/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:34:20,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:34:20,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:34:20,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:34:20,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:34:20,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:34:20,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:34:20,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:34:20,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:34:20,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:34:20,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:34:20,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:34:20,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:34:20,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:34:20,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:34:20,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:34:20,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:34:20,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:34:20,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:34:20,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:34:20,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:34:20,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:34:20,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:34:20,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:34:20,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:34:20,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:34:20,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:34:20,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:34:20,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:34:20,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:34:20,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:34:20,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:34:20,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:34:20,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:34:20,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:34:20,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:34:20,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:34:20,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:34:20,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:34:20,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:34:20,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:34:20,388 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 [2020-10-12 14:34:20,424 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:34:20,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:34:20,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:34:20,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:34:20,426 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:34:20,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:34:20,426 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:34:20,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:34:20,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:34:20,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:34:20,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:34:20,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:34:20,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:34:20,428 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:34:20,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:34:20,428 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:34:20,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:34:20,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:34:20,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:34:20,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:34:20,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:34:20,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:34:20,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:34:20,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:34:20,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:34:20,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:34:20,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:34:20,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:34:20,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:34:20,431 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 14:34:20,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:34:20,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:34:20,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:34:20,799 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:34:20,800 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:34:20,801 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label49.c [2020-10-12 14:34:20,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2d63282f/14b2c31917744aadb2781749f88ef20e/FLAG60fa0fb3b [2020-10-12 14:34:21,530 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:34:21,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label49.c [2020-10-12 14:34:21,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2d63282f/14b2c31917744aadb2781749f88ef20e/FLAG60fa0fb3b [2020-10-12 14:34:21,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2d63282f/14b2c31917744aadb2781749f88ef20e [2020-10-12 14:34:21,659 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:34:21,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:34:21,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:34:21,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:34:21,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:34:21,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:34:21" (1/1) ... [2020-10-12 14:34:21,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:21, skipping insertion in model container [2020-10-12 14:34:21,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:34:21" (1/1) ... [2020-10-12 14:34:21,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:34:21,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:34:22,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:34:22,767 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:34:22,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:34:23,016 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:34:23,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:23 WrapperNode [2020-10-12 14:34:23,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:34:23,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:34:23,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:34:23,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:34:23,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:23" (1/1) ... [2020-10-12 14:34:23,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:23" (1/1) ... [2020-10-12 14:34:23,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:23" (1/1) ... [2020-10-12 14:34:23,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:23" (1/1) ... [2020-10-12 14:34:23,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:23" (1/1) ... [2020-10-12 14:34:23,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:23" (1/1) ... [2020-10-12 14:34:23,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:23" (1/1) ... [2020-10-12 14:34:23,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:34:23,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:34:23,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:34:23,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:34:23,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:23" (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 [2020-10-12 14:34:23,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:34:23,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:34:23,285 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:34:23,285 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:34:23,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:34:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:34:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:34:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:34:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:34:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:34:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:34:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:34:23,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:34:25,523 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:34:25,523 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:34:25,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:34:25 BoogieIcfgContainer [2020-10-12 14:34:25,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:34:25,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:34:25,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:34:25,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:34:25,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:34:21" (1/3) ... [2020-10-12 14:34:25,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bfd60bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:34:25, skipping insertion in model container [2020-10-12 14:34:25,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:34:23" (2/3) ... [2020-10-12 14:34:25,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bfd60bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:34:25, skipping insertion in model container [2020-10-12 14:34:25,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:34:25" (3/3) ... [2020-10-12 14:34:25,539 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label49.c [2020-10-12 14:34:25,550 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:34:25,559 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:34:25,574 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:34:25,601 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:34:25,601 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:34:25,601 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:34:25,601 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:34:25,601 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:34:25,602 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:34:25,602 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:34:25,602 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:34:25,627 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-12 14:34:25,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-12 14:34:25,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:25,638 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] [2020-10-12 14:34:25,639 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:25,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:25,645 INFO L82 PathProgramCache]: Analyzing trace with hash -971896627, now seen corresponding path program 1 times [2020-10-12 14:34:25,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:25,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636387875] [2020-10-12 14:34:25,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:25,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:26,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:26,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:34:26,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:26,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 547 [2020-10-12 14:34:26,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:26,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:34:26,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:34:26,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 14:34:26,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:34:26,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:26,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:26,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:26,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:26,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:26,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:34:26,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:26,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:26,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:26,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:34:26,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:26,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:34:26,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636387875] [2020-10-12 14:34:26,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:34:26,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:34:26,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466782667] [2020-10-12 14:34:26,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:34:26,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:34:26,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:34:26,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:34:26,597 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-12 14:34:30,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:34:30,008 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-12 14:34:30,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:34:30,010 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2020-10-12 14:34:30,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:34:30,033 INFO L225 Difference]: With dead ends: 1169 [2020-10-12 14:34:30,033 INFO L226 Difference]: Without dead ends: 696 [2020-10-12 14:34:30,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:34:30,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-12 14:34:30,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-12 14:34:30,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-12 14:34:30,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1077 transitions. [2020-10-12 14:34:30,156 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1077 transitions. Word has length 66 [2020-10-12 14:34:30,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:34:30,159 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1077 transitions. [2020-10-12 14:34:30,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:34:30,159 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1077 transitions. [2020-10-12 14:34:30,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-12 14:34:30,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:30,181 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:34:30,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:34:30,181 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:30,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:30,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1120992661, now seen corresponding path program 1 times [2020-10-12 14:34:30,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:30,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111758099] [2020-10-12 14:34:30,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:30,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:30,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:30,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:31,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:31,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 14:34:31,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:34:31,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1128 [2020-10-12 14:34:31,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:34:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:34:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 14:34:31,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:34:31,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:31,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:31,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:31,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:31,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:31,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:34:31,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:34:31,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:31,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:34:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:31,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:31,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:31,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 14:34:31,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:31,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-12 14:34:31,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:31,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:31,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:31,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 14:34:31,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:31,706 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:34:31,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111758099] [2020-10-12 14:34:31,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:34:31,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 14:34:31,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607613071] [2020-10-12 14:34:31,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:34:31,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:34:31,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:34:31,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:34:31,710 INFO L87 Difference]: Start difference. First operand 689 states and 1077 transitions. Second operand 8 states. [2020-10-12 14:34:35,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:34:35,507 INFO L93 Difference]: Finished difference Result 1739 states and 2661 transitions. [2020-10-12 14:34:35,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:34:35,508 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2020-10-12 14:34:35,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:34:35,517 INFO L225 Difference]: With dead ends: 1739 [2020-10-12 14:34:35,518 INFO L226 Difference]: Without dead ends: 1056 [2020-10-12 14:34:35,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:34:35,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2020-10-12 14:34:35,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1039. [2020-10-12 14:34:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2020-10-12 14:34:35,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1423 transitions. [2020-10-12 14:34:35,593 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1423 transitions. Word has length 141 [2020-10-12 14:34:35,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:34:35,594 INFO L479 AbstractCegarLoop]: Abstraction has 1039 states and 1423 transitions. [2020-10-12 14:34:35,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:34:35,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1423 transitions. [2020-10-12 14:34:35,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-12 14:34:35,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:35,605 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:34:35,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:34:35,605 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:35,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:35,606 INFO L82 PathProgramCache]: Analyzing trace with hash 558598432, now seen corresponding path program 1 times [2020-10-12 14:34:35,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:35,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2142119180] [2020-10-12 14:34:35,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:35,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:35,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:36,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:36,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:36,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-12 14:34:36,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:34:36,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1075 [2020-10-12 14:34:36,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:36,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:34:36,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:34:36,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 14:34:36,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:36,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:36,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:36,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:36,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:36,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:36,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:34:36,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:34:36,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:36,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:34:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:36,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:36,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:36,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:34:36,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:36,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-12 14:34:36,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:36,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:34:36,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:37,006 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:34:37,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2142119180] [2020-10-12 14:34:37,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:34:37,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:34:37,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70189432] [2020-10-12 14:34:37,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:34:37,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:34:37,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:34:37,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:34:37,009 INFO L87 Difference]: Start difference. First operand 1039 states and 1423 transitions. Second operand 7 states. [2020-10-12 14:34:40,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:34:40,945 INFO L93 Difference]: Finished difference Result 3171 states and 4418 transitions. [2020-10-12 14:34:40,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:34:40,946 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-10-12 14:34:40,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:34:40,962 INFO L225 Difference]: With dead ends: 3171 [2020-10-12 14:34:40,962 INFO L226 Difference]: Without dead ends: 2138 [2020-10-12 14:34:40,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:34:40,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2020-10-12 14:34:41,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2089. [2020-10-12 14:34:41,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-10-12 14:34:41,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2620 transitions. [2020-10-12 14:34:41,048 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2620 transitions. Word has length 142 [2020-10-12 14:34:41,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:34:41,049 INFO L479 AbstractCegarLoop]: Abstraction has 2089 states and 2620 transitions. [2020-10-12 14:34:41,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:34:41,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2620 transitions. [2020-10-12 14:34:41,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-12 14:34:41,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:41,060 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:34:41,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:34:41,061 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:41,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:41,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1596981648, now seen corresponding path program 1 times [2020-10-12 14:34:41,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:41,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802175349] [2020-10-12 14:34:41,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:41,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:41,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:41,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:41,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:42,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:43,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:44,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:45,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:45,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-12 14:34:45,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 14:34:45,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4652 [2020-10-12 14:34:45,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:45,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 14:34:45,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:34:45,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 235 [2020-10-12 14:34:45,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-12 14:34:45,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:45,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:45,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:45,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:45,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:45,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:34:45,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:45,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:34:45,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:45,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:34:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:45,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:46,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:46,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:46,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:34:46,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:34:46,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-12 14:34:46,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:46,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:46,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:46,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:34:46,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:46,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:34:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:46,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:46,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:46,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:46,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:34:46,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:34:46,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-12 14:34:46,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:46,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:34:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:46,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 14:34:46,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:34:46,895 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-12 14:34:46,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802175349] [2020-10-12 14:34:46,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:34:46,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:34:46,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227797361] [2020-10-12 14:34:46,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 14:34:46,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:34:46,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 14:34:46,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:34:46,898 INFO L87 Difference]: Start difference. First operand 2089 states and 2620 transitions. Second operand 11 states. [2020-10-12 14:34:53,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:34:53,539 INFO L93 Difference]: Finished difference Result 5318 states and 6829 transitions. [2020-10-12 14:34:53,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:34:53,540 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 229 [2020-10-12 14:34:53,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:34:53,561 INFO L225 Difference]: With dead ends: 5318 [2020-10-12 14:34:53,561 INFO L226 Difference]: Without dead ends: 3235 [2020-10-12 14:34:53,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2020-10-12 14:34:53,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3235 states. [2020-10-12 14:34:53,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3235 to 2800. [2020-10-12 14:34:53,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2800 states. [2020-10-12 14:34:53,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2800 states to 2800 states and 3599 transitions. [2020-10-12 14:34:53,663 INFO L78 Accepts]: Start accepts. Automaton has 2800 states and 3599 transitions. Word has length 229 [2020-10-12 14:34:53,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:34:53,664 INFO L479 AbstractCegarLoop]: Abstraction has 2800 states and 3599 transitions. [2020-10-12 14:34:53,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 14:34:53,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2800 states and 3599 transitions. [2020-10-12 14:34:53,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2020-10-12 14:34:53,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:34:53,678 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:34:53,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:34:53,678 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:34:53,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:34:53,679 INFO L82 PathProgramCache]: Analyzing trace with hash -722370686, now seen corresponding path program 1 times [2020-10-12 14:34:53,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:34:53,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179269341] [2020-10-12 14:34:53,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:34:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:53,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:53,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:54,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:55,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:58,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:58,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 527 [2020-10-12 14:34:58,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:34:58,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 14:34:58,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:58,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:34:58,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:34:58,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:34:58,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:34:58,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:34:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:58,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:58,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:58,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:34:58,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:58,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:34:58,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:58,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:34:58,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:34:58,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:34:58,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:34:58,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:34:58,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:58,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:59,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:59,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:34:59,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:59,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-12 14:34:59,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:59,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:34:59,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:34:59,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 14:34:59,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 14:34:59,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 14:34:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:59,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:59,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:59,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:34:59,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:59,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 14:34:59,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 14:34:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:59,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:59,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-12 14:34:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:59,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:59,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:59,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:34:59,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:59,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:34:59,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:59,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:59,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:34:59,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:59,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:34:59,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-12 14:34:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:34:59,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:34:59,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:34:59,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 14:34:59,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:34:59,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:34:59,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:34:59,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:34:59,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-12 14:34:59,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:34:59,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:34:59,702 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 236 proven. 285 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2020-10-12 14:34:59,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179269341] [2020-10-12 14:34:59,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:34:59,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:34:59,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095978774] [2020-10-12 14:34:59,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:34:59,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:34:59,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:34:59,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:34:59,705 INFO L87 Difference]: Start difference. First operand 2800 states and 3599 transitions. Second operand 7 states. [2020-10-12 14:35:03,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:03,487 INFO L93 Difference]: Finished difference Result 6335 states and 8072 transitions. [2020-10-12 14:35:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:35:03,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 511 [2020-10-12 14:35:03,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:03,509 INFO L225 Difference]: With dead ends: 6335 [2020-10-12 14:35:03,509 INFO L226 Difference]: Without dead ends: 3541 [2020-10-12 14:35:03,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:35:03,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3541 states. [2020-10-12 14:35:03,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3541 to 3502. [2020-10-12 14:35:03,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3502 states. [2020-10-12 14:35:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3502 states to 3502 states and 4372 transitions. [2020-10-12 14:35:03,609 INFO L78 Accepts]: Start accepts. Automaton has 3502 states and 4372 transitions. Word has length 511 [2020-10-12 14:35:03,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:03,610 INFO L479 AbstractCegarLoop]: Abstraction has 3502 states and 4372 transitions. [2020-10-12 14:35:03,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:35:03,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states and 4372 transitions. [2020-10-12 14:35:03,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2020-10-12 14:35:03,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:03,631 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:35:03,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:35:03,632 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:03,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:03,632 INFO L82 PathProgramCache]: Analyzing trace with hash -675904294, now seen corresponding path program 1 times [2020-10-12 14:35:03,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:03,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180288506] [2020-10-12 14:35:03,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:03,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:03,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:03,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:05,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:05,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:06,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:08,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:08,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 620 [2020-10-12 14:35:08,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:35:08,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-12 14:35:08,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:08,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:35:08,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-12 14:35:08,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-12 14:35:08,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:08,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:35:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:08,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:08,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:08,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:35:08,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:08,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:35:08,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:08,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:08,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:08,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:08,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:08,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:35:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:08,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:08,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:08,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:35:08,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:08,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 14:35:08,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:08,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:35:08,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:08,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 14:35:08,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:35:08,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:35:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:08,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:09,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:09,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:09,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:35:09,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:35:09,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-12 14:35:09,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 14:35:09,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:09,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 14:35:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:09,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:09,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:09,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:35:09,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:09,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-12 14:35:09,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:09,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 14:35:09,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:09,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2020-10-12 14:35:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:09,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:09,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:09,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:35:09,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:09,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 14:35:09,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:09,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:09,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:35:09,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:09,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:09,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2020-10-12 14:35:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:09,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:09,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:09,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 14:35:09,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:09,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:35:09,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:09,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:09,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-12 14:35:09,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:09,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1276 backedges. 582 proven. 408 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2020-10-12 14:35:10,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180288506] [2020-10-12 14:35:10,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:35:10,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:35:10,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128846626] [2020-10-12 14:35:10,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:35:10,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:35:10,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:35:10,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:35:10,251 INFO L87 Difference]: Start difference. First operand 3502 states and 4372 transitions. Second operand 10 states. [2020-10-12 14:35:17,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:17,268 INFO L93 Difference]: Finished difference Result 7745 states and 9817 transitions. [2020-10-12 14:35:17,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 14:35:17,269 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 602 [2020-10-12 14:35:17,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:17,290 INFO L225 Difference]: With dead ends: 7745 [2020-10-12 14:35:17,291 INFO L226 Difference]: Without dead ends: 4528 [2020-10-12 14:35:17,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-12 14:35:17,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4528 states. [2020-10-12 14:35:17,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4528 to 4512. [2020-10-12 14:35:17,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4512 states. [2020-10-12 14:35:17,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4512 states to 4512 states and 4846 transitions. [2020-10-12 14:35:17,452 INFO L78 Accepts]: Start accepts. Automaton has 4512 states and 4846 transitions. Word has length 602 [2020-10-12 14:35:17,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:17,453 INFO L479 AbstractCegarLoop]: Abstraction has 4512 states and 4846 transitions. [2020-10-12 14:35:17,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:35:17,453 INFO L276 IsEmpty]: Start isEmpty. Operand 4512 states and 4846 transitions. [2020-10-12 14:35:17,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 875 [2020-10-12 14:35:17,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:17,471 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:35:17,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:35:17,472 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:17,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:17,473 INFO L82 PathProgramCache]: Analyzing trace with hash 95898354, now seen corresponding path program 1 times [2020-10-12 14:35:17,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:17,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379023183] [2020-10-12 14:35:17,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:17,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:17,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:18,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:21,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:22,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:22,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:22,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 892 [2020-10-12 14:35:22,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:35:22,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5106 [2020-10-12 14:35:22,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:35:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 497 [2020-10-12 14:35:22,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 394 [2020-10-12 14:35:22,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:35:22,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:35:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:22,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:22,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:22,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:35:22,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:22,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:35:22,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:22,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:22,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:22,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:22,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:22,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:35:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:22,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:22,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:22,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:35:22,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:22,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 14:35:22,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:22,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:22,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:22,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:22,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:23,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:35:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:23,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:23,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:23,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:35:23,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:23,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:35:23,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:23,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:23,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-12 14:35:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:23,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:23,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:23,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:35:23,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:23,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-12 14:35:23,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:23,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:35:23,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 14:35:23,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:35:23,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-12 14:35:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:23,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:23,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:23,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:23,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:35:23,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:35:23,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-12 14:35:23,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:23,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:23,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 14:35:23,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:35:23,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:35:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:23,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:23,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:23,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:23,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:35:23,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:35:23,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-12 14:35:23,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-12 14:35:23,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:24,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1553 backedges. 1012 proven. 177 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-12 14:35:24,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379023183] [2020-10-12 14:35:24,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:35:24,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:35:24,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258719476] [2020-10-12 14:35:24,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:35:24,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:35:24,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:35:24,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:35:24,561 INFO L87 Difference]: Start difference. First operand 4512 states and 4846 transitions. Second operand 8 states. [2020-10-12 14:35:27,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:27,216 INFO L93 Difference]: Finished difference Result 8710 states and 9690 transitions. [2020-10-12 14:35:27,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:35:27,217 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 874 [2020-10-12 14:35:27,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:27,241 INFO L225 Difference]: With dead ends: 8710 [2020-10-12 14:35:27,241 INFO L226 Difference]: Without dead ends: 5572 [2020-10-12 14:35:27,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:35:27,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5572 states. [2020-10-12 14:35:27,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5572 to 5201. [2020-10-12 14:35:27,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5201 states. [2020-10-12 14:35:27,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 5731 transitions. [2020-10-12 14:35:27,405 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 5731 transitions. Word has length 874 [2020-10-12 14:35:27,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:27,407 INFO L479 AbstractCegarLoop]: Abstraction has 5201 states and 5731 transitions. [2020-10-12 14:35:27,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:35:27,408 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 5731 transitions. [2020-10-12 14:35:27,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 924 [2020-10-12 14:35:27,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:27,429 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:35:27,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:35:27,430 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:27,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:27,430 INFO L82 PathProgramCache]: Analyzing trace with hash 871048993, now seen corresponding path program 1 times [2020-10-12 14:35:27,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:27,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284358606] [2020-10-12 14:35:27,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:27,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:27,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:28,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:32,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:32,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 941 [2020-10-12 14:35:32,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:35:32,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-12 14:35:32,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 380 [2020-10-12 14:35:32,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 14:35:32,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:32,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:35:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:32,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:32,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:32,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:35:32,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:32,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:35:32,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:32,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:32,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:32,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:32,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:32,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:35:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:32,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:32,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:32,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:35:32,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:32,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:35:32,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:32,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:32,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:32,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:32,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:32,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:35:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:32,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:32,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:32,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:35:32,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:32,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-12 14:35:32,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:32,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:35:32,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:32,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 14:35:32,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:32,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-12 14:35:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:33,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:33,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:33,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:35:33,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:33,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-12 14:35:33,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:35:33,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:33,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-12 14:35:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:33,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:33,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:33,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:35:33,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:33,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-12 14:35:33,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-12 14:35:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:33,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:33,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 764 [2020-10-12 14:35:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:33,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:33,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:33,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 14:35:33,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:33,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-12 14:35:33,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:33,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:33,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-12 14:35:33,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:33,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:33,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1541 backedges. 540 proven. 212 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2020-10-12 14:35:33,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284358606] [2020-10-12 14:35:33,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:35:33,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:35:33,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158612467] [2020-10-12 14:35:33,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:35:33,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:35:33,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:35:33,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:35:33,905 INFO L87 Difference]: Start difference. First operand 5201 states and 5731 transitions. Second operand 7 states. [2020-10-12 14:35:37,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:37,083 INFO L93 Difference]: Finished difference Result 11454 states and 12784 transitions. [2020-10-12 14:35:37,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:35:37,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 923 [2020-10-12 14:35:37,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:37,116 INFO L225 Difference]: With dead ends: 11454 [2020-10-12 14:35:37,116 INFO L226 Difference]: Without dead ends: 6935 [2020-10-12 14:35:37,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:35:37,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2020-10-12 14:35:37,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6572. [2020-10-12 14:35:37,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6572 states. [2020-10-12 14:35:37,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6572 states to 6572 states and 7155 transitions. [2020-10-12 14:35:37,273 INFO L78 Accepts]: Start accepts. Automaton has 6572 states and 7155 transitions. Word has length 923 [2020-10-12 14:35:37,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:37,275 INFO L479 AbstractCegarLoop]: Abstraction has 6572 states and 7155 transitions. [2020-10-12 14:35:37,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:35:37,275 INFO L276 IsEmpty]: Start isEmpty. Operand 6572 states and 7155 transitions. [2020-10-12 14:35:37,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 987 [2020-10-12 14:35:37,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:37,297 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:35:37,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:35:37,298 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:37,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:37,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1247367544, now seen corresponding path program 1 times [2020-10-12 14:35:37,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:37,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808203782] [2020-10-12 14:35:37,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:37,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:37,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:38,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:41,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:41,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:42,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:42,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:42,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1004 [2020-10-12 14:35:42,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:35:42,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-12 14:35:42,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:42,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:42,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 835 [2020-10-12 14:35:42,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 14:35:42,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:42,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:35:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:42,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:42,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:42,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:35:42,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:42,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:35:42,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:42,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:42,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:42,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:42,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:42,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:35:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:42,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:42,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:42,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:35:42,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:42,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:35:42,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:42,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:42,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:42,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:42,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:42,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:35:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:42,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:42,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:42,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-12 14:35:42,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:42,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:35:42,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:42,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:42,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:42,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:42,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:42,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-12 14:35:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:42,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:42,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:42,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:35:42,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:42,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:35:42,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:43,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:43,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:43,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:43,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:43,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-12 14:35:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:43,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:43,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:43,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:35:43,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:43,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-12 14:35:43,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:43,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:35:43,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:43,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:35:43,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:43,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 827 [2020-10-12 14:35:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:43,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:43,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:43,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 14:35:43,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:43,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-12 14:35:43,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:43,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:43,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:43,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-12 14:35:43,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:43,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1696 backedges. 702 proven. 2 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2020-10-12 14:35:43,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808203782] [2020-10-12 14:35:43,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:35:43,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:35:43,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631706270] [2020-10-12 14:35:43,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:35:43,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:35:43,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:35:43,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:35:43,881 INFO L87 Difference]: Start difference. First operand 6572 states and 7155 transitions. Second operand 8 states. [2020-10-12 14:35:47,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:47,705 INFO L93 Difference]: Finished difference Result 14846 states and 16562 transitions. [2020-10-12 14:35:47,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:35:47,706 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 986 [2020-10-12 14:35:47,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:47,734 INFO L225 Difference]: With dead ends: 14846 [2020-10-12 14:35:47,735 INFO L226 Difference]: Without dead ends: 9985 [2020-10-12 14:35:47,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-12 14:35:47,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9985 states. [2020-10-12 14:35:47,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9985 to 9977. [2020-10-12 14:35:47,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9977 states. [2020-10-12 14:35:47,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9977 states to 9977 states and 10965 transitions. [2020-10-12 14:35:47,945 INFO L78 Accepts]: Start accepts. Automaton has 9977 states and 10965 transitions. Word has length 986 [2020-10-12 14:35:47,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:47,946 INFO L479 AbstractCegarLoop]: Abstraction has 9977 states and 10965 transitions. [2020-10-12 14:35:47,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:35:47,947 INFO L276 IsEmpty]: Start isEmpty. Operand 9977 states and 10965 transitions. [2020-10-12 14:35:47,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1323 [2020-10-12 14:35:47,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:47,994 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:35:47,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:35:47,995 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:47,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:47,996 INFO L82 PathProgramCache]: Analyzing trace with hash -922348740, now seen corresponding path program 1 times [2020-10-12 14:35:47,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:47,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933211494] [2020-10-12 14:35:47,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:48,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:48,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:48,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:48,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:51,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:53,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:53,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1346 [2020-10-12 14:35:53,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:35:53,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 14:35:53,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:53,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:35:53,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:35:53,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-12 14:35:53,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:53,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:35:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:53,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:53,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:53,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:35:53,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:53,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:35:53,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:53,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:35:53,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:53,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:35:53,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:53,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:35:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:53,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:53,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:53,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:53,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:35:53,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:35:53,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-10-12 14:35:53,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:53,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:53,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:53,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-12 14:35:53,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:53,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:35:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:53,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:54,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:54,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:35:54,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:54,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-12 14:35:54,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:35:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:35:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:35:54,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:54,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-12 14:35:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:54,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:54,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:54,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:35:54,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:54,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:35:54,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 14:35:54,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:54,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:54,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-12 14:35:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:54,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:54,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:54,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:35:54,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:54,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:35:54,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:54,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 14:35:54,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:54,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:54,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-12 14:35:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:54,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:54,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:54,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:35:54,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:54,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:35:54,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:35:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:54,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:54,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-12 14:35:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:54,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:54,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:54,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:35:54,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:54,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:35:54,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:35:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:54,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:54,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-12 14:35:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:54,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:54,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:54,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:35:54,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:54,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-12 14:35:54,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:54,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:54,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:35:54,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:54,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:54,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:35:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:54,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:35:54,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:35:54,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:35:54,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:35:54,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:35:54,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:35:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:35:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:35:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:35:54,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:35:56,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 674 proven. 1378 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2020-10-12 14:35:56,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933211494] [2020-10-12 14:35:56,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:35:56,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:35:56,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823780642] [2020-10-12 14:35:56,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:35:56,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:35:56,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:35:56,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:35:56,264 INFO L87 Difference]: Start difference. First operand 9977 states and 10965 transitions. Second operand 8 states. [2020-10-12 14:35:59,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:35:59,342 INFO L93 Difference]: Finished difference Result 17238 states and 19123 transitions. [2020-10-12 14:35:59,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 14:35:59,344 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1322 [2020-10-12 14:35:59,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:35:59,372 INFO L225 Difference]: With dead ends: 17238 [2020-10-12 14:35:59,372 INFO L226 Difference]: Without dead ends: 9633 [2020-10-12 14:35:59,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-12 14:35:59,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9633 states. [2020-10-12 14:35:59,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9633 to 9627. [2020-10-12 14:35:59,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9627 states. [2020-10-12 14:35:59,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9627 states to 9627 states and 10577 transitions. [2020-10-12 14:35:59,560 INFO L78 Accepts]: Start accepts. Automaton has 9627 states and 10577 transitions. Word has length 1322 [2020-10-12 14:35:59,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:35:59,562 INFO L479 AbstractCegarLoop]: Abstraction has 9627 states and 10577 transitions. [2020-10-12 14:35:59,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:35:59,562 INFO L276 IsEmpty]: Start isEmpty. Operand 9627 states and 10577 transitions. [2020-10-12 14:35:59,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1357 [2020-10-12 14:35:59,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:35:59,598 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:35:59,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:35:59,598 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:35:59,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:35:59,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1802074485, now seen corresponding path program 1 times [2020-10-12 14:35:59,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:35:59,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658873437] [2020-10-12 14:35:59,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:35:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:35:59,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:00,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:00,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:02,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:04,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:04,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1382 [2020-10-12 14:36:04,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:36:04,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-10-12 14:36:04,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:04,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:04,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 544 [2020-10-12 14:36:04,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 14:36:04,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:05,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:05,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:05,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:05,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:05,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:05,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:36:05,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:05,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:05,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:05,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:05,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:05,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:05,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:05,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:05,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:36:05,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:05,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:36:05,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:05,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:05,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:05,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:05,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:05,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:36:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:05,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:05,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:05,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:36:05,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:05,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:36:05,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:05,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:05,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:36:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:05,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:05,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:05,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:36:05,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:05,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:36:05,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:05,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:05,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 14:36:05,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:05,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:36:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:05,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:05,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:05,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:36:05,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:05,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:36:05,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:05,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:05,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:05,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 14:36:05,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:05,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-12 14:36:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:05,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:05,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:05,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:36:05,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:05,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 14:36:05,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:05,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:05,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 14:36:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:05,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:05,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-12 14:36:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:05,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:05,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:05,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:36:05,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:05,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:36:05,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:05,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:05,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:36:05,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:05,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:05,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-12 14:36:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:05,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:05,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:05,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:36:05,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:05,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:36:05,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:05,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:05,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:36:05,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:05,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:05,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-12 14:36:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:05,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:05,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:05,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:36:05,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:05,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 14:36:05,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:05,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:05,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:36:05,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:05,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:05,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:36:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:05,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:05,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:05,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:36:05,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:05,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:36:05,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:05,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:05,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:05,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:05,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:06,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3823 backedges. 728 proven. 266 refuted. 0 times theorem prover too weak. 2829 trivial. 0 not checked. [2020-10-12 14:36:06,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658873437] [2020-10-12 14:36:06,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:06,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:36:06,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700098236] [2020-10-12 14:36:06,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:36:06,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:06,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:36:06,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:36:06,884 INFO L87 Difference]: Start difference. First operand 9627 states and 10577 transitions. Second operand 7 states. [2020-10-12 14:36:09,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:09,921 INFO L93 Difference]: Finished difference Result 20253 states and 22449 transitions. [2020-10-12 14:36:09,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:36:09,922 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1356 [2020-10-12 14:36:09,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:09,979 INFO L225 Difference]: With dead ends: 20253 [2020-10-12 14:36:09,979 INFO L226 Difference]: Without dead ends: 13356 [2020-10-12 14:36:09,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:36:10,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13356 states. [2020-10-12 14:36:10,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13356 to 12339. [2020-10-12 14:36:10,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12339 states. [2020-10-12 14:36:10,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12339 states to 12339 states and 13561 transitions. [2020-10-12 14:36:10,229 INFO L78 Accepts]: Start accepts. Automaton has 12339 states and 13561 transitions. Word has length 1356 [2020-10-12 14:36:10,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:10,230 INFO L479 AbstractCegarLoop]: Abstraction has 12339 states and 13561 transitions. [2020-10-12 14:36:10,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:36:10,231 INFO L276 IsEmpty]: Start isEmpty. Operand 12339 states and 13561 transitions. [2020-10-12 14:36:10,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1360 [2020-10-12 14:36:10,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:10,271 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:36:10,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:36:10,272 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:10,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:10,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1900062620, now seen corresponding path program 1 times [2020-10-12 14:36:10,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:10,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569786949] [2020-10-12 14:36:10,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:10,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:11,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:14,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:15,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:15,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:15,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1381 [2020-10-12 14:36:15,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:36:15,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5341 [2020-10-12 14:36:15,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:36:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1016 [2020-10-12 14:36:15,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:36:15,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:16,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:16,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:16,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:16,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:16,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:16,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:36:16,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:16,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:16,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:16,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:16,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:16,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:16,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:16,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:16,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:36:16,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:16,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:36:16,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:16,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:16,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:36:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:16,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:16,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:16,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:36:16,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:16,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:36:16,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:16,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:16,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:16,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:16,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:16,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:36:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:16,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:16,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:16,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:36:16,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:16,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:36:16,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:16,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:16,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:16,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:16,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:16,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:36:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:16,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:16,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:16,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:36:16,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:16,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:36:16,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:16,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:16,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:16,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:16,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:16,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-12 14:36:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:16,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:16,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:16,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:36:16,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:16,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-12 14:36:16,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:16,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:16,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:16,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:36:16,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:16,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-12 14:36:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:16,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:17,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:17,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:19,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:19,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:36:19,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:36:19,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2374 [2020-10-12 14:36:19,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:19,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:36:19,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:19,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 298 [2020-10-12 14:36:19,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:20,229 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-10-12 14:36:20,470 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2020-10-12 14:36:20,711 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2020-10-12 14:36:20,969 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2020-10-12 14:36:21,236 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2020-10-12 14:36:21,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:36:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:21,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:21,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:21,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:36:21,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:21,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:36:21,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:21,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:21,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:21,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 14:36:21,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2983 backedges. 1357 proven. 2 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2020-10-12 14:36:27,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569786949] [2020-10-12 14:36:27,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:27,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:36:27,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245757654] [2020-10-12 14:36:27,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:36:27,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:27,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:36:27,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:36:27,803 INFO L87 Difference]: Start difference. First operand 12339 states and 13561 transitions. Second operand 13 states. [2020-10-12 14:36:29,167 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-10-12 14:36:30,152 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2020-10-12 14:36:30,391 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2020-10-12 14:36:30,944 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 79 [2020-10-12 14:36:31,232 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2020-10-12 14:36:31,537 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 76 [2020-10-12 14:36:32,026 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 93 [2020-10-12 14:36:34,852 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2020-10-12 14:36:35,942 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2020-10-12 14:36:36,221 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 66 [2020-10-12 14:36:36,781 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2020-10-12 14:36:37,100 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2020-10-12 14:36:37,655 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 76 [2020-10-12 14:36:38,781 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2020-10-12 14:36:39,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:39,284 INFO L93 Difference]: Finished difference Result 22287 states and 24676 transitions. [2020-10-12 14:36:39,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:36:39,286 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1359 [2020-10-12 14:36:39,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:39,319 INFO L225 Difference]: With dead ends: 22287 [2020-10-12 14:36:39,319 INFO L226 Difference]: Without dead ends: 12604 [2020-10-12 14:36:39,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:36:39,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12604 states. [2020-10-12 14:36:39,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12604 to 12604. [2020-10-12 14:36:39,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12604 states. [2020-10-12 14:36:39,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12604 states to 12604 states and 13838 transitions. [2020-10-12 14:36:39,556 INFO L78 Accepts]: Start accepts. Automaton has 12604 states and 13838 transitions. Word has length 1359 [2020-10-12 14:36:39,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:39,558 INFO L479 AbstractCegarLoop]: Abstraction has 12604 states and 13838 transitions. [2020-10-12 14:36:39,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:36:39,558 INFO L276 IsEmpty]: Start isEmpty. Operand 12604 states and 13838 transitions. [2020-10-12 14:36:39,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1375 [2020-10-12 14:36:39,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:39,598 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:36:39,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:36:39,598 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:39,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:39,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1740438953, now seen corresponding path program 1 times [2020-10-12 14:36:39,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:39,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [939042274] [2020-10-12 14:36:39,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:40,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:40,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:40,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:44,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:44,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1400 [2020-10-12 14:36:44,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:36:44,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-12 14:36:44,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:44,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:44,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-12 14:36:44,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 14:36:44,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:45,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:45,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:45,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:45,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:45,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:45,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:36:45,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:45,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:45,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:45,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:45,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:36:45,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:45,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:45,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:45,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:36:45,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:45,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 14:36:45,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:45,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:45,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:45,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:36:45,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:36:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:45,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:45,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:45,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:36:45,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:45,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:36:45,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:45,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:45,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:45,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:45,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:36:45,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:36:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:45,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:45,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:45,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:36:45,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:45,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:36:45,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:45,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:45,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:45,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:45,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:45,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:36:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:45,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:45,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:45,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:36:45,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:45,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:36:45,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:45,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:45,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 14:36:45,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:36:45,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-12 14:36:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:45,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:45,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:45,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:36:45,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:45,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-12 14:36:45,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:45,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:36:45,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:45,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-12 14:36:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:45,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:45,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:45,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 14:36:45,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:45,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 14:36:45,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:45,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:45,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-12 14:36:45,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:45,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:45,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 911 [2020-10-12 14:36:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:46,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:46,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:46,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:36:46,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:46,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:36:46,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:46,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:46,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:36:46,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:46,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:46,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1021 [2020-10-12 14:36:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:46,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:46,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:46,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:36:46,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:46,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-12 14:36:46,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:46,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:46,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:36:46,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:46,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:46,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:36:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:46,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:46,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:46,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:36:46,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:46,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:36:46,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:46,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:46,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:46,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:46,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:47,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3814 backedges. 938 proven. 333 refuted. 0 times theorem prover too weak. 2543 trivial. 0 not checked. [2020-10-12 14:36:47,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [939042274] [2020-10-12 14:36:47,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:47,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:36:47,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846518932] [2020-10-12 14:36:47,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:36:47,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:47,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:36:47,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:36:47,166 INFO L87 Difference]: Start difference. First operand 12604 states and 13838 transitions. Second operand 7 states. [2020-10-12 14:36:51,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:36:51,957 INFO L93 Difference]: Finished difference Result 26223 states and 29001 transitions. [2020-10-12 14:36:51,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:36:51,959 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1374 [2020-10-12 14:36:51,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:36:52,003 INFO L225 Difference]: With dead ends: 26223 [2020-10-12 14:36:52,003 INFO L226 Difference]: Without dead ends: 16349 [2020-10-12 14:36:52,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:36:52,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16349 states. [2020-10-12 14:36:52,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16349 to 15332. [2020-10-12 14:36:52,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15332 states. [2020-10-12 14:36:52,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15332 states to 15332 states and 16701 transitions. [2020-10-12 14:36:52,273 INFO L78 Accepts]: Start accepts. Automaton has 15332 states and 16701 transitions. Word has length 1374 [2020-10-12 14:36:52,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:36:52,274 INFO L479 AbstractCegarLoop]: Abstraction has 15332 states and 16701 transitions. [2020-10-12 14:36:52,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:36:52,274 INFO L276 IsEmpty]: Start isEmpty. Operand 15332 states and 16701 transitions. [2020-10-12 14:36:52,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1427 [2020-10-12 14:36:52,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:36:52,313 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:36:52,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:36:52,313 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:36:52,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:36:52,314 INFO L82 PathProgramCache]: Analyzing trace with hash 576356404, now seen corresponding path program 1 times [2020-10-12 14:36:52,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:36:52,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219888772] [2020-10-12 14:36:52,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:36:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:52,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:53,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:53,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:53,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:57,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:57,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1454 [2020-10-12 14:36:57,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:36:57,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-12 14:36:57,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:57,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:57,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 977 [2020-10-12 14:36:57,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:36:57,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:57,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:36:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:57,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:57,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:57,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:36:57,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:57,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:36:57,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:57,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:57,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:57,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:57,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:36:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:57,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:57,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:57,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:36:57,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:57,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:36:57,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:57,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:57,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:57,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:36:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:57,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:57,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:57,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:36:57,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:57,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:36:57,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:57,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:57,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:57,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:57,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:57,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:36:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:57,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:57,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:57,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:36:57,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:57,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:36:57,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:57,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:57,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:57,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:57,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:58,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:36:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:58,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:58,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:58,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:36:58,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:58,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:36:58,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:58,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:58,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:58,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-12 14:36:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:58,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:58,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:58,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:36:58,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:58,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:36:58,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:58,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:58,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:58,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:58,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:58,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 677 [2020-10-12 14:36:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:58,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:58,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:58,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:36:58,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:58,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:36:58,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:58,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:58,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:58,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:58,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:58,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 821 [2020-10-12 14:36:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:58,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:58,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:58,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:36:58,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:58,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:36:58,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:36:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-12 14:36:58,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:58,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 963 [2020-10-12 14:36:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:58,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:58,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:58,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:36:58,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:58,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 14:36:58,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:58,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:36:58,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:36:58,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 14:36:58,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:58,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1073 [2020-10-12 14:36:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:58,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:58,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:58,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:36:58,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:58,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 14:36:58,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:58,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:58,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:36:58,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:58,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:58,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:36:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:36:58,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:36:58,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:36:58,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:36:58,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:36:58,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:36:58,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:36:58,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:36:58,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:36:58,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:36:58,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:36:59,615 INFO L134 CoverageAnalysis]: Checked inductivity of 4441 backedges. 1257 proven. 109 refuted. 0 times theorem prover too weak. 3075 trivial. 0 not checked. [2020-10-12 14:36:59,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219888772] [2020-10-12 14:36:59,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:36:59,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:36:59,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80304143] [2020-10-12 14:36:59,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:36:59,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:36:59,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:36:59,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:36:59,617 INFO L87 Difference]: Start difference. First operand 15332 states and 16701 transitions. Second operand 7 states. [2020-10-12 14:37:03,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:03,260 INFO L93 Difference]: Finished difference Result 31334 states and 34272 transitions. [2020-10-12 14:37:03,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:37:03,261 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1426 [2020-10-12 14:37:03,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:03,313 INFO L225 Difference]: With dead ends: 31334 [2020-10-12 14:37:03,313 INFO L226 Difference]: Without dead ends: 16694 [2020-10-12 14:37:03,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:37:03,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16694 states. [2020-10-12 14:37:03,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16694 to 16688. [2020-10-12 14:37:03,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16688 states. [2020-10-12 14:37:03,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16688 states to 16688 states and 18084 transitions. [2020-10-12 14:37:03,582 INFO L78 Accepts]: Start accepts. Automaton has 16688 states and 18084 transitions. Word has length 1426 [2020-10-12 14:37:03,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:03,583 INFO L479 AbstractCegarLoop]: Abstraction has 16688 states and 18084 transitions. [2020-10-12 14:37:03,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:37:03,583 INFO L276 IsEmpty]: Start isEmpty. Operand 16688 states and 18084 transitions. [2020-10-12 14:37:03,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1468 [2020-10-12 14:37:03,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:03,620 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:37:03,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:37:03,620 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:03,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:03,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1402685210, now seen corresponding path program 1 times [2020-10-12 14:37:03,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:03,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983514704] [2020-10-12 14:37:03,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:04,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:04,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:04,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1493 [2020-10-12 14:37:09,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:37:09,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5120 [2020-10-12 14:37:09,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:09,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-12 14:37:09,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 14:37:09,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:09,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:37:09,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:09,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:09,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:09,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:37:09,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:37:09,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:09,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:09,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:09,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:37:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:37:09,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:37:09,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:09,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:37:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:37:09,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:37:09,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:09,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:09,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:09,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:37:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:37:09,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 14:37:09,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:09,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:09,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-12 14:37:09,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-12 14:37:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:37:09,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:37:09,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:09,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:09,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:37:09,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 816 [2020-10-12 14:37:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 14:37:09,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:37:09,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:09,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-12 14:37:09,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:09,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2020-10-12 14:37:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:37:09,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:37:09,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:09,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:37:09,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:09,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:09,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1114 [2020-10-12 14:37:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:09,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:09,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:09,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:37:09,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:09,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 14:37:09,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:09,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:37:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:09,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:10,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:37:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:10,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:10,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:10,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:37:10,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:10,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:37:10,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:10,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:10,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:10,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:10,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:10,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4199 backedges. 855 proven. 242 refuted. 0 times theorem prover too weak. 3102 trivial. 0 not checked. [2020-10-12 14:37:10,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983514704] [2020-10-12 14:37:10,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:37:10,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:37:10,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062129107] [2020-10-12 14:37:10,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:37:10,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:37:10,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:37:10,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:37:10,849 INFO L87 Difference]: Start difference. First operand 16688 states and 18084 transitions. Second operand 7 states. [2020-10-12 14:37:15,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:15,644 INFO L93 Difference]: Finished difference Result 33694 states and 36784 transitions. [2020-10-12 14:37:15,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:37:15,645 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1467 [2020-10-12 14:37:15,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:15,688 INFO L225 Difference]: With dead ends: 33694 [2020-10-12 14:37:15,688 INFO L226 Difference]: Without dead ends: 20761 [2020-10-12 14:37:15,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:37:15,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20761 states. [2020-10-12 14:37:15,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20761 to 20422. [2020-10-12 14:37:15,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20422 states. [2020-10-12 14:37:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20422 states to 20422 states and 22019 transitions. [2020-10-12 14:37:16,028 INFO L78 Accepts]: Start accepts. Automaton has 20422 states and 22019 transitions. Word has length 1467 [2020-10-12 14:37:16,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:16,029 INFO L479 AbstractCegarLoop]: Abstraction has 20422 states and 22019 transitions. [2020-10-12 14:37:16,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:37:16,030 INFO L276 IsEmpty]: Start isEmpty. Operand 20422 states and 22019 transitions. [2020-10-12 14:37:16,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1472 [2020-10-12 14:37:16,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:16,066 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:37:16,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:37:16,067 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:16,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:16,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1977257287, now seen corresponding path program 1 times [2020-10-12 14:37:16,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:16,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949403621] [2020-10-12 14:37:16,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:16,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:16,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:19,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:20,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:21,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:21,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:21,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1495 [2020-10-12 14:37:21,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:37:21,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-12 14:37:21,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:21,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:37:21,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1016 [2020-10-12 14:37:21,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 411 [2020-10-12 14:37:21,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:21,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:21,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:21,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:21,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:21,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:21,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:37:21,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:21,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:21,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:21,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:21,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:21,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:21,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:21,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:21,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:37:21,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:21,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:37:21,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:21,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:21,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:21,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:21,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:21,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:37:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:21,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:21,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:21,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:37:21,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:21,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:37:21,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:21,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:21,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:21,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:21,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:21,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:37:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:21,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:21,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:21,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:37:21,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:21,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:37:21,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:21,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:21,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:37:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:21,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:21,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:21,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:37:21,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:21,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:37:21,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:21,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:21,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:21,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:21,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:21,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-12 14:37:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:21,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:22,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:22,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:37:22,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:22,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-12 14:37:22,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:22,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:22,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:22,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:37:22,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:22,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-12 14:37:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:22,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:22,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:22,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:22,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:37:22,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:37:22,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-12 14:37:22,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:22,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:22,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:22,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:37:22,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:22,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1118 [2020-10-12 14:37:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:22,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:22,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:23,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:23,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:37:23,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:37:23,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-10-12 14:37:23,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:23,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 14:37:23,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:23,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 298 [2020-10-12 14:37:23,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:23,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:37:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:23,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:23,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:23,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:37:23,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:23,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:37:23,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:23,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:37:23,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:23,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 14:37:23,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:28,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3714 backedges. 2033 proven. 47 refuted. 0 times theorem prover too weak. 1634 trivial. 0 not checked. [2020-10-12 14:37:28,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949403621] [2020-10-12 14:37:28,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:37:28,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:37:28,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616445806] [2020-10-12 14:37:28,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:37:28,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:37:28,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:37:28,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:37:28,643 INFO L87 Difference]: Start difference. First operand 20422 states and 22019 transitions. Second operand 13 states. [2020-10-12 14:37:29,665 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-10-12 14:37:30,495 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-10-12 14:37:34,974 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-10-12 14:37:37,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:37,280 INFO L93 Difference]: Finished difference Result 37438 states and 40579 transitions. [2020-10-12 14:37:37,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 14:37:37,281 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1471 [2020-10-12 14:37:37,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:37,325 INFO L225 Difference]: With dead ends: 37438 [2020-10-12 14:37:37,325 INFO L226 Difference]: Without dead ends: 20775 [2020-10-12 14:37:37,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=264, Invalid=996, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 14:37:37,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20775 states. [2020-10-12 14:37:37,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20775 to 20424. [2020-10-12 14:37:37,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20424 states. [2020-10-12 14:37:37,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20424 states to 20424 states and 21972 transitions. [2020-10-12 14:37:37,668 INFO L78 Accepts]: Start accepts. Automaton has 20424 states and 21972 transitions. Word has length 1471 [2020-10-12 14:37:37,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:37,670 INFO L479 AbstractCegarLoop]: Abstraction has 20424 states and 21972 transitions. [2020-10-12 14:37:37,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:37:37,670 INFO L276 IsEmpty]: Start isEmpty. Operand 20424 states and 21972 transitions. [2020-10-12 14:37:37,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1549 [2020-10-12 14:37:37,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:37,712 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:37:37,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:37:37,712 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:37,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:37,713 INFO L82 PathProgramCache]: Analyzing trace with hash -531565797, now seen corresponding path program 1 times [2020-10-12 14:37:37,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:37,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699945289] [2020-10-12 14:37:37,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:38,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:38,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:38,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:43,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:43,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1574 [2020-10-12 14:37:43,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:37:43,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5344 [2020-10-12 14:37:43,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:43,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:43,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 544 [2020-10-12 14:37:43,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-12 14:37:43,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:43,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:43,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:43,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:43,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:43,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:43,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:37:43,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:43,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:43,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:43,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:43,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:43,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:43,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:37:43,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:43,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:37:43,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:43,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:43,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:43,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:43,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:43,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:37:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:43,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:43,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:43,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:37:43,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:43,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:37:43,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:43,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:43,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:37:43,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:43,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:43,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:43,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:37:43,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:43,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:37:43,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:43,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:43,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:43,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 14:37:43,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:43,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:37:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:43,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:44,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:44,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-12 14:37:44,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:44,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-12 14:37:44,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:44,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:44,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:44,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-12 14:37:44,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:44,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 814 [2020-10-12 14:37:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:44,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:44,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:44,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:37:44,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:44,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:37:44,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:44,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:44,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 14:37:44,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:44,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:44,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 897 [2020-10-12 14:37:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:44,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:44,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:44,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 14:37:44,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:44,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 14:37:44,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:44,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:44,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-12 14:37:44,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:44,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:44,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1085 [2020-10-12 14:37:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:44,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:44,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:44,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:37:44,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:44,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:37:44,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:44,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:44,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:37:44,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:44,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:44,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1195 [2020-10-12 14:37:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:44,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:44,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:44,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:37:44,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:44,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 14:37:44,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:44,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:44,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:37:44,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:44,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:44,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:37:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:44,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:44,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:44,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:37:44,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:44,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:37:44,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:44,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:44,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:45,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 1051 proven. 647 refuted. 0 times theorem prover too weak. 2626 trivial. 0 not checked. [2020-10-12 14:37:45,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699945289] [2020-10-12 14:37:45,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:37:45,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:37:45,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504781651] [2020-10-12 14:37:45,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:37:45,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:37:45,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:37:45,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:37:45,650 INFO L87 Difference]: Start difference. First operand 20424 states and 21972 transitions. Second operand 7 states. [2020-10-12 14:37:50,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:37:50,303 INFO L93 Difference]: Finished difference Result 45505 states and 49277 transitions. [2020-10-12 14:37:50,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:37:50,305 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1548 [2020-10-12 14:37:50,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:37:50,347 INFO L225 Difference]: With dead ends: 45505 [2020-10-12 14:37:50,347 INFO L226 Difference]: Without dead ends: 25777 [2020-10-12 14:37:50,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:37:50,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25777 states. [2020-10-12 14:37:50,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25777 to 24501. [2020-10-12 14:37:50,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24501 states. [2020-10-12 14:37:50,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24501 states to 24501 states and 26584 transitions. [2020-10-12 14:37:50,735 INFO L78 Accepts]: Start accepts. Automaton has 24501 states and 26584 transitions. Word has length 1548 [2020-10-12 14:37:50,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:37:50,736 INFO L479 AbstractCegarLoop]: Abstraction has 24501 states and 26584 transitions. [2020-10-12 14:37:50,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:37:50,736 INFO L276 IsEmpty]: Start isEmpty. Operand 24501 states and 26584 transitions. [2020-10-12 14:37:50,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1609 [2020-10-12 14:37:50,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:37:50,778 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:37:50,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:37:50,779 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:37:50,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:37:50,779 INFO L82 PathProgramCache]: Analyzing trace with hash -412901014, now seen corresponding path program 1 times [2020-10-12 14:37:50,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:37:50,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1189318154] [2020-10-12 14:37:50,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:37:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:51,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:51,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:51,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:52,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:56,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:56,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1638 [2020-10-12 14:37:56,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:37:56,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-12 14:37:56,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-12 14:37:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 14:37:56,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:56,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:37:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:56,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:56,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:56,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:37:56,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:56,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:37:56,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:56,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:56,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:56,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:56,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:56,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:37:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:56,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:56,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:56,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:37:56,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:56,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:37:56,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:56,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:56,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:56,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:56,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:56,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:37:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:56,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:56,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:56,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:37:56,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:56,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:37:56,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:56,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:56,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:56,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:56,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:56,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:37:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:56,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:56,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:56,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:37:56,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:56,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:37:56,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:56,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:56,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:56,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:56,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:56,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:37:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:56,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:56,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:56,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:37:56,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:56,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:37:56,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:37:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:56,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 14:37:56,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:56,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-12 14:37:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:56,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:56,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:56,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:37:56,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:56,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-12 14:37:56,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:56,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:37:56,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:37:56,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 14:37:56,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:56,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2020-10-12 14:37:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:56,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:56,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:56,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:37:56,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:56,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:37:56,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:56,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:56,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:37:56,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:56,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:56,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 818 [2020-10-12 14:37:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:56,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:56,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:56,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-12 14:37:56,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:56,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-12 14:37:56,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:56,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:56,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-12 14:37:56,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:56,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:57,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:37:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:57,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:57,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:57,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 14:37:57,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:57,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:37:57,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:57,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:57,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:57,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:57,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:57,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1145 [2020-10-12 14:37:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:57,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:57,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:57,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:37:57,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:57,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:37:57,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:57,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:37:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:57,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:57,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1255 [2020-10-12 14:37:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:57,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:57,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:57,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-12 14:37:57,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:57,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 14:37:57,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:57,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:57,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 14:37:57,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:57,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:37:57,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:37:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:37:57,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:37:57,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:37:57,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 14:37:57,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:37:57,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:37:57,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:37:57,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:37:57,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:37:57,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:37:57,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0