02:38:57,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:38:58,039 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 528 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-10-14 02:38:58,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361715153] [2020-10-14 02:38:58,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:38:58,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 02:38:58,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610075617] [2020-10-14 02:38:58,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 02:38:58,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:38:58,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 02:38:58,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 02:38:58,041 INFO L87 Difference]: Start difference. First operand 12905 states and 14096 transitions. Second operand 8 states. [2020-10-14 02:39:01,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:39:01,623 INFO L93 Difference]: Finished difference Result 25836 states and 28218 transitions. [2020-10-14 02:39:01,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 02:39:01,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 532 [2020-10-14 02:39:01,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:39:01,648 INFO L225 Difference]: With dead ends: 25836 [2020-10-14 02:39:01,648 INFO L226 Difference]: Without dead ends: 13321 [2020-10-14 02:39:01,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-10-14 02:39:01,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13321 states. [2020-10-14 02:39:01,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13321 to 12337. [2020-10-14 02:39:01,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12337 states. [2020-10-14 02:39:01,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12337 states to 12337 states and 13455 transitions. [2020-10-14 02:39:01,800 INFO L78 Accepts]: Start accepts. Automaton has 12337 states and 13455 transitions. Word has length 532 [2020-10-14 02:39:01,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:39:01,801 INFO L479 AbstractCegarLoop]: Abstraction has 12337 states and 13455 transitions. [2020-10-14 02:39:01,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 02:39:01,801 INFO L276 IsEmpty]: Start isEmpty. Operand 12337 states and 13455 transitions. [2020-10-14 02:39:01,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2020-10-14 02:39:01,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:39:01,811 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 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 02:39:01,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 02:39:01,811 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:39:01,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:39:01,811 INFO L82 PathProgramCache]: Analyzing trace with hash 602626079, now seen corresponding path program 1 times [2020-10-14 02:39:01,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:39:01,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112197901] [2020-10-14 02:39:01,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:39:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:01,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:02,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:04,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:04,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 575 [2020-10-14 02:39:04,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:39:04,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2359 [2020-10-14 02:39:04,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:04,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:04,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:39:04,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 281 [2020-10-14 02:39:04,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 02:39:04,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:04,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:39:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:04,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:04,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:04,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:39:04,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:04,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:39:04,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:04,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:04,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:39:04,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:04,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:39:04,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:39:04,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:39:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:04,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:04,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:04,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:39:04,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:04,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 02:39:04,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:04,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:04,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:39:04,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:04,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:39:04,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:04,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:39:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:04,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:04,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:04,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 02:39:04,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:04,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 02:39:04,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:04,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:39:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 02:39:04,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:04,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-14 02:39:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:04,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:04,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:04,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 02:39:04,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:04,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 02:39:04,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:04,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:04,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:39:04,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:39:04,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 02:39:04,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:04,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2020-10-14 02:39:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:04,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:04,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:04,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 02:39:04,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:04,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 02:39:04,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:04,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:39:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 02:39:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:39:04,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 409 proven. 106 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2020-10-14 02:39:04,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112197901] [2020-10-14 02:39:04,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:39:04,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:39:04,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099344055] [2020-10-14 02:39:04,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:39:04,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:39:04,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:39:04,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:39:04,966 INFO L87 Difference]: Start difference. First operand 12337 states and 13455 transitions. Second operand 7 states. [2020-10-14 02:39:07,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:39:07,593 INFO L93 Difference]: Finished difference Result 24336 states and 26511 transitions. [2020-10-14 02:39:07,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:39:07,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 559 [2020-10-14 02:39:07,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:39:07,613 INFO L225 Difference]: With dead ends: 24336 [2020-10-14 02:39:07,614 INFO L226 Difference]: Without dead ends: 12389 [2020-10-14 02:39:07,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:39:07,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12389 states. [2020-10-14 02:39:07,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12389 to 12335. [2020-10-14 02:39:07,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12335 states. [2020-10-14 02:39:07,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12335 states to 12335 states and 13407 transitions. [2020-10-14 02:39:07,774 INFO L78 Accepts]: Start accepts. Automaton has 12335 states and 13407 transitions. Word has length 559 [2020-10-14 02:39:07,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:39:07,775 INFO L479 AbstractCegarLoop]: Abstraction has 12335 states and 13407 transitions. [2020-10-14 02:39:07,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:39:07,775 INFO L276 IsEmpty]: Start isEmpty. Operand 12335 states and 13407 transitions. [2020-10-14 02:39:07,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2020-10-14 02:39:07,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:39:07,787 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:39:07,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 02:39:07,787 INFO L427 AbstractCegarLoop]: === Iteration 32 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:39:07,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:39:07,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1972871115, now seen corresponding path program 1 times [2020-10-14 02:39:07,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:39:07,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556852935] [2020-10-14 02:39:07,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:39:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:07,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:08,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:08,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:12,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:12,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 608 [2020-10-14 02:39:12,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:39:12,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 02:39:12,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:12,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:12,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:39:12,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 441 [2020-10-14 02:39:12,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 02:39:12,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:13,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:39:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:13,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:13,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:13,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:39:13,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:13,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:39:13,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:13,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:13,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:39:13,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:13,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:39:13,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:13,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:39:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:13,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:13,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:13,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 02:39:13,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:13,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 02:39:13,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:13,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:39:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:13,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:39:13,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:13,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 02:39:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:13,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:13,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:13,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 02:39:13,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:13,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 02:39:13,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:13,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:39:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:39:13,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:13,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-14 02:39:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:13,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:13,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:13,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 02:39:13,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:13,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 02:39:13,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:13,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:13,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:39:13,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:13,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-14 02:39:13,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:13,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2020-10-14 02:39:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:13,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:13,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:13,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:39:13,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:13,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 02:39:13,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:13,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:13,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:39:13,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:39:13,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:39:13,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:13,609 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 519 proven. 2 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2020-10-14 02:39:13,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556852935] [2020-10-14 02:39:13,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:39:13,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:39:13,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381989357] [2020-10-14 02:39:13,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:39:13,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:39:13,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:39:13,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:39:13,611 INFO L87 Difference]: Start difference. First operand 12335 states and 13407 transitions. Second operand 7 states. [2020-10-14 02:39:17,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:39:17,787 INFO L93 Difference]: Finished difference Result 24901 states and 27053 transitions. [2020-10-14 02:39:17,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:39:17,788 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 592 [2020-10-14 02:39:17,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:39:17,813 INFO L225 Difference]: With dead ends: 24901 [2020-10-14 02:39:17,813 INFO L226 Difference]: Without dead ends: 12956 [2020-10-14 02:39:17,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:39:17,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12956 states. [2020-10-14 02:39:17,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12956 to 12335. [2020-10-14 02:39:17,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12335 states. [2020-10-14 02:39:17,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12335 states to 12335 states and 13381 transitions. [2020-10-14 02:39:17,964 INFO L78 Accepts]: Start accepts. Automaton has 12335 states and 13381 transitions. Word has length 592 [2020-10-14 02:39:17,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:39:17,965 INFO L479 AbstractCegarLoop]: Abstraction has 12335 states and 13381 transitions. [2020-10-14 02:39:17,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:39:17,965 INFO L276 IsEmpty]: Start isEmpty. Operand 12335 states and 13381 transitions. [2020-10-14 02:39:17,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2020-10-14 02:39:17,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:39:17,975 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 02:39:17,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-14 02:39:17,975 INFO L427 AbstractCegarLoop]: === Iteration 33 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:39:17,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:39:17,975 INFO L82 PathProgramCache]: Analyzing trace with hash 860880761, now seen corresponding path program 1 times [2020-10-14 02:39:17,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:39:17,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938101219] [2020-10-14 02:39:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:39:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:18,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:19,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:19,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 608 [2020-10-14 02:39:19,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:19,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1164 [2020-10-14 02:39:19,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:19,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 02:39:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 338 [2020-10-14 02:39:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 02:39:19,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:19,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:39:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:19,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:19,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:19,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:39:19,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:19,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:39:19,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:19,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:19,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:39:19,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:19,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:39:19,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:19,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:39:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:19,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:19,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:19,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-14 02:39:19,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:19,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 02:39:19,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:19,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:19,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:39:19,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:19,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:39:19,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:19,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-14 02:39:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:19,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:19,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:19,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 02:39:19,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:19,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 02:39:19,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:19,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:39:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:39:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 02:39:19,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:19,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-10-14 02:39:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:19,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:19,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:19,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:39:19,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:19,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 02:39:19,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:19,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:19,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:39:19,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:39:19,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 02:39:19,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:19,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2020-10-14 02:39:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:39:19,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:39:19,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:39:19,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 02:39:19,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:39:19,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 02:39:19,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:39:19,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:39:19,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 02:39:19,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:39:19,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 02:39:19,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:39:20,058 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 612 proven. 96 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2020-10-14 02:39:20,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938101219] [2020-10-14 02:39:20,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:39:20,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 02:39:20,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171693139] [2020-10-14 02:39:20,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 02:39:20,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:39:20,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 02:39:20,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 02:39:20,060 INFO L87 Difference]: Start difference. First operand 12335 states and 13381 transitions. Second operand 9 states.