/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/Problem14_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:01:29,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:01:29,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:01:29,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:01:29,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:01:29,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:01:29,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:01:29,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:01:29,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:01:29,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:01:29,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:01:29,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:01:29,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:01:29,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:01:29,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:01:29,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:01:29,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:01:29,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:01:29,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:01:29,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:01:29,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:01:29,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:01:29,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:01:29,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:01:29,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:01:29,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:01:29,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:01:29,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:01:29,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:01:29,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:01:29,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:01:29,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:01:29,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:01:29,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:01:29,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:01:29,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:01:29,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:01:29,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:01:29,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:01:29,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:01:29,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:01:29,380 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 14:01:29,426 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:01:29,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:01:29,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:01:29,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:01:29,429 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:01:29,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:01:29,429 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:01:29,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:01:29,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:01:29,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:01:29,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:01:29,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:01:29,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:01:29,432 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:01:29,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:01:29,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:01:29,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:01:29,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:01:29,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:01:29,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:01:29,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:01:29,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:01:29,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:01:29,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:01:29,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:01:29,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:01:29,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:01:29,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:01:29,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:01:29,435 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 14:01:29,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:01:29,748 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:01:29,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:01:29,754 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:01:29,755 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:01:29,755 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label47.c [2020-10-12 14:01:29,824 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af4a25b2b/5f65a3339f904725ba4490700c9bed7f/FLAG35bcf3873 [2020-10-12 14:01:30,421 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:01:30,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label47.c [2020-10-12 14:01:30,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af4a25b2b/5f65a3339f904725ba4490700c9bed7f/FLAG35bcf3873 [2020-10-12 14:01:30,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af4a25b2b/5f65a3339f904725ba4490700c9bed7f [2020-10-12 14:01:30,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:01:30,725 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:01:30,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:01:30,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:01:30,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:01:30,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:01:30" (1/1) ... [2020-10-12 14:01:30,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6417f8ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:01:30, skipping insertion in model container [2020-10-12 14:01:30,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:01:30" (1/1) ... [2020-10-12 14:01:30,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:01:30,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:01:31,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:01:31,440 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:01:31,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:01:31,614 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:01:31,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:01:31 WrapperNode [2020-10-12 14:01:31,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:01:31,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:01:31,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:01:31,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:01:31,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:01:31" (1/1) ... [2020-10-12 14:01:31,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:01:31" (1/1) ... [2020-10-12 14:01:31,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:01:31" (1/1) ... [2020-10-12 14:01:31,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:01:31" (1/1) ... [2020-10-12 14:01:31,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:01:31" (1/1) ... [2020-10-12 14:01:31,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:01:31" (1/1) ... [2020-10-12 14:01:31,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:01:31" (1/1) ... [2020-10-12 14:01:31,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:01:31,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:01:31,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:01:31,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:01:31,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:01:31" (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 14:01:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:01:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:01:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:01:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:01:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:01:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:01:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:01:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:01:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:01:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:01:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:01:33,330 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:01:33,331 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:01:33,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:01:33 BoogieIcfgContainer [2020-10-12 14:01:33,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:01:33,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:01:33,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:01:33,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:01:33,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:01:30" (1/3) ... [2020-10-12 14:01:33,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@994acb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:01:33, skipping insertion in model container [2020-10-12 14:01:33,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:01:31" (2/3) ... [2020-10-12 14:01:33,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@994acb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:01:33, skipping insertion in model container [2020-10-12 14:01:33,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:01:33" (3/3) ... [2020-10-12 14:01:33,348 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label47.c [2020-10-12 14:01:33,360 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:01:33,369 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:01:33,385 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:01:33,413 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:01:33,413 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:01:33,413 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:01:33,414 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:01:33,414 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:01:33,414 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:01:33,414 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:01:33,414 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:01:33,438 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-12 14:01:33,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-12 14:01:33,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:33,448 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] [2020-10-12 14:01:33,449 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:33,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:33,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1824869262, now seen corresponding path program 1 times [2020-10-12 14:01:33,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:33,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358907062] [2020-10-12 14:01:33,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:33,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:34,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:34,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-12 14:01:34,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:34,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-12 14:01:34,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:01:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:01:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 14:01:34,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 14:01:34,436 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-12 14:01:34,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:34,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:34,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:34,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:34,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:34,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:01:34,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:34,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:34,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:34,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:01:34,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:34,477 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 14:01:34,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358907062] [2020-10-12 14:01:34,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:01:34,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 14:01:34,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686587736] [2020-10-12 14:01:34,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:01:34,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:34,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:01:34,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:01:34,504 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-10-12 14:01:37,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:37,151 INFO L93 Difference]: Finished difference Result 886 states and 1612 transitions. [2020-10-12 14:01:37,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:01:37,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-10-12 14:01:37,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:37,201 INFO L225 Difference]: With dead ends: 886 [2020-10-12 14:01:37,201 INFO L226 Difference]: Without dead ends: 564 [2020-10-12 14:01:37,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:01:37,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-12 14:01:37,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-12 14:01:37,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-12 14:01:37,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 855 transitions. [2020-10-12 14:01:37,378 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 855 transitions. Word has length 39 [2020-10-12 14:01:37,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:37,379 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 855 transitions. [2020-10-12 14:01:37,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:01:37,380 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 855 transitions. [2020-10-12 14:01:37,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-12 14:01:37,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:37,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:01:37,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:01:37,387 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:37,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:37,387 INFO L82 PathProgramCache]: Analyzing trace with hash 643656041, now seen corresponding path program 1 times [2020-10-12 14:01:37,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:37,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177421248] [2020-10-12 14:01:37,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:37,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:37,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:37,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:38,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:38,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:01:38,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:01:38,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 898 [2020-10-12 14:01:38,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:01:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:01:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:01:38,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:38,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:38,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:38,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:38,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:38,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:38,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:01:38,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:38,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:38,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:01:38,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:38,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:38,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:38,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:38,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:01:38,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:38,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-12 14:01:38,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:38,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:38,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:38,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 14:01:38,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:38,620 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:01:38,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177421248] [2020-10-12 14:01:38,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:01:38,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:01:38,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939658173] [2020-10-12 14:01:38,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:01:38,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:38,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:01:38,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:01:38,626 INFO L87 Difference]: Start difference. First operand 560 states and 855 transitions. Second operand 7 states. [2020-10-12 14:01:40,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:40,558 INFO L93 Difference]: Finished difference Result 1688 states and 2611 transitions. [2020-10-12 14:01:40,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:01:40,559 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-12 14:01:40,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:40,566 INFO L225 Difference]: With dead ends: 1688 [2020-10-12 14:01:40,566 INFO L226 Difference]: Without dead ends: 1134 [2020-10-12 14:01:40,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:01:40,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2020-10-12 14:01:40,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 938. [2020-10-12 14:01:40,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 938 states. [2020-10-12 14:01:40,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1300 transitions. [2020-10-12 14:01:40,609 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1300 transitions. Word has length 108 [2020-10-12 14:01:40,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:40,609 INFO L479 AbstractCegarLoop]: Abstraction has 938 states and 1300 transitions. [2020-10-12 14:01:40,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:01:40,609 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1300 transitions. [2020-10-12 14:01:40,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-12 14:01:40,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:40,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:01:40,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:01:40,615 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:40,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:40,615 INFO L82 PathProgramCache]: Analyzing trace with hash -81045839, now seen corresponding path program 1 times [2020-10-12 14:01:40,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:40,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053960542] [2020-10-12 14:01:40,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:40,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:40,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:40,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:41,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:41,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-12 14:01:41,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:41,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 981 [2020-10-12 14:01:41,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:41,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:01:41,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:01:41,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 14:01:41,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:41,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:41,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:41,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:41,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:41,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:41,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:01:41,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:41,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:41,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:41,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:01:41,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:41,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:41,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:41,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:41,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:01:41,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:41,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-12 14:01:41,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:41,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:41,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:41,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 14:01:41,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:42,050 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:01:42,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053960542] [2020-10-12 14:01:42,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:01:42,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:01:42,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020080109] [2020-10-12 14:01:42,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:01:42,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:42,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:01:42,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:01:42,056 INFO L87 Difference]: Start difference. First operand 938 states and 1300 transitions. Second operand 7 states. [2020-10-12 14:01:43,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:43,779 INFO L93 Difference]: Finished difference Result 1708 states and 2414 transitions. [2020-10-12 14:01:43,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:01:43,779 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-10-12 14:01:43,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:43,788 INFO L225 Difference]: With dead ends: 1708 [2020-10-12 14:01:43,788 INFO L226 Difference]: Without dead ends: 1144 [2020-10-12 14:01:43,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:01:43,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2020-10-12 14:01:43,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1124. [2020-10-12 14:01:43,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2020-10-12 14:01:43,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1506 transitions. [2020-10-12 14:01:43,848 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1506 transitions. Word has length 112 [2020-10-12 14:01:43,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:43,850 INFO L479 AbstractCegarLoop]: Abstraction has 1124 states and 1506 transitions. [2020-10-12 14:01:43,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:01:43,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1506 transitions. [2020-10-12 14:01:43,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-12 14:01:43,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:43,866 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:01:43,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:01:43,867 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:43,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:43,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1748448217, now seen corresponding path program 1 times [2020-10-12 14:01:43,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:43,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549512921] [2020-10-12 14:01:43,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:43,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:44,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:44,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:44,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:45,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:45,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-10-12 14:01:45,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:01:45,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1740 [2020-10-12 14:01:45,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:45,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:01:45,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-12 14:01:45,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:45,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:45,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:45,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:45,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:45,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:45,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:01:45,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:45,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:45,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:45,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:01:45,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:45,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:45,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:45,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:45,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 14:01:45,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:45,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 14:01:45,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:45,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:45,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:45,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 14:01:45,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:45,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 14:01:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:45,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:46,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:46,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:01:46,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:46,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-12 14:01:46,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:46,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:01:46,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:46,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 14:01:46,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:46,286 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 4 proven. 129 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 14:01:46,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549512921] [2020-10-12 14:01:46,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:46,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:01:46,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777591630] [2020-10-12 14:01:46,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:01:46,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:46,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:01:46,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:01:46,289 INFO L87 Difference]: Start difference. First operand 1124 states and 1506 transitions. Second operand 9 states. [2020-10-12 14:01:48,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:48,680 INFO L93 Difference]: Finished difference Result 1791 states and 2678 transitions. [2020-10-12 14:01:48,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 14:01:48,681 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 196 [2020-10-12 14:01:48,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:48,688 INFO L225 Difference]: With dead ends: 1791 [2020-10-12 14:01:48,689 INFO L226 Difference]: Without dead ends: 1178 [2020-10-12 14:01:48,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2020-10-12 14:01:48,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2020-10-12 14:01:48,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1124. [2020-10-12 14:01:48,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2020-10-12 14:01:48,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1392 transitions. [2020-10-12 14:01:48,757 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1392 transitions. Word has length 196 [2020-10-12 14:01:48,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:48,759 INFO L479 AbstractCegarLoop]: Abstraction has 1124 states and 1392 transitions. [2020-10-12 14:01:48,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:01:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1392 transitions. [2020-10-12 14:01:48,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-12 14:01:48,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:48,763 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:01:48,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:01:48,764 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:48,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:48,764 INFO L82 PathProgramCache]: Analyzing trace with hash 2040680205, now seen corresponding path program 1 times [2020-10-12 14:01:48,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:48,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857952110] [2020-10-12 14:01:48,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:48,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:48,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:49,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:49,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:49,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:51,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:51,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-12 14:01:51,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:01:51,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3093 [2020-10-12 14:01:51,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:01:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:01:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-12 14:01:51,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:51,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:51,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:51,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:51,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:51,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:51,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:01:51,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:51,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:51,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:51,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:01:51,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:51,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:52,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:52,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:52,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 14:01:52,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:52,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 14:01:52,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:52,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:52,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:52,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 14:01:52,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:52,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 14:01:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:52,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:52,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:52,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:01:52,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:52,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 14:01:52,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:52,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:52,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:52,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:01:52,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:52,509 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 65 proven. 78 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 14:01:52,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857952110] [2020-10-12 14:01:52,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:52,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:01:52,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137381442] [2020-10-12 14:01:52,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:01:52,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:52,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:01:52,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:01:52,513 INFO L87 Difference]: Start difference. First operand 1124 states and 1392 transitions. Second operand 8 states. [2020-10-12 14:01:54,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:54,059 INFO L93 Difference]: Finished difference Result 1724 states and 2222 transitions. [2020-10-12 14:01:54,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:01:54,060 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 206 [2020-10-12 14:01:54,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:54,066 INFO L225 Difference]: With dead ends: 1724 [2020-10-12 14:01:54,066 INFO L226 Difference]: Without dead ends: 1156 [2020-10-12 14:01:54,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:54,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2020-10-12 14:01:54,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1120. [2020-10-12 14:01:54,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1120 states. [2020-10-12 14:01:54,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1380 transitions. [2020-10-12 14:01:54,099 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1380 transitions. Word has length 206 [2020-10-12 14:01:54,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:54,100 INFO L479 AbstractCegarLoop]: Abstraction has 1120 states and 1380 transitions. [2020-10-12 14:01:54,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:01:54,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1380 transitions. [2020-10-12 14:01:54,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-12 14:01:54,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:54,104 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:54,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:01:54,105 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:54,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:54,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1898052406, now seen corresponding path program 1 times [2020-10-12 14:01:54,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:54,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967545198] [2020-10-12 14:01:54,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:54,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:54,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:54,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:57,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:57,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-12 14:01:57,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:01:57,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3534 [2020-10-12 14:01:57,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:57,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:01:57,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:01:57,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-12 14:01:57,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:57,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:57,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:57,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:57,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:57,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:57,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:01:57,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:57,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:57,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:57,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:01:57,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:01:57,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:57,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:57,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:57,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:57,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:57,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-12 14:01:57,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:57,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:57,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:57,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 14:01:57,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:58,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 14:01:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:58,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:58,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:58,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:01:58,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:58,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:01:58,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:58,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:58,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 14:01:58,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:58,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:58,093 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 64 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 14:01:58,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967545198] [2020-10-12 14:01:58,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:58,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:01:58,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923364470] [2020-10-12 14:01:58,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:01:58,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:58,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:01:58,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:01:58,097 INFO L87 Difference]: Start difference. First operand 1120 states and 1380 transitions. Second operand 7 states. [2020-10-12 14:01:59,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:59,893 INFO L93 Difference]: Finished difference Result 2998 states and 3800 transitions. [2020-10-12 14:01:59,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:01:59,898 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2020-10-12 14:01:59,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:59,910 INFO L225 Difference]: With dead ends: 2998 [2020-10-12 14:01:59,910 INFO L226 Difference]: Without dead ends: 2066 [2020-10-12 14:01:59,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 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 14:01:59,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2020-10-12 14:01:59,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 1872. [2020-10-12 14:01:59,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1872 states. [2020-10-12 14:01:59,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 2252 transitions. [2020-10-12 14:01:59,997 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 2252 transitions. Word has length 221 [2020-10-12 14:01:59,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:59,998 INFO L479 AbstractCegarLoop]: Abstraction has 1872 states and 2252 transitions. [2020-10-12 14:01:59,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:01:59,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 2252 transitions. [2020-10-12 14:02:00,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-12 14:02:00,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:00,007 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:00,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:02:00,008 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:00,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:00,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1575600930, now seen corresponding path program 1 times [2020-10-12 14:02:00,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:00,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301611866] [2020-10-12 14:02:00,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:00,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:00,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:00,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:01,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:01,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:02,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:03,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:03,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 357 [2020-10-12 14:02:03,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:02:03,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3824 [2020-10-12 14:02:03,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:02:03,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 14:02:03,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 225 [2020-10-12 14:02:03,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:02:03,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:04,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:04,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:04,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:04,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:04,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:02:04,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:04,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:04,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:04,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:04,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:04,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:04,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:04,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:04,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 14:02:04,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:04,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 14:02:04,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:04,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 14:02:04,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:04,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 14:02:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:04,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:04,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:04,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:04,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:02:04,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:04,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-12 14:02:04,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:04,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-12 14:02:04,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:04,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-10-12 14:02:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:04,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:04,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:04,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 14:02:04,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:04,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-12 14:02:04,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:04,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:04,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:04,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 14:02:04,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:02:05,045 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 254 proven. 79 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-12 14:02:05,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301611866] [2020-10-12 14:02:05,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:05,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:02:05,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138335163] [2020-10-12 14:02:05,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:02:05,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:05,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:02:05,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:02:05,052 INFO L87 Difference]: Start difference. First operand 1872 states and 2252 transitions. Second operand 8 states. [2020-10-12 14:02:06,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:06,899 INFO L93 Difference]: Finished difference Result 3420 states and 4368 transitions. [2020-10-12 14:02:06,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:02:06,900 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 343 [2020-10-12 14:02:06,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:06,910 INFO L225 Difference]: With dead ends: 3420 [2020-10-12 14:02:06,910 INFO L226 Difference]: Without dead ends: 1734 [2020-10-12 14:02:06,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-10-12 14:02:06,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2020-10-12 14:02:06,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1700. [2020-10-12 14:02:06,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1700 states. [2020-10-12 14:02:06,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2035 transitions. [2020-10-12 14:02:06,958 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2035 transitions. Word has length 343 [2020-10-12 14:02:06,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:06,959 INFO L479 AbstractCegarLoop]: Abstraction has 1700 states and 2035 transitions. [2020-10-12 14:02:06,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:02:06,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2035 transitions. [2020-10-12 14:02:06,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2020-10-12 14:02:06,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:06,967 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 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] [2020-10-12 14:02:06,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:02:06,968 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:06,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:06,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1042758561, now seen corresponding path program 1 times [2020-10-12 14:02:06,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:06,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779156836] [2020-10-12 14:02:06,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:07,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:07,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:07,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:08,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:11,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:12,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:12,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 430 [2020-10-12 14:02:12,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:02:12,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 14:02:12,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:12,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:02:12,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 306 [2020-10-12 14:02:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 14:02:12,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:02:12,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:12,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:12,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:12,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:12,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:12,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:12,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:12,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:12,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:12,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:12,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:12,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:12,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:12,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:12,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:12,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:02:12,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:12,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:12,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:12,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:12,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:12,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:12,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:12,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:12,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:12,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:12,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:02:12,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:12,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:12,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:12,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:12,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:12,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:12,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:12,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:12,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:02:12,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:12,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:02:12,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:12,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:12,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:12,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 14:02:12,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:02:12,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-10-12 14:02:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:12,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:12,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:12,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:12,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:02:12,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:12,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-12 14:02:12,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:02:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:12,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:02:12,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:13,074 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 368 proven. 2 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-10-12 14:02:13,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779156836] [2020-10-12 14:02:13,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:13,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:02:13,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099280323] [2020-10-12 14:02:13,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:02:13,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:13,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:02:13,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:02:13,077 INFO L87 Difference]: Start difference. First operand 1700 states and 2035 transitions. Second operand 10 states. [2020-10-12 14:02:15,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:15,545 INFO L93 Difference]: Finished difference Result 3171 states and 3861 transitions. [2020-10-12 14:02:15,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 14:02:15,546 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 414 [2020-10-12 14:02:15,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:15,553 INFO L225 Difference]: With dead ends: 3171 [2020-10-12 14:02:15,553 INFO L226 Difference]: Without dead ends: 1749 [2020-10-12 14:02:15,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-10-12 14:02:15,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2020-10-12 14:02:15,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1692. [2020-10-12 14:02:15,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1692 states. [2020-10-12 14:02:15,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 1905 transitions. [2020-10-12 14:02:15,596 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 1905 transitions. Word has length 414 [2020-10-12 14:02:15,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:15,597 INFO L479 AbstractCegarLoop]: Abstraction has 1692 states and 1905 transitions. [2020-10-12 14:02:15,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:02:15,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 1905 transitions. [2020-10-12 14:02:15,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2020-10-12 14:02:15,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:15,614 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:15,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:02:15,615 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:15,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:15,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1875618638, now seen corresponding path program 1 times [2020-10-12 14:02:15,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:15,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198742055] [2020-10-12 14:02:15,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:15,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:15,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:16,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:19,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:19,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:19,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:20,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:20,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 645 [2020-10-12 14:02:20,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:02:20,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 14:02:20,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-12 14:02:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 14:02:20,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:20,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:20,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:20,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:20,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:20,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:20,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:02:20,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:20,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:20,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:20,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:20,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:20,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:20,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:20,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:20,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:20,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:20,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:02:20,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:20,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:20,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:20,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:20,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:20,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:20,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:20,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:20,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:20,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:20,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:20,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:20,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:20,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:20,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:20,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:20,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:20,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:21,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:21,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:02:21,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:21,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:21,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:02:21,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:21,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:02:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:21,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:21,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:21,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-12 14:02:21,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:21,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:21,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:21,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:21,810 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2020-10-12 14:02:22,027 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2020-10-12 14:02:22,257 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2020-10-12 14:02:22,505 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 72 [2020-10-12 14:02:22,754 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2020-10-12 14:02:23,002 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2020-10-12 14:02:23,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2020-10-12 14:02:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:23,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:23,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:23,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 14:02:23,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:23,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:23,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-12 14:02:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:23,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:25,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 502 proven. 79 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2020-10-12 14:02:25,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198742055] [2020-10-12 14:02:25,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:25,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:25,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96125632] [2020-10-12 14:02:25,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:25,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:25,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:25,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:25,270 INFO L87 Difference]: Start difference. First operand 1692 states and 1905 transitions. Second operand 13 states. [2020-10-12 14:02:26,082 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2020-10-12 14:02:26,278 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2020-10-12 14:02:26,578 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2020-10-12 14:02:26,820 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 70 [2020-10-12 14:02:26,959 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-10-12 14:02:27,634 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 70 [2020-10-12 14:02:28,197 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 83 [2020-10-12 14:02:28,715 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2020-10-12 14:02:28,921 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2020-10-12 14:02:29,217 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2020-10-12 14:02:29,470 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 62 [2020-10-12 14:02:29,851 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 62 [2020-10-12 14:02:30,271 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 62 [2020-10-12 14:02:30,664 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2020-10-12 14:02:31,298 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 92 [2020-10-12 14:02:31,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:31,529 INFO L93 Difference]: Finished difference Result 3394 states and 3850 transitions. [2020-10-12 14:02:31,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:02:31,530 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 627 [2020-10-12 14:02:31,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:31,537 INFO L225 Difference]: With dead ends: 3394 [2020-10-12 14:02:31,537 INFO L226 Difference]: Without dead ends: 1740 [2020-10-12 14:02:31,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=258, Invalid=672, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:02:31,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2020-10-12 14:02:31,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1619. [2020-10-12 14:02:31,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1619 states. [2020-10-12 14:02:31,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 1833 transitions. [2020-10-12 14:02:31,579 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 1833 transitions. Word has length 627 [2020-10-12 14:02:31,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:31,580 INFO L479 AbstractCegarLoop]: Abstraction has 1619 states and 1833 transitions. [2020-10-12 14:02:31,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:31,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 1833 transitions. [2020-10-12 14:02:31,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2020-10-12 14:02:31,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:31,587 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:31,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:02:31,588 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:31,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:31,588 INFO L82 PathProgramCache]: Analyzing trace with hash 321216729, now seen corresponding path program 1 times [2020-10-12 14:02:31,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:31,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320718858] [2020-10-12 14:02:31,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:31,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:32,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:33,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:35,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:36,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:36,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 652 [2020-10-12 14:02:36,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:02:36,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 14:02:36,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:36,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:36,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-12 14:02:36,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-12 14:02:36,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:36,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:36,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:36,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:36,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:36,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:36,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:02:36,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:36,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:36,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:36,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:36,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:36,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:36,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:36,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:36,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:36,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:36,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:02:36,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:36,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:36,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:36,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:36,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:36,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:36,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:36,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:36,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:36,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:36,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:36,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:36,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:36,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:36,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:36,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:36,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:36,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:36,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 14:02:36,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:36,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:36,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:36,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 14:02:36,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:37,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:37,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:37,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:37,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:37,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:37,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-12 14:02:37,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:37,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:37,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:37,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:37,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:37,788 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-10-12 14:02:37,971 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54 [2020-10-12 14:02:38,159 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-12 14:02:38,372 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-10-12 14:02:38,599 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-10-12 14:02:38,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-10-12 14:02:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:38,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:39,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:39,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 14:02:39,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:39,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:02:39,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:39,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:39,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-12 14:02:39,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:39,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:40,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1144 backedges. 509 proven. 79 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2020-10-12 14:02:40,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320718858] [2020-10-12 14:02:40,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:40,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:40,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697466367] [2020-10-12 14:02:40,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:40,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:40,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:40,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:40,257 INFO L87 Difference]: Start difference. First operand 1619 states and 1833 transitions. Second operand 13 states. [2020-10-12 14:02:40,822 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-10-12 14:02:41,318 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-10-12 14:02:41,582 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-12 14:02:41,762 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2020-10-12 14:02:41,998 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2020-10-12 14:02:42,246 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 91 [2020-10-12 14:02:42,521 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2020-10-12 14:02:43,269 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-10-12 14:02:43,800 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-10-12 14:02:44,097 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2020-10-12 14:02:44,304 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2020-10-12 14:02:44,566 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 71 [2020-10-12 14:02:44,833 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2020-10-12 14:02:45,156 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2020-10-12 14:02:45,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:45,483 INFO L93 Difference]: Finished difference Result 3248 states and 3708 transitions. [2020-10-12 14:02:45,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:02:45,484 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 634 [2020-10-12 14:02:45,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:45,491 INFO L225 Difference]: With dead ends: 3248 [2020-10-12 14:02:45,491 INFO L226 Difference]: Without dead ends: 1794 [2020-10-12 14:02:45,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:02:45,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2020-10-12 14:02:45,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1780. [2020-10-12 14:02:45,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1780 states. [2020-10-12 14:02:45,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1780 states to 1780 states and 2002 transitions. [2020-10-12 14:02:45,534 INFO L78 Accepts]: Start accepts. Automaton has 1780 states and 2002 transitions. Word has length 634 [2020-10-12 14:02:45,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:45,535 INFO L479 AbstractCegarLoop]: Abstraction has 1780 states and 2002 transitions. [2020-10-12 14:02:45,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:45,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1780 states and 2002 transitions. [2020-10-12 14:02:45,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2020-10-12 14:02:45,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:45,542 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 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] [2020-10-12 14:02:45,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:02:45,543 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:45,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:45,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1285505465, now seen corresponding path program 1 times [2020-10-12 14:02:45,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:45,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307290210] [2020-10-12 14:02:45,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:45,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:45,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:45,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:48,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:48,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:49,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 668 [2020-10-12 14:02:50,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:02:50,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-12 14:02:50,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:50,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 366 [2020-10-12 14:02:50,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-12 14:02:50,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:50,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:02:50,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:50,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:50,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:02:50,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:02:50,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:50,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:50,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:50,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:50,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:50,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:02:50,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:50,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:50,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:50,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:02:50,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:51,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:51,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:51,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 14:02:51,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:51,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 14:02:51,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 14:02:51,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:51,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-10-12 14:02:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:51,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:51,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:51,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:51,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:51,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:51,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-10-12 14:02:51,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:51,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:51,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:51,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:51,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:52,328 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 49 [2020-10-12 14:02:52,533 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2020-10-12 14:02:52,753 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 57 [2020-10-12 14:02:52,979 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2020-10-12 14:02:53,224 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-10-12 14:02:53,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2020-10-12 14:02:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:53,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:53,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:53,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 14:02:53,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:53,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:02:53,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:53,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:53,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-12 14:02:53,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:53,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:55,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 525 proven. 79 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2020-10-12 14:02:55,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307290210] [2020-10-12 14:02:55,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:55,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:55,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903268817] [2020-10-12 14:02:55,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:55,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:55,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:55,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:55,076 INFO L87 Difference]: Start difference. First operand 1780 states and 2002 transitions. Second operand 13 states. [2020-10-12 14:02:55,821 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-10-12 14:02:56,053 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-10-12 14:02:56,435 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2020-10-12 14:02:56,668 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2020-10-12 14:02:56,964 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2020-10-12 14:02:57,313 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2020-10-12 14:02:57,614 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 88 [2020-10-12 14:02:57,980 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2020-10-12 14:02:58,578 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 58 [2020-10-12 14:02:59,058 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2020-10-12 14:02:59,301 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-10-12 14:02:59,653 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-10-12 14:02:59,962 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2020-10-12 14:03:00,295 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 68 [2020-10-12 14:03:00,680 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 73 [2020-10-12 14:03:01,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:01,235 INFO L93 Difference]: Finished difference Result 3580 states and 4068 transitions. [2020-10-12 14:03:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 14:03:01,236 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 650 [2020-10-12 14:03:01,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:01,243 INFO L225 Difference]: With dead ends: 3580 [2020-10-12 14:03:01,243 INFO L226 Difference]: Without dead ends: 1802 [2020-10-12 14:03:01,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=280, Invalid=712, Unknown=0, NotChecked=0, Total=992 [2020-10-12 14:03:01,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2020-10-12 14:03:01,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1780. [2020-10-12 14:03:01,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1780 states. [2020-10-12 14:03:01,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1780 states to 1780 states and 1992 transitions. [2020-10-12 14:03:01,287 INFO L78 Accepts]: Start accepts. Automaton has 1780 states and 1992 transitions. Word has length 650 [2020-10-12 14:03:01,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:01,288 INFO L479 AbstractCegarLoop]: Abstraction has 1780 states and 1992 transitions. [2020-10-12 14:03:01,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:03:01,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1780 states and 1992 transitions. [2020-10-12 14:03:01,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2020-10-12 14:03:01,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:01,296 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:01,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:03:01,296 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:01,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:01,297 INFO L82 PathProgramCache]: Analyzing trace with hash 2086747169, now seen corresponding path program 1 times [2020-10-12 14:03:01,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:01,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313274608] [2020-10-12 14:03:01,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:01,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:01,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:01,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:01,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:02,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:06,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:06,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 712 [2020-10-12 14:03:06,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:03:06,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-12 14:03:06,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:06,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:03:06,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-12 14:03:06,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 14:03:06,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:06,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:06,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:06,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:06,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:06,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:06,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:03:06,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:06,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:06,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:06,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:06,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:06,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:06,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:06,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:06,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:06,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:06,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:06,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:06,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:06,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:06,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:06,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:06,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:06,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:06,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:03:06,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:06,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:06,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:06,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 14:03:06,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:06,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:06,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:06,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:07,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:07,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:07,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-10-12 14:03:07,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:03:07,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:07,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 14:03:07,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:07,406 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-10-12 14:03:07,660 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2020-10-12 14:03:07,930 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2020-10-12 14:03:08,228 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2020-10-12 14:03:08,496 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2020-10-12 14:03:08,790 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2020-10-12 14:03:09,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-12 14:03:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:09,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:09,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:09,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:09,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:09,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:03:09,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:09,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:09,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 14:03:09,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:09,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:09,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-12 14:03:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:09,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:09,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:09,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 14:03:09,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:09,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:09,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:09,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:09,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-12 14:03:09,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:09,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 394 proven. 253 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2020-10-12 14:03:11,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313274608] [2020-10-12 14:03:11,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:11,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 14:03:11,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553704005] [2020-10-12 14:03:11,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 14:03:11,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:11,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 14:03:11,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-12 14:03:11,165 INFO L87 Difference]: Start difference. First operand 1780 states and 1992 transitions. Second operand 14 states. [2020-10-12 14:03:12,244 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 69 [2020-10-12 14:03:12,486 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 75 [2020-10-12 14:03:13,135 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 107 [2020-10-12 14:03:13,667 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 83 [2020-10-12 14:03:14,240 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 82 [2020-10-12 14:03:14,727 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 85 [2020-10-12 14:03:15,403 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 100 [2020-10-12 14:03:15,910 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 58 [2020-10-12 14:03:16,211 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2020-10-12 14:03:17,073 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 55 [2020-10-12 14:03:17,305 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 60 [2020-10-12 14:03:17,782 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 63 [2020-10-12 14:03:18,256 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 59 [2020-10-12 14:03:18,657 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 63 [2020-10-12 14:03:19,198 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 66 [2020-10-12 14:03:20,277 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-12 14:03:20,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:20,465 INFO L93 Difference]: Finished difference Result 3566 states and 4005 transitions. [2020-10-12 14:03:20,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:03:20,465 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 694 [2020-10-12 14:03:20,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:20,470 INFO L225 Difference]: With dead ends: 3566 [2020-10-12 14:03:20,471 INFO L226 Difference]: Without dead ends: 1909 [2020-10-12 14:03:20,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=278, Invalid=778, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 14:03:20,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2020-10-12 14:03:20,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1895. [2020-10-12 14:03:20,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1895 states. [2020-10-12 14:03:20,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1895 states to 1895 states and 2108 transitions. [2020-10-12 14:03:20,512 INFO L78 Accepts]: Start accepts. Automaton has 1895 states and 2108 transitions. Word has length 694 [2020-10-12 14:03:20,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:20,513 INFO L479 AbstractCegarLoop]: Abstraction has 1895 states and 2108 transitions. [2020-10-12 14:03:20,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 14:03:20,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1895 states and 2108 transitions. [2020-10-12 14:03:20,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 716 [2020-10-12 14:03:20,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:20,521 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:03:20,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:03:20,521 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:20,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:20,522 INFO L82 PathProgramCache]: Analyzing trace with hash -112699934, now seen corresponding path program 1 times [2020-10-12 14:03:20,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:20,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758448453] [2020-10-12 14:03:20,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:20,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:21,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:21,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:22,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:24,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:24,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:24,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:25,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:25,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 735 [2020-10-12 14:03:25,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 14:03:25,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 14:03:25,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:25,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:03:25,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 433 [2020-10-12 14:03:25,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:03:25,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:25,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:25,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:25,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:25,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:25,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:25,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:03:25,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:25,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:25,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:25,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:25,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:25,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:25,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:25,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:25,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:25,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:25,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:25,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:25,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:25,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:25,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:25,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:25,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:25,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:25,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:25,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:25,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:25,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:03:25,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:25,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:25,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:25,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:25,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:25,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:25,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:25,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:25,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:25,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:25,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:25,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:25,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:25,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:25,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:25,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:25,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:25,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:25,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:25,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:25,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:25,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:03:25,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:25,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:25,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:25,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 14:03:25,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:25,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:26,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:26,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:26,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:26,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:26,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-12 14:03:26,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:26,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:03:26,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:26,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:03:26,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:26,731 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-10-12 14:03:26,991 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2020-10-12 14:03:27,264 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2020-10-12 14:03:27,529 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2020-10-12 14:03:27,813 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2020-10-12 14:03:28,100 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2020-10-12 14:03:28,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2020-10-12 14:03:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:28,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:28,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:28,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 14:03:28,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:28,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:28,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:28,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:28,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-12 14:03:28,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:28,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:30,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 628 proven. 79 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2020-10-12 14:03:30,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758448453] [2020-10-12 14:03:30,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:30,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:03:30,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689891177] [2020-10-12 14:03:30,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:03:30,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:30,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:03:30,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:03:30,825 INFO L87 Difference]: Start difference. First operand 1895 states and 2108 transitions. Second operand 13 states. [2020-10-12 14:03:31,470 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2020-10-12 14:03:31,916 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2020-10-12 14:03:32,206 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 70 [2020-10-12 14:03:32,404 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2020-10-12 14:03:32,635 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2020-10-12 14:03:33,103 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2020-10-12 14:03:33,385 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 85 [2020-10-12 14:03:33,696 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 53 [2020-10-12 14:03:33,884 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-10-12 14:03:34,483 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 56 [2020-10-12 14:03:34,965 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 63 [2020-10-12 14:03:35,190 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 57 [2020-10-12 14:03:35,448 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 60 [2020-10-12 14:03:35,975 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 60 [2020-10-12 14:03:36,286 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 63 [2020-10-12 14:03:36,682 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 14:03:37,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:37,059 INFO L93 Difference]: Finished difference Result 3800 states and 4255 transitions. [2020-10-12 14:03:37,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:03:37,059 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 715 [2020-10-12 14:03:37,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:37,067 INFO L225 Difference]: With dead ends: 3800 [2020-10-12 14:03:37,067 INFO L226 Difference]: Without dead ends: 2088 [2020-10-12 14:03:37,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=271, Invalid=659, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:03:37,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2020-10-12 14:03:37,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2072. [2020-10-12 14:03:37,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2072 states. [2020-10-12 14:03:37,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 2289 transitions. [2020-10-12 14:03:37,115 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 2289 transitions. Word has length 715 [2020-10-12 14:03:37,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:37,116 INFO L479 AbstractCegarLoop]: Abstraction has 2072 states and 2289 transitions. [2020-10-12 14:03:37,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:03:37,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 2289 transitions. [2020-10-12 14:03:37,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2020-10-12 14:03:37,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:37,126 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:03:37,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:03:37,127 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:37,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:37,127 INFO L82 PathProgramCache]: Analyzing trace with hash -330156954, now seen corresponding path program 1 times [2020-10-12 14:03:37,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:37,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997627878] [2020-10-12 14:03:37,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:37,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:37,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:37,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:38,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:42,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:42,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 813 [2020-10-12 14:03:42,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:03:42,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 14:03:42,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:42,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:03:42,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-12 14:03:42,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 14:03:42,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:42,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:42,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:42,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:42,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:42,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:42,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:03:42,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:42,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:42,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:42,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:42,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:42,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:42,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:42,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:42,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:42,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:42,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:42,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:42,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:42,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:42,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:42,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:42,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:42,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:42,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:42,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:42,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:42,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:42,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:42,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:42,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:42,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:42,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:42,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:42,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:42,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:42,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:42,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:42,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 14:03:42,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:42,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 14:03:42,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 14:03:42,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:42,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 14:03:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:42,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:42,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:43,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:43,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:43,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:43,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 440 [2020-10-12 14:03:43,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:03:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:03:43,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:43,772 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-10-12 14:03:44,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-12 14:03:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:44,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:44,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:44,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 14:03:44,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:44,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:44,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:44,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:44,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-12 14:03:44,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:44,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:45,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1751 backedges. 706 proven. 79 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2020-10-12 14:03:45,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997627878] [2020-10-12 14:03:45,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:45,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:03:45,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702037876] [2020-10-12 14:03:45,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:03:45,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:45,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:03:45,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:03:45,357 INFO L87 Difference]: Start difference. First operand 2072 states and 2289 transitions. Second operand 13 states. [2020-10-12 14:03:45,876 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-12 14:03:46,362 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-10-12 14:03:46,521 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-10-12 14:03:46,673 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-12 14:03:46,910 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-12 14:03:47,145 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-10-12 14:03:47,915 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 46 [2020-10-12 14:03:48,444 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2020-10-12 14:03:48,613 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-10-12 14:03:48,777 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2020-10-12 14:03:49,032 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2020-10-12 14:03:49,270 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2020-10-12 14:03:49,644 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-12 14:03:49,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:49,832 INFO L93 Difference]: Finished difference Result 4144 states and 4599 transitions. [2020-10-12 14:03:49,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:03:49,833 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 793 [2020-10-12 14:03:49,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:49,840 INFO L225 Difference]: With dead ends: 4144 [2020-10-12 14:03:49,840 INFO L226 Difference]: Without dead ends: 2251 [2020-10-12 14:03:49,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:03:49,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2020-10-12 14:03:49,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 2243. [2020-10-12 14:03:49,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2243 states. [2020-10-12 14:03:49,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 2461 transitions. [2020-10-12 14:03:49,889 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 2461 transitions. Word has length 793 [2020-10-12 14:03:49,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:49,890 INFO L479 AbstractCegarLoop]: Abstraction has 2243 states and 2461 transitions. [2020-10-12 14:03:49,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:03:49,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 2461 transitions. [2020-10-12 14:03:49,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 893 [2020-10-12 14:03:49,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:49,901 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:49,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:03:49,901 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:49,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:49,902 INFO L82 PathProgramCache]: Analyzing trace with hash -709238471, now seen corresponding path program 1 times [2020-10-12 14:03:49,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:49,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107156761] [2020-10-12 14:03:49,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:50,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:50,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:50,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:51,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:55,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:55,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 914 [2020-10-12 14:03:55,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:03:55,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 14:03:55,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:03:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 612 [2020-10-12 14:03:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 14:03:55,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:55,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:55,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:55,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:55,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:55,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:55,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:03:55,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:55,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:55,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:55,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:55,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:55,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:55,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:55,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:55,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:55,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:55,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:55,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:55,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:55,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:55,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:55,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:55,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:55,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:55,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:55,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:55,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:55,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:55,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:55,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:55,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:55,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:55,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:55,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:55,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:03:55,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:55,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:55,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:55,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:55,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:55,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:55,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:55,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:55,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:55,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:55,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:55,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:55,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:55,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:55,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:55,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:55,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:55,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:55,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:55,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:55,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:55,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 14:03:55,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:55,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:55,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:55,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 14:03:55,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:55,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:55,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:55,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:55,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:55,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:55,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:55,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-12 14:03:55,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:55,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:03:55,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:55,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:03:55,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:56,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2020-10-12 14:03:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:56,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:56,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:56,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 14:03:56,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:56,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:03:56,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:56,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:56,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-12 14:03:56,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:56,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:58,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2286 backedges. 843 proven. 79 refuted. 0 times theorem prover too weak. 1364 trivial. 0 not checked. [2020-10-12 14:03:58,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107156761] [2020-10-12 14:03:58,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:58,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:03:58,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792726051] [2020-10-12 14:03:58,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:03:58,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:58,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:03:58,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:03:58,137 INFO L87 Difference]: Start difference. First operand 2243 states and 2461 transitions. Second operand 13 states. [2020-10-12 14:03:58,752 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-12 14:03:58,955 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-12 14:03:59,106 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-12 14:03:59,367 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-10-12 14:03:59,587 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-12 14:03:59,893 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2020-10-12 14:04:00,691 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-10-12 14:04:00,880 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2020-10-12 14:04:01,101 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-10-12 14:04:01,273 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-10-12 14:04:01,602 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2020-10-12 14:04:01,893 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2020-10-12 14:04:02,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:02,327 INFO L93 Difference]: Finished difference Result 4492 states and 4953 transitions. [2020-10-12 14:04:02,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:04:02,328 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 892 [2020-10-12 14:04:02,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:02,336 INFO L225 Difference]: With dead ends: 4492 [2020-10-12 14:04:02,337 INFO L226 Difference]: Without dead ends: 2331 [2020-10-12 14:04:02,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:04:02,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2020-10-12 14:04:02,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2317. [2020-10-12 14:04:02,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2317 states. [2020-10-12 14:04:02,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 2536 transitions. [2020-10-12 14:04:02,387 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 2536 transitions. Word has length 892 [2020-10-12 14:04:02,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:02,388 INFO L479 AbstractCegarLoop]: Abstraction has 2317 states and 2536 transitions. [2020-10-12 14:04:02,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:04:02,388 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 2536 transitions. [2020-10-12 14:04:02,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2020-10-12 14:04:02,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:02,401 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:04:02,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:04:02,402 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:02,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:02,402 INFO L82 PathProgramCache]: Analyzing trace with hash -548370447, now seen corresponding path program 1 times [2020-10-12 14:04:02,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:02,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777258691] [2020-10-12 14:04:02,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:02,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:02,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:05,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:07,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:07,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:07,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 992 [2020-10-12 14:04:07,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:04:07,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-12 14:04:07,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:07,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 14:04:07,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:04:07,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 14:04:07,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:07,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:07,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:07,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:07,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:07,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:07,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:04:07,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:07,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:07,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:07,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:07,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:07,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:07,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:07,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:07,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:07,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:07,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:04:07,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:07,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:07,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:07,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:07,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:07,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:07,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:07,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:07,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:07,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:07,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:04:07,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:07,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:07,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:07,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:07,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:07,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:07,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:04:07,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:07,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:04:07,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:07,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:07,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:07,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:04:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:07,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:07,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:07,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:04:07,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:07,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:04:07,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:07,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:07,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:07,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:07,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:08,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:04:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:08,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:08,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:08,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:04:08,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:08,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:04:08,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:08,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:08,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:08,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:08,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:08,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:04:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:08,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:08,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:08,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:04:08,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:08,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:04:08,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:08,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:08,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:08,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:04:08,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:08,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:04:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:08,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:08,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:08,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:04:08,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:08,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-10-12 14:04:08,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:04:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:08,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:04:08,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:04:08,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:04:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:08,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:08,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:08,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:08,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 14:04:08,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:04:08,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 14:04:08,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:08,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:08,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:08,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 14:04:08,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:09,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 1337 proven. 70 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2020-10-12 14:04:09,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777258691] [2020-10-12 14:04:09,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:09,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:04:09,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715648872] [2020-10-12 14:04:09,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:04:09,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:09,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:04:09,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:04:09,418 INFO L87 Difference]: Start difference. First operand 2317 states and 2536 transitions. Second operand 8 states. [2020-10-12 14:04:11,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:11,710 INFO L93 Difference]: Finished difference Result 5321 states and 6059 transitions. [2020-10-12 14:04:11,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:04:11,722 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 968 [2020-10-12 14:04:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:11,739 INFO L225 Difference]: With dead ends: 5321 [2020-10-12 14:04:11,740 INFO L226 Difference]: Without dead ends: 3194 [2020-10-12 14:04:11,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:04:11,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2020-10-12 14:04:11,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 3071. [2020-10-12 14:04:11,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3071 states. [2020-10-12 14:04:11,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 3521 transitions. [2020-10-12 14:04:11,810 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 3521 transitions. Word has length 968 [2020-10-12 14:04:11,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:11,811 INFO L479 AbstractCegarLoop]: Abstraction has 3071 states and 3521 transitions. [2020-10-12 14:04:11,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:04:11,811 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 3521 transitions. [2020-10-12 14:04:11,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 972 [2020-10-12 14:04:11,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:11,827 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:04:11,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:04:11,827 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:11,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:11,828 INFO L82 PathProgramCache]: Analyzing trace with hash 220387350, now seen corresponding path program 1 times [2020-10-12 14:04:11,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:11,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213770299] [2020-10-12 14:04:11,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:12,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:12,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:15,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:15,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:15,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 995 [2020-10-12 14:04:15,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:04:15,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3889 [2020-10-12 14:04:15,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:15,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:15,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 956 [2020-10-12 14:04:15,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 14:04:15,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:16,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:16,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:16,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:16,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:16,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:16,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:04:16,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:16,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:16,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:16,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:16,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:16,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:16,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:16,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:16,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:16,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:16,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:16,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:16,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:16,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:16,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:16,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:16,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:16,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:16,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:16,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:16,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:16,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:16,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:16,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:16,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:16,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:16,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:16,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:16,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:16,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:16,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:04:16,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:16,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:04:16,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:16,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:16,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:16,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:16,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:16,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:04:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:16,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:16,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:16,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:04:16,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:16,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:04:16,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:16,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:16,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:16,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:16,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:16,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:04:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:16,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:16,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:16,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:04:16,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:16,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:04:16,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:16,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:16,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:04:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:16,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:16,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:16,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:04:16,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:16,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:04:16,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:16,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:16,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:16,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:16,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:16,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:04:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:16,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:16,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:16,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:04:16,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:16,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:04:16,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:16,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:16,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:16,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:16,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:16,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:04:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:16,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:16,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:16,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:04:16,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:16,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:04:16,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:16,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:16,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:16,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 14:04:16,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:16,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2866 backedges. 269 proven. 8 refuted. 0 times theorem prover too weak. 2589 trivial. 0 not checked. [2020-10-12 14:04:16,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [213770299] [2020-10-12 14:04:16,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:16,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:04:16,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369191003] [2020-10-12 14:04:16,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:04:16,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:16,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:04:16,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:04:16,712 INFO L87 Difference]: Start difference. First operand 3071 states and 3521 transitions. Second operand 5 states. [2020-10-12 14:04:18,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:18,068 INFO L93 Difference]: Finished difference Result 6506 states and 7622 transitions. [2020-10-12 14:04:18,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:04:18,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 971 [2020-10-12 14:04:18,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:18,079 INFO L225 Difference]: With dead ends: 6506 [2020-10-12 14:04:18,079 INFO L226 Difference]: Without dead ends: 3067 [2020-10-12 14:04:18,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:04:18,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3067 states. [2020-10-12 14:04:18,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3067 to 3063. [2020-10-12 14:04:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3063 states. [2020-10-12 14:04:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3063 states to 3063 states and 3457 transitions. [2020-10-12 14:04:18,135 INFO L78 Accepts]: Start accepts. Automaton has 3063 states and 3457 transitions. Word has length 971 [2020-10-12 14:04:18,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:18,136 INFO L479 AbstractCegarLoop]: Abstraction has 3063 states and 3457 transitions. [2020-10-12 14:04:18,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:04:18,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3063 states and 3457 transitions. [2020-10-12 14:04:18,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1070 [2020-10-12 14:04:18,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:18,152 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, 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, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-12 14:04:18,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:04:18,152 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:18,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:18,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1913334486, now seen corresponding path program 1 times [2020-10-12 14:04:18,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:18,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161371312] [2020-10-12 14:04:18,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:18,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:18,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:19,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:20,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:23,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:23,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1095 [2020-10-12 14:04:23,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:04:23,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-12 14:04:23,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:23,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:23,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 968 [2020-10-12 14:04:23,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 14:04:23,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:23,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:23,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:23,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:23,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:23,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:23,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:04:23,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:23,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:23,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:23,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:23,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:23,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:23,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:23,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:23,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:23,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:23,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:04:23,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:23,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:23,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:23,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:23,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:23,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:23,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:23,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:23,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:23,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:23,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:23,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:23,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:23,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:23,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:23,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:23,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:04:23,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:23,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:23,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:23,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:23,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:23,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:23,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:23,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:04:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:23,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:23,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:23,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:04:23,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:23,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:04:23,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:23,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:23,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:23,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:23,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:23,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:04:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:23,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:23,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:23,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:04:23,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:23,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:04:23,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:23,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:23,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:23,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:23,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:23,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:04:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:23,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:23,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:23,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:04:23,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:23,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:04:23,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:23,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:23,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:23,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:23,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:23,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:04:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:23,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:23,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:23,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:04:23,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:23,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:04:23,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:23,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:23,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:04:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:23,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:23,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:23,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:04:23,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:23,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:04:23,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 14:04:23,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:23,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2020-10-12 14:04:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:23,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:23,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:24,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:24,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:04:24,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:04:24,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-12 14:04:24,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:24,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:24,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:24,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:04:24,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:24,841 INFO L134 CoverageAnalysis]: Checked inductivity of 3631 backedges. 972 proven. 2 refuted. 0 times theorem prover too weak. 2657 trivial. 0 not checked. [2020-10-12 14:04:24,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161371312] [2020-10-12 14:04:24,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:24,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:04:24,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801506389] [2020-10-12 14:04:24,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 14:04:24,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:24,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 14:04:24,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:04:24,843 INFO L87 Difference]: Start difference. First operand 3063 states and 3457 transitions. Second operand 6 states. [2020-10-12 14:04:25,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:25,967 INFO L93 Difference]: Finished difference Result 5961 states and 6768 transitions. [2020-10-12 14:04:25,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:04:25,968 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1069 [2020-10-12 14:04:25,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:25,977 INFO L225 Difference]: With dead ends: 5961 [2020-10-12 14:04:25,977 INFO L226 Difference]: Without dead ends: 3073 [2020-10-12 14:04:25,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:04:25,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3073 states. [2020-10-12 14:04:26,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3073 to 3059. [2020-10-12 14:04:26,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3059 states. [2020-10-12 14:04:26,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3059 states to 3059 states and 3437 transitions. [2020-10-12 14:04:26,042 INFO L78 Accepts]: Start accepts. Automaton has 3059 states and 3437 transitions. Word has length 1069 [2020-10-12 14:04:26,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:26,043 INFO L479 AbstractCegarLoop]: Abstraction has 3059 states and 3437 transitions. [2020-10-12 14:04:26,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 14:04:26,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3059 states and 3437 transitions. [2020-10-12 14:04:26,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1087 [2020-10-12 14:04:26,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:26,061 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, 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, 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, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:04:26,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 14:04:26,061 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:26,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:26,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1258253139, now seen corresponding path program 1 times [2020-10-12 14:04:26,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:26,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [376705154] [2020-10-12 14:04:26,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:26,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:26,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:27,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:31,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:31,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1112 [2020-10-12 14:04:31,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:04:31,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4913 [2020-10-12 14:04:31,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 985 [2020-10-12 14:04:31,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 14:04:31,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:31,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:31,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:31,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:31,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:31,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:31,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:04:31,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:31,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:31,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:31,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:31,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:31,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:31,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:31,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:04:31,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:31,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:31,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:31,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:31,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:31,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:31,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:31,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:04:31,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:31,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:31,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:31,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:31,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:31,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:31,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:31,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:31,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:04:31,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:31,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:31,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:31,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:31,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:31,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:31,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:31,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:04:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:31,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:31,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:31,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:04:31,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:31,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:04:31,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:31,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:31,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:04:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:31,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:31,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:31,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:04:31,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:31,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:04:31,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:31,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:31,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:04:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:31,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:31,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:31,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:04:31,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:31,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:04:31,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:31,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:31,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:31,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:31,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:31,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:04:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:31,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:31,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:31,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:04:31,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:31,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:04:31,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:31,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:31,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:31,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:31,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:31,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:04:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:31,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:31,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:31,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:04:31,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:31,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:04:31,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:31,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:31,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:31,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 14:04:31,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:31,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-12 14:04:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:31,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:31,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:31,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:04:31,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:31,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:04:31,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:31,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:31,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:31,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:04:31,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:32,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3711 backedges. 972 proven. 2 refuted. 0 times theorem prover too weak. 2737 trivial. 0 not checked. [2020-10-12 14:04:32,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [376705154] [2020-10-12 14:04:32,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:32,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:04:32,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452289242] [2020-10-12 14:04:32,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:04:32,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:32,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:04:32,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:04:32,107 INFO L87 Difference]: Start difference. First operand 3059 states and 3437 transitions. Second operand 8 states. [2020-10-12 14:04:34,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:34,408 INFO L93 Difference]: Finished difference Result 7592 states and 8783 transitions. [2020-10-12 14:04:34,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:04:34,410 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1086 [2020-10-12 14:04:34,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:34,421 INFO L225 Difference]: With dead ends: 7592 [2020-10-12 14:04:34,422 INFO L226 Difference]: Without dead ends: 4723 [2020-10-12 14:04:34,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-12 14:04:34,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4723 states. [2020-10-12 14:04:34,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4723 to 4357. [2020-10-12 14:04:34,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4357 states. [2020-10-12 14:04:34,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4357 states to 4357 states and 5026 transitions. [2020-10-12 14:04:34,512 INFO L78 Accepts]: Start accepts. Automaton has 4357 states and 5026 transitions. Word has length 1086 [2020-10-12 14:04:34,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:34,513 INFO L479 AbstractCegarLoop]: Abstraction has 4357 states and 5026 transitions. [2020-10-12 14:04:34,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:04:34,514 INFO L276 IsEmpty]: Start isEmpty. Operand 4357 states and 5026 transitions. [2020-10-12 14:04:34,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1105 [2020-10-12 14:04:34,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:34,536 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, 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, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:04:34,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 14:04:34,536 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:34,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:34,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1583628047, now seen corresponding path program 1 times [2020-10-12 14:04:34,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:34,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [261638753] [2020-10-12 14:04:34,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:34,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:35,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:37,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:37,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:39,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:39,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1130 [2020-10-12 14:04:39,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:04:39,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 14:04:39,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:39,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 14:04:39,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:04:39,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-12 14:04:39,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:39,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:39,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:39,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:39,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:39,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:39,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:04:39,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:39,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:39,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:39,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:39,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:39,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:39,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:39,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:39,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:39,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:39,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:04:39,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:39,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:39,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:39,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:39,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:39,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:39,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:39,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:39,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:39,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:39,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:04:39,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:39,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:39,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:39,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:39,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:40,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:40,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:40,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:40,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:04:40,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:40,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:04:40,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:40,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:40,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:40,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:40,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:40,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:04:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:40,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:40,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:40,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:04:40,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:40,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:04:40,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:40,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:40,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:40,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:04:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:40,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:40,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:40,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:04:40,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:40,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:04:40,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:40,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:40,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:04:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:40,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:40,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:40,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:04:40,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:40,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:04:40,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:04:40,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:40,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:04:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:40,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:40,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:40,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:04:40,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-12 14:04:40,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:04:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:04:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:40,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:04:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:40,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:40,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:40,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:40,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-12 14:04:40,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:04:40,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-12 14:04:40,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:40,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:04:40,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:40,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-12 14:04:40,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:41,034 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-10-12 14:04:41,181 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-10-12 14:04:41,343 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-12 14:04:41,508 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-10-12 14:04:41,658 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-10-12 14:04:41,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 987 [2020-10-12 14:04:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:41,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:41,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:41,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:04:41,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:41,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:04:41,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:41,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:41,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 14:04:41,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:41,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:43,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3752 backedges. 1675 proven. 230 refuted. 0 times theorem prover too weak. 1847 trivial. 0 not checked. [2020-10-12 14:04:43,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [261638753] [2020-10-12 14:04:43,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:43,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-12 14:04:43,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696262275] [2020-10-12 14:04:43,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 14:04:43,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:43,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 14:04:43,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-10-12 14:04:43,396 INFO L87 Difference]: Start difference. First operand 4357 states and 5026 transitions. Second operand 16 states. [2020-10-12 14:04:44,204 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-10-12 14:04:44,398 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-10-12 14:04:44,756 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-10-12 14:04:45,014 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-12 14:04:45,268 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2020-10-12 14:04:45,598 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-10-12 14:04:45,859 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 82 [2020-10-12 14:04:46,411 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2020-10-12 14:04:46,733 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2020-10-12 14:04:47,061 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-10-12 14:04:47,208 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2020-10-12 14:04:47,416 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-10-12 14:04:47,593 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-12 14:04:47,867 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 72 [2020-10-12 14:04:48,116 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 80 [2020-10-12 14:04:49,248 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 47 [2020-10-12 14:04:49,430 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2020-10-12 14:04:49,751 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-10-12 14:04:49,973 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2020-10-12 14:04:50,246 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2020-10-12 14:04:50,493 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 62 [2020-10-12 14:04:50,949 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2020-10-12 14:04:51,169 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2020-10-12 14:04:51,456 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2020-10-12 14:04:51,676 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2020-10-12 14:04:52,217 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2020-10-12 14:04:52,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:52,671 INFO L93 Difference]: Finished difference Result 8538 states and 9899 transitions. [2020-10-12 14:04:52,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-12 14:04:52,679 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 1104 [2020-10-12 14:04:52,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:52,690 INFO L225 Difference]: With dead ends: 8538 [2020-10-12 14:04:52,690 INFO L226 Difference]: Without dead ends: 4305 [2020-10-12 14:04:52,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=597, Invalid=2159, Unknown=0, NotChecked=0, Total=2756 [2020-10-12 14:04:52,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4305 states. [2020-10-12 14:04:52,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4305 to 4293. [2020-10-12 14:04:52,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4293 states. [2020-10-12 14:04:52,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4293 states to 4293 states and 4956 transitions. [2020-10-12 14:04:52,773 INFO L78 Accepts]: Start accepts. Automaton has 4293 states and 4956 transitions. Word has length 1104 [2020-10-12 14:04:52,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:52,775 INFO L479 AbstractCegarLoop]: Abstraction has 4293 states and 4956 transitions. [2020-10-12 14:04:52,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 14:04:52,775 INFO L276 IsEmpty]: Start isEmpty. Operand 4293 states and 4956 transitions. [2020-10-12 14:04:52,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1223 [2020-10-12 14:04:52,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:52,799 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:04:52,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 14:04:52,800 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:52,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:52,801 INFO L82 PathProgramCache]: Analyzing trace with hash -2062068307, now seen corresponding path program 1 times [2020-10-12 14:04:52,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:52,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356278384] [2020-10-12 14:04:52,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:53,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:53,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:54,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:56,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:58,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:58,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1250 [2020-10-12 14:04:58,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:04:58,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 14:04:58,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 14:04:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:04:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 434 [2020-10-12 14:04:58,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:58,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:58,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:58,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:58,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:58,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:58,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:04:58,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:58,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:58,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:58,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:58,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:58,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:58,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:58,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:58,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:58,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:58,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:04:58,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:58,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:58,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:58,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:58,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:58,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:58,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:58,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:58,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:58,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:58,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:58,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:58,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:58,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:58,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:58,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:58,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:58,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:58,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:58,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:04:58,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:58,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:58,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:58,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:58,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:58,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:58,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:58,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:04:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:58,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:58,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:58,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:04:58,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:58,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:04:58,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:58,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:58,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:58,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:58,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:58,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:04:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:58,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:58,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:58,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:04:58,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:58,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:04:58,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:58,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:58,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:58,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:58,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:58,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:04:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:58,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:58,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:58,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:04:58,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:58,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:04:58,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:58,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:58,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:58,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:04:58,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:58,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:04:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:58,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:58,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:58,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:04:58,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:58,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-12 14:04:58,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:04:58,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:58,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:04:58,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:58,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:04:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:58,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:58,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:58,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:04:58,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:58,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 14:04:58,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:58,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:58,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:58,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 14:04:58,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:58,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:04:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:58,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:58,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:58,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-12 14:04:58,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:58,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 14:04:58,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:58,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:58,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:58,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-12 14:04:58,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:59,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1105 [2020-10-12 14:04:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:59,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:59,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:59,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:04:59,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:59,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:04:59,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:59,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:59,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 14:04:59,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:59,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:00,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4717 backedges. 2255 proven. 602 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-10-12 14:05:00,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356278384] [2020-10-12 14:05:00,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:05:00,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 14:05:00,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035688100] [2020-10-12 14:05:00,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 14:05:00,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:05:00,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 14:05:00,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:05:00,460 INFO L87 Difference]: Start difference. First operand 4293 states and 4956 transitions. Second operand 11 states. [2020-10-12 14:05:03,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:05:03,661 INFO L93 Difference]: Finished difference Result 8406 states and 9739 transitions. [2020-10-12 14:05:03,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 14:05:03,668 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1222 [2020-10-12 14:05:03,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:05:03,680 INFO L225 Difference]: With dead ends: 8406 [2020-10-12 14:05:03,681 INFO L226 Difference]: Without dead ends: 4303 [2020-10-12 14:05:03,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-12 14:05:03,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4303 states. [2020-10-12 14:05:03,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4303 to 4293. [2020-10-12 14:05:03,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4293 states. [2020-10-12 14:05:03,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4293 states to 4293 states and 4948 transitions. [2020-10-12 14:05:03,766 INFO L78 Accepts]: Start accepts. Automaton has 4293 states and 4948 transitions. Word has length 1222 [2020-10-12 14:05:03,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:05:03,768 INFO L479 AbstractCegarLoop]: Abstraction has 4293 states and 4948 transitions. [2020-10-12 14:05:03,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 14:05:03,768 INFO L276 IsEmpty]: Start isEmpty. Operand 4293 states and 4948 transitions. [2020-10-12 14:05:03,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1233 [2020-10-12 14:05:03,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:05:03,787 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:05:03,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 14:05:03,788 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:05:03,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:05:03,788 INFO L82 PathProgramCache]: Analyzing trace with hash -110554527, now seen corresponding path program 1 times [2020-10-12 14:05:03,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:05:03,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544440936] [2020-10-12 14:05:03,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:05:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:04,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:04,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:06,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:06,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1260 [2020-10-12 14:05:06,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:05:06,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2729 [2020-10-12 14:05:06,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:05:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1221 [2020-10-12 14:05:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 14:05:06,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:06,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:05:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:06,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:06,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:06,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:05:06,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:06,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:05:06,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:06,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:06,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:05:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:06,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:06,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:06,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:05:06,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:06,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:05:06,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:06,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:06,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:06,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:06,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:06,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:05:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:06,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:06,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:06,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:05:06,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:06,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:05:06,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:06,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:06,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:06,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:06,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:06,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:05:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:07,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:07,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:07,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:05:07,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:07,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:05:07,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:07,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:07,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:07,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:05:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:07,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:07,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:07,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:05:07,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:07,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:05:07,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:07,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:07,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:07,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:07,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:07,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:05:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:07,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:07,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:07,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:05:07,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:07,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:05:07,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:07,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:07,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:07,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:07,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:07,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:05:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:07,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:07,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:07,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:05:07,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:07,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:05:07,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:07,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:07,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:07,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:07,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:07,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:05:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:07,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:07,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:07,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:05:07,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:07,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:05:07,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:07,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:07,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:07,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:07,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:07,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:05:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:07,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:07,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:07,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:05:07,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:07,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:05:07,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:07,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:07,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:07,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:07,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:07,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:05:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:07,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:07,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:07,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:05:07,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:07,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:05:07,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:07,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:07,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:07,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:07,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:07,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:05:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:07,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:07,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:07,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:05:07,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:07,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:05:07,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:07,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:05:07,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:07,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 14:05:07,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:08,078 INFO L134 CoverageAnalysis]: Checked inductivity of 4737 backedges. 337 proven. 10 refuted. 0 times theorem prover too weak. 4390 trivial. 0 not checked. [2020-10-12 14:05:08,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544440936] [2020-10-12 14:05:08,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:05:08,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:05:08,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972297933] [2020-10-12 14:05:08,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:05:08,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:05:08,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:05:08,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:05:08,080 INFO L87 Difference]: Start difference. First operand 4293 states and 4948 transitions. Second operand 5 states. [2020-10-12 14:05:09,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:05:09,458 INFO L93 Difference]: Finished difference Result 9312 states and 10836 transitions. [2020-10-12 14:05:09,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:05:09,459 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1232 [2020-10-12 14:05:09,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:05:09,474 INFO L225 Difference]: With dead ends: 9312 [2020-10-12 14:05:09,474 INFO L226 Difference]: Without dead ends: 5209 [2020-10-12 14:05:09,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:05:09,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2020-10-12 14:05:09,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 4657. [2020-10-12 14:05:09,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4657 states. [2020-10-12 14:05:09,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4657 states to 4657 states and 5366 transitions. [2020-10-12 14:05:09,570 INFO L78 Accepts]: Start accepts. Automaton has 4657 states and 5366 transitions. Word has length 1232 [2020-10-12 14:05:09,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:05:09,571 INFO L479 AbstractCegarLoop]: Abstraction has 4657 states and 5366 transitions. [2020-10-12 14:05:09,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:05:09,572 INFO L276 IsEmpty]: Start isEmpty. Operand 4657 states and 5366 transitions. [2020-10-12 14:05:09,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1252 [2020-10-12 14:05:09,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:05:09,593 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:05:09,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 14:05:09,593 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:05:09,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:05:09,594 INFO L82 PathProgramCache]: Analyzing trace with hash -141614114, now seen corresponding path program 1 times [2020-10-12 14:05:09,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:05:09,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646841230] [2020-10-12 14:05:09,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:05:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:10,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:10,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:12,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1279 [2020-10-12 14:05:12,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:05:12,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2148 [2020-10-12 14:05:12,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:12,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:05:12,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1240 [2020-10-12 14:05:12,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 14:05:12,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:12,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:05:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:12,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:12,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:05:12,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:12,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:05:12,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:12,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:12,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:12,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:12,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:12,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:05:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:12,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:12,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:05:12,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:12,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:05:12,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:12,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:12,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:05:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:12,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:12,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:05:12,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:12,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:05:12,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:12,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:12,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:12,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:12,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:12,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:05:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:12,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:12,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:05:12,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:12,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:05:12,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:12,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:12,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:12,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:12,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:12,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:05:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:12,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:12,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:05:12,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:12,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:05:12,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:12,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:12,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:12,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:12,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:12,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:05:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:12,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:12,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:05:12,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:12,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:05:12,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:12,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:12,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:12,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:12,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:12,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:05:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:12,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:12,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:05:12,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:12,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:05:12,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:12,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:12,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:12,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:05:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:12,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:12,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:05:12,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:12,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:05:12,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:12,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:12,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:12,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:12,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:12,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:05:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:12,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:12,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:05:12,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:12,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:05:12,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:12,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:12,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:12,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:12,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:12,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:05:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:12,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:12,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:05:12,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:12,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:05:12,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:12,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:12,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:05:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:12,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:12,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-12 14:05:12,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:12,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 14:05:12,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:12,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:05:12,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:12,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-12 14:05:12,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:13,260 INFO L134 CoverageAnalysis]: Checked inductivity of 4870 backedges. 337 proven. 10 refuted. 0 times theorem prover too weak. 4523 trivial. 0 not checked. [2020-10-12 14:05:13,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646841230] [2020-10-12 14:05:13,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:05:13,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:05:13,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102960416] [2020-10-12 14:05:13,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:05:13,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:05:13,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:05:13,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:05:13,262 INFO L87 Difference]: Start difference. First operand 4657 states and 5366 transitions. Second operand 5 states. [2020-10-12 14:05:14,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:05:14,452 INFO L93 Difference]: Finished difference Result 9308 states and 10742 transitions. [2020-10-12 14:05:14,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:05:14,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1251 [2020-10-12 14:05:14,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:05:14,474 INFO L225 Difference]: With dead ends: 9308 [2020-10-12 14:05:14,474 INFO L226 Difference]: Without dead ends: 4841 [2020-10-12 14:05:14,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:05:14,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2020-10-12 14:05:14,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 4291. [2020-10-12 14:05:14,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4291 states. [2020-10-12 14:05:14,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4291 states to 4291 states and 4799 transitions. [2020-10-12 14:05:14,563 INFO L78 Accepts]: Start accepts. Automaton has 4291 states and 4799 transitions. Word has length 1251 [2020-10-12 14:05:14,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:05:14,564 INFO L479 AbstractCegarLoop]: Abstraction has 4291 states and 4799 transitions. [2020-10-12 14:05:14,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:05:14,564 INFO L276 IsEmpty]: Start isEmpty. Operand 4291 states and 4799 transitions. [2020-10-12 14:05:14,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1322 [2020-10-12 14:05:14,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:05:14,590 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:05:14,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 14:05:14,591 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:05:14,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:05:14,592 INFO L82 PathProgramCache]: Analyzing trace with hash 878598794, now seen corresponding path program 1 times [2020-10-12 14:05:14,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:05:14,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588814835] [2020-10-12 14:05:14,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:05:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:15,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking...