/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=NARROWEST --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/Problem01_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:06:31,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:06:31,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:06:31,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:06:31,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:06:31,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:06:31,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:06:31,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:06:31,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:06:31,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:06:31,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:06:31,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:06:31,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:06:31,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:06:31,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:06:31,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:06:31,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:06:31,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:06:31,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:06:31,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:06:31,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:06:31,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:06:31,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:06:31,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:06:31,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:06:31,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:06:31,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:06:31,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:06:31,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:06:31,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:06:31,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:06:31,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:06:31,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:06:31,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:06:31,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:06:31,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:06:31,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:06:31,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:06:31,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:06:31,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:06:31,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:06:31,606 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 [2020-10-13 06:06:31,655 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:06:31,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:06:31,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:06:31,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:06:31,657 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:06:31,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:06:31,658 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:06:31,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:06:31,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:06:31,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:06:31,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:06:31,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:06:31,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:06:31,660 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:06:31,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:06:31,660 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:06:31,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:06:31,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:06:31,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:06:31,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:06:31,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:06:31,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:06:31,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:06:31,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:06:31,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:06:31,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:06:31,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:06:31,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:06:31,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:06:31,664 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 06:06:32,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:06:32,031 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:06:32,037 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:06:32,040 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:06:32,041 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:06:32,042 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label54.c [2020-10-13 06:06:32,125 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df3db0609/b274453aa69946f9b1c5d75b4ca3a09f/FLAG5baf3633d [2020-10-13 06:06:32,728 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:06:32,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label54.c [2020-10-13 06:06:32,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df3db0609/b274453aa69946f9b1c5d75b4ca3a09f/FLAG5baf3633d [2020-10-13 06:06:33,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df3db0609/b274453aa69946f9b1c5d75b4ca3a09f [2020-10-13 06:06:33,046 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:06:33,047 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:06:33,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:06:33,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:06:33,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:06:33,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:06:33" (1/1) ... [2020-10-13 06:06:33,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea0c575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:33, skipping insertion in model container [2020-10-13 06:06:33,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:06:33" (1/1) ... [2020-10-13 06:06:33,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:06:33,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:06:33,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:06:33,706 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:06:33,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:06:33,816 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:06:33,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:33 WrapperNode [2020-10-13 06:06:33,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:06:33,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:06:33,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:06:33,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:06:33,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:33" (1/1) ... [2020-10-13 06:06:33,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:33" (1/1) ... [2020-10-13 06:06:33,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:33" (1/1) ... [2020-10-13 06:06:33,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:33" (1/1) ... [2020-10-13 06:06:33,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:33" (1/1) ... [2020-10-13 06:06:33,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:33" (1/1) ... [2020-10-13 06:06:33,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:33" (1/1) ... [2020-10-13 06:06:33,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:06:33,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:06:33,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:06:33,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:06:33,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:33" (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 [2020-10-13 06:06:34,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:06:34,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:06:34,022 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:06:34,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:06:34,023 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:06:34,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:06:34,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:06:34,024 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:06:34,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:06:34,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:06:34,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:06:35,318 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:06:35,318 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:06:35,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:06:35 BoogieIcfgContainer [2020-10-13 06:06:35,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:06:35,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:06:35,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:06:35,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:06:35,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:06:33" (1/3) ... [2020-10-13 06:06:35,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dcf8589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:06:35, skipping insertion in model container [2020-10-13 06:06:35,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:33" (2/3) ... [2020-10-13 06:06:35,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dcf8589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:06:35, skipping insertion in model container [2020-10-13 06:06:35,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:06:35" (3/3) ... [2020-10-13 06:06:35,342 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label54.c [2020-10-13 06:06:35,353 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:06:35,366 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:06:35,380 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:06:35,405 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:06:35,405 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:06:35,405 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:06:35,406 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:06:35,406 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:06:35,406 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:06:35,406 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:06:35,406 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:06:35,430 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:06:35,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-13 06:06:35,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:35,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:06:35,446 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:35,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:35,452 INFO L82 PathProgramCache]: Analyzing trace with hash -622531154, now seen corresponding path program 1 times [2020-10-13 06:06:35,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:35,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294783015] [2020-10-13 06:06:35,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:35,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:36,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:37,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:37,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-13 06:06:37,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:06:37,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1662 [2020-10-13 06:06:37,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:37,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:06:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:06:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:06:37,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:06:38,192 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 37 [2020-10-13 06:06:38,405 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 40 [2020-10-13 06:06:38,591 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 38 [2020-10-13 06:06:38,773 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 37 [2020-10-13 06:06:38,926 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 35 [2020-10-13 06:06:39,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:39,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:39,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:39,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:39,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:39,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:06:39,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:39,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:39,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:39,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:06:39,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:39,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:06:39,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294783015] [2020-10-13 06:06:39,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:06:39,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:06:39,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781406838] [2020-10-13 06:06:39,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:06:39,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:39,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:06:39,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:06:39,324 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-13 06:06:39,873 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 06:06:40,129 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2020-10-13 06:06:40,396 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-10-13 06:06:40,862 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2020-10-13 06:06:41,377 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2020-10-13 06:06:41,693 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-10-13 06:06:42,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:42,639 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:06:42,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:06:42,641 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 128 [2020-10-13 06:06:42,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:42,655 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:06:42,655 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:06:42,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:42,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:06:42,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:06:42,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:06:42,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:06:42,726 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 128 [2020-10-13 06:06:42,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:42,727 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:06:42,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:06:42,727 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:06:42,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-13 06:06:42,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:42,732 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:06:42,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:06:42,733 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:42,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:42,733 INFO L82 PathProgramCache]: Analyzing trace with hash -690347895, now seen corresponding path program 1 times [2020-10-13 06:06:42,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:42,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630514866] [2020-10-13 06:06:42,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:42,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:42,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:43,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:44,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:44,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-13 06:06:44,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:44,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1626 [2020-10-13 06:06:44,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:44,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:44,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:06:44,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:06:44,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:06:45,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:45,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:45,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:45,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:45,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:45,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:06:45,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:45,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:45,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:45,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:45,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:45,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:45,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:06:45,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:45,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:06:45,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:45,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:45,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:45,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:06:45,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:45,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:06:45,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630514866] [2020-10-13 06:06:45,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:45,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:45,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353408358] [2020-10-13 06:06:45,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:45,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:45,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:45,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:45,464 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:06:46,276 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-13 06:06:46,979 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-13 06:06:47,279 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-13 06:06:47,680 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 06:06:47,892 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 06:06:48,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:48,492 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:06:48,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:06:48,493 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 136 [2020-10-13 06:06:48,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:48,497 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:06:48,497 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:06:48,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:06:48,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:06:48,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:06:48,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:06:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:06:48,530 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 136 [2020-10-13 06:06:48,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:48,530 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:06:48,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:48,531 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:06:48,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-13 06:06:48,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:48,534 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:06:48,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:06:48,534 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:48,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:48,535 INFO L82 PathProgramCache]: Analyzing trace with hash -366676857, now seen corresponding path program 1 times [2020-10-13 06:06:48,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:48,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286269176] [2020-10-13 06:06:48,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:48,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:48,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:49,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:49,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:49,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-13 06:06:49,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:49,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 804 [2020-10-13 06:06:49,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:49,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:49,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:06:49,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 06:06:49,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:49,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:49,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:49,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:49,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:49,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:49,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:06:49,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:49,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:49,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:49,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:49,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:49,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:49,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:49,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:49,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:06:49,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:49,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:06:49,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:49,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:49,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:49,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:06:49,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:49,923 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:06:49,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286269176] [2020-10-13 06:06:49,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:49,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:06:49,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606436634] [2020-10-13 06:06:49,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:06:49,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:49,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:06:49,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:06:49,926 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:06:51,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:51,158 INFO L93 Difference]: Finished difference Result 587 states and 809 transitions. [2020-10-13 06:06:51,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:06:51,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2020-10-13 06:06:51,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:51,162 INFO L225 Difference]: With dead ends: 587 [2020-10-13 06:06:51,163 INFO L226 Difference]: Without dead ends: 278 [2020-10-13 06:06:51,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:06:51,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-13 06:06:51,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 276. [2020-10-13 06:06:51,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:06:51,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 330 transitions. [2020-10-13 06:06:51,183 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 330 transitions. Word has length 139 [2020-10-13 06:06:51,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:51,183 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 330 transitions. [2020-10-13 06:06:51,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:06:51,183 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 330 transitions. [2020-10-13 06:06:51,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-13 06:06:51,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:51,187 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:06:51,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:06:51,187 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:51,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:51,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1754981003, now seen corresponding path program 1 times [2020-10-13 06:06:51,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:51,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761374588] [2020-10-13 06:06:51,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:51,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:51,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:52,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:53,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:53,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 06:06:53,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:53,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2013 [2020-10-13 06:06:53,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:53,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:53,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:06:53,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:06:53,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:06:53,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:53,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:53,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:53,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:53,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:53,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:53,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:53,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:53,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:53,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:53,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:53,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:53,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:53,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:53,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:06:53,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:53,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 06:06:53,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:06:53,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:53,942 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:06:53,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761374588] [2020-10-13 06:06:53,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:53,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:53,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531796365] [2020-10-13 06:06:53,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:53,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:53,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:53,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:53,945 INFO L87 Difference]: Start difference. First operand 276 states and 330 transitions. Second operand 13 states. [2020-10-13 06:06:54,862 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:06:55,287 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:06:55,537 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:06:55,761 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:06:56,158 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2020-10-13 06:06:56,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:56,683 INFO L93 Difference]: Finished difference Result 552 states and 695 transitions. [2020-10-13 06:06:56,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:06:56,685 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 169 [2020-10-13 06:06:56,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:56,690 INFO L225 Difference]: With dead ends: 552 [2020-10-13 06:06:56,690 INFO L226 Difference]: Without dead ends: 325 [2020-10-13 06:06:56,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:56,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-13 06:06:56,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 319. [2020-10-13 06:06:56,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-13 06:06:56,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 378 transitions. [2020-10-13 06:06:56,712 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 378 transitions. Word has length 169 [2020-10-13 06:06:56,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:56,713 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 378 transitions. [2020-10-13 06:06:56,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:56,713 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 378 transitions. [2020-10-13 06:06:56,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-13 06:06:56,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:56,716 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:06:56,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:06:56,717 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:56,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:56,717 INFO L82 PathProgramCache]: Analyzing trace with hash -226839536, now seen corresponding path program 1 times [2020-10-13 06:06:56,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:56,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783308067] [2020-10-13 06:06:56,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:56,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:56,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:57,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:57,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:58,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:00,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-13 06:07:00,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:07:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3645 [2020-10-13 06:07:00,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:00,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:00,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:07:00,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:07:00,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:00,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:00,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:00,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:00,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:00,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:00,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:00,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:00,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:00,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:00,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:01,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:01,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:01,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:01,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:07:01,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:01,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:01,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:01,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:01,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:01,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:01,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-13 06:07:01,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:07:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:01,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:01,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:01,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:07:01,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:01,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 06:07:01,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:01,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:01,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:07:01,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-13 06:07:01,376 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:07:01,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783308067] [2020-10-13 06:07:01,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:01,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:01,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554069488] [2020-10-13 06:07:01,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:01,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:01,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:01,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:01,380 INFO L87 Difference]: Start difference. First operand 319 states and 378 transitions. Second operand 13 states. [2020-10-13 06:07:02,452 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:07:02,844 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:07:03,151 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:07:03,365 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:07:03,724 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:07:04,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:04,429 INFO L93 Difference]: Finished difference Result 648 states and 810 transitions. [2020-10-13 06:07:04,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:07:04,430 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 186 [2020-10-13 06:07:04,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:04,433 INFO L225 Difference]: With dead ends: 648 [2020-10-13 06:07:04,433 INFO L226 Difference]: Without dead ends: 395 [2020-10-13 06:07:04,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:07:04,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-10-13 06:07:04,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 391. [2020-10-13 06:07:04,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-10-13 06:07:04,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 456 transitions. [2020-10-13 06:07:04,454 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 456 transitions. Word has length 186 [2020-10-13 06:07:04,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:04,455 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 456 transitions. [2020-10-13 06:07:04,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:04,455 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 456 transitions. [2020-10-13 06:07:04,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-13 06:07:04,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:04,458 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:07:04,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:07:04,459 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:04,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:04,459 INFO L82 PathProgramCache]: Analyzing trace with hash 68417951, now seen corresponding path program 1 times [2020-10-13 06:07:04,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:04,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107700693] [2020-10-13 06:07:04,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:04,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:04,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:05,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:06,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:06,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-13 06:07:06,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:07:06,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1913 [2020-10-13 06:07:06,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:06,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:06,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:07:06,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:07:06,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:07,000 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-13 06:07:07,177 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:07:07,412 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 51 [2020-10-13 06:07:07,637 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 47 [2020-10-13 06:07:07,850 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 43 [2020-10-13 06:07:08,038 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 40 [2020-10-13 06:07:08,210 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 35 [2020-10-13 06:07:08,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:08,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:08,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:08,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:08,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:08,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:08,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:08,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:08,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:08,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:08,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:08,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:08,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:08,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 06:07:08,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:08,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:08,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:08,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:07:08,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:08,689 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:07:08,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107700693] [2020-10-13 06:07:08,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:08,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:08,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988111707] [2020-10-13 06:07:08,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:08,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:08,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:08,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:08,693 INFO L87 Difference]: Start difference. First operand 391 states and 456 transitions. Second operand 13 states. [2020-10-13 06:07:09,422 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2020-10-13 06:07:09,602 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:07:09,785 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:07:10,381 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 115 [2020-10-13 06:07:10,973 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 112 [2020-10-13 06:07:11,363 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2020-10-13 06:07:11,696 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 106 [2020-10-13 06:07:12,061 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 101 [2020-10-13 06:07:12,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:12,740 INFO L93 Difference]: Finished difference Result 787 states and 964 transitions. [2020-10-13 06:07:12,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:12,740 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 191 [2020-10-13 06:07:12,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:12,744 INFO L225 Difference]: With dead ends: 787 [2020-10-13 06:07:12,744 INFO L226 Difference]: Without dead ends: 442 [2020-10-13 06:07:12,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:12,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-13 06:07:12,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-13 06:07:12,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-13 06:07:12,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 508 transitions. [2020-10-13 06:07:12,777 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 508 transitions. Word has length 191 [2020-10-13 06:07:12,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:12,778 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 508 transitions. [2020-10-13 06:07:12,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:12,778 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 508 transitions. [2020-10-13 06:07:12,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-13 06:07:12,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:12,782 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, 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] [2020-10-13 06:07:12,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:07:12,782 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:12,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:12,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1790395998, now seen corresponding path program 1 times [2020-10-13 06:07:12,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:12,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156825124] [2020-10-13 06:07:12,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:12,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:15,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-13 06:07:15,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:15,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2627 [2020-10-13 06:07:15,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:07:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:07:15,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:15,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:15,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:15,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:15,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:15,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:15,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:15,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:15,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:15,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:15,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:15,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:15,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:15,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:15,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:15,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:07:15,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:15,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:15,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:15,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:15,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:15,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:15,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:16,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:16,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:07:16,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:16,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:07:16,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:16,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:16,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:16,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:07:16,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:16,121 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 06:07:16,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156825124] [2020-10-13 06:07:16,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:16,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:16,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089322240] [2020-10-13 06:07:16,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:16,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:16,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:16,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:16,124 INFO L87 Difference]: Start difference. First operand 442 states and 508 transitions. Second operand 13 states. [2020-10-13 06:07:16,993 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-13 06:07:17,324 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-13 06:07:17,526 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-13 06:07:17,833 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 06:07:18,144 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 06:07:18,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:18,488 INFO L93 Difference]: Finished difference Result 880 states and 1055 transitions. [2020-10-13 06:07:18,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:18,489 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 202 [2020-10-13 06:07:18,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:18,491 INFO L225 Difference]: With dead ends: 880 [2020-10-13 06:07:18,491 INFO L226 Difference]: Without dead ends: 504 [2020-10-13 06:07:18,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:07:18,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-10-13 06:07:18,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-10-13 06:07:18,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-10-13 06:07:18,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 576 transitions. [2020-10-13 06:07:18,511 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 576 transitions. Word has length 202 [2020-10-13 06:07:18,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:18,511 INFO L479 AbstractCegarLoop]: Abstraction has 504 states and 576 transitions. [2020-10-13 06:07:18,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:18,511 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 576 transitions. [2020-10-13 06:07:18,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-13 06:07:18,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:18,515 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, 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] [2020-10-13 06:07:18,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:07:18,515 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:18,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:18,516 INFO L82 PathProgramCache]: Analyzing trace with hash 540043566, now seen corresponding path program 1 times [2020-10-13 06:07:18,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:18,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921040013] [2020-10-13 06:07:18,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:18,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:18,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:19,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:19,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:20,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:20,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-13 06:07:20,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:20,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1945 [2020-10-13 06:07:20,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:20,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:07:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:20,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:21,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:21,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:21,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:21,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:21,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:21,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:21,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:21,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:21,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:21,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:21,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:21,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:21,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:21,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:21,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:21,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:21,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:21,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:21,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:21,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:21,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:21,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:21,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:21,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:21,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:07:21,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:21,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 06:07:21,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:21,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:21,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:21,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:07:21,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:07:21,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921040013] [2020-10-13 06:07:21,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:21,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:21,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557899995] [2020-10-13 06:07:21,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:21,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:21,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:21,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:21,281 INFO L87 Difference]: Start difference. First operand 504 states and 576 transitions. Second operand 13 states. [2020-10-13 06:07:22,361 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:07:22,720 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:07:22,969 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:07:23,225 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:07:23,542 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2020-10-13 06:07:23,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:23,924 INFO L93 Difference]: Finished difference Result 1002 states and 1186 transitions. [2020-10-13 06:07:23,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:23,925 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 205 [2020-10-13 06:07:23,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:23,928 INFO L225 Difference]: With dead ends: 1002 [2020-10-13 06:07:23,928 INFO L226 Difference]: Without dead ends: 547 [2020-10-13 06:07:23,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:23,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2020-10-13 06:07:23,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 542. [2020-10-13 06:07:23,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-10-13 06:07:23,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 621 transitions. [2020-10-13 06:07:23,949 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 621 transitions. Word has length 205 [2020-10-13 06:07:23,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:23,949 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 621 transitions. [2020-10-13 06:07:23,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:23,949 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 621 transitions. [2020-10-13 06:07:23,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-13 06:07:23,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:23,953 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:23,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:07:23,954 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:23,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:23,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1438421330, now seen corresponding path program 1 times [2020-10-13 06:07:23,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:23,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1439190291] [2020-10-13 06:07:23,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:24,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:24,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:24,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:24,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:26,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:26,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-13 06:07:26,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:26,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2081 [2020-10-13 06:07:26,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:26,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:26,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:07:26,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:26,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:26,610 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 41 [2020-10-13 06:07:26,756 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 40 [2020-10-13 06:07:26,923 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 38 [2020-10-13 06:07:27,086 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 36 [2020-10-13 06:07:27,225 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 37 [2020-10-13 06:07:27,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:27,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:27,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:27,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:27,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:27,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:27,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:27,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:27,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:27,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:27,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:27,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:27,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:27,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:27,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:27,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:07:27,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:27,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:27,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:27,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:27,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:27,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:27,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:27,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:07:27,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:27,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:07:27,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:27,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:27,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:27,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:07:27,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,525 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:07:27,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1439190291] [2020-10-13 06:07:27,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:27,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:27,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754160291] [2020-10-13 06:07:27,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:27,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:27,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:27,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:27,528 INFO L87 Difference]: Start difference. First operand 542 states and 621 transitions. Second operand 13 states. [2020-10-13 06:07:28,342 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:07:28,737 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:07:29,127 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-13 06:07:29,419 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-13 06:07:29,766 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2020-10-13 06:07:30,131 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 87 [2020-10-13 06:07:30,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:30,551 INFO L93 Difference]: Finished difference Result 1080 states and 1278 transitions. [2020-10-13 06:07:30,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:07:30,552 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 208 [2020-10-13 06:07:30,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:30,556 INFO L225 Difference]: With dead ends: 1080 [2020-10-13 06:07:30,556 INFO L226 Difference]: Without dead ends: 587 [2020-10-13 06:07:30,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:07:30,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-10-13 06:07:30,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 585. [2020-10-13 06:07:30,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-13 06:07:30,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 671 transitions. [2020-10-13 06:07:30,580 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 671 transitions. Word has length 208 [2020-10-13 06:07:30,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:30,581 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 671 transitions. [2020-10-13 06:07:30,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:30,581 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 671 transitions. [2020-10-13 06:07:30,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-13 06:07:30,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:30,584 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:30,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:07:30,584 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:30,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:30,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1138109703, now seen corresponding path program 1 times [2020-10-13 06:07:30,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:30,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751988674] [2020-10-13 06:07:30,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:30,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:30,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:30,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:30,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:31,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:33,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:33,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-13 06:07:33,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:07:33,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2571 [2020-10-13 06:07:33,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:33,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:33,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:07:33,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:33,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:33,546 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 37 [2020-10-13 06:07:33,694 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 37 [2020-10-13 06:07:34,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:34,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:34,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:34,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:34,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:34,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:07:34,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:34,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:34,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:34,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:34,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:34,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:34,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:34,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:34,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:07:34,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:34,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:07:34,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:34,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:34,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:34,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:34,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:34,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:07:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:34,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:34,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:34,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:07:34,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:34,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:07:34,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:34,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:34,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:34,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:34,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:34,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:07:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:34,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:34,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:34,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:07:34,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:34,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:07:34,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:34,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:34,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:34,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:07:34,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:34,615 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:07:34,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751988674] [2020-10-13 06:07:34,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:34,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:34,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219090090] [2020-10-13 06:07:34,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:34,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:34,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:34,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:34,617 INFO L87 Difference]: Start difference. First operand 585 states and 671 transitions. Second operand 13 states. [2020-10-13 06:07:35,887 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-13 06:07:36,473 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-10-13 06:07:36,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:36,787 INFO L93 Difference]: Finished difference Result 1162 states and 1374 transitions. [2020-10-13 06:07:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:07:36,790 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 212 [2020-10-13 06:07:36,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:36,794 INFO L225 Difference]: With dead ends: 1162 [2020-10-13 06:07:36,794 INFO L226 Difference]: Without dead ends: 626 [2020-10-13 06:07:36,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:36,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2020-10-13 06:07:36,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 585. [2020-10-13 06:07:36,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-13 06:07:36,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 671 transitions. [2020-10-13 06:07:36,817 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 671 transitions. Word has length 212 [2020-10-13 06:07:36,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:36,818 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 671 transitions. [2020-10-13 06:07:36,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:36,818 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 671 transitions. [2020-10-13 06:07:36,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-13 06:07:36,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:36,821 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:36,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:07:36,822 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:36,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:36,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1947405271, now seen corresponding path program 1 times [2020-10-13 06:07:36,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:36,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317970521] [2020-10-13 06:07:36,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:36,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:36,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:40,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:40,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-13 06:07:40,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:07:40,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3865 [2020-10-13 06:07:40,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:40,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:40,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:07:40,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:07:40,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:41,336 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 41 [2020-10-13 06:07:41,490 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 39 [2020-10-13 06:07:41,657 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 37 [2020-10-13 06:07:41,819 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 35 [2020-10-13 06:07:41,978 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 32 [2020-10-13 06:07:42,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:42,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:42,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:42,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:42,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:42,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:42,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:42,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:42,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:42,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:42,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:42,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:42,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:42,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:42,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:07:42,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:42,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:42,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:42,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:42,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:42,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:42,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:42,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:07:42,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:42,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:07:42,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:42,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:42,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:42,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:42,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:42,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:07:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:42,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:42,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:42,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:07:42,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:42,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:07:42,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:42,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:42,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:42,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:07:42,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:42,312 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-13 06:07:42,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317970521] [2020-10-13 06:07:42,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:42,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:42,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44226807] [2020-10-13 06:07:42,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:42,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:42,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:42,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:42,315 INFO L87 Difference]: Start difference. First operand 585 states and 671 transitions. Second operand 13 states. [2020-10-13 06:07:42,502 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:07:42,640 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 06:07:42,981 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:07:43,474 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-13 06:07:43,778 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2020-10-13 06:07:44,064 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-10-13 06:07:44,288 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-10-13 06:07:45,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:45,212 INFO L93 Difference]: Finished difference Result 1197 states and 1422 transitions. [2020-10-13 06:07:45,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:07:45,215 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 218 [2020-10-13 06:07:45,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:45,218 INFO L225 Difference]: With dead ends: 1197 [2020-10-13 06:07:45,218 INFO L226 Difference]: Without dead ends: 678 [2020-10-13 06:07:45,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:07:45,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-10-13 06:07:45,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 593. [2020-10-13 06:07:45,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-13 06:07:45,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 682 transitions. [2020-10-13 06:07:45,252 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 682 transitions. Word has length 218 [2020-10-13 06:07:45,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:45,253 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 682 transitions. [2020-10-13 06:07:45,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:45,253 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 682 transitions. [2020-10-13 06:07:45,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-13 06:07:45,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:45,256 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:45,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:07:45,256 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:45,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:45,257 INFO L82 PathProgramCache]: Analyzing trace with hash 432239761, now seen corresponding path program 1 times [2020-10-13 06:07:45,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:45,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980281218] [2020-10-13 06:07:45,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:45,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:45,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:48,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:48,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-13 06:07:48,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:07:48,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3686 [2020-10-13 06:07:48,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:48,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:48,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:07:48,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:48,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:49,407 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:07:49,546 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-13 06:07:49,682 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2020-10-13 06:07:49,845 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 36 [2020-10-13 06:07:49,992 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 33 [2020-10-13 06:07:50,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:50,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:07:50,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:50,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:50,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:50,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:50,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:07:50,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:50,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:50,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:50,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:07:50,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:07:50,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:50,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:50,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:50,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:07:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:07:50,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:07:50,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:50,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:50,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:07:50,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,418 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:07:50,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980281218] [2020-10-13 06:07:50,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:50,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:50,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976160288] [2020-10-13 06:07:50,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:50,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:50,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:50,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:50,420 INFO L87 Difference]: Start difference. First operand 593 states and 682 transitions. Second operand 13 states. [2020-10-13 06:07:51,025 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:07:51,402 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 06:07:51,706 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 06:07:51,875 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 06:07:52,261 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:07:52,526 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 06:07:53,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:53,039 INFO L93 Difference]: Finished difference Result 1183 states and 1405 transitions. [2020-10-13 06:07:53,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:07:53,040 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 230 [2020-10-13 06:07:53,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:53,044 INFO L225 Difference]: With dead ends: 1183 [2020-10-13 06:07:53,044 INFO L226 Difference]: Without dead ends: 639 [2020-10-13 06:07:53,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:53,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2020-10-13 06:07:53,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 593. [2020-10-13 06:07:53,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-13 06:07:53,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 681 transitions. [2020-10-13 06:07:53,074 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 681 transitions. Word has length 230 [2020-10-13 06:07:53,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:53,074 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 681 transitions. [2020-10-13 06:07:53,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:53,075 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 681 transitions. [2020-10-13 06:07:53,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-13 06:07:53,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:53,078 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:07:53,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:07:53,079 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:53,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:53,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1358966694, now seen corresponding path program 1 times [2020-10-13 06:07:53,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:53,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540529820] [2020-10-13 06:07:53,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:53,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:53,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:53,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:53,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:55,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:55,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-13 06:07:55,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:55,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1929 [2020-10-13 06:07:55,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:55,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:55,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:07:55,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:07:55,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:55,449 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-10-13 06:07:55,626 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2020-10-13 06:07:55,781 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 44 [2020-10-13 06:07:55,927 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 40 [2020-10-13 06:07:56,053 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 36 [2020-10-13 06:07:56,178 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 32 [2020-10-13 06:07:56,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:56,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:56,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:56,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:56,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:56,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:56,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:56,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:56,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:56,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:56,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:56,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:56,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:56,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:56,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:56,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:56,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:56,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:56,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:56,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:56,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:07:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:56,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:56,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:56,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:07:56,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:56,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:07:56,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:56,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:56,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:56,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:07:56,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:56,595 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:07:56,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540529820] [2020-10-13 06:07:56,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:56,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:56,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118591105] [2020-10-13 06:07:56,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:56,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:56,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:56,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:56,597 INFO L87 Difference]: Start difference. First operand 593 states and 681 transitions. Second operand 13 states. [2020-10-13 06:07:57,379 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:07:57,683 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-13 06:07:57,995 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:07:58,602 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2020-10-13 06:07:58,943 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2020-10-13 06:07:59,279 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 98 [2020-10-13 06:07:59,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:59,713 INFO L93 Difference]: Finished difference Result 1184 states and 1408 transitions. [2020-10-13 06:07:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:07:59,714 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 242 [2020-10-13 06:07:59,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:59,717 INFO L225 Difference]: With dead ends: 1184 [2020-10-13 06:07:59,717 INFO L226 Difference]: Without dead ends: 610 [2020-10-13 06:07:59,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:07:59,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-10-13 06:07:59,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 608. [2020-10-13 06:07:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-10-13 06:07:59,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 697 transitions. [2020-10-13 06:07:59,739 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 697 transitions. Word has length 242 [2020-10-13 06:07:59,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:59,740 INFO L479 AbstractCegarLoop]: Abstraction has 608 states and 697 transitions. [2020-10-13 06:07:59,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:59,740 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 697 transitions. [2020-10-13 06:07:59,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-13 06:07:59,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:59,743 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:07:59,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:07:59,743 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:59,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:59,744 INFO L82 PathProgramCache]: Analyzing trace with hash -209743673, now seen corresponding path program 1 times [2020-10-13 06:07:59,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:59,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881375973] [2020-10-13 06:07:59,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:59,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:59,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-13 06:08:00,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:00,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1030 [2020-10-13 06:08:00,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:08:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:08:00,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:00,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:00,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:00,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:00,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:00,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:00,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:00,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:00,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:00,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:00,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:08:00,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:00,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:00,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:00,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:00,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:00,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:00,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:08:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:00,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:08:00,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:00,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:00,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:00,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:00,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:00,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:00,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:08:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:01,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:01,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:01,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:08:01,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:01,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:08:01,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:01,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:01,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:01,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:08:01,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:01,153 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 06:08:01,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881375973] [2020-10-13 06:08:01,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:01,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:01,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067435782] [2020-10-13 06:08:01,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:01,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:01,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:01,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:01,155 INFO L87 Difference]: Start difference. First operand 608 states and 697 transitions. Second operand 5 states. [2020-10-13 06:08:02,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:02,158 INFO L93 Difference]: Finished difference Result 1236 states and 1473 transitions. [2020-10-13 06:08:02,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:02,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 244 [2020-10-13 06:08:02,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:02,161 INFO L225 Difference]: With dead ends: 1236 [2020-10-13 06:08:02,161 INFO L226 Difference]: Without dead ends: 271 [2020-10-13 06:08:02,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:02,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-13 06:08:02,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-13 06:08:02,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 06:08:02,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 302 transitions. [2020-10-13 06:08:02,172 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 302 transitions. Word has length 244 [2020-10-13 06:08:02,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:02,173 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 302 transitions. [2020-10-13 06:08:02,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:02,173 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 302 transitions. [2020-10-13 06:08:02,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-13 06:08:02,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:02,175 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:02,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:08:02,175 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:02,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:02,176 INFO L82 PathProgramCache]: Analyzing trace with hash -257313973, now seen corresponding path program 1 times [2020-10-13 06:08:02,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:02,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946553785] [2020-10-13 06:08:02,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:02,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:02,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:02,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:03,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:03,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:03,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:05,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:05,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-13 06:08:05,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:08:05,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3557 [2020-10-13 06:08:05,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:05,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:05,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:08:05,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:08:05,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:06,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:06,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:06,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:06,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:06,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:06,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:06,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:06,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:06,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:06,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:06,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:06,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:06,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:06,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:08:06,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:06,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:06,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:06,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:06,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:06,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:06,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:06,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:06,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:06,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:06,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:06,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:06,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:06,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:06,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:06,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:06,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:06,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:06,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:06,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:06,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:06,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:08:06,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:08:06,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:06,678 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:08:06,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946553785] [2020-10-13 06:08:06,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:06,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:06,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033180311] [2020-10-13 06:08:06,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:06,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:06,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:06,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:06,680 INFO L87 Difference]: Start difference. First operand 271 states and 302 transitions. Second operand 13 states. [2020-10-13 06:08:07,259 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-13 06:08:07,503 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:08:07,750 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:08:07,973 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:08:08,339 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:08:08,655 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:08:09,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:09,087 INFO L93 Difference]: Finished difference Result 551 states and 646 transitions. [2020-10-13 06:08:09,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:08:09,088 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 255 [2020-10-13 06:08:09,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:09,091 INFO L225 Difference]: With dead ends: 551 [2020-10-13 06:08:09,091 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:08:09,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:08:09,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:08:09,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:08:09,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:08:09,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 383 transitions. [2020-10-13 06:08:09,102 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 383 transitions. Word has length 255 [2020-10-13 06:08:09,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:09,103 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 383 transitions. [2020-10-13 06:08:09,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:09,103 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 383 transitions. [2020-10-13 06:08:09,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-13 06:08:09,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:09,106 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:09,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:08:09,106 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:09,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:09,106 INFO L82 PathProgramCache]: Analyzing trace with hash 682397726, now seen corresponding path program 1 times [2020-10-13 06:08:09,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:09,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988863584] [2020-10-13 06:08:09,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:09,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:09,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:09,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:09,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-10-13 06:08:09,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:09,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 554 [2020-10-13 06:08:09,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 06:08:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:08:09,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:09,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:09,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:09,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:09,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:09,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:09,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:09,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:09,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:09,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:09,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:09,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:09,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:09,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:09,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:09,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:09,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:09,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:08:09,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:09,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:09,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:09,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:09,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:09,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:09,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:09,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:09,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:09,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:09,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:08:09,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:09,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:09,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:09,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:09,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:09,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:09,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:09,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:09,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:09,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:09,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:09,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:09,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:09,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:09,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:09,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:09,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:09,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:09,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:09,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:08:09,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:09,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:09,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:09,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:09,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:09,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 06:08:09,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 132 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-13 06:08:10,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988863584] [2020-10-13 06:08:10,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:10,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:10,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58585438] [2020-10-13 06:08:10,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:10,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:10,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:10,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:10,104 INFO L87 Difference]: Start difference. First operand 346 states and 383 transitions. Second operand 5 states. [2020-10-13 06:08:10,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:10,966 INFO L93 Difference]: Finished difference Result 708 states and 817 transitions. [2020-10-13 06:08:10,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:10,967 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 267 [2020-10-13 06:08:10,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:10,970 INFO L225 Difference]: With dead ends: 708 [2020-10-13 06:08:10,970 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:08:10,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:10,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:08:10,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:08:10,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:08:10,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 381 transitions. [2020-10-13 06:08:10,981 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 381 transitions. Word has length 267 [2020-10-13 06:08:10,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:10,982 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 381 transitions. [2020-10-13 06:08:10,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:10,982 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 381 transitions. [2020-10-13 06:08:10,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-13 06:08:10,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:10,984 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:08:10,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:08:10,985 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:10,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:10,985 INFO L82 PathProgramCache]: Analyzing trace with hash -287056702, now seen corresponding path program 1 times [2020-10-13 06:08:10,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:10,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407304274] [2020-10-13 06:08:10,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:11,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:12,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:12,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-13 06:08:12,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:12,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1638 [2020-10-13 06:08:12,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:08:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:08:12,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:13,237 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 43 [2020-10-13 06:08:13,407 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 41 [2020-10-13 06:08:13,563 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 39 [2020-10-13 06:08:13,728 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2020-10-13 06:08:13,880 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 35 [2020-10-13 06:08:13,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:13,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:13,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:13,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:13,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:13,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:13,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:13,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:13,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:13,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:13,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:13,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:13,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:13,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:13,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:13,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:13,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:13,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:13,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:13,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:13,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:13,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:13,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:14,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:14,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:14,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:14,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:14,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:14,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:14,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:14,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:14,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:14,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:14,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:14,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:14,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:14,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:14,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:14,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:14,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:14,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:14,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:14,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:14,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:14,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:14,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:08:14,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:14,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:14,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:14,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:08:14,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:14,211 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-13 06:08:14,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407304274] [2020-10-13 06:08:14,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:14,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:14,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242286389] [2020-10-13 06:08:14,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:14,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:14,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:14,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:14,213 INFO L87 Difference]: Start difference. First operand 346 states and 381 transitions. Second operand 13 states. [2020-10-13 06:08:14,893 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:08:15,232 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2020-10-13 06:08:15,559 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2020-10-13 06:08:15,905 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2020-10-13 06:08:16,215 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-10-13 06:08:16,642 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-10-13 06:08:17,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:17,029 INFO L93 Difference]: Finished difference Result 698 states and 802 transitions. [2020-10-13 06:08:17,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:08:17,030 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 270 [2020-10-13 06:08:17,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:17,034 INFO L225 Difference]: With dead ends: 698 [2020-10-13 06:08:17,034 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:08:17,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:08:17,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:08:17,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:08:17,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:08:17,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 460 transitions. [2020-10-13 06:08:17,046 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 460 transitions. Word has length 270 [2020-10-13 06:08:17,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:17,047 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 460 transitions. [2020-10-13 06:08:17,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:17,047 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 460 transitions. [2020-10-13 06:08:17,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-13 06:08:17,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:17,049 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2020-10-13 06:08:17,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:08:17,050 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:17,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:17,050 INFO L82 PathProgramCache]: Analyzing trace with hash 2020410814, now seen corresponding path program 1 times [2020-10-13 06:08:17,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:17,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909988184] [2020-10-13 06:08:17,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:17,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:17,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:17,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:17,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-13 06:08:17,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:17,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 608 [2020-10-13 06:08:17,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:17,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:17,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:08:17,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:08:17,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:17,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:17,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:17,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:17,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:17,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:17,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:17,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:17,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:17,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:17,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:17,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:17,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:17,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:17,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:17,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:17,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:17,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:08:17,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:17,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:17,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:17,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:17,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:17,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:17,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:17,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:17,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:17,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:17,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:17,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:17,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:17,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:17,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:17,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:17,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:17,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:17,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:17,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:17,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:17,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:17,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:17,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:17,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:17,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:17,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:17,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:17,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:17,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:17,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:08:17,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:17,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:17,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:17,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:17,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:17,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:08:17,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:18,065 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 137 proven. 4 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 06:08:18,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909988184] [2020-10-13 06:08:18,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:18,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:08:18,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731586667] [2020-10-13 06:08:18,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:08:18,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:18,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:08:18,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:18,067 INFO L87 Difference]: Start difference. First operand 418 states and 460 transitions. Second operand 6 states. [2020-10-13 06:08:19,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:19,047 INFO L93 Difference]: Finished difference Result 851 states and 970 transitions. [2020-10-13 06:08:19,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:19,051 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 272 [2020-10-13 06:08:19,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:19,054 INFO L225 Difference]: With dead ends: 851 [2020-10-13 06:08:19,054 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:08:19,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:08:19,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:08:19,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:08:19,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:08:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 458 transitions. [2020-10-13 06:08:19,066 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 458 transitions. Word has length 272 [2020-10-13 06:08:19,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:19,067 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 458 transitions. [2020-10-13 06:08:19,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:08:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 458 transitions. [2020-10-13 06:08:19,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-10-13 06:08:19,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:19,070 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:08:19,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:08:19,071 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:19,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:19,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1419757061, now seen corresponding path program 1 times [2020-10-13 06:08:19,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:19,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441380915] [2020-10-13 06:08:19,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:19,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:19,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:19,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:20,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:20,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-13 06:08:20,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:20,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1151 [2020-10-13 06:08:20,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:20,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:20,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:08:20,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:08:20,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:20,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:20,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:20,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:20,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:20,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:20,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:08:20,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:20,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:20,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:20,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:20,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:20,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:20,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:20,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:20,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:20,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:20,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:20,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:20,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:20,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:20,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:20,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:20,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:20,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:20,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:20,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:20,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:20,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:08:20,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:20,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:20,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:20,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:20,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:20,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:20,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:20,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:20,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:20,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:20,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:20,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:20,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:20,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:20,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:20,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:20,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:20,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:20,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:20,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:20,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:20,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:08:20,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:20,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:20,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:20,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:20,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:20,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:20,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:20,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:20,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:08:20,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:20,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:08:20,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:20,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:20,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:08:20,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:20,659 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-13 06:08:20,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [441380915] [2020-10-13 06:08:20,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:20,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:20,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719442592] [2020-10-13 06:08:20,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:20,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:20,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:20,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:20,661 INFO L87 Difference]: Start difference. First operand 418 states and 458 transitions. Second operand 5 states. [2020-10-13 06:08:21,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:21,564 INFO L93 Difference]: Finished difference Result 849 states and 963 transitions. [2020-10-13 06:08:21,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:21,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 290 [2020-10-13 06:08:21,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:21,573 INFO L225 Difference]: With dead ends: 849 [2020-10-13 06:08:21,573 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:08:21,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:21,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:08:21,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:08:21,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:08:21,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 456 transitions. [2020-10-13 06:08:21,586 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 456 transitions. Word has length 290 [2020-10-13 06:08:21,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:21,586 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 456 transitions. [2020-10-13 06:08:21,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:21,587 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 456 transitions. [2020-10-13 06:08:21,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-10-13 06:08:21,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:21,589 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:21,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:08:21,590 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:21,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:21,590 INFO L82 PathProgramCache]: Analyzing trace with hash -329517454, now seen corresponding path program 1 times [2020-10-13 06:08:21,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:21,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480276061] [2020-10-13 06:08:21,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:21,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:21,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:22,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:22,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 305 [2020-10-13 06:08:22,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 789 [2020-10-13 06:08:22,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:08:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:08:22,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:22,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:22,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:22,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:22,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:22,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:22,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:22,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:22,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:22,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:22,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:22,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:22,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:22,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:22,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:22,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:22,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:22,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:08:22,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:22,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:22,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:22,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:22,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:22,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:22,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:22,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:22,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:08:22,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:22,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:22,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:22,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:22,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:22,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:22,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:22,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:22,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:22,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:22,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:22,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:22,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:22,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:22,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:22,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:22,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:22,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:22,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:22,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:08:22,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:22,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:08:22,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:22,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:22,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:22,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:08:22,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:22,836 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 154 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-13 06:08:22,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480276061] [2020-10-13 06:08:22,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:22,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:22,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711250832] [2020-10-13 06:08:22,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:22,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:22,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:22,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:22,838 INFO L87 Difference]: Start difference. First operand 418 states and 456 transitions. Second operand 5 states. [2020-10-13 06:08:23,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:23,778 INFO L93 Difference]: Finished difference Result 853 states and 962 transitions. [2020-10-13 06:08:23,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:23,779 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 289 [2020-10-13 06:08:23,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:23,781 INFO L225 Difference]: With dead ends: 853 [2020-10-13 06:08:23,782 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:08:23,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:23,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:08:23,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:08:23,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:08:23,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 454 transitions. [2020-10-13 06:08:23,793 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 454 transitions. Word has length 289 [2020-10-13 06:08:23,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:23,794 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 454 transitions. [2020-10-13 06:08:23,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:23,794 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 454 transitions. [2020-10-13 06:08:23,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-13 06:08:23,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:23,796 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:08:23,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:08:23,797 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:23,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:23,797 INFO L82 PathProgramCache]: Analyzing trace with hash -950417009, now seen corresponding path program 1 times [2020-10-13 06:08:23,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:23,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760268639] [2020-10-13 06:08:23,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:23,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:24,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:24,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:26,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:26,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-13 06:08:26,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:26,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2251 [2020-10-13 06:08:26,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:26,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:26,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:08:26,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:08:26,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:26,516 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:08:26,649 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:08:26,775 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2020-10-13 06:08:27,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:27,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:27,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:27,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:27,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:08:27,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:27,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:27,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:27,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:27,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:27,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:27,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:27,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:27,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:27,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:27,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:27,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:27,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:27,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:27,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:27,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:27,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:27,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:27,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:27,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:08:27,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:27,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:27,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:27,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:27,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:27,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:27,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:27,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:27,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:27,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:27,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:27,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:27,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:27,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:27,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:27,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:27,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:27,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:27,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:27,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:27,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:27,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:27,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:27,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:27,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:08:27,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:27,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:08:27,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:27,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:27,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:27,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:08:27,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:27,420 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-10-13 06:08:27,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760268639] [2020-10-13 06:08:27,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:27,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:27,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979066343] [2020-10-13 06:08:27,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:27,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:27,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:27,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:27,422 INFO L87 Difference]: Start difference. First operand 418 states and 454 transitions. Second operand 13 states. [2020-10-13 06:08:28,055 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:08:28,388 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:08:28,832 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:08:29,185 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:08:29,572 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:08:29,969 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:08:30,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:30,281 INFO L93 Difference]: Finished difference Result 835 states and 937 transitions. [2020-10-13 06:08:30,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:08:30,282 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 299 [2020-10-13 06:08:30,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:30,285 INFO L225 Difference]: With dead ends: 835 [2020-10-13 06:08:30,285 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:08:30,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:08:30,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:08:30,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:08:30,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:30,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:08:30,298 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 299 [2020-10-13 06:08:30,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:30,299 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:08:30,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:30,299 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:08:30,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-13 06:08:30,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:30,302 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 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] [2020-10-13 06:08:30,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:08:30,302 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:30,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:30,303 INFO L82 PathProgramCache]: Analyzing trace with hash -139569290, now seen corresponding path program 1 times [2020-10-13 06:08:30,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:30,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728873062] [2020-10-13 06:08:30,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:30,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:30,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:30,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:30,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-13 06:08:30,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:30,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-10-13 06:08:30,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-13 06:08:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:08:30,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:30,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:30,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:30,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:30,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:30,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:30,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:30,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:30,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:30,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:30,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:30,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:31,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:31,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:31,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:31,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:31,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:31,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:31,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:31,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:31,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:31,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:31,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:31,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:31,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:31,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:31,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:31,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:31,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:31,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:31,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:31,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:31,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:31,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:31,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:31,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:31,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:31,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 06:08:31,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:31,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 06:08:31,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:08:31,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:31,259 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 173 proven. 4 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2020-10-13 06:08:31,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728873062] [2020-10-13 06:08:31,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:31,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:31,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246329798] [2020-10-13 06:08:31,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:31,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:31,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:31,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:31,261 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 5 states. [2020-10-13 06:08:32,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:32,120 INFO L93 Difference]: Finished difference Result 984 states and 1109 transitions. [2020-10-13 06:08:32,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:32,123 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 308 [2020-10-13 06:08:32,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:32,124 INFO L225 Difference]: With dead ends: 984 [2020-10-13 06:08:32,125 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:08:32,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:32,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:08:32,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:08:32,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:32,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:08:32,138 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 308 [2020-10-13 06:08:32,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:32,138 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:08:32,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:32,139 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:08:32,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-10-13 06:08:32,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:32,141 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:08:32,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:08:32,142 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:32,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:32,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1948695731, now seen corresponding path program 1 times [2020-10-13 06:08:32,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:32,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004905416] [2020-10-13 06:08:32,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:32,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:32,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:32,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:32,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 331 [2020-10-13 06:08:32,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:32,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 668 [2020-10-13 06:08:32,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:08:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:08:32,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:33,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:33,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:33,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:33,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:33,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:33,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:33,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:33,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:33,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:33,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:33,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:33,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:33,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:33,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:33,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:33,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:33,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:08:33,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:33,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:33,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:33,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:33,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:33,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:33,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:33,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:33,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:33,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:33,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:33,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:33,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:33,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:33,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:33,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:33,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:33,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:33,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:33,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:33,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:33,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:33,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:33,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:33,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:33,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:33,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:33,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:33,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:33,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:33,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:33,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:33,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:33,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:33,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:33,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:08:33,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:33,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:08:33,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:33,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:08:33,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:33,330 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-13 06:08:33,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004905416] [2020-10-13 06:08:33,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:33,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:08:33,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563243934] [2020-10-13 06:08:33,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:08:33,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:33,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:08:33,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:33,331 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 6 states. [2020-10-13 06:08:34,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:34,253 INFO L93 Difference]: Finished difference Result 978 states and 1098 transitions. [2020-10-13 06:08:34,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:34,254 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 313 [2020-10-13 06:08:34,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:34,257 INFO L225 Difference]: With dead ends: 978 [2020-10-13 06:08:34,257 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:08:34,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:08:34,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:08:34,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:08:34,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:34,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 525 transitions. [2020-10-13 06:08:34,270 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 525 transitions. Word has length 313 [2020-10-13 06:08:34,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:34,270 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 525 transitions. [2020-10-13 06:08:34,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:08:34,270 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 525 transitions. [2020-10-13 06:08:34,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-10-13 06:08:34,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:34,278 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 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] [2020-10-13 06:08:34,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:08:34,278 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:34,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:34,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1905214695, now seen corresponding path program 1 times [2020-10-13 06:08:34,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:34,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239021312] [2020-10-13 06:08:34,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:34,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:34,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:34,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:36,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:36,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-13 06:08:36,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:36,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2126 [2020-10-13 06:08:36,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:36,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:36,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-13 06:08:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:08:36,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:36,931 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:08:37,068 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:08:37,194 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-13 06:08:37,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:37,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:37,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:37,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:37,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:37,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:37,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:37,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:37,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:37,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:37,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:37,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:37,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:37,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:37,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:37,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:37,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:37,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:37,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:37,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:37,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:37,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:37,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:37,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:37,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:37,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:08:37,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:37,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:37,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:37,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:37,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:37,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:37,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:37,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:37,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:37,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:37,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:37,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:37,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:37,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:37,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:37,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:37,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:37,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:37,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:37,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:37,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:37,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:37,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:37,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:37,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:37,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:08:37,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:37,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:08:37,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:37,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:37,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:37,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 06:08:37,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:37,892 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 183 proven. 5 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-10-13 06:08:37,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239021312] [2020-10-13 06:08:37,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:37,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:08:37,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694230267] [2020-10-13 06:08:37,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:08:37,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:37,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:08:37,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:08:37,894 INFO L87 Difference]: Start difference. First operand 483 states and 525 transitions. Second operand 14 states. [2020-10-13 06:08:38,617 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-13 06:08:38,938 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2020-10-13 06:08:39,323 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-13 06:08:39,665 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-10-13 06:08:39,882 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-10-13 06:08:40,166 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-13 06:08:40,435 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-13 06:08:40,878 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-13 06:08:41,042 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-10-13 06:08:41,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:41,378 INFO L93 Difference]: Finished difference Result 962 states and 1072 transitions. [2020-10-13 06:08:41,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:08:41,379 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 319 [2020-10-13 06:08:41,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:41,382 INFO L225 Difference]: With dead ends: 962 [2020-10-13 06:08:41,382 INFO L226 Difference]: Without dead ends: 545 [2020-10-13 06:08:41,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=211, Invalid=491, Unknown=0, NotChecked=0, Total=702 [2020-10-13 06:08:41,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-13 06:08:41,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2020-10-13 06:08:41,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:08:41,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 589 transitions. [2020-10-13 06:08:41,396 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 589 transitions. Word has length 319 [2020-10-13 06:08:41,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:41,397 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 589 transitions. [2020-10-13 06:08:41,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:08:41,397 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 589 transitions. [2020-10-13 06:08:41,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-13 06:08:41,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:41,400 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:08:41,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:08:41,400 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:41,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:41,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1445300202, now seen corresponding path program 1 times [2020-10-13 06:08:41,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:41,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104775168] [2020-10-13 06:08:41,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:41,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:41,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:41,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:42,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:44,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:44,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 344 [2020-10-13 06:08:44,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:44,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2569 [2020-10-13 06:08:44,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:44,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:44,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:08:44,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:08:44,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:44,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:44,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:44,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:44,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:44,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:44,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:44,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:44,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:44,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:44,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:44,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:44,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:44,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:44,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:44,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:44,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:44,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:44,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:44,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:44,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:44,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:44,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:44,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:44,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:44,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:44,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:44,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:44,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:44,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:44,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:44,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:44,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:44,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:44,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:44,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:44,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:44,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:44,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:44,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:44,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:44,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:44,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:44,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:44,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:44,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:44,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:44,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:44,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:44,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:44,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:44,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:44,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:44,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:44,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:08:44,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:44,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:08:44,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:44,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:44,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:44,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:44,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:44,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:08:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:44,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:44,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:44,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:08:44,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:44,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:08:44,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:08:44,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:44,513 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-13 06:08:44,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104775168] [2020-10-13 06:08:44,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:44,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:44,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94554323] [2020-10-13 06:08:44,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:44,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:44,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:44,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:44,514 INFO L87 Difference]: Start difference. First operand 539 states and 589 transitions. Second operand 5 states. [2020-10-13 06:08:45,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:45,447 INFO L93 Difference]: Finished difference Result 1088 states and 1221 transitions. [2020-10-13 06:08:45,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:45,449 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 324 [2020-10-13 06:08:45,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:45,452 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:08:45,452 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:08:45,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:45,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:08:45,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-13 06:08:45,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:08:45,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 587 transitions. [2020-10-13 06:08:45,469 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 587 transitions. Word has length 324 [2020-10-13 06:08:45,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:45,469 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 587 transitions. [2020-10-13 06:08:45,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:45,470 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 587 transitions. [2020-10-13 06:08:45,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-13 06:08:45,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:45,474 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:45,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:08:45,474 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:45,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:45,475 INFO L82 PathProgramCache]: Analyzing trace with hash 2011849038, now seen corresponding path program 1 times [2020-10-13 06:08:45,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:45,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058956462] [2020-10-13 06:08:45,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:45,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:45,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:46,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:46,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 344 [2020-10-13 06:08:46,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:46,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 685 [2020-10-13 06:08:46,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:08:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:08:46,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:46,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:46,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:46,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:46,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:46,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:46,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:46,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:46,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:46,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:46,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:46,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:46,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:46,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:46,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:46,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:46,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:46,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:08:46,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:46,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:46,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:46,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:46,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:46,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:46,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:46,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:46,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:46,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:46,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:46,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:46,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:46,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:46,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:46,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:46,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:46,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:46,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:46,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:46,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:46,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:46,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:46,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:46,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:08:46,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:46,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:08:46,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:08:46,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:46,719 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-13 06:08:46,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058956462] [2020-10-13 06:08:46,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:46,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:46,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027039663] [2020-10-13 06:08:46,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:46,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:46,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:46,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:46,721 INFO L87 Difference]: Start difference. First operand 539 states and 587 transitions. Second operand 5 states. [2020-10-13 06:08:47,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:47,642 INFO L93 Difference]: Finished difference Result 1097 states and 1224 transitions. [2020-10-13 06:08:47,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:47,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 328 [2020-10-13 06:08:47,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:47,646 INFO L225 Difference]: With dead ends: 1097 [2020-10-13 06:08:47,646 INFO L226 Difference]: Without dead ends: 481 [2020-10-13 06:08:47,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:47,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-13 06:08:47,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-13 06:08:47,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 06:08:47,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 526 transitions. [2020-10-13 06:08:47,657 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 526 transitions. Word has length 328 [2020-10-13 06:08:47,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:47,658 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 526 transitions. [2020-10-13 06:08:47,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:47,658 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 526 transitions. [2020-10-13 06:08:47,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-10-13 06:08:47,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:47,661 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 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] [2020-10-13 06:08:47,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:08:47,661 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:47,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:47,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1288469806, now seen corresponding path program 1 times [2020-10-13 06:08:47,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:47,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814756716] [2020-10-13 06:08:47,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:47,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:47,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:47,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:48,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:50,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:50,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 357 [2020-10-13 06:08:50,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:50,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2622 [2020-10-13 06:08:50,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:50,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:50,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 06:08:50,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:08:50,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:51,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:51,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:51,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:51,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:51,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:51,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:51,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:51,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:51,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:51,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:51,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:51,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:51,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:51,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:51,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:51,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:51,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:51,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:51,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:51,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:51,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:51,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:51,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:51,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:51,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:51,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:51,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:51,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:51,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:51,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:51,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:51,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:51,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:51,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:51,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:51,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:51,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:51,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:51,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:51,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:51,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:51,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:51,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:51,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:51,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:51,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:51,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:51,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:51,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:51,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:51,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:51,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:51,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:08:51,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:51,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:51,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:51,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:51,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:08:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:51,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:51,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:51,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 06:08:51,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:51,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:08:51,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:08:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:51,570 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-10-13 06:08:51,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814756716] [2020-10-13 06:08:51,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:51,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:51,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334579357] [2020-10-13 06:08:51,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:51,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:51,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:51,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:51,572 INFO L87 Difference]: Start difference. First operand 481 states and 526 transitions. Second operand 13 states. [2020-10-13 06:08:52,086 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-13 06:08:52,230 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-13 06:08:52,380 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-13 06:08:53,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:53,205 INFO L93 Difference]: Finished difference Result 969 states and 1090 transitions. [2020-10-13 06:08:53,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:08:53,212 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 337 [2020-10-13 06:08:53,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:53,214 INFO L225 Difference]: With dead ends: 969 [2020-10-13 06:08:53,214 INFO L226 Difference]: Without dead ends: 496 [2020-10-13 06:08:53,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:08:53,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-13 06:08:53,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2020-10-13 06:08:53,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:08:53,228 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 337 [2020-10-13 06:08:53,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:53,229 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:08:53,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:53,229 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:08:53,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-10-13 06:08:53,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:53,232 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:08:53,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:08:53,232 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:53,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:53,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1119690399, now seen corresponding path program 1 times [2020-10-13 06:08:53,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:53,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455098625] [2020-10-13 06:08:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:53,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:53,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:53,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:53,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 358 [2020-10-13 06:08:53,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:53,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 432 [2020-10-13 06:08:53,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:53,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:53,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:08:53,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:08:53,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:53,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:53,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:53,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:53,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:53,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:53,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:53,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:53,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:53,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:53,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:53,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:53,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:53,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:53,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:53,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:53,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:53,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:53,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:53,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:53,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:53,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:53,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:53,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:53,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:53,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:08:53,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:53,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:53,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:53,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:53,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:53,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:53,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:53,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:53,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:53,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:53,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:53,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:53,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:53,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:53,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:53,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:53,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:53,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:53,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:53,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:53,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:53,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:53,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:53,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:54,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:54,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:08:54,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:54,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 06:08:54,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:54,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:54,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:54,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:08:54,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:54,186 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:08:54,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455098625] [2020-10-13 06:08:54,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:54,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:54,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442018984] [2020-10-13 06:08:54,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:54,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:54,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:54,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:54,187 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 5 states. [2020-10-13 06:08:55,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:55,089 INFO L93 Difference]: Finished difference Result 980 states and 1104 transitions. [2020-10-13 06:08:55,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:55,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 340 [2020-10-13 06:08:55,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:55,094 INFO L225 Difference]: With dead ends: 980 [2020-10-13 06:08:55,094 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:08:55,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:55,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:08:55,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:08:55,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:08:55,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:08:55,109 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 340 [2020-10-13 06:08:55,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:55,109 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:08:55,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:55,110 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:08:55,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-10-13 06:08:55,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:55,113 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 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] [2020-10-13 06:08:55,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 06:08:55,114 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:55,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:55,114 INFO L82 PathProgramCache]: Analyzing trace with hash -939868266, now seen corresponding path program 1 times [2020-10-13 06:08:55,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:55,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [660496271] [2020-10-13 06:08:55,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:55,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:55,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:55,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:55,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:59,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:59,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 362 [2020-10-13 06:08:59,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:59,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3785 [2020-10-13 06:08:59,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:59,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:59,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 06:08:59,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:08:59,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:59,548 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 42 [2020-10-13 06:08:59,712 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 41 [2020-10-13 06:08:59,864 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 39 [2020-10-13 06:09:00,020 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 37 [2020-10-13 06:09:00,169 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 35 [2020-10-13 06:09:00,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:00,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:00,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:00,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:00,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:00,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:00,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:00,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:00,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:09:00,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:00,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:00,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:00,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:09:00,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:00,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:00,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:00,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:00,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:00,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:00,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:00,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:09:00,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:00,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:00,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:00,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:00,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:00,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:09:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:09:00,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:00,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:09:00,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:00,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:00,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:09:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:00,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:00,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:00,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:09:00,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:00,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:09:00,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:00,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:00,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:00,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:09:00,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:00,593 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 205 proven. 6 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-13 06:09:00,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [660496271] [2020-10-13 06:09:00,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:00,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:09:00,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189617654] [2020-10-13 06:09:00,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:09:00,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:00,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:09:00,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:09:00,595 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 13 states. [2020-10-13 06:09:01,327 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:09:01,677 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2020-10-13 06:09:01,856 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-10-13 06:09:02,120 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2020-10-13 06:09:02,441 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2020-10-13 06:09:02,698 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2020-10-13 06:09:03,012 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2020-10-13 06:09:03,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:03,348 INFO L93 Difference]: Finished difference Result 956 states and 1072 transitions. [2020-10-13 06:09:03,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:09:03,349 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 342 [2020-10-13 06:09:03,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:03,353 INFO L225 Difference]: With dead ends: 956 [2020-10-13 06:09:03,353 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:09:03,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:09:03,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:09:03,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-13 06:09:03,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:09:03,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 591 transitions. [2020-10-13 06:09:03,367 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 591 transitions. Word has length 342 [2020-10-13 06:09:03,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:03,368 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 591 transitions. [2020-10-13 06:09:03,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:09:03,368 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 591 transitions. [2020-10-13 06:09:03,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-13 06:09:03,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:03,371 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:09:03,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 06:09:03,371 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:03,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:03,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1866528734, now seen corresponding path program 1 times [2020-10-13 06:09:03,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:03,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226321952] [2020-10-13 06:09:03,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:03,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:03,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:03,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:03,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:04,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:04,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-13 06:09:04,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:09:04,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1420 [2020-10-13 06:09:04,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:04,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:04,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:09:04,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:09:04,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:04,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:04,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:04,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:04,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:04,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:04,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:04,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:04,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:04,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:04,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:04,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:04,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:05,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:05,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:05,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:05,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:05,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:09:05,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:05,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:05,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:05,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:05,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:05,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:05,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:05,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:05,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:05,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:05,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:09:05,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:05,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:05,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:05,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:05,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:05,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:05,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:05,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:05,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:05,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:05,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:05,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:05,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:05,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:05,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:05,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:05,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:05,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:05,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:09:05,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:05,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:05,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:05,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:05,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:09:05,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:05,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:05,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:05,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:09:05,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:09:05,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:05,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:05,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:05,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:09:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:05,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:05,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:05,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:09:05,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:05,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:09:05,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:09:05,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:05,263 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 206 proven. 6 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-13 06:09:05,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226321952] [2020-10-13 06:09:05,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:05,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:09:05,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792853048] [2020-10-13 06:09:05,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:09:05,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:05,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:09:05,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:09:05,265 INFO L87 Difference]: Start difference. First operand 537 states and 591 transitions. Second operand 6 states. [2020-10-13 06:09:06,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:06,280 INFO L93 Difference]: Finished difference Result 1083 states and 1222 transitions. [2020-10-13 06:09:06,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:06,280 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 343 [2020-10-13 06:09:06,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:06,284 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 06:09:06,284 INFO L226 Difference]: Without dead ends: 537 [2020-10-13 06:09:06,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:09:06,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-13 06:09:06,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2020-10-13 06:09:06,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:09:06,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 588 transitions. [2020-10-13 06:09:06,299 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 588 transitions. Word has length 343 [2020-10-13 06:09:06,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:06,299 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 588 transitions. [2020-10-13 06:09:06,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:09:06,299 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 588 transitions. [2020-10-13 06:09:06,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-10-13 06:09:06,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:06,302 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2020-10-13 06:09:06,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 06:09:06,302 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:06,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:06,303 INFO L82 PathProgramCache]: Analyzing trace with hash 154596125, now seen corresponding path program 1 times [2020-10-13 06:09:06,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:06,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737193014] [2020-10-13 06:09:06,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:06,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:07,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:07,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 360 [2020-10-13 06:09:07,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:09:07,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1027 [2020-10-13 06:09:07,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:07,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:07,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 06:09:07,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 06:09:07,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:07,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:07,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:07,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:07,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:07,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:07,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:07,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:07,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:07,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:07,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:07,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:07,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:07,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:07,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:07,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:07,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:07,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:09:07,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:07,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:07,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:07,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:07,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:07,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:07,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:07,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:07,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:07,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:07,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:09:07,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:07,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:07,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:07,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:07,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:07,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:07,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:07,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:07,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:07,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:07,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:07,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:07,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:07,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:07,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:07,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:07,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:07,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:07,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:07,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:09:07,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:07,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:07,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:07,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:07,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:07,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:07,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:07,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:09:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:07,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:07,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:07,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:09:07,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:07,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:09:07,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:09:07,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:07,814 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 206 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:09:07,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737193014] [2020-10-13 06:09:07,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:07,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:09:07,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711632752] [2020-10-13 06:09:07,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:09:07,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:07,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:09:07,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:09:07,816 INFO L87 Difference]: Start difference. First operand 537 states and 588 transitions. Second operand 5 states. [2020-10-13 06:09:08,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:08,695 INFO L93 Difference]: Finished difference Result 1085 states and 1217 transitions. [2020-10-13 06:09:08,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:08,696 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 342 [2020-10-13 06:09:08,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:08,699 INFO L225 Difference]: With dead ends: 1085 [2020-10-13 06:09:08,699 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 06:09:08,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:09:08,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 06:09:08,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 06:09:08,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 06:09:08,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 562 transitions. [2020-10-13 06:09:08,708 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 562 transitions. Word has length 342 [2020-10-13 06:09:08,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:08,709 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 562 transitions. [2020-10-13 06:09:08,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:09:08,709 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 562 transitions. [2020-10-13 06:09:08,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-10-13 06:09:08,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:08,711 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 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] [2020-10-13 06:09:08,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 06:09:08,712 INFO L427 AbstractCegarLoop]: === Iteration 32 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:08,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:08,712 INFO L82 PathProgramCache]: Analyzing trace with hash 721907562, now seen corresponding path program 1 times [2020-10-13 06:09:08,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:08,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693528914] [2020-10-13 06:09:08,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:08,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:08,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:09,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:09,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:10,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:10,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 384 [2020-10-13 06:09:10,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:09:10,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1380 [2020-10-13 06:09:10,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:09:10,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:09:10,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:10,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:10,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:10,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:10,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:10,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:10,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:09:10,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:10,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:10,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:10,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:10,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:10,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:10,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:10,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:10,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:09:10,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:10,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:09:10,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:10,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:10,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:10,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:09:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:10,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:10,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:10,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:10,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:10,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:09:10,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:10,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:10,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:10,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:10,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:10,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:09:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:10,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:10,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:10,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:09:10,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:10,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:09:10,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:10,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:10,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:10,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:10,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:10,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:09:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:10,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:10,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:10,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:09:10,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:10,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:09:10,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:10,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:10,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:10,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:09:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:10,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:10,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:10,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:09:10,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:10,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:09:10,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:10,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:10,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:10,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:10,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:10,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:09:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:10,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:10,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:10,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:09:10,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:10,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 06:09:10,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:10,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:09:10,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:10,768 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-13 06:09:10,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693528914] [2020-10-13 06:09:10,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:10,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:09:10,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192520390] [2020-10-13 06:09:10,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:09:10,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:10,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:09:10,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:09:10,770 INFO L87 Difference]: Start difference. First operand 514 states and 562 transitions. Second operand 5 states. [2020-10-13 06:09:11,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:11,348 INFO L93 Difference]: Finished difference Result 897 states and 993 transitions. [2020-10-13 06:09:11,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:11,349 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 364 [2020-10-13 06:09:11,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:11,350 INFO L225 Difference]: With dead ends: 897 [2020-10-13 06:09:11,350 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:09:11,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:09:11,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:09:11,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:09:11,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:09:11,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:09:11,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 364 [2020-10-13 06:09:11,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:11,354 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:09:11,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:09:11,354 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:09:11,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:09:11,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-13 06:09:11,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:09:12,050 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-10-13 06:09:12,189 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 167 [2020-10-13 06:09:12,345 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2020-10-13 06:09:18,681 WARN L193 SmtUtils]: Spent 6.33 s on a formula simplification. DAG size of input: 362 DAG size of output: 274 [2020-10-13 06:09:20,610 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 197 DAG size of output: 165 [2020-10-13 06:09:22,070 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 173 DAG size of output: 128 [2020-10-13 06:09:22,074 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:09:22,075 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-13 06:09:22,075 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:09:22,075 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:09:22,075 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:09:22,075 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,076 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,076 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,076 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,076 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,076 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,076 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:09:22,076 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:09:22,077 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:09:22,077 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:09:22,077 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:09:22,077 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:09:22,077 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:09:22,077 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:09:22,077 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:09:22,077 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:09:22,077 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,077 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,078 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,078 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,078 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,078 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,078 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:09:22,079 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:09:22,079 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:09:22,079 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:09:22,079 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:09:22,079 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:09:22,079 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:09:22,080 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:09:22,080 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:09:22,080 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:09:22,080 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:09:22,080 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 542) no Hoare annotation was computed. [2020-10-13 06:09:22,080 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:09:22,080 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:09:22,080 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:09:22,080 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:09:22,081 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,081 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,081 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,081 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,081 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,081 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:09:22,081 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:09:22,081 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:09:22,081 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:09:22,081 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:09:22,082 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:09:22,082 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:09:22,082 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:09:22,082 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:09:22,082 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,082 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,082 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,083 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,083 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,083 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:09:22,083 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:09:22,083 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:09:22,083 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:09:22,083 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:09:22,083 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:09:22,083 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:09:22,084 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:09:22,084 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:09:22,084 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:09:22,084 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:09:22,084 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:09:22,084 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:09:22,084 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,084 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,084 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,085 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,085 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,085 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:09:22,085 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:09:22,085 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:09:22,085 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:09:22,085 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:09:22,085 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:09:22,085 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:09:22,086 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:09:22,086 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:09:22,086 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,086 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,086 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,086 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,086 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,086 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,087 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:09:22,087 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,087 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:09:22,087 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:09:22,087 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:09:22,087 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:09:22,087 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:09:22,087 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:09:22,087 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:09:22,088 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:09:22,088 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:09:22,088 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:09:22,089 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:09:22,089 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:09:22,089 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:09:22,089 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,089 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,089 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,090 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,090 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,090 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:09:22,090 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:09:22,090 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:09:22,090 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:09:22,090 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:09:22,090 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:09:22,090 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:09:22,091 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:09:22,091 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,091 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,091 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,091 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,091 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,091 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:09:22,091 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:09:22,091 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:09:22,091 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:09:22,092 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:09:22,092 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:09:22,092 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:09:22,092 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:09:22,095 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:09:22,095 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:09:22,097 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse64 (= |old(~a21~0)| 1)) (.cse75 (= |old(~a7~0)| |old(~a17~0)|)) (.cse10 (not (= |calculate_output_#in~input| 3))) (.cse11 (not (= |calculate_output_#in~input| 2))) (.cse22 (not (= |calculate_output_#in~input| 4))) (.cse13 (not (= |calculate_output_#in~input| 1))) (.cse14 (not (= |calculate_output_#in~input| 5))) (.cse15 (not (= |calculate_output_#in~input| 6))) (.cse25 (= |old(~a7~0)| 1)) (.cse74 (= 5 ~a16~0)) (.cse20 (= |old(~a20~0)| 1)) (.cse29 (= |old(~a17~0)| 1)) (.cse76 (= ~a8~0 |old(~a8~0)|)) (.cse2 (= ~a21~0 1)) (.cse3 (= ~a8~0 15)) (.cse5 (= ~a8~0 13)) (.cse6 (= ~a16~0 4)) (.cse12 (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4)))) (.cse72 (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) (.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse27 (= ~a17~0 |old(~a17~0)|)) (.cse4 (= ~a21~0 |old(~a21~0)|)) (.cse1 (= ~a20~0 |old(~a20~0)|)) (.cse7 (= ~a16~0 |old(~a16~0)|)) (.cse32 (not (<= |old(~a7~0)| 0)))) (let ((.cse67 (and .cse32 (not (<= 2 |old(~a7~0)|)))) (.cse40 (not (<= |old(~a21~0)| 0))) (.cse38 (not (< 0 |old(~a7~0)|))) (.cse42 (and .cse0 .cse27 (< 12 ~a8~0) .cse4 .cse1 .cse7 (<= ~a8~0 13))) (.cse44 (not (< 12 |old(~a8~0)|))) (.cse46 (not (< 0 |old(~a20~0)|))) (.cse21 (not (= 6 |old(~a16~0)|))) (.cse33 (not (<= |old(~a17~0)| 0))) (.cse28 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) .cse12 (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) .cse72)) (.cse63 (and .cse0 .cse27 .cse4 .cse1 .cse5 .cse6)) (.cse62 (not (<= |old(~a20~0)| 0))) (.cse53 (<= 1 ~a7~0)) (.cse54 (<= ~a16~0 4)) (.cse55 (<= 4 ~a16~0)) (.cse60 (<= ~a7~0 1)) (.cse35 (not (<= |old(~a7~0)| 1))) (.cse61 (not (<= |old(~a16~0)| 4))) (.cse37 (not (<= |old(~a20~0)| 1))) (.cse47 (not (<= 4 |old(~a16~0)|))) (.cse51 (not (<= 1 |old(~a7~0)|))) (.cse43 (not (<= |old(~a8~0)| 13))) (.cse73 (and .cse0 .cse27 .cse2 .cse1 .cse3 .cse6)) (.cse68 (= 14 ~a8~0)) (.cse31 (not (= 14 |old(~a8~0)|))) (.cse30 (and .cse0 .cse27 .cse2 .cse1 .cse76 .cse6)) (.cse9 (not .cse29)) (.cse65 (= ~a7~0 0)) (.cse17 (not .cse20)) (.cse66 (not (= |old(~a7~0)| 0))) (.cse70 (and .cse0 .cse27 .cse2 .cse1 .cse3 .cse74)) (.cse69 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse16 (not .cse25)) (.cse71 (not (= 5 |old(~a16~0)|))) (.cse23 (not (= 15 |old(~a8~0)|))) (.cse39 (not (< 0 |old(~a17~0)|))) (.cse34 (not (<= 5 |old(~a16~0)|))) (.cse48 (not (<= |old(~a8~0)| 15))) (.cse49 (not (<= |old(~a21~0)| 1))) (.cse41 (not (<= |old(~a16~0)| 5))) (.cse50 (not (<= 15 |old(~a8~0)|))) (.cse52 (not (<= 1 |old(~a21~0)|))) (.cse56 (<= ~a21~0 1)) (.cse57 (<= 1 ~a21~0)) (.cse58 (<= ~a8~0 15)) (.cse59 (<= 15 ~a8~0)) (.cse36 (not (<= |old(~a17~0)| 1))) (.cse45 (and .cse10 .cse11 .cse22 .cse13 .cse14 .cse15)) (.cse8 (not (= |old(~a8~0)| 13))) (.cse77 (not .cse75)) (.cse24 (not .cse64)) (.cse18 (not (= ~a12~0 8))) (.cse19 (not (= 4 |old(~a16~0)|))) (.cse26 (not (= 0 |old(~a17~0)|)))) (and (or (and .cse0 .cse1 (or (and .cse2 .cse3 (not (= ~a20~0 1)) (= ~a17~0 0)) (and .cse4 .cse5 .cse6 (= ~a17~0 1))) .cse7) (and (or .cse8 .cse9 (and .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) .cse16 .cse17 .cse18 .cse19) (or .cse20 .cse21 (and .cse10 .cse11 (not (= |calculate_output_#in~input| |old(~a16~0)|)) .cse22 .cse14 (not (= |calculate_output_#in~input| |old(~a21~0)|))) .cse23 .cse24 .cse18 .cse25 .cse26))) (or (and .cse27 .cse0 .cse1 .cse7 .cse3 (= ~a21~0 ~a20~0)) .cse28 .cse21 .cse17 .cse29 (not (= |old(~a20~0)| |old(~a21~0)|)) .cse23 .cse18 .cse25) (or .cse30 .cse31 .cse32 .cse17 .cse33 .cse24 .cse18 .cse19) (or .cse34 .cse35 .cse36 .cse37 .cse38 .cse39 .cse40 .cse41 .cse42 .cse43 .cse44 .cse45 .cse18 .cse46) (or .cse47 .cse48 .cse49 .cse50 .cse51 .cse52 (and .cse53 .cse27 .cse1 .cse54 .cse55 .cse56 .cse57 .cse58 .cse59 .cse60) .cse61 .cse35 .cse33 .cse18 .cse62) (or .cse8 .cse28 .cse16 .cse63 .cse17 .cse64 .cse18 .cse19 .cse26) (or .cse8 .cse20 .cse29 .cse24 (and .cse0 .cse27 .cse2 .cse1 .cse5 .cse6) .cse18 .cse19 .cse25) (or .cse8 .cse9 .cse21 .cse17 (and .cse27 .cse2 .cse1 .cse7 .cse5 .cse65) .cse24 .cse18 .cse66) (or .cse31 .cse30 .cse32 .cse33 .cse24 .cse18 .cse62 .cse19) (or .cse67 .cse34 (and (not (<= 2 |old(~a20~0)|)) .cse62) .cse48 .cse49 (and .cse0 (< 0 ~a17~0) .cse1 (<= ~a16~0 5) (<= ~a17~0 1) .cse56 (<= 5 ~a16~0) .cse57 .cse58 .cse59) .cse36 .cse39 .cse41 .cse50 .cse52 .cse45 .cse18) (or (and .cse0 .cse27 .cse2 .cse1 .cse68 .cse6) .cse31 .cse69 .cse16 .cse24 .cse18 .cse19 .cse26) (or .cse67 (and .cse0 .cse27 .cse1 .cse54 .cse55 .cse56 .cse57 .cse58 .cse59) .cse48 .cse49 .cse61 .cse33 .cse37 .cse47 .cse28 .cse50 .cse52 .cse18 .cse46) (or .cse70 .cse71 .cse45 .cse23 .cse24 .cse18 .cse25 .cse26) (or (and .cse40 (not (<= 2 |old(~a21~0)|))) .cse35 .cse33 .cse37 .cse38 (not (<= |old(~a16~0)| 6)) (not (< 5 |old(~a16~0)|)) .cse42 .cse43 .cse44 .cse45 .cse18 .cse46) (or .cse9 .cse20 (and .cse10 .cse11 .cse22 .cse14 .cse72 .cse15) .cse73 .cse23 .cse24 .cse18 .cse19 .cse25) (or .cse31 .cse16 .cse17 (and .cse0 .cse27 .cse2 .cse1 .cse68 .cse74) .cse71 .cse24 .cse18 .cse26) (or (not (= |old(~a17~0)| |old(~a21~0)|)) .cse75 .cse28 (and .cse0 (= ~a21~0 ~a17~0) .cse2 .cse1 .cse7 .cse3) .cse21 (not (= 0 |old(~a20~0)|)) .cse23 .cse24 .cse18) (or .cse34 (not (<= 14 |old(~a8~0)|)) .cse49 .cse41 (and .cse53 .cse27 .cse1 .cse7 .cse76 .cse56 .cse57 .cse60) .cse51 .cse52 .cse35 (not (<= |old(~a8~0)| 14)) .cse33 .cse18 .cse62) (or .cse8 .cse9 .cse28 .cse16 .cse63 .cse64 .cse18 .cse62 .cse19) (or .cse49 (not (<= 1 |old(~a17~0)|)) (and .cse53 .cse27 .cse1 .cse54 .cse76 .cse55 .cse56 .cse57 .cse60) .cse35 .cse61 (not (<= 13 |old(~a8~0)|)) .cse36 (not (<= 1 |old(~a20~0)|)) .cse37 .cse47 .cse51 .cse52 .cse43 .cse18) (or .cse69 .cse73 .cse45 .cse23 .cse24 .cse18 .cse19 .cse26) (or .cse31 .cse77 (and .cse27 .cse2 .cse1 .cse68 .cse74 .cse65) (not (= |old(~a7~0)| |old(~a20~0)|)) .cse71 .cse24 .cse18 .cse66) (or .cse9 .cse31 .cse30 .cse32 .cse17 .cse24 .cse18 .cse19) (or .cse8 .cse9 (and .cse27 .cse2 .cse1 .cse5 .cse6 .cse65) .cse17 .cse24 .cse18 .cse66 .cse19) (or .cse70 .cse69 .cse16 .cse71 .cse23 .cse24 .cse18 .cse26) (or .cse39 .cse34 .cse48 .cse32 .cse49 .cse41 .cse50 .cse52 (and .cse0 .cse27 .cse1 .cse7 .cse56 .cse57 .cse58 .cse59) .cse36 .cse45 .cse18) (or .cse8 (and .cse27 .cse2 .cse1 .cse5 .cse6 (= ~a17~0 ~a7~0)) .cse77 .cse24 .cse18 .cse19 .cse26)))) [2020-10-13 06:09:22,097 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:09:22,097 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,097 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,097 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,097 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,098 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:09:22,098 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,098 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,098 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:09:22,098 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:09:22,098 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:09:22,098 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:09:22,098 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:09:22,098 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:09:22,099 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:09:22,099 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:09:22,099 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:09:22,099 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:09:22,099 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:09:22,099 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:09:22,099 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,099 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,099 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,100 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,100 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,100 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:09:22,100 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,100 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:09:22,100 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:09:22,100 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:09:22,100 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:09:22,100 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:09:22,101 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:09:22,101 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:09:22,101 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:09:22,101 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:09:22,101 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:09:22,101 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:09:22,101 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:09:22,101 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:09:22,101 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:09:22,101 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,101 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,101 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,101 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,101 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,102 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:09:22,102 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:09:22,102 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:09:22,102 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:09:22,102 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:09:22,102 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:09:22,102 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:09:22,102 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:09:22,102 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:09:22,102 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:09:22,102 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:09:22,102 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:09:22,102 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (<= 1 ~a17~0) (= ~a12~0 8) (<= ~a7~0 0) (<= ~a21~0 1) (<= ~a20~0 1) (<= ~a17~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (<= ~a8~0 15) (<= 15 ~a8~0)) [2020-10-13 06:09:22,102 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:09:22,103 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:09:22,103 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a21~0)| 1)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) (not (<= 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 1)) (not (= 5 |old(~a16~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (<= ~a21~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (<= ~a8~0 15) (<= 15 ~a8~0)) (not (<= 1 |old(~a20~0)|)) (not (= ~a12~0 8)) (not (<= |old(~a20~0)| 1))) [2020-10-13 06:09:22,103 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:09:22,103 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse16 (= ~a7~0 1)) (.cse23 (= 5 main_~input~0)) (.cse46 (= 6 main_~input~0)) (.cse25 (= main_~input~0 4)) (.cse26 (= 3 main_~input~0)) (.cse47 (= main_~input~0 1)) (.cse27 (= 2 main_~input~0)) (.cse28 (= ~a21~0 1)) (.cse33 (<= ~a7~0 0)) (.cse34 (= ~a17~0 1))) (let ((.cse39 (not .cse34)) (.cse1 (<= 13 ~a8~0)) (.cse36 (<= ~a21~0 0)) (.cse11 (<= ~a8~0 13)) (.cse3 (<= 1 ~a17~0)) (.cse6 (<= ~a17~0 1)) (.cse45 (= ~a21~0 ~a17~0)) (.cse2 (<= 1 ~a20~0)) (.cse4 (<= ~a16~0 4)) (.cse5 (<= 4 ~a16~0)) (.cse44 (or (< 1 ~a7~0) .cse33)) (.cse8 (<= ~a20~0 1)) (.cse13 (<= ~a8~0 15)) (.cse14 (<= 15 ~a8~0)) (.cse29 (= ~a16~0 6)) (.cse41 (= ~a7~0 0)) (.cse20 (= ~a20~0 1)) (.cse17 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse18 (not .cse28)) (.cse35 (or .cse23 .cse46 .cse25 .cse26 .cse47 .cse27)) (.cse30 (= ~a8~0 15)) (.cse31 (not .cse16)) (.cse38 (= 5 ~a16~0)) (.cse22 (= ~a17~0 0)) (.cse32 (= 14 ~a8~0)) (.cse24 (= ~a16~0 main_~input~0)) (.cse37 (= ~a20~0 ~a17~0)) (.cse19 (= ~a8~0 13)) (.cse21 (= ~a16~0 4)) (.cse40 (= ~a17~0 ~a7~0)) (.cse0 (<= 1 ~a7~0)) (.cse42 (<= ~a16~0 5)) (.cse12 (<= ~a17~0 0)) (.cse7 (<= ~a21~0 1)) (.cse9 (<= 1 ~a21~0)) (.cse43 (<= 5 ~a16~0)) (.cse10 (<= ~a7~0 1)) (.cse15 (<= ~a20~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse4 .cse12 .cse5 .cse7 .cse9 .cse13 .cse10 .cse14 .cse15) (not (<= |old(~a21~0)| 1)) (and .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22) (and (or .cse23 .cse24 .cse25 .cse26 (= ~a21~0 main_~input~0) .cse27) .cse28 .cse29 .cse30 .cse31 .cse22) (not (<= 1 |old(~a17~0)|)) (and .cse28 .cse32 .cse33 .cse20 .cse21 .cse34) (and .cse0 (<= ~a16~0 6) .cse1 .cse2 (<= 6 ~a16~0) .cse35 .cse12 .cse8 .cse10 (or (< 1 ~a21~0) .cse36) .cse11) (and .cse37 .cse28 .cse16 .cse30 .cse38 .cse22) (not (<= |old(~a17~0)| 1)) (not (<= 1 |old(~a20~0)|)) (and .cse28 .cse39 .cse19 .cse21 .cse31 (not .cse20)) (and .cse28 .cse32 .cse38 .cse40 (= ~a20~0 ~a7~0) .cse41) (and .cse29 .cse39 .cse17 .cse30 .cse20 (= ~a21~0 ~a20~0) .cse31) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) .cse35 (= ~a16~0 |old(~a16~0)|) .cse7 .cse9 .cse13 .cse14) (not (<= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse42 .cse35 .cse36 .cse6 .cse8 .cse43 .cse10 .cse11) (and .cse3 .cse42 .cse35 (or (< 1 ~a20~0) .cse15) .cse44 .cse7 .cse6 .cse9 .cse43 .cse13 .cse14) (not (= 5 |old(~a16~0)|)) (and .cse28 .cse19 .cse21 .cse40 .cse22) (and .cse37 .cse28 .cse35 .cse30 .cse21 .cse22) (not (= ~a12~0 8)) (and .cse37 .cse28 .cse16 .cse32 .cse21 .cse22) (and (= ~a20~0 0) .cse45 .cse28 .cse29 .cse17 (not .cse40) .cse30) (and .cse45 (not .cse37) .cse30 (or .cse23 .cse46 .cse25 .cse26 (= ~a17~0 main_~input~0) .cse27) .cse21 .cse31 .cse34) (and .cse2 .cse4 .cse17 .cse12 .cse5 .cse44 .cse7 .cse8 .cse9 .cse13 .cse14) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and .cse28 .cse16 .cse32 .cse20 .cse38 .cse22) (and .cse28 .cse29 .cse19 .cse20 .cse41 .cse34) (not (<= |old(~a20~0)| 1)) (and .cse28 .cse19 .cse20 .cse21 .cse41 .cse34) (and .cse28 .cse32 .cse12 .cse33 .cse20 .cse21) (not (<= 15 |old(~a8~0)|)) (and .cse16 .cse17 .cse18 .cse19 .cse21 .cse34 .cse15) (and .cse28 .cse35 .cse30 .cse31 .cse38 .cse22) (and .cse28 .cse32 .cse12 .cse33 .cse21 .cse15) (and (or .cse23 .cse46 .cse24 .cse26 .cse47 .cse27) .cse37 .cse19 .cse21 .cse40 .cse34) (and .cse0 (<= 14 ~a8~0) (<= ~a8~0 14) .cse42 .cse12 .cse7 .cse9 .cse43 .cse10 .cse15)))) [2020-10-13 06:09:22,103 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:09:22,103 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:09:22,104 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse24 (= ~a7~0 1)) (.cse18 (<= ~a7~0 0)) (.cse1 (= ~a21~0 1)) (.cse21 (= ~a17~0 1))) (let ((.cse8 (<= ~a16~0 4)) (.cse10 (<= 4 ~a16~0)) (.cse3 (= ~a17~0 ~a7~0)) (.cse2 (= ~a16~0 6)) (.cse22 (not .cse21)) (.cse26 (= 5 ~a16~0)) (.cse27 (= ~a7~0 0)) (.cse32 (<= 13 ~a8~0)) (.cse28 (<= 1 ~a20~0)) (.cse30 (<= ~a20~0 1)) (.cse35 (<= ~a21~0 0)) (.cse38 (<= ~a8~0 13)) (.cse25 (not .cse1)) (.cse23 (= ~a8~0 13)) (.cse19 (= ~a20~0 1)) (.cse6 (= ~a17~0 0)) (.cse33 (<= 1 ~a17~0)) (.cse29 (or (< 1 ~a7~0) .cse18)) (.cse36 (<= ~a17~0 1)) (.cse13 (<= ~a8~0 15)) (.cse15 (<= 15 ~a8~0)) (.cse0 (= ~a21~0 ~a17~0)) (.cse31 (= ~a20~0 ~a17~0)) (.cse4 (= ~a8~0 15)) (.cse5 (not .cse24)) (.cse17 (= 14 ~a8~0)) (.cse20 (= ~a16~0 4)) (.cse7 (<= 1 ~a7~0)) (.cse34 (<= ~a16~0 5)) (.cse9 (<= ~a17~0 0)) (.cse11 (<= ~a21~0 1)) (.cse12 (<= 1 ~a21~0)) (.cse37 (<= 5 ~a16~0)) (.cse14 (<= ~a7~0 1)) (.cse16 (<= ~a20~0 0))) (or (and (= ~a20~0 0) .cse0 .cse1 .cse2 (not .cse3) .cse4) (and .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a17~0)|)) (and .cse1 .cse17 .cse18 .cse19 .cse20 .cse21) (not (<= |old(~a17~0)| 1)) (not (<= 1 |old(~a20~0)|)) (and .cse1 .cse22 .cse23 .cse20 .cse5 (not .cse19)) (and .cse24 .cse25 .cse23 .cse20 .cse21 .cse16) (and .cse1 .cse17 .cse26 .cse3 (= ~a20~0 ~a7~0) .cse27) (and .cse1 .cse4 .cse5 .cse26 .cse6) (not (<= 1 |old(~a21~0)|)) (and .cse28 .cse8 .cse9 .cse10 .cse29 .cse11 .cse30 .cse12 .cse13 .cse15) (and .cse31 .cse8 .cse10 .cse23 .cse3 .cse21) (not (= 5 |old(~a16~0)|)) (and .cse1 .cse23 .cse20 .cse3 .cse6) (not (= ~a12~0 8)) (and .cse31 .cse1 .cse24 .cse17 .cse20 .cse6) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and .cse7 .cse32 .cse28 .cse33 .cse34 .cse35 .cse30 .cse36 .cse37 .cse14 .cse38) (and .cse1 .cse24 .cse17 .cse19 .cse26 .cse6) (and .cse1 .cse2 .cse23 .cse19 .cse27 .cse21) (and .cse31 .cse1 .cse4 .cse20 .cse6) (and .cse2 .cse22 .cse4 .cse19 (= ~a21~0 ~a20~0) .cse5) (and .cse31 .cse1 .cse4 .cse26 .cse6) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) .cse11 .cse12 .cse26 .cse13 .cse15) (not (<= |old(~a20~0)| 1)) (and .cse1 .cse23 .cse19 .cse20 .cse27 .cse21) (and .cse7 (<= ~a16~0 6) .cse32 .cse28 (<= 6 ~a16~0) .cse9 .cse30 .cse14 (or (< 1 ~a21~0) .cse35) .cse38) (and .cse1 .cse17 .cse9 .cse18 .cse19 .cse20) (and .cse24 .cse25 .cse23 .cse19 .cse20 .cse6) (not (<= 15 |old(~a8~0)|)) (and .cse33 .cse34 (or (< 1 ~a20~0) .cse16) .cse29 .cse11 .cse36 .cse12 .cse37 .cse13 .cse15) (and .cse0 (not .cse31) .cse4 .cse20 .cse5 .cse21) (and .cse1 .cse17 .cse9 .cse18 .cse20 .cse16) (and .cse7 (<= 14 ~a8~0) (<= ~a8~0 14) .cse34 .cse9 .cse11 .cse12 .cse37 .cse14 .cse16)))) [2020-10-13 06:09:22,104 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:09:22,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:09:22 BoogieIcfgContainer [2020-10-13 06:09:22,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:09:22,144 INFO L168 Benchmark]: Toolchain (without parser) took 169097.55 ms. Allocated memory was 138.9 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 100.0 MB in the beginning and 825.5 MB in the end (delta: -725.5 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2020-10-13 06:09:22,145 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:09:22,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.08 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 99.8 MB in the beginning and 160.9 MB in the end (delta: -61.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2020-10-13 06:09:22,146 INFO L168 Benchmark]: Boogie Preprocessor took 109.54 ms. Allocated memory is still 201.3 MB. Free memory was 160.9 MB in the beginning and 156.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-13 06:09:22,146 INFO L168 Benchmark]: RCFGBuilder took 1402.63 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 156.1 MB in the beginning and 169.8 MB in the end (delta: -13.6 MB). Peak memory consumption was 77.0 MB. Max. memory is 7.1 GB. [2020-10-13 06:09:22,147 INFO L168 Benchmark]: TraceAbstraction took 166809.15 ms. Allocated memory was 233.8 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 169.8 MB in the beginning and 825.5 MB in the end (delta: -655.7 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2020-10-13 06:09:22,148 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.08 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 99.8 MB in the beginning and 160.9 MB in the end (delta: -61.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.54 ms. Allocated memory is still 201.3 MB. Free memory was 160.9 MB in the beginning and 156.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1402.63 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 156.1 MB in the beginning and 169.8 MB in the end (delta: -13.6 MB). Peak memory consumption was 77.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 166809.15 ms. Allocated memory was 233.8 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 169.8 MB in the beginning and 825.5 MB in the end (delta: -655.7 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 542]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((a20 == 0 && a21 == a17) && a21 == 1) && a16 == 6) && !(a17 == a7)) && a8 == 15) || ((((a21 == 1 && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 0)) || (((((((((1 <= a7 && a16 <= 4) && a17 <= 0) && 4 <= a16) && a21 <= 1) && 1 <= a21) && a8 <= 15) && a7 <= 1) && 15 <= a8) && a20 <= 0)) || !(\old(a21) <= 1)) || !(1 <= \old(a17))) || (((((a21 == 1 && 14 == a8) && a7 <= 0) && a20 == 1) && a16 == 4) && a17 == 1)) || !(\old(a17) <= 1)) || !(1 <= \old(a20))) || (((((a21 == 1 && !(a17 == 1)) && a8 == 13) && a16 == 4) && !(a7 == 1)) && !(a20 == 1))) || (((((a7 == 1 && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == 1) && a20 <= 0)) || (((((a21 == 1 && 14 == a8) && 5 == a16) && a17 == a7) && a20 == a7) && a7 == 0)) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && a17 == 0)) || !(1 <= \old(a21))) || (((((((((1 <= a20 && a16 <= 4) && a17 <= 0) && 4 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a20 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || (((((a20 == a17 && a16 <= 4) && 4 <= a16) && a8 == 13) && a17 == a7) && a17 == 1)) || !(5 == \old(a16))) || ((((a21 == 1 && a8 == 13) && a16 == 4) && a17 == a7) && a17 == 0)) || !(a12 == 8)) || (((((a20 == a17 && a21 == 1) && a7 == 1) && 14 == a8) && a16 == 4) && a17 == 0)) || !(\old(a8) <= 15)) || !(\old(a7) <= 0)) || ((((((((((1 <= a7 && 13 <= a8) && 1 <= a20) && 1 <= a17) && a16 <= 5) && a21 <= 0) && a20 <= 1) && a17 <= 1) && 5 <= a16) && a7 <= 1) && a8 <= 13)) || (((((a21 == 1 && a7 == 1) && 14 == a8) && a20 == 1) && 5 == a16) && a17 == 0)) || (((((a21 == 1 && a16 == 6) && a8 == 13) && a20 == 1) && a7 == 0) && a17 == 1)) || ((((a20 == a17 && a21 == 1) && a8 == 15) && a16 == 4) && a17 == 0)) || (((((a16 == 6 && !(a17 == 1)) && a8 == 15) && a20 == 1) && a21 == a20) && !(a7 == 1))) || ((((a20 == a17 && a21 == 1) && a8 == 15) && 5 == a16) && a17 == 0)) || ((((((a7 == \old(a7) && a17 == \old(a17)) && a21 <= 1) && 1 <= a21) && 5 == a16) && a8 <= 15) && 15 <= a8)) || !(\old(a20) <= 1)) || (((((a21 == 1 && a8 == 13) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1)) || (((((((((1 <= a7 && a16 <= 6) && 13 <= a8) && 1 <= a20) && 6 <= a16) && a17 <= 0) && a20 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0)) && a8 <= 13)) || (((((a21 == 1 && 14 == a8) && a17 <= 0) && a7 <= 0) && a20 == 1) && a16 == 4)) || (((((a7 == 1 && !(a21 == 1)) && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 0)) || !(15 <= \old(a8))) || (((((((((1 <= a17 && a16 <= 5) && (1 < a20 || a20 <= 0)) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a17 <= 1) && 1 <= a21) && 5 <= a16) && a8 <= 15) && 15 <= a8)) || (((((a21 == a17 && !(a20 == a17)) && a8 == 15) && a16 == 4) && !(a7 == 1)) && a17 == 1)) || (((((a21 == 1 && 14 == a8) && a17 <= 0) && a7 <= 0) && a16 == 4) && a20 <= 0)) || (((((((((1 <= a7 && 14 <= a8) && a8 <= 14) && a16 <= 5) && a17 <= 0) && a21 <= 1) && 1 <= a21) && 5 <= a16) && a7 <= 1) && a20 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 155.9s, OverallIterations: 32, TraceHistogramMax: 7, AutomataDifference: 64.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 825 SDtfs, 9452 SDslu, 1222 SDs, 0 SdLazy, 23597 SolverSat, 1288 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 806 GetRequests, 362 SyntacticMatches, 28 SemanticMatches, 416 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 44.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=608occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 32 MinimizatonAttempts, 232 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 214 PreInvPairs, 270 NumberOfFragments, 3928 HoareAnnotationTreeSize, 214 FomulaSimplifications, 1457 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3666 FormulaSimplificationTreeSizeReductionInter, 9.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 84.0s InterpolantComputationTime, 8312 NumberOfCodeBlocks, 8312 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 8280 ConstructedInterpolants, 0 QuantifiedInterpolants, 22018628 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 32 InterpolantComputations, 1 PerfectInterpolantSequences, 8321/8434 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...