/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/Problem01_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 11:03:08,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 11:03:08,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 11:03:08,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 11:03:08,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 11:03:08,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 11:03:08,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 11:03:08,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 11:03:08,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 11:03:08,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 11:03:08,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 11:03:08,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 11:03:08,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 11:03:08,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 11:03:08,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 11:03:08,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 11:03:08,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 11:03:08,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 11:03:08,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 11:03:08,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 11:03:08,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 11:03:08,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 11:03:08,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 11:03:08,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 11:03:08,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 11:03:08,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 11:03:08,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 11:03:08,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 11:03:08,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 11:03:08,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 11:03:08,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 11:03:08,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 11:03:08,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 11:03:08,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 11:03:08,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 11:03:08,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 11:03:08,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 11:03:08,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 11:03:08,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 11:03:08,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 11:03:08,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 11:03:08,476 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 11:03:08,498 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 11:03:08,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 11:03:08,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 11:03:08,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 11:03:08,500 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 11:03:08,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 11:03:08,501 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 11:03:08,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 11:03:08,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 11:03:08,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 11:03:08,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 11:03:08,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 11:03:08,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 11:03:08,502 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 11:03:08,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 11:03:08,502 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 11:03:08,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 11:03:08,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 11:03:08,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 11:03:08,503 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 11:03:08,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 11:03:08,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:03:08,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 11:03:08,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 11:03:08,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 11:03:08,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 11:03:08,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 11:03:08,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 11:03:08,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 11:03:08,505 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 11:03:08,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 11:03:08,819 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 11:03:08,823 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 11:03:08,824 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 11:03:08,825 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 11:03:08,825 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label09.c [2020-10-12 11:03:08,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/662c92f8b/f2d17a8015fd44dba74bd176c2732e46/FLAG9b2d6df0a [2020-10-12 11:03:09,448 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 11:03:09,449 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label09.c [2020-10-12 11:03:09,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/662c92f8b/f2d17a8015fd44dba74bd176c2732e46/FLAG9b2d6df0a [2020-10-12 11:03:09,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/662c92f8b/f2d17a8015fd44dba74bd176c2732e46 [2020-10-12 11:03:09,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 11:03:09,649 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 11:03:09,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 11:03:09,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 11:03:09,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 11:03:09,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:03:09" (1/1) ... [2020-10-12 11:03:09,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44cc83f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:09, skipping insertion in model container [2020-10-12 11:03:09,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:03:09" (1/1) ... [2020-10-12 11:03:09,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 11:03:09,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 11:03:10,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:03:10,114 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 11:03:10,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:03:10,389 INFO L208 MainTranslator]: Completed translation [2020-10-12 11:03:10,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:10 WrapperNode [2020-10-12 11:03:10,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 11:03:10,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 11:03:10,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 11:03:10,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 11:03:10,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:10" (1/1) ... [2020-10-12 11:03:10,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:10" (1/1) ... [2020-10-12 11:03:10,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:10" (1/1) ... [2020-10-12 11:03:10,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:10" (1/1) ... [2020-10-12 11:03:10,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:10" (1/1) ... [2020-10-12 11:03:10,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:10" (1/1) ... [2020-10-12 11:03:10,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:10" (1/1) ... [2020-10-12 11:03:10,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 11:03:10,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 11:03:10,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 11:03:10,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 11:03:10,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:10" (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 11:03:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 11:03:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 11:03:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 11:03:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 11:03:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 11:03:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 11:03:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 11:03:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 11:03:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 11:03:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 11:03:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 11:03:11,785 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 11:03:11,785 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 11:03:11,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:03:11 BoogieIcfgContainer [2020-10-12 11:03:11,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 11:03:11,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 11:03:11,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 11:03:11,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 11:03:11,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:03:09" (1/3) ... [2020-10-12 11:03:11,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2178f3bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:03:11, skipping insertion in model container [2020-10-12 11:03:11,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:03:10" (2/3) ... [2020-10-12 11:03:11,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2178f3bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:03:11, skipping insertion in model container [2020-10-12 11:03:11,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:03:11" (3/3) ... [2020-10-12 11:03:11,799 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label09.c [2020-10-12 11:03:11,810 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 11:03:11,818 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 11:03:11,834 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 11:03:11,860 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 11:03:11,860 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 11:03:11,860 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 11:03:11,860 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 11:03:11,861 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 11:03:11,861 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 11:03:11,861 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 11:03:11,861 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 11:03:11,886 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-12 11:03:11,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-12 11:03:11,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:11,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:03:11,912 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:11,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:11,919 INFO L82 PathProgramCache]: Analyzing trace with hash 255640414, now seen corresponding path program 1 times [2020-10-12 11:03:11,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:11,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679533045] [2020-10-12 11:03:11,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:12,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:12,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:14,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:14,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-12 11:03:14,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:03:14,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2000 [2020-10-12 11:03:14,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 11:03:14,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:03:14,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 11:03:14,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:03:14,701 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2020-10-12 11:03:14,824 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2020-10-12 11:03:15,012 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-12 11:03:15,184 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 42 [2020-10-12 11:03:15,381 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2020-10-12 11:03:15,513 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 36 [2020-10-12 11:03:15,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:03:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:15,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:15,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:15,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:03:15,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:15,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:03:15,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:15,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:03:15,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:03:15,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:03:15,969 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 11:03:15,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679533045] [2020-10-12 11:03:15,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 11:03:15,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 11:03:15,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575319989] [2020-10-12 11:03:15,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:03:15,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:03:15,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:03:15,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:03:15,997 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-12 11:03:16,298 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-12 11:03:16,439 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-12 11:03:16,610 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 11:03:17,016 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-10-12 11:03:17,382 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 108 [2020-10-12 11:03:17,928 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 105 [2020-10-12 11:03:18,534 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 102 [2020-10-12 11:03:18,939 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 97 [2020-10-12 11:03:19,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:03:19,858 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-12 11:03:19,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:03:19,860 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 124 [2020-10-12 11:03:19,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:03:19,873 INFO L225 Difference]: With dead ends: 474 [2020-10-12 11:03:19,874 INFO L226 Difference]: Without dead ends: 205 [2020-10-12 11:03:19,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:03:19,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-12 11:03:19,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-12 11:03:19,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-12 11:03:19,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-12 11:03:19,946 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 124 [2020-10-12 11:03:19,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:03:19,947 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-12 11:03:19,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:03:19,948 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-12 11:03:19,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 11:03:19,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:19,952 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:03:19,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 11:03:19,953 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:19,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:19,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1633393593, now seen corresponding path program 1 times [2020-10-12 11:03:19,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:19,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980155670] [2020-10-12 11:03:19,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:20,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:20,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:20,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:21,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:21,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-12 11:03:21,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:03:21,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1905 [2020-10-12 11:03:21,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:21,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:03:21,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:03:21,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:03:21,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:22,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:03:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:22,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:22,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:22,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:03:22,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:22,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:03:22,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:22,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:03:22,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:22,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:03:22,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:22,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:03:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:22,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:22,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:22,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:03:22,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:22,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:03:22,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:22,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:03:22,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:22,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:03:22,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:22,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:03:22,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980155670] [2020-10-12 11:03:22,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:03:22,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 11:03:22,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923814377] [2020-10-12 11:03:22,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 11:03:22,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:03:22,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 11:03:22,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-12 11:03:22,675 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 14 states. [2020-10-12 11:03:23,114 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-10-12 11:03:23,349 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 11:03:23,814 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-12 11:03:24,140 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-12 11:03:25,061 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-12 11:03:25,461 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-12 11:03:25,951 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-12 11:03:26,182 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-10-12 11:03:26,364 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-12 11:03:27,056 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-12 11:03:27,207 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-12 11:03:27,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:03:27,515 INFO L93 Difference]: Finished difference Result 508 states and 777 transitions. [2020-10-12 11:03:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 11:03:27,516 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 132 [2020-10-12 11:03:27,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:03:27,520 INFO L225 Difference]: With dead ends: 508 [2020-10-12 11:03:27,520 INFO L226 Difference]: Without dead ends: 369 [2020-10-12 11:03:27,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=316, Invalid=740, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 11:03:27,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-10-12 11:03:27,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 278. [2020-10-12 11:03:27,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-12 11:03:27,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 357 transitions. [2020-10-12 11:03:27,575 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 357 transitions. Word has length 132 [2020-10-12 11:03:27,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:03:27,579 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 357 transitions. [2020-10-12 11:03:27,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 11:03:27,579 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 357 transitions. [2020-10-12 11:03:27,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-12 11:03:27,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:27,587 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:03:27,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 11:03:27,588 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:27,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:27,589 INFO L82 PathProgramCache]: Analyzing trace with hash -289661257, now seen corresponding path program 1 times [2020-10-12 11:03:27,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:27,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480213180] [2020-10-12 11:03:27,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:27,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:27,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:27,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:28,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:28,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 11:03:28,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:03:28,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 979 [2020-10-12 11:03:28,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:28,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:03:28,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:03:28,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-12 11:03:28,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:28,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:03:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:28,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:28,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:28,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:03:28,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:28,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:03:28,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:28,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:03:28,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:28,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:03:28,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:28,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:03:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:28,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:28,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:28,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:28,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:03:28,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:03:28,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 11:03:28,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:03:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:03:28,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:03:28,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:28,847 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 11:03:28,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480213180] [2020-10-12 11:03:28,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:03:28,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:03:28,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830332825] [2020-10-12 11:03:28,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:03:28,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:03:28,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:03:28,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:03:28,851 INFO L87 Difference]: Start difference. First operand 278 states and 357 transitions. Second operand 6 states. [2020-10-12 11:03:29,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:03:29,980 INFO L93 Difference]: Finished difference Result 637 states and 869 transitions. [2020-10-12 11:03:29,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:03:29,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2020-10-12 11:03:29,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:03:29,988 INFO L225 Difference]: With dead ends: 637 [2020-10-12 11:03:29,989 INFO L226 Difference]: Without dead ends: 425 [2020-10-12 11:03:29,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:03:29,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-10-12 11:03:30,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 419. [2020-10-12 11:03:30,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-10-12 11:03:30,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 544 transitions. [2020-10-12 11:03:30,019 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 544 transitions. Word has length 135 [2020-10-12 11:03:30,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:03:30,019 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 544 transitions. [2020-10-12 11:03:30,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:03:30,020 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 544 transitions. [2020-10-12 11:03:30,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-12 11:03:30,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:30,022 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:30,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 11:03:30,023 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:30,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:30,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1562856386, now seen corresponding path program 1 times [2020-10-12 11:03:30,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:30,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10600345] [2020-10-12 11:03:30,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:30,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:30,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:30,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:32,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:34,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:34,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-12 11:03:34,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:03:34,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4735 [2020-10-12 11:03:34,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:03:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-12 11:03:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 11:03:34,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:03:35,399 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-12 11:03:35,592 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2020-10-12 11:03:35,832 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 50 [2020-10-12 11:03:36,051 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 46 [2020-10-12 11:03:36,277 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 42 [2020-10-12 11:03:36,464 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 38 [2020-10-12 11:03:36,642 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 34 [2020-10-12 11:03:36,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:03:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:36,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:36,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:36,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:03:36,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:36,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:03:36,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:03:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:03:36,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:36,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:03:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:36,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:36,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:36,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:03:36,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:36,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:03:36,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:03:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:03:36,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:36,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:03:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:36,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:36,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:36,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:03:36,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:36,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:03:36,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:36,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:03:36,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:36,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 11:03:36,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:36,978 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 11:03:36,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10600345] [2020-10-12 11:03:36,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:03:36,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:03:36,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630103453] [2020-10-12 11:03:36,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:03:36,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:03:36,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:03:36,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:03:36,981 INFO L87 Difference]: Start difference. First operand 419 states and 544 transitions. Second operand 13 states. [2020-10-12 11:03:37,548 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-12 11:03:37,814 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 11:03:38,242 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 112 [2020-10-12 11:03:38,660 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 109 [2020-10-12 11:03:39,030 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 106 [2020-10-12 11:03:39,759 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 103 [2020-10-12 11:03:40,362 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 98 [2020-10-12 11:03:40,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:03:40,875 INFO L93 Difference]: Finished difference Result 851 states and 1171 transitions. [2020-10-12 11:03:40,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:03:40,880 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 144 [2020-10-12 11:03:40,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:03:40,883 INFO L225 Difference]: With dead ends: 851 [2020-10-12 11:03:40,883 INFO L226 Difference]: Without dead ends: 498 [2020-10-12 11:03:40,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:03:40,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-12 11:03:40,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 492. [2020-10-12 11:03:40,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 492 states. [2020-10-12 11:03:40,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 625 transitions. [2020-10-12 11:03:40,915 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 625 transitions. Word has length 144 [2020-10-12 11:03:40,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:03:40,916 INFO L479 AbstractCegarLoop]: Abstraction has 492 states and 625 transitions. [2020-10-12 11:03:40,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:03:40,916 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 625 transitions. [2020-10-12 11:03:40,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-12 11:03:40,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:40,920 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:40,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 11:03:40,921 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:40,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:40,921 INFO L82 PathProgramCache]: Analyzing trace with hash 147999994, now seen corresponding path program 1 times [2020-10-12 11:03:40,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:40,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874588474] [2020-10-12 11:03:40,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:40,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:41,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:41,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:41,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:41,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:43,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:43,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-12 11:03:43,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:03:43,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2062 [2020-10-12 11:03:43,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:03:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:03:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 11:03:43,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:43,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:03:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:43,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:43,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:43,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:03:43,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:43,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:03:43,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:43,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:03:43,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:43,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:03:43,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:43,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:03:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:43,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:43,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:43,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:43,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:03:43,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:03:43,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 11:03:43,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:43,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:03:43,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:03:43,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:03:43,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:43,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:03:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:43,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:43,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:43,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:03:43,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:43,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 11:03:43,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:43,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:03:43,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:03:43,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:03:43,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 18 [2020-10-12 11:03:43,278 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:03:43,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874588474] [2020-10-12 11:03:43,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:03:43,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:03:43,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118308994] [2020-10-12 11:03:43,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:03:43,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:03:43,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:03:43,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:03:43,281 INFO L87 Difference]: Start difference. First operand 492 states and 625 transitions. Second operand 8 states. [2020-10-12 11:03:44,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:03:44,678 INFO L93 Difference]: Finished difference Result 1224 states and 1644 transitions. [2020-10-12 11:03:44,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 11:03:44,679 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2020-10-12 11:03:44,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:03:44,686 INFO L225 Difference]: With dead ends: 1224 [2020-10-12 11:03:44,686 INFO L226 Difference]: Without dead ends: 798 [2020-10-12 11:03:44,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:03:44,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-10-12 11:03:44,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 780. [2020-10-12 11:03:44,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2020-10-12 11:03:44,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1003 transitions. [2020-10-12 11:03:44,733 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1003 transitions. Word has length 155 [2020-10-12 11:03:44,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:03:44,733 INFO L479 AbstractCegarLoop]: Abstraction has 780 states and 1003 transitions. [2020-10-12 11:03:44,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:03:44,734 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1003 transitions. [2020-10-12 11:03:44,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-12 11:03:44,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:44,737 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:44,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 11:03:44,738 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:44,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:44,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1576307822, now seen corresponding path program 1 times [2020-10-12 11:03:44,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:44,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353680725] [2020-10-12 11:03:44,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:44,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:44,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:45,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:47,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:48,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:48,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 11:03:48,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:03:48,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3698 [2020-10-12 11:03:48,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:48,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:03:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-12 11:03:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 11:03:48,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:49,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:03:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:49,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:49,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:49,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:03:49,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:49,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:03:49,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:49,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:03:49,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:49,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:03:49,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:03:49,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:03:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:49,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:49,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:49,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:03:49,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:49,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:03:49,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:03:49,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:49,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:03:49,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:03:49,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:03:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:49,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:49,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:49,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:03:49,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:49,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 11:03:49,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:03:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 11:03:49,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:03:49,556 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:03:49,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353680725] [2020-10-12 11:03:49,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:03:49,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:03:49,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365538619] [2020-10-12 11:03:49,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:03:49,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:03:49,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:03:49,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:03:49,559 INFO L87 Difference]: Start difference. First operand 780 states and 1003 transitions. Second operand 13 states. [2020-10-12 11:03:50,333 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-12 11:03:50,506 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-12 11:03:50,931 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-12 11:03:51,482 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-12 11:03:51,869 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-12 11:03:52,320 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-12 11:03:52,760 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-12 11:03:53,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:03:53,056 INFO L93 Difference]: Finished difference Result 1560 states and 2055 transitions. [2020-10-12 11:03:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:03:53,059 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 168 [2020-10-12 11:03:53,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:03:53,064 INFO L225 Difference]: With dead ends: 1560 [2020-10-12 11:03:53,064 INFO L226 Difference]: Without dead ends: 846 [2020-10-12 11:03:53,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:03:53,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2020-10-12 11:03:53,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 844. [2020-10-12 11:03:53,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 844 states. [2020-10-12 11:03:53,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1078 transitions. [2020-10-12 11:03:53,105 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1078 transitions. Word has length 168 [2020-10-12 11:03:53,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:03:53,107 INFO L479 AbstractCegarLoop]: Abstraction has 844 states and 1078 transitions. [2020-10-12 11:03:53,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:03:53,108 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1078 transitions. [2020-10-12 11:03:53,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-12 11:03:53,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:53,114 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:03:53,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 11:03:53,114 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:53,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:53,115 INFO L82 PathProgramCache]: Analyzing trace with hash 479393401, now seen corresponding path program 1 times [2020-10-12 11:03:53,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:53,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503111289] [2020-10-12 11:03:53,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:53,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:53,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:53,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:54,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:55,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:55,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-12 11:03:55,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:03:55,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2047 [2020-10-12 11:03:55,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:03:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:03:55,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:03:55,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:55,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:03:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:55,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:55,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:55,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:03:55,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:55,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:03:55,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:03:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:03:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:03:55,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:55,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:03:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:55,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:55,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:55,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:55,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:03:55,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:03:55,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:03:55,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:55,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:03:55,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:03:55,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:03:55,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:55,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:03:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:55,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:55,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:55,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:03:55,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:55,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 11:03:55,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:55,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:03:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:03:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:03:55,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:03:55,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 11:03:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:55,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:55,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:03:55,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:03:55,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:03:55,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 11:03:55,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:03:55,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:03:55,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:03:55,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:03:55,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:03:55,514 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 46 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-12 11:03:55,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503111289] [2020-10-12 11:03:55,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:03:55,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 11:03:55,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467679680] [2020-10-12 11:03:55,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:03:55,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:03:55,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:03:55,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:03:55,518 INFO L87 Difference]: Start difference. First operand 844 states and 1078 transitions. Second operand 8 states. [2020-10-12 11:03:56,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:03:56,984 INFO L93 Difference]: Finished difference Result 1638 states and 2111 transitions. [2020-10-12 11:03:56,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 11:03:56,985 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 170 [2020-10-12 11:03:56,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:03:56,990 INFO L225 Difference]: With dead ends: 1638 [2020-10-12 11:03:56,990 INFO L226 Difference]: Without dead ends: 860 [2020-10-12 11:03:56,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-12 11:03:56,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2020-10-12 11:03:57,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 848. [2020-10-12 11:03:57,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 848 states. [2020-10-12 11:03:57,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1076 transitions. [2020-10-12 11:03:57,021 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1076 transitions. Word has length 170 [2020-10-12 11:03:57,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:03:57,021 INFO L479 AbstractCegarLoop]: Abstraction has 848 states and 1076 transitions. [2020-10-12 11:03:57,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:03:57,021 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1076 transitions. [2020-10-12 11:03:57,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-12 11:03:57,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:03:57,025 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:57,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 11:03:57,025 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:03:57,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:03:57,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1513118330, now seen corresponding path program 1 times [2020-10-12 11:03:57,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:03:57,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326372440] [2020-10-12 11:03:57,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:03:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:03:57,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:57,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:57,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:03:59,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:00,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:00,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-12 11:04:00,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:04:00,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3819 [2020-10-12 11:04:00,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:00,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:04:00,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 11:04:00,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:04:00,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:01,290 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-12 11:04:01,465 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 45 [2020-10-12 11:04:01,631 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 42 [2020-10-12 11:04:01,800 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 39 [2020-10-12 11:04:01,943 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 35 [2020-10-12 11:04:02,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:02,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:02,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:02,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:02,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:02,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:04:02,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:02,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:02,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:02,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:02,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:02,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:02,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:02,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:02,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:04:02,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:02,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:04:02,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:02,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:02,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:02,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:02,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:02,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:04:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:02,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:02,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:02,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:04:02,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:02,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 11:04:02,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:04:02,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:02,351 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:04:02,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326372440] [2020-10-12 11:04:02,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:02,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:04:02,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285159104] [2020-10-12 11:04:02,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:04:02,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:02,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:04:02,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:04:02,354 INFO L87 Difference]: Start difference. First operand 848 states and 1076 transitions. Second operand 13 states. [2020-10-12 11:04:02,900 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-12 11:04:03,247 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2020-10-12 11:04:03,769 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 112 [2020-10-12 11:04:04,286 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 109 [2020-10-12 11:04:04,651 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 106 [2020-10-12 11:04:04,980 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 103 [2020-10-12 11:04:05,518 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 98 [2020-10-12 11:04:05,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:05,785 INFO L93 Difference]: Finished difference Result 1696 states and 2198 transitions. [2020-10-12 11:04:05,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 11:04:05,786 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 174 [2020-10-12 11:04:05,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:05,790 INFO L225 Difference]: With dead ends: 1696 [2020-10-12 11:04:05,790 INFO L226 Difference]: Without dead ends: 914 [2020-10-12 11:04:05,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:04:05,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2020-10-12 11:04:05,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 906. [2020-10-12 11:04:05,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 906 states. [2020-10-12 11:04:05,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1144 transitions. [2020-10-12 11:04:05,820 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1144 transitions. Word has length 174 [2020-10-12 11:04:05,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:05,821 INFO L479 AbstractCegarLoop]: Abstraction has 906 states and 1144 transitions. [2020-10-12 11:04:05,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:04:05,821 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1144 transitions. [2020-10-12 11:04:05,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-12 11:04:05,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:05,825 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:04:05,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 11:04:05,826 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:05,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:05,826 INFO L82 PathProgramCache]: Analyzing trace with hash -286717248, now seen corresponding path program 1 times [2020-10-12 11:04:05,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:05,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989194594] [2020-10-12 11:04:05,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:05,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:05,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:05,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:06,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:06,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:10,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:10,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-12 11:04:10,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:04:10,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4164 [2020-10-12 11:04:10,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:10,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:04:10,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:04:10,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 11:04:10,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:10,430 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 43 [2020-10-12 11:04:10,674 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2020-10-12 11:04:10,819 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-10-12 11:04:11,013 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 44 [2020-10-12 11:04:11,276 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2020-10-12 11:04:11,493 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 46 [2020-10-12 11:04:11,728 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 41 [2020-10-12 11:04:11,983 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 40 [2020-10-12 11:04:12,174 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 36 [2020-10-12 11:04:12,339 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 36 [2020-10-12 11:04:12,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:12,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:12,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:12,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:12,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:12,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:04:12,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:12,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:12,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:12,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:12,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:12,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:12,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:12,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:12,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:04:12,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:12,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:04:12,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:12,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:12,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:12,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:04:12,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:12,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:04:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:12,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:12,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:12,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:04:12,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:12,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 11:04:12,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:12,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:12,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:04:12,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:04:12,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:13,055 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:04:13,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989194594] [2020-10-12 11:04:13,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:13,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:04:13,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985884234] [2020-10-12 11:04:13,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:04:13,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:13,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:04:13,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:04:13,058 INFO L87 Difference]: Start difference. First operand 906 states and 1144 transitions. Second operand 20 states. [2020-10-12 11:04:13,347 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-12 11:04:13,519 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 11:04:14,005 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2020-10-12 11:04:14,440 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-10-12 11:04:14,861 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 112 [2020-10-12 11:04:15,303 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 109 [2020-10-12 11:04:15,687 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 114 [2020-10-12 11:04:16,123 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-12 11:04:16,460 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2020-10-12 11:04:16,928 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2020-10-12 11:04:17,250 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 105 [2020-10-12 11:04:17,682 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 106 [2020-10-12 11:04:17,996 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 97 [2020-10-12 11:04:18,309 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-12 11:04:18,711 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2020-10-12 11:04:18,958 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2020-10-12 11:04:19,567 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-12 11:04:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:20,190 INFO L93 Difference]: Finished difference Result 1924 states and 2470 transitions. [2020-10-12 11:04:20,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 11:04:20,193 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 182 [2020-10-12 11:04:20,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:20,198 INFO L225 Difference]: With dead ends: 1924 [2020-10-12 11:04:20,198 INFO L226 Difference]: Without dead ends: 1084 [2020-10-12 11:04:20,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=557, Invalid=1335, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 11:04:20,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2020-10-12 11:04:20,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1050. [2020-10-12 11:04:20,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2020-10-12 11:04:20,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1309 transitions. [2020-10-12 11:04:20,237 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1309 transitions. Word has length 182 [2020-10-12 11:04:20,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:20,238 INFO L479 AbstractCegarLoop]: Abstraction has 1050 states and 1309 transitions. [2020-10-12 11:04:20,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:04:20,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1309 transitions. [2020-10-12 11:04:20,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-12 11:04:20,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:20,243 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:20,243 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 11:04:20,243 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:20,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:20,244 INFO L82 PathProgramCache]: Analyzing trace with hash -249677458, now seen corresponding path program 1 times [2020-10-12 11:04:20,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:20,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190785770] [2020-10-12 11:04:20,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:20,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:20,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:20,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:22,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:25,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:25,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-12 11:04:25,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:04:25,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4768 [2020-10-12 11:04:25,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:25,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:04:25,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:04:25,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 11:04:25,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:25,445 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-12 11:04:25,582 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-12 11:04:25,708 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-12 11:04:26,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:26,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:26,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:26,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:26,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:26,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:04:26,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:26,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:26,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:26,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:26,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:26,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:04:26,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:26,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:04:26,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:26,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:26,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:26,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:26,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:26,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:04:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:26,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:26,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:26,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:04:26,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:26,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 11:04:26,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:26,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:26,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:26,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:04:26,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:26,272 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:04:26,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190785770] [2020-10-12 11:04:26,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:26,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:04:26,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078060736] [2020-10-12 11:04:26,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:04:26,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:26,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:04:26,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:04:26,274 INFO L87 Difference]: Start difference. First operand 1050 states and 1309 transitions. Second operand 13 states. [2020-10-12 11:04:26,768 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2020-10-12 11:04:26,955 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-12 11:04:27,144 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 11:04:27,531 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-12 11:04:27,921 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-12 11:04:28,583 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-12 11:04:29,020 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-12 11:04:29,476 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-12 11:04:29,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:29,933 INFO L93 Difference]: Finished difference Result 2104 states and 2675 transitions. [2020-10-12 11:04:29,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:04:29,933 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 186 [2020-10-12 11:04:29,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:29,939 INFO L225 Difference]: With dead ends: 2104 [2020-10-12 11:04:29,940 INFO L226 Difference]: Without dead ends: 1120 [2020-10-12 11:04:29,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:04:29,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2020-10-12 11:04:29,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1112. [2020-10-12 11:04:29,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1112 states. [2020-10-12 11:04:29,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1380 transitions. [2020-10-12 11:04:29,978 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1380 transitions. Word has length 186 [2020-10-12 11:04:29,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:29,978 INFO L479 AbstractCegarLoop]: Abstraction has 1112 states and 1380 transitions. [2020-10-12 11:04:29,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:04:29,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1380 transitions. [2020-10-12 11:04:29,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-12 11:04:29,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:29,983 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:29,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 11:04:29,983 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:29,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:29,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1027493475, now seen corresponding path program 1 times [2020-10-12 11:04:29,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:29,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1892107162] [2020-10-12 11:04:29,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:30,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:30,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:30,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:30,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:33,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:35,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:35,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-12 11:04:35,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:04:35,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 11:04:35,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:35,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:04:35,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:04:35,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 11:04:35,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:35,678 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-12 11:04:35,990 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2020-10-12 11:04:36,442 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 55 [2020-10-12 11:04:36,711 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 46 [2020-10-12 11:04:37,046 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 49 [2020-10-12 11:04:37,465 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 50 [2020-10-12 11:04:37,878 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 48 [2020-10-12 11:04:38,178 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 48 [2020-10-12 11:04:38,592 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 46 [2020-10-12 11:04:38,951 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 42 [2020-10-12 11:04:39,332 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 41 [2020-10-12 11:04:39,667 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 39 [2020-10-12 11:04:39,927 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 34 [2020-10-12 11:04:40,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:40,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:40,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:40,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:40,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:40,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:04:40,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:40,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:40,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:40,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:40,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:40,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:40,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:40,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:40,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:04:40,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:40,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:04:40,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:40,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:40,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:40,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:40,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:40,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:04:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:40,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:40,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:40,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:04:40,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:40,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 11:04:40,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:40,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:40,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:40,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:04:40,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:40,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 11:04:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:40,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:40,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:40,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:04:40,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:40,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 11:04:40,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:40,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:40,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:04:40,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 11:04:40,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:40,576 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 77 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-12 11:04:40,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1892107162] [2020-10-12 11:04:40,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:40,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:04:40,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491984487] [2020-10-12 11:04:40,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:04:40,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:40,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:04:40,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:04:40,579 INFO L87 Difference]: Start difference. First operand 1112 states and 1380 transitions. Second operand 20 states. [2020-10-12 11:04:41,325 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2020-10-12 11:04:41,542 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-12 11:04:41,746 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 11:04:42,255 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 118 [2020-10-12 11:04:42,651 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 112 [2020-10-12 11:04:42,942 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 71 [2020-10-12 11:04:43,343 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 113 [2020-10-12 11:04:43,788 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 113 [2020-10-12 11:04:44,203 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 111 [2020-10-12 11:04:44,882 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 113 [2020-10-12 11:04:45,524 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 110 [2020-10-12 11:04:46,053 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 107 [2020-10-12 11:04:46,516 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 107 [2020-10-12 11:04:46,946 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 106 [2020-10-12 11:04:47,101 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-12 11:04:47,294 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 40 [2020-10-12 11:04:47,777 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2020-10-12 11:04:48,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:48,127 INFO L93 Difference]: Finished difference Result 2241 states and 2837 transitions. [2020-10-12 11:04:48,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 11:04:48,128 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 199 [2020-10-12 11:04:48,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:48,134 INFO L225 Difference]: With dead ends: 2241 [2020-10-12 11:04:48,134 INFO L226 Difference]: Without dead ends: 1195 [2020-10-12 11:04:48,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=471, Invalid=1089, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 11:04:48,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2020-10-12 11:04:48,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1170. [2020-10-12 11:04:48,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1170 states. [2020-10-12 11:04:48,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1451 transitions. [2020-10-12 11:04:48,172 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1451 transitions. Word has length 199 [2020-10-12 11:04:48,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:48,173 INFO L479 AbstractCegarLoop]: Abstraction has 1170 states and 1451 transitions. [2020-10-12 11:04:48,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:04:48,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1451 transitions. [2020-10-12 11:04:48,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-12 11:04:48,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:48,178 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:04:48,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 11:04:48,178 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:48,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:48,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1629645001, now seen corresponding path program 1 times [2020-10-12 11:04:48,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:48,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731954124] [2020-10-12 11:04:48,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:48,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:48,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:48,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:49,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:49,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:50,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:50,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-12 11:04:50,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:04:50,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2604 [2020-10-12 11:04:50,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:50,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:04:50,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-12 11:04:50,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:04:50,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:51,293 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-12 11:04:51,492 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-10-12 11:04:51,681 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 41 [2020-10-12 11:04:51,863 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 40 [2020-10-12 11:04:52,050 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 38 [2020-10-12 11:04:52,233 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 36 [2020-10-12 11:04:52,388 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 37 [2020-10-12 11:04:52,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:52,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:52,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:52,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:52,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:52,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:04:52,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:52,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:52,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:52,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:52,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:52,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:52,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:52,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:52,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:04:52,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:52,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 11:04:52,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:52,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:52,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:52,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:52,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:52,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:04:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:52,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:52,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:52,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:04:52,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:52,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:04:52,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:52,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:52,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:52,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:52,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:52,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:04:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:52,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:52,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:52,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 11:04:52,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:52,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 11:04:52,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:52,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:52,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:52,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:04:52,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:52,842 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-12 11:04:52,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731954124] [2020-10-12 11:04:52,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:52,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:04:52,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696430624] [2020-10-12 11:04:52,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:04:52,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:52,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:04:52,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:04:52,846 INFO L87 Difference]: Start difference. First operand 1170 states and 1451 transitions. Second operand 13 states. [2020-10-12 11:04:53,540 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-12 11:04:53,701 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-12 11:04:54,152 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-12 11:04:54,620 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-12 11:04:54,941 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2020-10-12 11:04:55,365 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-10-12 11:04:56,014 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 87 [2020-10-12 11:04:56,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:56,421 INFO L93 Difference]: Finished difference Result 2342 states and 2950 transitions. [2020-10-12 11:04:56,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:04:56,427 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 208 [2020-10-12 11:04:56,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:56,434 INFO L225 Difference]: With dead ends: 2342 [2020-10-12 11:04:56,434 INFO L226 Difference]: Without dead ends: 1238 [2020-10-12 11:04:56,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:04:56,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2020-10-12 11:04:56,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1172. [2020-10-12 11:04:56,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2020-10-12 11:04:56,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1455 transitions. [2020-10-12 11:04:56,472 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1455 transitions. Word has length 208 [2020-10-12 11:04:56,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:56,473 INFO L479 AbstractCegarLoop]: Abstraction has 1172 states and 1455 transitions. [2020-10-12 11:04:56,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:04:56,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1455 transitions. [2020-10-12 11:04:56,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-12 11:04:56,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:56,479 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:56,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 11:04:56,479 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:56,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:56,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1688487757, now seen corresponding path program 1 times [2020-10-12 11:04:56,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:56,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843828234] [2020-10-12 11:04:56,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:56,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:56,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:56,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:57,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:57,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:00,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:01,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:01,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-12 11:05:01,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 11:05:01,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 11:05:01,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:01,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:05:01,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:05:01,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 11:05:01,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:01,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:01,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:01,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:01,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:01,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:01,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:05:01,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:01,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:05:01,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:01,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:01,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:01,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:01,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:01,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:05:01,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:05:01,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:05:01,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:01,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:01,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:01,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:05:01,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:01,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:05:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:01,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:01,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:01,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:05:01,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:01,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 11:05:01,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:01,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:01,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:01,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 11:05:01,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:01,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 11:05:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:01,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:01,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:01,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:05:01,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:01,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:05:01,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:01,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:01,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 11:05:01,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:01,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:01,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 11:05:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:01,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:01,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:01,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:05:01,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:01,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:05:01,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 11:05:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:01,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:01,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 11:05:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:01,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:01,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:01,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:05:01,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:01,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:05:01,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:01,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:01,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:05:01,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:01,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 108 proven. 53 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-12 11:05:01,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843828234] [2020-10-12 11:05:01,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:01,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:05:01,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466012440] [2020-10-12 11:05:01,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:05:01,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:01,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:05:01,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:05:01,784 INFO L87 Difference]: Start difference. First operand 1172 states and 1455 transitions. Second operand 7 states. [2020-10-12 11:05:03,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:03,308 INFO L93 Difference]: Finished difference Result 2608 states and 3277 transitions. [2020-10-12 11:05:03,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 11:05:03,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 234 [2020-10-12 11:05:03,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:03,326 INFO L225 Difference]: With dead ends: 2608 [2020-10-12 11:05:03,326 INFO L226 Difference]: Without dead ends: 1502 [2020-10-12 11:05:03,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:05:03,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2020-10-12 11:05:03,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1480. [2020-10-12 11:05:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1480 states. [2020-10-12 11:05:03,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1815 transitions. [2020-10-12 11:05:03,372 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1815 transitions. Word has length 234 [2020-10-12 11:05:03,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:03,372 INFO L479 AbstractCegarLoop]: Abstraction has 1480 states and 1815 transitions. [2020-10-12 11:05:03,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:05:03,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1815 transitions. [2020-10-12 11:05:03,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-12 11:05:03,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:03,378 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:05:03,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 11:05:03,379 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:03,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:03,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1771508964, now seen corresponding path program 1 times [2020-10-12 11:05:03,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:03,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1448243513] [2020-10-12 11:05:03,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:03,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:03,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:03,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:03,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:04,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:07,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:08,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:08,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 11:05:08,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 11:05:08,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 11:05:08,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:08,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:05:08,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:05:08,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 11:05:08,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:08,775 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-10-12 11:05:08,933 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-10-12 11:05:09,154 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2020-10-12 11:05:09,524 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 57 [2020-10-12 11:05:09,793 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 49 [2020-10-12 11:05:10,104 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 52 [2020-10-12 11:05:10,505 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 50 [2020-10-12 11:05:10,854 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 54 [2020-10-12 11:05:11,263 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 49 [2020-10-12 11:05:11,685 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 48 [2020-10-12 11:05:12,006 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 44 [2020-10-12 11:05:12,306 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 44 [2020-10-12 11:05:12,531 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 32 [2020-10-12 11:05:12,804 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 35 [2020-10-12 11:05:12,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:12,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:12,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:12,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:12,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:12,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:05:12,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:12,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:12,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:12,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:12,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:12,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:12,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:12,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:12,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:05:12,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:12,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:05:12,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:12,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:12,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:12,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:12,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:12,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:05:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:12,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:12,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:12,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:05:12,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:12,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:05:12,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:12,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:12,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:12,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:12,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:12,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 11:05:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:12,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:12,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:12,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 11:05:12,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:12,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:05:12,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 11:05:12,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:12,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 11:05:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:12,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:13,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:13,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:13,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:05:13,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:05:13,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 11:05:13,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:13,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:13,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:13,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:05:13,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 109 proven. 49 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-12 11:05:13,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1448243513] [2020-10-12 11:05:13,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:13,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:05:13,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742854975] [2020-10-12 11:05:13,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:05:13,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:13,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:05:13,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:05:13,342 INFO L87 Difference]: Start difference. First operand 1480 states and 1815 transitions. Second operand 20 states. [2020-10-12 11:05:13,621 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 11:05:13,830 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 11:05:14,368 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-10-12 11:05:14,792 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-10-12 11:05:15,202 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-10-12 11:05:15,678 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-12 11:05:16,081 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2020-10-12 11:05:16,531 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-12 11:05:16,901 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2020-10-12 11:05:17,400 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2020-10-12 11:05:17,753 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2020-10-12 11:05:18,194 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-10-12 11:05:18,527 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 100 [2020-10-12 11:05:18,872 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-12 11:05:19,306 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-10-12 11:05:19,597 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-10-12 11:05:20,770 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-12 11:05:20,941 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-12 11:05:21,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:21,241 INFO L93 Difference]: Finished difference Result 3009 states and 3743 transitions. [2020-10-12 11:05:21,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 11:05:21,244 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 234 [2020-10-12 11:05:21,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:21,250 INFO L225 Difference]: With dead ends: 3009 [2020-10-12 11:05:21,250 INFO L226 Difference]: Without dead ends: 1595 [2020-10-12 11:05:21,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=577, Invalid=1229, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 11:05:21,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2020-10-12 11:05:21,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1413. [2020-10-12 11:05:21,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1413 states. [2020-10-12 11:05:21,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1741 transitions. [2020-10-12 11:05:21,292 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1741 transitions. Word has length 234 [2020-10-12 11:05:21,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:21,292 INFO L479 AbstractCegarLoop]: Abstraction has 1413 states and 1741 transitions. [2020-10-12 11:05:21,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:05:21,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1741 transitions. [2020-10-12 11:05:21,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-12 11:05:21,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:21,298 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:05:21,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 11:05:21,299 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:21,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:21,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1269900553, now seen corresponding path program 1 times [2020-10-12 11:05:21,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:21,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344726506] [2020-10-12 11:05:21,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:21,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:21,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:21,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:21,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:21,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:22,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:22,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-12 11:05:22,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:05:22,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1643 [2020-10-12 11:05:22,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:22,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:05:22,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:05:22,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-12 11:05:22,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:23,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:23,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:23,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:23,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:23,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:23,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:05:23,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:23,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:23,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:23,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:05:23,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:23,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:23,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:23,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:23,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:23,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:05:23,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:05:23,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:05:23,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:23,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:23,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:23,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 11:05:23,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:23,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:05:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:23,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:23,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:23,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:23,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:05:23,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:05:23,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 11:05:23,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:23,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:23,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:23,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:05:23,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:23,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:05:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:23,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:23,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:23,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:23,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:05:23,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:05:23,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-12 11:05:23,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:23,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:23,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:23,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:05:23,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:23,476 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-12 11:05:23,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344726506] [2020-10-12 11:05:23,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:23,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:05:23,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811662845] [2020-10-12 11:05:23,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:05:23,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:23,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:05:23,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:05:23,479 INFO L87 Difference]: Start difference. First operand 1413 states and 1741 transitions. Second operand 7 states. [2020-10-12 11:05:25,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:25,678 INFO L93 Difference]: Finished difference Result 2571 states and 3231 transitions. [2020-10-12 11:05:25,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:05:25,684 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 240 [2020-10-12 11:05:25,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:25,693 INFO L225 Difference]: With dead ends: 2571 [2020-10-12 11:05:25,694 INFO L226 Difference]: Without dead ends: 2569 [2020-10-12 11:05:25,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:05:25,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2020-10-12 11:05:25,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 2232. [2020-10-12 11:05:25,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2232 states. [2020-10-12 11:05:25,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 2775 transitions. [2020-10-12 11:05:25,752 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 2775 transitions. Word has length 240 [2020-10-12 11:05:25,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:25,753 INFO L479 AbstractCegarLoop]: Abstraction has 2232 states and 2775 transitions. [2020-10-12 11:05:25,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:05:25,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 2775 transitions. [2020-10-12 11:05:25,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-10-12 11:05:25,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:25,761 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:25,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 11:05:25,762 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:25,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:25,762 INFO L82 PathProgramCache]: Analyzing trace with hash -607164170, now seen corresponding path program 1 times [2020-10-12 11:05:25,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:25,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77801135] [2020-10-12 11:05:25,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:25,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:25,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:25,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:26,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:26,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:26,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:27,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:30,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:30,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-12 11:05:30,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:05:30,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 11:05:30,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:30,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 11:05:30,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 11:05:30,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 11:05:30,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:30,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:30,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:30,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:30,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:30,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:30,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:05:30,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:30,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:30,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:30,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:30,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:30,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:30,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:30,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:05:30,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:30,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:05:30,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 11:05:30,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:30,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:05:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:30,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:30,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:30,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:30,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 11:05:30,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:05:30,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 11:05:30,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:30,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:30,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:30,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 11:05:30,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:31,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 11:05:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:31,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:31,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:31,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:31,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:05:31,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:05:31,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 11:05:31,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:31,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:31,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:31,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 11:05:31,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:31,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 11:05:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:31,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:31,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:31,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:31,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:05:31,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:05:31,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:05:31,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:31,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 11:05:31,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:31,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 11:05:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:31,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:31,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:31,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:05:31,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:31,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:05:31,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:31,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:31,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:31,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:05:31,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:31,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 11:05:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:31,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:31,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:31,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:05:31,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:31,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:05:31,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:05:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:31,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:31,217 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 173 proven. 83 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-12 11:05:31,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77801135] [2020-10-12 11:05:31,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:31,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 11:05:31,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166531247] [2020-10-12 11:05:31,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 11:05:31,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:31,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 11:05:31,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-12 11:05:31,219 INFO L87 Difference]: Start difference. First operand 2232 states and 2775 transitions. Second operand 9 states. [2020-10-12 11:05:33,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:33,467 INFO L93 Difference]: Finished difference Result 5212 states and 6482 transitions. [2020-10-12 11:05:33,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 11:05:33,471 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 253 [2020-10-12 11:05:33,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:33,481 INFO L225 Difference]: With dead ends: 5212 [2020-10-12 11:05:33,481 INFO L226 Difference]: Without dead ends: 2622 [2020-10-12 11:05:33,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-12 11:05:33,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2622 states. [2020-10-12 11:05:33,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2622 to 2335. [2020-10-12 11:05:33,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2335 states. [2020-10-12 11:05:33,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 2700 transitions. [2020-10-12 11:05:33,555 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 2700 transitions. Word has length 253 [2020-10-12 11:05:33,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:33,556 INFO L479 AbstractCegarLoop]: Abstraction has 2335 states and 2700 transitions. [2020-10-12 11:05:33,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 11:05:33,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 2700 transitions. [2020-10-12 11:05:33,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-12 11:05:33,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:33,566 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:05:33,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 11:05:33,567 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:33,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:33,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1452820279, now seen corresponding path program 1 times [2020-10-12 11:05:33,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:33,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56274732] [2020-10-12 11:05:33,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:33,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:33,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:34,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:34,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:34,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-10-12 11:05:34,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:05:34,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1383 [2020-10-12 11:05:34,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-12 11:05:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 11:05:34,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:35,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:35,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:35,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:35,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:35,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:35,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:05:35,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:35,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:35,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:35,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:35,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:35,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:35,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:35,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:35,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:05:35,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:35,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:05:35,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:35,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:35,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:35,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:35,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:35,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:05:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:35,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:35,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:35,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:05:35,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:35,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:05:35,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:35,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:35,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:35,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:35,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:35,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:05:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:35,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:35,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:35,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:05:35,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:35,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:05:35,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:35,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:35,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:35,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:35,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:35,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 11:05:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:35,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:35,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:35,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:05:35,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:35,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:05:35,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:35,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:35,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:35,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:35,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:35,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 11:05:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:35,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:35,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:35,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:05:35,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:35,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:05:35,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:35,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:35,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:35,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 11:05:35,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:35,417 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 132 proven. 5 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-10-12 11:05:35,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56274732] [2020-10-12 11:05:35,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:35,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:05:35,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452198295] [2020-10-12 11:05:35,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:05:35,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:35,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:05:35,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:05:35,419 INFO L87 Difference]: Start difference. First operand 2335 states and 2700 transitions. Second operand 5 states. [2020-10-12 11:05:36,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:36,477 INFO L93 Difference]: Finished difference Result 2561 states and 2932 transitions. [2020-10-12 11:05:36,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:05:36,483 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 264 [2020-10-12 11:05:36,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:36,491 INFO L225 Difference]: With dead ends: 2561 [2020-10-12 11:05:36,491 INFO L226 Difference]: Without dead ends: 2345 [2020-10-12 11:05:36,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:05:36,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2020-10-12 11:05:36,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 2335. [2020-10-12 11:05:36,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2335 states. [2020-10-12 11:05:36,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 2697 transitions. [2020-10-12 11:05:36,549 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 2697 transitions. Word has length 264 [2020-10-12 11:05:36,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:36,549 INFO L479 AbstractCegarLoop]: Abstraction has 2335 states and 2697 transitions. [2020-10-12 11:05:36,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:05:36,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 2697 transitions. [2020-10-12 11:05:36,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-12 11:05:36,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:36,558 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:36,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 11:05:36,558 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:36,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:36,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1257481933, now seen corresponding path program 1 times [2020-10-12 11:05:36,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:36,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823535698] [2020-10-12 11:05:36,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:36,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:36,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:36,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:38,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:40,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:40,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-12 11:05:40,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:05:40,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3424 [2020-10-12 11:05:40,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:40,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:40,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-12 11:05:40,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 11:05:40,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:40,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:40,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:40,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:40,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:40,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:40,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:05:40,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:40,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:40,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:40,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:40,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:40,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:40,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:40,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:40,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:05:40,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:40,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:05:40,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:40,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:40,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:40,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:40,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:05:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:40,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:40,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:40,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:05:40,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:40,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:05:40,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:40,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:40,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:05:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:40,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:40,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:40,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:05:40,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:40,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:05:40,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:40,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:40,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:40,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:40,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:40,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 11:05:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:40,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:40,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:40,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:05:40,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:40,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:05:40,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:40,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:40,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:40,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 11:05:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:40,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:40,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:40,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 11:05:40,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:40,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:05:40,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:40,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:40,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:40,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 11:05:40,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:40,279 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 137 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-12 11:05:40,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823535698] [2020-10-12 11:05:40,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:40,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:05:40,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328510117] [2020-10-12 11:05:40,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:05:40,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:40,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:05:40,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:05:40,281 INFO L87 Difference]: Start difference. First operand 2335 states and 2697 transitions. Second operand 5 states. [2020-10-12 11:05:41,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:41,319 INFO L93 Difference]: Finished difference Result 3024 states and 3542 transitions. [2020-10-12 11:05:41,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:05:41,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 269 [2020-10-12 11:05:41,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:41,330 INFO L225 Difference]: With dead ends: 3024 [2020-10-12 11:05:41,330 INFO L226 Difference]: Without dead ends: 2885 [2020-10-12 11:05:41,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:05:41,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2020-10-12 11:05:41,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 2335. [2020-10-12 11:05:41,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2335 states. [2020-10-12 11:05:41,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 2694 transitions. [2020-10-12 11:05:41,392 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 2694 transitions. Word has length 269 [2020-10-12 11:05:41,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:41,393 INFO L479 AbstractCegarLoop]: Abstraction has 2335 states and 2694 transitions. [2020-10-12 11:05:41,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:05:41,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 2694 transitions. [2020-10-12 11:05:41,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-10-12 11:05:41,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:41,401 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:41,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 11:05:41,401 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:41,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:41,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1218253451, now seen corresponding path program 1 times [2020-10-12 11:05:41,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:41,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118827265] [2020-10-12 11:05:41,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:41,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:41,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:41,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:43,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:45,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:45,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-12 11:05:45,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:05:45,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3923 [2020-10-12 11:05:45,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:45,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:45,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-12 11:05:45,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 11:05:45,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:45,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:45,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:45,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:45,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:45,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:45,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:05:45,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:45,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:45,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:45,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:45,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:45,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:45,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:45,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:45,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:05:45,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:45,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:05:45,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:45,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:45,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:45,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:45,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:45,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:05:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:45,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:45,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:45,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:05:45,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:45,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:05:45,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:45,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:45,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:05:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:45,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:45,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:45,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:05:45,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:45,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:05:45,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:45,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:45,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:45,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:45,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:45,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 11:05:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:45,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:45,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:45,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:05:45,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:45,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:05:45,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 11:05:45,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:45,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 11:05:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:45,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:45,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:45,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 11:05:45,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:45,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 11:05:45,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:45,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:45,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:45,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:05:45,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:45,682 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 267 proven. 2 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-12 11:05:45,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118827265] [2020-10-12 11:05:45,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:45,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:05:45,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696241574] [2020-10-12 11:05:45,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:05:45,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:45,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:05:45,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:05:45,684 INFO L87 Difference]: Start difference. First operand 2335 states and 2694 transitions. Second operand 7 states. [2020-10-12 11:05:47,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:47,105 INFO L93 Difference]: Finished difference Result 4404 states and 5096 transitions. [2020-10-12 11:05:47,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 11:05:47,106 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 289 [2020-10-12 11:05:47,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:47,115 INFO L225 Difference]: With dead ends: 4404 [2020-10-12 11:05:47,115 INFO L226 Difference]: Without dead ends: 2504 [2020-10-12 11:05:47,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:05:47,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2504 states. [2020-10-12 11:05:47,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2504 to 2484. [2020-10-12 11:05:47,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2484 states. [2020-10-12 11:05:47,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 2858 transitions. [2020-10-12 11:05:47,176 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 2858 transitions. Word has length 289 [2020-10-12 11:05:47,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:47,176 INFO L479 AbstractCegarLoop]: Abstraction has 2484 states and 2858 transitions. [2020-10-12 11:05:47,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:05:47,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 2858 transitions. [2020-10-12 11:05:47,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-12 11:05:47,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:47,184 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:05:47,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 11:05:47,184 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:47,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:47,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1252945518, now seen corresponding path program 1 times [2020-10-12 11:05:47,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:47,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17818978] [2020-10-12 11:05:47,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:47,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:47,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:48,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:48,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:48,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-12 11:05:48,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:05:48,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1182 [2020-10-12 11:05:48,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:48,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:48,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-10-12 11:05:48,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 11:05:48,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:48,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:48,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:48,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:48,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:48,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:48,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:05:48,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:48,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:48,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:48,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:48,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:48,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:05:48,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:48,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:05:48,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:48,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:48,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:48,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:48,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:48,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:05:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:48,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:48,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:48,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:05:48,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:48,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 11:05:48,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:48,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:48,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:48,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:48,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:48,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:05:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:48,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:48,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:48,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:05:48,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:48,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:05:48,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:48,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:48,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:48,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:48,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:48,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 11:05:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:48,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:48,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:48,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 11:05:48,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:48,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 11:05:48,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:48,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:48,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:48,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 11:05:48,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:48,891 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 171 proven. 4 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-10-12 11:05:48,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17818978] [2020-10-12 11:05:48,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:48,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:05:48,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278413344] [2020-10-12 11:05:48,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:05:48,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:48,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:05:48,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:05:48,893 INFO L87 Difference]: Start difference. First operand 2484 states and 2858 transitions. Second operand 5 states. [2020-10-12 11:05:49,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:49,841 INFO L93 Difference]: Finished difference Result 2718 states and 3098 transitions. [2020-10-12 11:05:49,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:05:49,841 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 302 [2020-10-12 11:05:49,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:49,849 INFO L225 Difference]: With dead ends: 2718 [2020-10-12 11:05:49,849 INFO L226 Difference]: Without dead ends: 2452 [2020-10-12 11:05:49,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:05:49,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2020-10-12 11:05:49,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2440. [2020-10-12 11:05:49,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2440 states. [2020-10-12 11:05:49,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 2802 transitions. [2020-10-12 11:05:49,903 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 2802 transitions. Word has length 302 [2020-10-12 11:05:49,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:49,904 INFO L479 AbstractCegarLoop]: Abstraction has 2440 states and 2802 transitions. [2020-10-12 11:05:49,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:05:49,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 2802 transitions. [2020-10-12 11:05:49,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-12 11:05:49,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:49,912 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:49,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 11:05:49,912 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:49,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:49,912 INFO L82 PathProgramCache]: Analyzing trace with hash 380059142, now seen corresponding path program 1 times [2020-10-12 11:05:49,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:49,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539296033] [2020-10-12 11:05:49,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:49,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:50,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:50,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:52,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:54,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:54,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-12 11:05:54,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:05:54,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4279 [2020-10-12 11:05:54,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:54,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:54,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 214 [2020-10-12 11:05:54,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 11:05:54,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:54,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:54,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:54,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:54,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:54,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:54,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:05:54,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:54,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:54,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:54,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:54,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:54,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:54,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:54,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:54,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:05:54,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:54,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:05:54,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:54,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:54,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:54,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:54,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:54,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:05:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:54,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:54,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:54,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:05:54,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:54,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:05:54,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:54,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:54,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:05:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:54,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:54,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:54,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:05:54,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:54,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:05:54,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:54,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:54,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:54,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:54,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:54,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 11:05:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:54,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:54,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:54,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:05:54,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:54,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:05:54,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:54,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:54,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 11:05:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:54,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:54,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:54,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 11:05:54,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:54,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:05:54,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:54,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:54,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:54,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:54,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:54,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-12 11:05:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:54,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:54,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:54,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 11:05:54,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:54,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 11:05:54,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:54,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:54,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:54,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 11:05:54,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:54,734 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 185 proven. 6 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2020-10-12 11:05:54,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539296033] [2020-10-12 11:05:54,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:54,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:05:54,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616394407] [2020-10-12 11:05:54,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:05:54,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:54,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:05:54,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:05:54,736 INFO L87 Difference]: Start difference. First operand 2440 states and 2802 transitions. Second operand 5 states. [2020-10-12 11:05:55,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:55,664 INFO L93 Difference]: Finished difference Result 2524 states and 2890 transitions. [2020-10-12 11:05:55,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:05:55,665 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 318 [2020-10-12 11:05:55,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:55,665 INFO L225 Difference]: With dead ends: 2524 [2020-10-12 11:05:55,665 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 11:05:55,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:05:55,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 11:05:55,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 11:05:55,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 11:05:55,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 11:05:55,672 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 318 [2020-10-12 11:05:55,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:55,672 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 11:05:55,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:05:55,672 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 11:05:55,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 11:05:55,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 11:05:55,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 11:05:55,815 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2020-10-12 11:05:56,688 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128 [2020-10-12 11:05:57,159 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 130 [2020-10-12 11:05:57,351 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 107 [2020-10-12 11:05:57,495 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 40 [2020-10-12 11:05:59,453 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 376 DAG size of output: 83 [2020-10-12 11:05:59,741 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 57 [2020-10-12 11:05:59,984 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 57 [2020-10-12 11:05:59,988 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:05:59,988 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-12 11:05:59,988 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:05:59,988 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-12 11:05:59,989 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-12 11:05:59,989 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,989 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,989 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,989 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,989 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,989 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,990 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-12 11:05:59,990 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-12 11:05:59,990 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-12 11:05:59,990 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-12 11:05:59,990 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-12 11:05:59,990 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-12 11:05:59,990 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-12 11:05:59,990 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-12 11:05:59,991 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-12 11:05:59,991 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-12 11:05:59,991 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,991 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,991 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,991 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,991 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,991 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,991 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-12 11:05:59,991 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-12 11:05:59,992 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-12 11:05:59,992 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-12 11:05:59,992 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-12 11:05:59,992 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-12 11:05:59,992 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-12 11:05:59,992 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-12 11:05:59,992 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-12 11:05:59,992 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-12 11:05:59,992 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-12 11:05:59,992 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 530) no Hoare annotation was computed. [2020-10-12 11:05:59,992 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-12 11:05:59,992 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-12 11:05:59,992 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-12 11:05:59,993 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-12 11:05:59,993 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,993 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,993 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,993 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,993 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,993 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-12 11:05:59,993 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-12 11:05:59,993 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-12 11:05:59,993 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-12 11:05:59,993 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-12 11:05:59,994 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-12 11:05:59,994 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-12 11:05:59,994 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-12 11:05:59,994 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-12 11:05:59,994 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,994 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,994 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,994 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,994 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,994 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-12 11:05:59,994 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-12 11:05:59,994 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-12 11:05:59,995 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-12 11:05:59,995 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-12 11:05:59,995 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-12 11:05:59,995 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-12 11:05:59,995 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-12 11:05:59,995 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-12 11:05:59,995 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-12 11:05:59,995 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-12 11:05:59,995 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-12 11:05:59,996 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-12 11:05:59,996 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,996 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,996 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,996 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,996 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,996 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-12 11:05:59,996 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-12 11:05:59,996 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-12 11:05:59,996 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-12 11:05:59,997 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-12 11:05:59,998 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-12 11:05:59,998 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-12 11:05:59,998 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-12 11:05:59,998 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-12 11:05:59,998 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-12 11:05:59,998 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-12 11:05:59,998 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-12 11:05:59,998 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-12 11:05:59,998 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-12 11:05:59,998 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-12 11:05:59,998 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-12 11:05:59,998 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,999 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,999 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,999 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,999 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:05:59,999 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-12 11:05:59,999 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-12 11:05:59,999 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-12 11:05:59,999 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-12 11:05:59,999 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-12 11:05:59,999 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-12 11:05:59,999 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-12 11:05:59,999 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-12 11:05:59,999 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,000 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,000 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,000 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,000 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,000 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-12 11:06:00,000 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-12 11:06:00,000 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-12 11:06:00,000 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-12 11:06:00,000 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-12 11:06:00,000 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-12 11:06:00,000 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-12 11:06:00,000 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-12 11:06:00,000 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-12 11:06:00,000 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-12 11:06:00,001 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse7 (= ~a7~0 |old(~a7~0)|)) (.cse8 (= ~a21~0 |old(~a21~0)|)) (.cse2 (= ~a20~0 |old(~a20~0)|)) (.cse9 (= ~a16~0 |old(~a16~0)|)) (.cse3 (= ~a8~0 |old(~a8~0)|))) (let ((.cse4 (= |old(~a7~0)| 1)) (.cse1 (= ~a21~0 1)) (.cse5 (not (= |old(~a21~0)| 1))) (.cse6 (not (= ~a12~0 8))) (.cse10 (and .cse0 .cse7 .cse8 .cse2 .cse9 .cse3))) (and (or (not (<= 4 |old(~a16~0)|)) (and (<= 1 ~a7~0) .cse0 .cse1 .cse2 (<= ~a16~0 4) .cse3 (<= 4 ~a16~0) (<= ~a7~0 1)) (not (<= 14 |old(~a8~0)|)) (not .cse4) (not (<= |old(~a16~0)| 4)) (not (<= |old(~a8~0)| 14)) (not (<= |old(~a17~0)| 0)) .cse5 .cse6 (not (<= |old(~a20~0)| 0))) (or (and .cse0 .cse7 .cse8 .cse2 .cse9 (= ~a8~0 15)) (not (= 15 |old(~a8~0)|)) .cse5) (or (not (= |old(~a17~0)| 1)) (and .cse7 .cse8 .cse2 .cse9 .cse3 (= ~a17~0 1))) (or .cse10 .cse5 .cse4) (or (not (= 14 |old(~a8~0)|)) (not (= |old(~a17~0)| |old(~a20~0)|)) (not (= 0 |old(~a20~0)|)) (and .cse0 (= ~a21~0 ~a7~0) .cse1 .cse2 (= 14 ~a8~0) (= 5 ~a16~0)) (not (= 5 |old(~a16~0)|)) .cse5 .cse6 (not (= |old(~a7~0)| |old(~a21~0)|))) (or (not (= |old(~a20~0)| 1)) .cse10)))) [2020-10-12 11:06:00,001 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-12 11:06:00,001 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,001 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,001 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,001 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,001 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-12 11:06:00,001 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,001 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,001 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-12 11:06:00,001 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-12 11:06:00,001 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-12 11:06:00,001 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-12 11:06:00,002 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,003 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-12 11:06:00,003 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-12 11:06:00,003 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-12 11:06:00,003 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-12 11:06:00,003 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-12 11:06:00,003 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-12 11:06:00,003 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-12 11:06:00,003 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-12 11:06:00,003 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-12 11:06:00,003 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-12 11:06:00,003 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-12 11:06:00,003 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-12 11:06:00,003 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-12 11:06:00,003 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-12 11:06:00,004 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-12 11:06:00,005 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:06:00,005 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-12 11:06:00,005 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 11:06:00,005 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:06:00,005 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-12 11:06:00,005 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-12 11:06:00,005 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and .cse0 (= ~a8~0 15)) (and (= ~a20~0 0) (= ~a20~0 ~a17~0) .cse0 (= 14 ~a8~0) (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (= ~a20~0 1) (not (= |old(~a21~0)| 1)) (= ~a17~0 1) (and .cse0 (not (= ~a7~0 1))) (not (= |old(~a17~0)| 1)) (and (<= 14 ~a8~0) (<= ~a8~0 14) (<= ~a16~0 4) (<= ~a17~0 0) (<= 4 ~a16~0) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a20~0 0)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0)))) [2020-10-12 11:06:00,005 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-12 11:06:00,005 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-12 11:06:00,005 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and .cse0 (= ~a8~0 15)) (and (= ~a20~0 0) (= ~a20~0 ~a17~0) .cse0 (= 14 ~a8~0) (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (= ~a20~0 1) (not (= |old(~a21~0)| 1)) (= ~a17~0 1) (and .cse0 (not (= ~a7~0 1))) (not (= |old(~a17~0)| 1)) (and (<= 14 ~a8~0) (<= ~a8~0 14) (<= ~a16~0 4) (<= ~a17~0 0) (<= 4 ~a16~0) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a20~0 0)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0)))) [2020-10-12 11:06:00,006 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-12 11:06:00,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:06:00 BoogieIcfgContainer [2020-10-12 11:06:00,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 11:06:00,030 INFO L168 Benchmark]: Toolchain (without parser) took 170381.63 ms. Allocated memory was 141.0 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 103.3 MB in the beginning and 376.6 MB in the end (delta: -273.3 MB). Peak memory consumption was 947.2 MB. Max. memory is 7.1 GB. [2020-10-12 11:06:00,030 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 11:06:00,031 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.40 ms. Allocated memory was 141.0 MB in the beginning and 207.1 MB in the end (delta: 66.1 MB). Free memory was 103.0 MB in the beginning and 173.2 MB in the end (delta: -70.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. [2020-10-12 11:06:00,031 INFO L168 Benchmark]: Boogie Preprocessor took 107.24 ms. Allocated memory is still 207.1 MB. Free memory was 173.2 MB in the beginning and 168.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-12 11:06:00,032 INFO L168 Benchmark]: RCFGBuilder took 1292.96 ms. Allocated memory was 207.1 MB in the beginning and 239.6 MB in the end (delta: 32.5 MB). Free memory was 168.3 MB in the beginning and 179.4 MB in the end (delta: -11.1 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-10-12 11:06:00,032 INFO L168 Benchmark]: TraceAbstraction took 168236.42 ms. Allocated memory was 239.6 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 179.4 MB in the beginning and 376.6 MB in the end (delta: -197.2 MB). Peak memory consumption was 924.8 MB. Max. memory is 7.1 GB. [2020-10-12 11:06:00,034 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 740.40 ms. Allocated memory was 141.0 MB in the beginning and 207.1 MB in the end (delta: 66.1 MB). Free memory was 103.0 MB in the beginning and 173.2 MB in the end (delta: -70.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.24 ms. Allocated memory is still 207.1 MB. Free memory was 173.2 MB in the beginning and 168.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1292.96 ms. Allocated memory was 207.1 MB in the beginning and 239.6 MB in the end (delta: 32.5 MB). Free memory was 168.3 MB in the beginning and 179.4 MB in the end (delta: -11.1 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 168236.42 ms. Allocated memory was 239.6 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 179.4 MB in the beginning and 376.6 MB in the end (delta: -197.2 MB). Peak memory consumption was 924.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 530]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((a21 == 1 && a8 == 15) || ((((a20 == 0 && a20 == a17) && a21 == 1) && 14 == a8) && 5 == a16)) || !(\old(a20) == 1)) || a20 == 1) || !(\old(a21) == 1)) || a17 == 1) || (a21 == 1 && !(a7 == 1))) || !(\old(a17) == 1)) || (((((((14 <= a8 && a8 <= 14) && a16 <= 4) && a17 <= 0) && 4 <= a16) && a21 <= 1) && 1 <= a21) && a20 <= 0)) || !(5 == \old(a16))) || !(15 == \old(a8))) || !(a12 == 8)) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 163.8s, OverallIterations: 21, TraceHistogramMax: 7, AutomataDifference: 64.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 550 SDtfs, 8647 SDslu, 933 SDs, 0 SdLazy, 19339 SolverSat, 2065 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 617 GetRequests, 248 SyntacticMatches, 14 SemanticMatches, 355 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1630 ImplicationChecksByTransitivity, 52.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2484occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 21 MinimizatonAttempts, 1696 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 183 PreInvPairs, 253 NumberOfFragments, 525 HoareAnnotationTreeSize, 183 FomulaSimplifications, 49236 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10184 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 93.7s InterpolantComputationTime, 4380 NumberOfCodeBlocks, 4380 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 4359 ConstructedInterpolants, 0 QuantifiedInterpolants, 10032860 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 1 PerfectInterpolantSequences, 2957/3361 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...