/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/Problem15_label27.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 21:58:01,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 21:58:01,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 21:58:01,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 21:58:01,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 21:58:01,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 21:58:01,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 21:58:01,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 21:58:01,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 21:58:01,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 21:58:01,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 21:58:01,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 21:58:01,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 21:58:01,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 21:58:01,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 21:58:01,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 21:58:01,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 21:58:01,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 21:58:01,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 21:58:01,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 21:58:01,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 21:58:01,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 21:58:01,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 21:58:01,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 21:58:01,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 21:58:01,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 21:58:01,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 21:58:01,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 21:58:01,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 21:58:01,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 21:58:01,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 21:58:01,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 21:58:01,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 21:58:01,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 21:58:01,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 21:58:01,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 21:58:01,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 21:58:01,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 21:58:01,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 21:58:01,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 21:58:01,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 21:58:01,499 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 21:58:01,526 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 21:58:01,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 21:58:01,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 21:58:01,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 21:58:01,528 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 21:58:01,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 21:58:01,528 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 21:58:01,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 21:58:01,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 21:58:01,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 21:58:01,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 21:58:01,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 21:58:01,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 21:58:01,530 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 21:58:01,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 21:58:01,530 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 21:58:01,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 21:58:01,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 21:58:01,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 21:58:01,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 21:58:01,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 21:58:01,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 21:58:01,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 21:58:01,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 21:58:01,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 21:58:01,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 21:58:01,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 21:58:01,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 21:58:01,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 21:58:01,533 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 21:58:01,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 21:58:01,861 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 21:58:01,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 21:58:01,866 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 21:58:01,867 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 21:58:01,868 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label27.c [2020-10-14 21:58:01,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9168cad9e/0b8e40581ac94f73ab7ec44367e8404c/FLAGa087b339b [2020-10-14 21:58:02,645 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 21:58:02,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem15_label27.c [2020-10-14 21:58:02,670 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9168cad9e/0b8e40581ac94f73ab7ec44367e8404c/FLAGa087b339b [2020-10-14 21:58:02,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9168cad9e/0b8e40581ac94f73ab7ec44367e8404c [2020-10-14 21:58:02,749 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 21:58:02,751 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 21:58:02,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 21:58:02,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 21:58:02,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 21:58:02,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:58:02" (1/1) ... [2020-10-14 21:58:02,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a5cffe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:02, skipping insertion in model container [2020-10-14 21:58:02,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:58:02" (1/1) ... [2020-10-14 21:58:02,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 21:58:02,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 21:58:03,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:58:03,853 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 21:58:04,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:58:04,170 INFO L208 MainTranslator]: Completed translation [2020-10-14 21:58:04,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:04 WrapperNode [2020-10-14 21:58:04,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 21:58:04,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 21:58:04,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 21:58:04,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 21:58:04,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:04" (1/1) ... [2020-10-14 21:58:04,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:04" (1/1) ... [2020-10-14 21:58:04,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:04" (1/1) ... [2020-10-14 21:58:04,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:04" (1/1) ... [2020-10-14 21:58:04,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:04" (1/1) ... [2020-10-14 21:58:04,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:04" (1/1) ... [2020-10-14 21:58:04,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:04" (1/1) ... [2020-10-14 21:58:04,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 21:58:04,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 21:58:04,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 21:58:04,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 21:58:04,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:04" (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 21:58:04,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 21:58:04,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 21:58:04,484 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 21:58:04,484 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 21:58:04,484 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 21:58:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 21:58:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 21:58:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 21:58:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 21:58:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 21:58:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 21:58:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 21:58:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 21:58:10,107 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 21:58:10,107 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 21:58:10,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:58:10 BoogieIcfgContainer [2020-10-14 21:58:10,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 21:58:10,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 21:58:10,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 21:58:10,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 21:58:10,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:58:02" (1/3) ... [2020-10-14 21:58:10,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b039791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:58:10, skipping insertion in model container [2020-10-14 21:58:10,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:04" (2/3) ... [2020-10-14 21:58:10,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b039791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:58:10, skipping insertion in model container [2020-10-14 21:58:10,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:58:10" (3/3) ... [2020-10-14 21:58:10,124 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label27.c [2020-10-14 21:58:10,135 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 21:58:10,144 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 21:58:10,160 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 21:58:10,190 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 21:58:10,190 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 21:58:10,190 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 21:58:10,190 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 21:58:10,190 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 21:58:10,190 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 21:58:10,191 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 21:58:10,191 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 21:58:10,221 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states. [2020-10-14 21:58:10,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-14 21:58:10,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:58:10,233 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] [2020-10-14 21:58:10,233 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:58:10,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:58:10,243 INFO L82 PathProgramCache]: Analyzing trace with hash 346586261, now seen corresponding path program 1 times [2020-10-14 21:58:10,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:58:10,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802090700] [2020-10-14 21:58:10,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:58:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:10,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:10,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:10,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 21:58:10,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:10,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-10-14 21:58:10,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:10,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:10,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:58:10,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:58:10,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 21:58:10,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:58:11,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:58:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:11,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:11,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:11,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:58:11,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:11,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:58:11,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:11,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:58:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:58:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:58:11,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:11,112 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 21:58:11,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802090700] [2020-10-14 21:58:11,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:58:11,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 21:58:11,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000100243] [2020-10-14 21:58:11,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 21:58:11,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:58:11,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 21:58:11,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 21:58:11,148 INFO L87 Difference]: Start difference. First operand 437 states. Second operand 4 states. [2020-10-14 21:58:16,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:58:16,824 INFO L93 Difference]: Finished difference Result 1199 states and 2164 transitions. [2020-10-14 21:58:16,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:58:16,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-10-14 21:58:16,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:58:16,853 INFO L225 Difference]: With dead ends: 1199 [2020-10-14 21:58:16,853 INFO L226 Difference]: Without dead ends: 697 [2020-10-14 21:58:16,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:58:16,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-14 21:58:16,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 691. [2020-10-14 21:58:16,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-10-14 21:58:16,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1012 transitions. [2020-10-14 21:58:16,986 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1012 transitions. Word has length 43 [2020-10-14 21:58:16,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:58:16,988 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 1012 transitions. [2020-10-14 21:58:16,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 21:58:16,988 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1012 transitions. [2020-10-14 21:58:16,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 21:58:16,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:58:16,997 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:58:16,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 21:58:16,998 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:58:16,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:58:16,999 INFO L82 PathProgramCache]: Analyzing trace with hash -817588878, now seen corresponding path program 1 times [2020-10-14 21:58:17,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:58:17,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924924512] [2020-10-14 21:58:17,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:58:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:17,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:17,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:18,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:18,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 21:58:18,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:58:18,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1532 [2020-10-14 21:58:18,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:18,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:18,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:58:18,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:58:18,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 21:58:18,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:58:18,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:58:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:18,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:18,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:18,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:58:18,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 21:58:18,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:18,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:58:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:58:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:58:18,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:18,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:58:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:18,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:18,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:18,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 21:58:18,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:18,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-14 21:58:18,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:18,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:18,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:58:18,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:58:18,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 21:58:18,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 21:58:19,007 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:58:19,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924924512] [2020-10-14 21:58:19,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:58:19,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 21:58:19,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657780800] [2020-10-14 21:58:19,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:58:19,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:58:19,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:58:19,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:58:19,013 INFO L87 Difference]: Start difference. First operand 691 states and 1012 transitions. Second operand 7 states. [2020-10-14 21:58:26,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:58:26,137 INFO L93 Difference]: Finished difference Result 2046 states and 3016 transitions. [2020-10-14 21:58:26,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:58:26,138 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-10-14 21:58:26,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:58:26,153 INFO L225 Difference]: With dead ends: 2046 [2020-10-14 21:58:26,153 INFO L226 Difference]: Without dead ends: 1361 [2020-10-14 21:58:26,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 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 21:58:26,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2020-10-14 21:58:26,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1337. [2020-10-14 21:58:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2020-10-14 21:58:26,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1730 transitions. [2020-10-14 21:58:26,248 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1730 transitions. Word has length 112 [2020-10-14 21:58:26,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:58:26,250 INFO L479 AbstractCegarLoop]: Abstraction has 1337 states and 1730 transitions. [2020-10-14 21:58:26,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:58:26,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1730 transitions. [2020-10-14 21:58:26,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-14 21:58:26,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:58:26,267 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 21:58:26,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 21:58:26,267 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:58:26,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:58:26,268 INFO L82 PathProgramCache]: Analyzing trace with hash -620989714, now seen corresponding path program 1 times [2020-10-14 21:58:26,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:58:26,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221412059] [2020-10-14 21:58:26,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:58:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:26,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:26,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:27,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:27,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:27,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:28,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:30,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:30,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-14 21:58:30,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:58:30,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4242 [2020-10-14 21:58:30,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:30,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:30,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 21:58:30,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:58:30,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 21:58:30,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:30,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:58:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:30,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:30,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:30,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:58:30,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:30,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 21:58:30,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:30,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:58:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:58:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:58:30,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:30,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:58:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:30,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:30,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:30,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:58:30,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:30,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-14 21:58:30,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:30,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:30,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:58:30,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:58:30,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:58:30,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:31,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 21:58:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:31,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:31,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:31,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:58:31,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:31,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 21:58:31,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:31,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:31,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:58:31,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:58:31,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 21:58:31,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:31,381 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-14 21:58:31,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221412059] [2020-10-14 21:58:31,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:58:31,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:58:31,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354774550] [2020-10-14 21:58:31,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:58:31,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:58:31,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:58:31,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:58:31,385 INFO L87 Difference]: Start difference. First operand 1337 states and 1730 transitions. Second operand 7 states. [2020-10-14 21:58:41,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:58:41,866 INFO L93 Difference]: Finished difference Result 3699 states and 4911 transitions. [2020-10-14 21:58:41,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:58:41,873 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2020-10-14 21:58:41,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:58:41,893 INFO L225 Difference]: With dead ends: 3699 [2020-10-14 21:58:41,893 INFO L226 Difference]: Without dead ends: 2368 [2020-10-14 21:58:41,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 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 21:58:41,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2020-10-14 21:58:41,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 2290. [2020-10-14 21:58:41,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2290 states. [2020-10-14 21:58:41,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 2816 transitions. [2020-10-14 21:58:41,990 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 2816 transitions. Word has length 217 [2020-10-14 21:58:41,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:58:41,992 INFO L479 AbstractCegarLoop]: Abstraction has 2290 states and 2816 transitions. [2020-10-14 21:58:41,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:58:41,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 2816 transitions. [2020-10-14 21:58:41,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-10-14 21:58:41,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:58:42,000 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:58:42,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 21:58:42,000 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:58:42,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:58:42,001 INFO L82 PathProgramCache]: Analyzing trace with hash 2035850988, now seen corresponding path program 1 times [2020-10-14 21:58:42,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:58:42,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730663690] [2020-10-14 21:58:42,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:58:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:42,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:42,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:42,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:47,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:47,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-14 21:58:47,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:58:47,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-14 21:58:47,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:47,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:58:47,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:58:47,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-14 21:58:47,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:47,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:58:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:47,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:47,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:47,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:58:47,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:47,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 21:58:47,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:47,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:47,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:58:47,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:58:47,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:58:47,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:47,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:58:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:47,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:47,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:47,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 21:58:47,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:47,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-10-14 21:58:47,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:47,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:47,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:58:47,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:58:47,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 21:58:47,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:48,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 21:58:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:48,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:48,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:48,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 21:58:48,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:48,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 21:58:48,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:48,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:48,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:58:48,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 21:58:48,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:58:48,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:49,060 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 72 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 21:58:49,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730663690] [2020-10-14 21:58:49,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:58:49,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:58:49,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132440494] [2020-10-14 21:58:49,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:58:49,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:58:49,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:58:49,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:58:49,071 INFO L87 Difference]: Start difference. First operand 2290 states and 2816 transitions. Second operand 7 states. [2020-10-14 21:58:57,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:58:57,822 INFO L93 Difference]: Finished difference Result 4940 states and 6020 transitions. [2020-10-14 21:58:57,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:58:57,825 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 323 [2020-10-14 21:58:57,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:58:57,839 INFO L225 Difference]: With dead ends: 4940 [2020-10-14 21:58:57,840 INFO L226 Difference]: Without dead ends: 2656 [2020-10-14 21:58:57,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:58:57,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2020-10-14 21:58:57,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2603. [2020-10-14 21:58:57,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2603 states. [2020-10-14 21:58:57,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 3140 transitions. [2020-10-14 21:58:57,920 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 3140 transitions. Word has length 323 [2020-10-14 21:58:57,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:58:57,921 INFO L479 AbstractCegarLoop]: Abstraction has 2603 states and 3140 transitions. [2020-10-14 21:58:57,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:58:57,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 3140 transitions. [2020-10-14 21:58:57,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-14 21:58:57,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:58:57,929 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:58:57,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 21:58:57,929 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:58:57,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:58:57,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1976204599, now seen corresponding path program 1 times [2020-10-14 21:58:57,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:58:57,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098405264] [2020-10-14 21:58:57,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:58:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:58,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:58,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:58,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:58,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:00,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:01,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:01,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 350 [2020-10-14 21:59:01,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:59:01,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3647 [2020-10-14 21:59:01,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:01,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 21:59:01,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:59:01,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 344 [2020-10-14 21:59:01,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:01,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:59:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:01,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:01,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:01,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:59:01,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:01,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 21:59:01,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:01,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:01,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:59:01,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:01,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:59:01,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:01,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:59:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:01,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:01,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:02,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:02,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:59:02,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:59:02,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-14 21:59:02,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:02,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:02,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:59:02,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:02,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 21:59:02,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:02,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 21:59:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:02,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:02,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:03,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:03,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 21:59:03,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:59:03,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1101 [2020-10-14 21:59:03,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:03,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:03,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:59:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 21:59:03,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:03,566 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 64 proven. 11 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-14 21:59:03,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098405264] [2020-10-14 21:59:03,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:59:03,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:59:03,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60667700] [2020-10-14 21:59:03,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:59:03,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:59:03,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:59:03,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:59:03,570 INFO L87 Difference]: Start difference. First operand 2603 states and 3140 transitions. Second operand 7 states. [2020-10-14 21:59:17,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:59:17,551 INFO L93 Difference]: Finished difference Result 7102 states and 9007 transitions. [2020-10-14 21:59:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 21:59:17,553 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 338 [2020-10-14 21:59:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:59:17,582 INFO L225 Difference]: With dead ends: 7102 [2020-10-14 21:59:17,582 INFO L226 Difference]: Without dead ends: 4812 [2020-10-14 21:59:17,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-14 21:59:17,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2020-10-14 21:59:17,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 3857. [2020-10-14 21:59:17,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3857 states. [2020-10-14 21:59:17,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3857 states to 3857 states and 4848 transitions. [2020-10-14 21:59:17,729 INFO L78 Accepts]: Start accepts. Automaton has 3857 states and 4848 transitions. Word has length 338 [2020-10-14 21:59:17,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:59:17,730 INFO L479 AbstractCegarLoop]: Abstraction has 3857 states and 4848 transitions. [2020-10-14 21:59:17,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:59:17,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3857 states and 4848 transitions. [2020-10-14 21:59:17,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2020-10-14 21:59:17,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:59:17,742 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:17,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 21:59:17,743 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:59:17,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:59:17,743 INFO L82 PathProgramCache]: Analyzing trace with hash -52453791, now seen corresponding path program 1 times [2020-10-14 21:59:17,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:59:17,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994762672] [2020-10-14 21:59:17,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:59:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:17,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:18,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:18,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:21,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:22,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:22,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 487 [2020-10-14 21:59:22,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:59:22,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 21:59:22,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:22,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:22,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:59:22,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 366 [2020-10-14 21:59:22,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:59:22,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:23,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:59:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:23,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:23,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:23,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:59:23,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:59:23,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:23,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:59:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:59:23,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:23,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:59:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:23,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:23,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:23,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 21:59:23,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:23,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 21:59:23,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:23,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:23,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:59:23,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:23,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:59:23,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:23,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 21:59:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:23,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:23,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:23,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 21:59:23,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:23,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 21:59:23,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:23,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:23,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:59:23,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:23,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 21:59:23,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:23,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-14 21:59:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:23,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:23,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:23,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:59:23,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:23,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-14 21:59:23,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:23,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:23,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:59:23,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:59:23,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 21:59:23,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:59:23,824 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 259 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-14 21:59:23,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994762672] [2020-10-14 21:59:23,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:59:23,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:59:23,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495818525] [2020-10-14 21:59:23,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:59:23,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:59:23,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:59:23,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:59:23,827 INFO L87 Difference]: Start difference. First operand 3857 states and 4848 transitions. Second operand 7 states. [2020-10-14 21:59:35,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:59:35,532 INFO L93 Difference]: Finished difference Result 10024 states and 13202 transitions. [2020-10-14 21:59:35,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 21:59:35,534 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 473 [2020-10-14 21:59:35,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:59:35,570 INFO L225 Difference]: With dead ends: 10024 [2020-10-14 21:59:35,570 INFO L226 Difference]: Without dead ends: 6480 [2020-10-14 21:59:35,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:59:35,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6480 states. [2020-10-14 21:59:35,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6480 to 5773. [2020-10-14 21:59:35,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5773 states. [2020-10-14 21:59:35,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5773 states to 5773 states and 6978 transitions. [2020-10-14 21:59:35,783 INFO L78 Accepts]: Start accepts. Automaton has 5773 states and 6978 transitions. Word has length 473 [2020-10-14 21:59:35,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:59:35,785 INFO L479 AbstractCegarLoop]: Abstraction has 5773 states and 6978 transitions. [2020-10-14 21:59:35,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:59:35,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5773 states and 6978 transitions. [2020-10-14 21:59:35,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2020-10-14 21:59:35,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:59:35,803 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:35,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 21:59:35,803 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:59:35,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:59:35,804 INFO L82 PathProgramCache]: Analyzing trace with hash -528331655, now seen corresponding path program 1 times [2020-10-14 21:59:35,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:59:35,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113275226] [2020-10-14 21:59:35,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:59:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:36,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:36,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:36,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:37,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:40,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:40,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 492 [2020-10-14 21:59:40,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:59:40,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 21:59:40,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:40,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:40,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:59:40,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 21:59:40,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 21:59:40,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:41,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:59:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:41,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:41,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:41,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:59:41,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:41,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:59:41,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:41,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:59:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:59:41,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:41,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:59:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:41,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:41,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:41,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 21:59:41,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:41,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-14 21:59:41,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:41,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:41,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:59:41,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:41,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 21:59:41,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:41,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 21:59:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:41,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:41,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:41,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 21:59:41,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:41,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 21:59:41,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:41,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:41,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:59:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:59:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 21:59:41,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:41,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2020-10-14 21:59:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:41,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:41,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:41,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:59:41,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:41,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 21:59:41,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:41,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:41,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:59:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 21:59:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:59:41,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:41,744 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 194 proven. 75 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-14 21:59:41,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113275226] [2020-10-14 21:59:41,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:59:41,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:59:41,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406948229] [2020-10-14 21:59:41,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:59:41,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:59:41,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:59:41,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:59:41,747 INFO L87 Difference]: Start difference. First operand 5773 states and 6978 transitions. Second operand 7 states. [2020-10-14 21:59:54,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:59:54,889 INFO L93 Difference]: Finished difference Result 13843 states and 17431 transitions. [2020-10-14 21:59:54,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:59:54,890 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 478 [2020-10-14 21:59:54,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:59:54,927 INFO L225 Difference]: With dead ends: 13843 [2020-10-14 21:59:54,927 INFO L226 Difference]: Without dead ends: 8383 [2020-10-14 21:59:54,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 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 21:59:54,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8383 states. [2020-10-14 21:59:55,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8383 to 7075. [2020-10-14 21:59:55,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7075 states. [2020-10-14 21:59:55,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7075 states to 7075 states and 8454 transitions. [2020-10-14 21:59:55,125 INFO L78 Accepts]: Start accepts. Automaton has 7075 states and 8454 transitions. Word has length 478 [2020-10-14 21:59:55,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:59:55,126 INFO L479 AbstractCegarLoop]: Abstraction has 7075 states and 8454 transitions. [2020-10-14 21:59:55,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:59:55,126 INFO L276 IsEmpty]: Start isEmpty. Operand 7075 states and 8454 transitions. [2020-10-14 21:59:55,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2020-10-14 21:59:55,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:59:55,143 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:55,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 21:59:55,143 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:59:55,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:59:55,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1148363937, now seen corresponding path program 1 times [2020-10-14 21:59:55,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:59:55,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618763242] [2020-10-14 21:59:55,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:59:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:55,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:55,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:55,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:55,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:56,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:57,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:58,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:00,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:00,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 516 [2020-10-14 22:00:00,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 22:00:00,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 22:00:00,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:00,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:00,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:00:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 22:00:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 289 [2020-10-14 22:00:00,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:00,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:00:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:00,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:00,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:00,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:00:00,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:00,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:00:00,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:00,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:00,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:00,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:00,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:00,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:00,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:00:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:00,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:00,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:00,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 22:00:00,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:00,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:00:00,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:00,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:00,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:00:00,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:00,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 22:00:00,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:00,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 22:00:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:00,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:00,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:00,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:00,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 22:00:00,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:00:00,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 399 [2020-10-14 22:00:00,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:00,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:00,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:00,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:00:00,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 22:00:00,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:00,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-10-14 22:00:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:00,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:01,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:01,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 22:00:01,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:01,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 22:00:01,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:01,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:01,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:01,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:00:01,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 22:00:01,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:01,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2020-10-14 22:00:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:01,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:01,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:01,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:00:01,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:01,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:00:01,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:01,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:01,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:01,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 22:00:01,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:01,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:01,331 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 325 proven. 150 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2020-10-14 22:00:01,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618763242] [2020-10-14 22:00:01,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:00:01,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:00:01,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36782555] [2020-10-14 22:00:01,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:00:01,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:00:01,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:00:01,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:00:01,335 INFO L87 Difference]: Start difference. First operand 7075 states and 8454 transitions. Second operand 7 states. [2020-10-14 22:00:20,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:00:20,411 INFO L93 Difference]: Finished difference Result 17351 states and 21078 transitions. [2020-10-14 22:00:20,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:00:20,413 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 500 [2020-10-14 22:00:20,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:00:20,454 INFO L225 Difference]: With dead ends: 17351 [2020-10-14 22:00:20,454 INFO L226 Difference]: Without dead ends: 9621 [2020-10-14 22:00:20,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:00:20,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9621 states. [2020-10-14 22:00:20,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9621 to 8677. [2020-10-14 22:00:20,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8677 states. [2020-10-14 22:00:20,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8677 states to 8677 states and 10002 transitions. [2020-10-14 22:00:20,705 INFO L78 Accepts]: Start accepts. Automaton has 8677 states and 10002 transitions. Word has length 500 [2020-10-14 22:00:20,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:00:20,706 INFO L479 AbstractCegarLoop]: Abstraction has 8677 states and 10002 transitions. [2020-10-14 22:00:20,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:00:20,706 INFO L276 IsEmpty]: Start isEmpty. Operand 8677 states and 10002 transitions. [2020-10-14 22:00:20,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2020-10-14 22:00:20,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:00:20,721 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:20,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:00:20,722 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:00:20,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:00:20,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1677470757, now seen corresponding path program 1 times [2020-10-14 22:00:20,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:00:20,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765145975] [2020-10-14 22:00:20,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:00:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:20,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:21,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:21,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:22,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:25,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:25,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 518 [2020-10-14 22:00:25,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:00:25,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4334 [2020-10-14 22:00:25,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:25,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:25,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:25,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:00:25,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 22:00:25,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:25,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:00:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:25,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:25,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:25,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:00:25,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:25,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:00:25,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:25,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:25,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:25,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:00:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:25,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:25,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:25,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 22:00:25,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:25,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 22:00:25,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:25,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:25,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:00:25,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:25,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 22:00:25,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:25,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:00:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:25,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:25,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:25,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:00:25,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:25,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 22:00:25,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:25,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:25,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:00:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:00:25,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:26,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-14 22:00:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:26,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:26,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:26,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:00:26,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:26,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:00:26,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:26,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:26,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:26,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 22:00:26,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:26,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 220 proven. 75 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-14 22:00:26,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765145975] [2020-10-14 22:00:26,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:00:26,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:00:26,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632121032] [2020-10-14 22:00:26,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:00:26,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:00:26,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:00:26,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:00:26,417 INFO L87 Difference]: Start difference. First operand 8677 states and 10002 transitions. Second operand 7 states. [2020-10-14 22:00:37,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:00:37,524 INFO L93 Difference]: Finished difference Result 18349 states and 21150 transitions. [2020-10-14 22:00:37,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:00:37,526 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 504 [2020-10-14 22:00:37,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:00:37,557 INFO L225 Difference]: With dead ends: 18349 [2020-10-14 22:00:37,558 INFO L226 Difference]: Without dead ends: 9985 [2020-10-14 22:00:37,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:00:37,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9985 states. [2020-10-14 22:00:37,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9985 to 9924. [2020-10-14 22:00:37,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9924 states. [2020-10-14 22:00:37,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9924 states to 9924 states and 11291 transitions. [2020-10-14 22:00:37,789 INFO L78 Accepts]: Start accepts. Automaton has 9924 states and 11291 transitions. Word has length 504 [2020-10-14 22:00:37,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:00:37,790 INFO L479 AbstractCegarLoop]: Abstraction has 9924 states and 11291 transitions. [2020-10-14 22:00:37,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:00:37,790 INFO L276 IsEmpty]: Start isEmpty. Operand 9924 states and 11291 transitions. [2020-10-14 22:00:37,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2020-10-14 22:00:37,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:00:37,800 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:37,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:00:37,800 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:00:37,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:00:37,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1792256861, now seen corresponding path program 1 times [2020-10-14 22:00:37,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:00:37,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60440585] [2020-10-14 22:00:37,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:00:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:38,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:38,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:38,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:40,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:40,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 530 [2020-10-14 22:00:40,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:00:40,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2467 [2020-10-14 22:00:40,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:40,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 22:00:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 22:00:40,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:40,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:00:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:40,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:40,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:40,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:00:40,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:40,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:00:40,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:40,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:40,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:40,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:00:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:40,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:40,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:40,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:00:40,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:40,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:00:40,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:40,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:40,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:40,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:40,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:40,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:40,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:00:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:40,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:40,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:40,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:00:40,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:40,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:00:40,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:40,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:40,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:00:40,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:40,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:00:40,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:40,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:00:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:40,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:40,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:40,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:00:40,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:40,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 22:00:40,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:40,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:40,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:00:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:00:40,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:41,138 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 259 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 22:00:41,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60440585] [2020-10-14 22:00:41,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:00:41,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:00:41,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220784752] [2020-10-14 22:00:41,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:00:41,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:00:41,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:00:41,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:00:41,142 INFO L87 Difference]: Start difference. First operand 9924 states and 11291 transitions. Second operand 7 states. [2020-10-14 22:00:51,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:00:51,357 INFO L93 Difference]: Finished difference Result 22055 states and 25851 transitions. [2020-10-14 22:00:51,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:00:51,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 516 [2020-10-14 22:00:51,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:00:51,414 INFO L225 Difference]: With dead ends: 22055 [2020-10-14 22:00:51,414 INFO L226 Difference]: Without dead ends: 12444 [2020-10-14 22:00:51,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:00:51,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12444 states. [2020-10-14 22:00:51,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12444 to 11477. [2020-10-14 22:00:51,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11477 states. [2020-10-14 22:00:51,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11477 states to 11477 states and 13532 transitions. [2020-10-14 22:00:51,733 INFO L78 Accepts]: Start accepts. Automaton has 11477 states and 13532 transitions. Word has length 516 [2020-10-14 22:00:51,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:00:51,734 INFO L479 AbstractCegarLoop]: Abstraction has 11477 states and 13532 transitions. [2020-10-14 22:00:51,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:00:51,735 INFO L276 IsEmpty]: Start isEmpty. Operand 11477 states and 13532 transitions. [2020-10-14 22:00:51,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2020-10-14 22:00:51,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:00:51,746 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:51,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:00:51,746 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:00:51,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:00:51,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1952827000, now seen corresponding path program 1 times [2020-10-14 22:00:51,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:00:51,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777725222] [2020-10-14 22:00:51,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:00:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:51,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:52,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:53,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:54,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:55,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:55,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 553 [2020-10-14 22:00:55,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:00:55,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3960 [2020-10-14 22:00:55,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:55,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 22:00:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 296 [2020-10-14 22:00:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 232 [2020-10-14 22:00:55,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:56,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:00:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:56,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:56,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:56,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:00:56,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:56,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:00:56,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:56,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:56,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:56,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:56,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:56,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:56,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:00:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:56,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:56,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:56,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:00:56,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:56,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-10-14 22:00:56,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:56,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:56,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:00:56,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:56,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 281 [2020-10-14 22:00:56,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:56,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:00:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:56,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:56,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:56,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:00:56,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:56,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 22:00:56,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:56,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:00:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:00:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:00:56,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:56,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:00:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:56,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:56,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:56,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:56,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 22:00:56,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:00:56,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 22:00:56,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:56,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:56,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:56,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:00:56,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 22:00:56,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:57,233 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 295 proven. 115 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 22:00:57,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777725222] [2020-10-14 22:00:57,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:00:57,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 22:00:57,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760903765] [2020-10-14 22:00:57,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 22:00:57,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:00:57,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 22:00:57,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:00:57,236 INFO L87 Difference]: Start difference. First operand 11477 states and 13532 transitions. Second operand 11 states. [2020-10-14 22:01:16,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:01:16,101 INFO L93 Difference]: Finished difference Result 31899 states and 39434 transitions. [2020-10-14 22:01:16,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 22:01:16,103 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 539 [2020-10-14 22:01:16,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:01:16,161 INFO L225 Difference]: With dead ends: 31899 [2020-10-14 22:01:16,162 INFO L226 Difference]: Without dead ends: 19804 [2020-10-14 22:01:16,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=195, Invalid=675, Unknown=0, NotChecked=0, Total=870 [2020-10-14 22:01:16,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19804 states. [2020-10-14 22:01:16,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19804 to 19261. [2020-10-14 22:01:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19261 states. [2020-10-14 22:01:16,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19261 states to 19261 states and 22318 transitions. [2020-10-14 22:01:16,648 INFO L78 Accepts]: Start accepts. Automaton has 19261 states and 22318 transitions. Word has length 539 [2020-10-14 22:01:16,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:01:16,649 INFO L479 AbstractCegarLoop]: Abstraction has 19261 states and 22318 transitions. [2020-10-14 22:01:16,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 22:01:16,649 INFO L276 IsEmpty]: Start isEmpty. Operand 19261 states and 22318 transitions. [2020-10-14 22:01:16,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2020-10-14 22:01:16,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:01:16,677 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:01:16,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:01:16,677 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:01:16,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:01:16,678 INFO L82 PathProgramCache]: Analyzing trace with hash 668167270, now seen corresponding path program 1 times [2020-10-14 22:01:16,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:01:16,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208564313] [2020-10-14 22:01:16,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:01:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:16,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:17,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:17,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:19,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:19,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 660 [2020-10-14 22:01:19,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:01:19,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2904 [2020-10-14 22:01:19,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:19,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:19,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:19,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 22:01:19,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 209 [2020-10-14 22:01:19,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:19,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:01:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:19,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:19,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:19,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:01:19,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:19,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:01:19,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:19,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:19,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:19,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:19,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:19,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:19,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:01:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:19,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:19,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:19,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:01:19,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:19,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:01:19,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:19,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:19,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:19,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:19,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:19,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:20,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:01:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:20,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:20,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:20,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:01:20,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:20,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:01:20,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:20,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:20,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:20,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:20,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:01:20,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:20,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 22:01:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:20,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:20,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:20,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-14 22:01:20,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:20,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-14 22:01:20,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:20,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:20,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:20,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:01:20,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 207 [2020-10-14 22:01:20,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:20,725 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 424 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 22:01:20,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208564313] [2020-10-14 22:01:20,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:01:20,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:01:20,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495452863] [2020-10-14 22:01:20,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:01:20,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:01:20,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:01:20,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:01:20,727 INFO L87 Difference]: Start difference. First operand 19261 states and 22318 transitions. Second operand 7 states. [2020-10-14 22:01:32,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:01:32,586 INFO L93 Difference]: Finished difference Result 41682 states and 49160 transitions. [2020-10-14 22:01:32,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:01:32,589 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 646 [2020-10-14 22:01:32,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:01:32,642 INFO L225 Difference]: With dead ends: 41682 [2020-10-14 22:01:32,642 INFO L226 Difference]: Without dead ends: 22403 [2020-10-14 22:01:32,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 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 22:01:32,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22403 states. [2020-10-14 22:01:33,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22403 to 22056. [2020-10-14 22:01:33,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22056 states. [2020-10-14 22:01:33,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22056 states to 22056 states and 25266 transitions. [2020-10-14 22:01:33,061 INFO L78 Accepts]: Start accepts. Automaton has 22056 states and 25266 transitions. Word has length 646 [2020-10-14 22:01:33,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:01:33,064 INFO L479 AbstractCegarLoop]: Abstraction has 22056 states and 25266 transitions. [2020-10-14 22:01:33,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:01:33,064 INFO L276 IsEmpty]: Start isEmpty. Operand 22056 states and 25266 transitions. [2020-10-14 22:01:33,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2020-10-14 22:01:33,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:01:33,089 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:01:33,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:01:33,090 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:01:33,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:01:33,091 INFO L82 PathProgramCache]: Analyzing trace with hash 359198477, now seen corresponding path program 1 times [2020-10-14 22:01:33,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:01:33,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824645381] [2020-10-14 22:01:33,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:01:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:33,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:33,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:35,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:36,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:38,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:38,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 733 [2020-10-14 22:01:38,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:01:38,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4757 [2020-10-14 22:01:38,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:38,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:38,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:01:38,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 573 [2020-10-14 22:01:38,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-14 22:01:38,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:38,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:01:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:38,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:38,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:38,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:01:38,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:38,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:01:38,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:38,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:38,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:38,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:38,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:38,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:38,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:01:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:38,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:38,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:38,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 22:01:38,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:38,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:01:38,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:38,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:38,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:38,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:38,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:38,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:38,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 22:01:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:38,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:38,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:38,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 22:01:38,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:38,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:01:38,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:38,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:38,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:38,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:38,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2020-10-14 22:01:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:38,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:38,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:38,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 22:01:38,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:38,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:01:38,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:38,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:38,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:38,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:38,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 22:01:38,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:38,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2020-10-14 22:01:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:38,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:38,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:38,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:38,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:01:38,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:01:38,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-14 22:01:38,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:38,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:38,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:38,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:38,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:01:38,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:38,931 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 158 proven. 4 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2020-10-14 22:01:38,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824645381] [2020-10-14 22:01:38,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:01:38,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:01:38,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811548643] [2020-10-14 22:01:38,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:01:38,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:01:38,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:01:38,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:01:38,934 INFO L87 Difference]: Start difference. First operand 22056 states and 25266 transitions. Second operand 5 states. [2020-10-14 22:01:45,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:01:45,560 INFO L93 Difference]: Finished difference Result 42878 states and 49254 transitions. [2020-10-14 22:01:45,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:01:45,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 717 [2020-10-14 22:01:45,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:01:45,613 INFO L225 Difference]: With dead ends: 42878 [2020-10-14 22:01:45,613 INFO L226 Difference]: Without dead ends: 21135 [2020-10-14 22:01:45,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:01:45,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21135 states. [2020-10-14 22:01:45,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21135 to 20814. [2020-10-14 22:01:45,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20814 states. [2020-10-14 22:01:45,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20814 states to 20814 states and 22852 transitions. [2020-10-14 22:01:45,937 INFO L78 Accepts]: Start accepts. Automaton has 20814 states and 22852 transitions. Word has length 717 [2020-10-14 22:01:45,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:01:45,938 INFO L479 AbstractCegarLoop]: Abstraction has 20814 states and 22852 transitions. [2020-10-14 22:01:45,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:01:45,938 INFO L276 IsEmpty]: Start isEmpty. Operand 20814 states and 22852 transitions. [2020-10-14 22:01:45,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2020-10-14 22:01:45,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:01:45,959 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:01:45,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:01:45,959 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:01:45,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:01:45,960 INFO L82 PathProgramCache]: Analyzing trace with hash 447815703, now seen corresponding path program 1 times [2020-10-14 22:01:45,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:01:45,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [555486348] [2020-10-14 22:01:45,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:01:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:46,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:46,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:47,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:47,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:51,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:51,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 765 [2020-10-14 22:01:51,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:01:51,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 22:01:51,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:51,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:51,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 22:01:51,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:01:51,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 282 [2020-10-14 22:01:51,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:51,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:01:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:51,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:51,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:51,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:01:51,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:51,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:01:51,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:51,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:51,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:01:51,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:51,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:01:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:51,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:51,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:51,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-14 22:01:51,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:51,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-10-14 22:01:51,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:51,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:01:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:01:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 238 [2020-10-14 22:01:51,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:01:52,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-10-14 22:01:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:52,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:52,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:52,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:52,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 22:01:52,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:01:52,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 469 [2020-10-14 22:01:52,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:52,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:52,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:52,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:01:52,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 22:01:52,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:52,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2020-10-14 22:01:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:52,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:53,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:53,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 22:01:53,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:53,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:01:53,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:53,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:53,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:53,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-14 22:01:53,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:53,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:53,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 571 [2020-10-14 22:01:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:53,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:53,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:53,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 22:01:53,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:53,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:01:53,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:53,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:53,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:53,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-14 22:01:53,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:53,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1