/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:06:48,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:06:48,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:06:48,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:06:48,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:06:48,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:06:48,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:06:48,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:06:48,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:06:48,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:06:48,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:06:48,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:06:48,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:06:48,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:06:48,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:06:48,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:06:48,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:06:48,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:06:48,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:06:48,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:06:48,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:06:48,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:06:48,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:06:48,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:06:48,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:06:48,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:06:48,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:06:48,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:06:48,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:06:48,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:06:48,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:06:48,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:06:48,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:06:48,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:06:48,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:06:48,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:06:48,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:06:48,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:06:48,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:06:48,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:06:48,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:06:48,491 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 06:06:48,538 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:06:48,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:06:48,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:06:48,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:06:48,540 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:06:48,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:06:48,542 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:06:48,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:06:48,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:06:48,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:06:48,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:06:48,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:06:48,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:06:48,543 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:06:48,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:06:48,543 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:06:48,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:06:48,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:06:48,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:06:48,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:06:48,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:06:48,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:06:48,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:06:48,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:06:48,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:06:48,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:06:48,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:06:48,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:06:48,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:06:48,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 06:06:48,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:06:48,889 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:06:48,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:06:48,894 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:06:48,895 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:06:48,895 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label57.c [2020-10-13 06:06:48,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/999c871fe/5ef2eb19a3c14cc3bac2b58a25b3d064/FLAG328f8e5a3 [2020-10-13 06:06:49,503 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:06:49,504 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label57.c [2020-10-13 06:06:49,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/999c871fe/5ef2eb19a3c14cc3bac2b58a25b3d064/FLAG328f8e5a3 [2020-10-13 06:06:49,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/999c871fe/5ef2eb19a3c14cc3bac2b58a25b3d064 [2020-10-13 06:06:49,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:06:49,803 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:06:49,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:06:49,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:06:49,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:06:49,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:06:49" (1/1) ... [2020-10-13 06:06:49,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e3fcd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:49, skipping insertion in model container [2020-10-13 06:06:49,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:06:49" (1/1) ... [2020-10-13 06:06:49,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:06:49,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:06:50,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:06:50,384 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:06:50,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:06:50,534 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:06:50,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:50 WrapperNode [2020-10-13 06:06:50,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:06:50,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:06:50,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:06:50,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:06:50,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:50" (1/1) ... [2020-10-13 06:06:50,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:50" (1/1) ... [2020-10-13 06:06:50,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:50" (1/1) ... [2020-10-13 06:06:50,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:50" (1/1) ... [2020-10-13 06:06:50,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:50" (1/1) ... [2020-10-13 06:06:50,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:50" (1/1) ... [2020-10-13 06:06:50,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:50" (1/1) ... [2020-10-13 06:06:50,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:06:50,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:06:50,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:06:50,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:06:50,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:06:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:06:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:06:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:06:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:06:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:06:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:06:51,736 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:06:51,737 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:06:51,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:06:51 BoogieIcfgContainer [2020-10-13 06:06:51,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:06:51,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:06:51,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:06:51,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:06:51,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:06:49" (1/3) ... [2020-10-13 06:06:51,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111f37d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:06:51, skipping insertion in model container [2020-10-13 06:06:51,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:50" (2/3) ... [2020-10-13 06:06:51,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111f37d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:06:51, skipping insertion in model container [2020-10-13 06:06:51,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:06:51" (3/3) ... [2020-10-13 06:06:51,752 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label57.c [2020-10-13 06:06:51,763 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:06:51,771 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:06:51,787 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:06:51,813 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:06:51,814 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:06:51,814 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:06:51,814 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:06:51,815 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:06:51,815 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:06:51,815 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:06:51,815 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:06:51,843 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:06:51,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 06:06:51,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:51,862 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] [2020-10-13 06:06:51,863 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:51,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:51,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1332132926, now seen corresponding path program 1 times [2020-10-13 06:06:51,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:51,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079035595] [2020-10-13 06:06:51,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:52,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:52,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:53,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:53,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 06:06:53,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:06:53,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1558 [2020-10-13 06:06:53,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:53,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:06:53,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:06:53,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:06:53,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 06:06:54,697 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-10-13 06:06:54,909 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2020-10-13 06:06:55,140 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 49 [2020-10-13 06:06:55,396 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 46 [2020-10-13 06:06:55,622 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 43 [2020-10-13 06:06:55,822 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 40 [2020-10-13 06:06:55,989 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 35 [2020-10-13 06:06:56,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:56,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:56,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:56,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:56,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:56,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:06:56,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:06:56,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:06:56,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079035595] [2020-10-13 06:06:56,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:06:56,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:06:56,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863311218] [2020-10-13 06:06:56,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:06:56,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:56,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:06:56,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:06:56,241 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-13 06:06:56,525 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-13 06:06:56,660 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-13 06:06:56,851 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 06:06:57,194 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-10-13 06:06:57,523 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 111 [2020-10-13 06:06:58,009 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 108 [2020-10-13 06:06:58,599 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 105 [2020-10-13 06:06:58,990 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 100 [2020-10-13 06:06:59,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:59,901 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:06:59,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:06:59,904 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 84 [2020-10-13 06:06:59,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:59,930 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:06:59,931 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:06:59,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:06:59,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:06:59,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:07:00,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:07:00,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:07:00,004 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 84 [2020-10-13 06:07:00,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:00,005 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:07:00,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:07:00,005 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:07:00,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-13 06:07:00,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:00,010 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] [2020-10-13 06:07:00,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:07:00,011 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:00,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:00,011 INFO L82 PathProgramCache]: Analyzing trace with hash 512838553, now seen corresponding path program 1 times [2020-10-13 06:07:00,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:00,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206322088] [2020-10-13 06:07:00,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:00,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:00,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:01,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:01,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 06:07:01,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:07:01,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1051 [2020-10-13 06:07:01,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:01,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:01,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:07:01,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:07:01,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:01,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:01,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:01,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:01,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:01,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:01,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:01,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:01,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:01,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:01,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:01,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:01,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:01,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:07:01,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:01,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:07:01,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:01,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:01,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:01,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:07:01,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:01,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:07:01,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206322088] [2020-10-13 06:07:01,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:01,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:01,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666938] [2020-10-13 06:07:01,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:01,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:01,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:01,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:01,799 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:07:02,495 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:07:03,197 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:07:03,515 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:07:03,889 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:07:04,057 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:07:04,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:04,626 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:07:04,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:07:04,626 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2020-10-13 06:07:04,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:04,633 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:07:04,633 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:07:04,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:07:04,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:07:04,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:07:04,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:07:04,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:07:04,691 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 92 [2020-10-13 06:07:04,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:04,694 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:07:04,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:04,694 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:07:04,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-13 06:07:04,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:04,702 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] [2020-10-13 06:07:04,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:07:04,703 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:04,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:04,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1908352151, now seen corresponding path program 1 times [2020-10-13 06:07:04,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:04,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987763336] [2020-10-13 06:07:04,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:04,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:04,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:05,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:05,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 06:07:05,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:07:05,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 611 [2020-10-13 06:07:05,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:07:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:07:05,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:05,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:05,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:05,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:05,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:05,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:05,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:07:05,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:05,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:05,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:05,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:05,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:05,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:05,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:05,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:05,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:07:05,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:05,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:07:05,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:07:05,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:05,525 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:07:05,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987763336] [2020-10-13 06:07:05,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:05,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:07:05,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709861865] [2020-10-13 06:07:05,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:07:05,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:05,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:07:05,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:07:05,530 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:07:06,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:06,470 INFO L93 Difference]: Finished difference Result 625 states and 851 transitions. [2020-10-13 06:07:06,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:07:06,471 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 95 [2020-10-13 06:07:06,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:06,476 INFO L225 Difference]: With dead ends: 625 [2020-10-13 06:07:06,476 INFO L226 Difference]: Without dead ends: 415 [2020-10-13 06:07:06,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:07:06,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-10-13 06:07:06,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2020-10-13 06:07:06,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-13 06:07:06,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 548 transitions. [2020-10-13 06:07:06,503 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 548 transitions. Word has length 95 [2020-10-13 06:07:06,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:06,504 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 548 transitions. [2020-10-13 06:07:06,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:07:06,504 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 548 transitions. [2020-10-13 06:07:06,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-13 06:07:06,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:06,508 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] [2020-10-13 06:07:06,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:07:06,508 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:06,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:06,509 INFO L82 PathProgramCache]: Analyzing trace with hash -131303262, now seen corresponding path program 1 times [2020-10-13 06:07:06,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:06,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663292965] [2020-10-13 06:07:06,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:06,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:06,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:06,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:07,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:08,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:08,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 06:07:08,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:08,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2468 [2020-10-13 06:07:09,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:09,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:09,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:07:09,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:07:09,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:09,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:09,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:09,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:09,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:09,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:09,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:09,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:09,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:09,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:09,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:09,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:09,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:09,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:09,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:09,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:07:09,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:09,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:07:09,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:09,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:07:09,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:09,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:07:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:09,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:09,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:09,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:07:09,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:09,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:07:09,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:09,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:09,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:07:09,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:07:09,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:07:09,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663292965] [2020-10-13 06:07:09,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:09,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:07:09,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359342000] [2020-10-13 06:07:09,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:07:09,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:09,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:07:09,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:07:09,149 INFO L87 Difference]: Start difference. First operand 415 states and 548 transitions. Second operand 7 states. [2020-10-13 06:07:10,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:10,423 INFO L93 Difference]: Finished difference Result 1060 states and 1475 transitions. [2020-10-13 06:07:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:07:10,424 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-13 06:07:10,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:10,434 INFO L225 Difference]: With dead ends: 1060 [2020-10-13 06:07:10,434 INFO L226 Difference]: Without dead ends: 711 [2020-10-13 06:07:10,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:07:10,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2020-10-13 06:07:10,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 695. [2020-10-13 06:07:10,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-10-13 06:07:10,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 924 transitions. [2020-10-13 06:07:10,488 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 924 transitions. Word has length 104 [2020-10-13 06:07:10,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:10,488 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 924 transitions. [2020-10-13 06:07:10,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:07:10,488 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 924 transitions. [2020-10-13 06:07:10,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-13 06:07:10,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:10,494 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:07:10,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:07:10,495 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:10,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:10,495 INFO L82 PathProgramCache]: Analyzing trace with hash -570061670, now seen corresponding path program 1 times [2020-10-13 06:07:10,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:10,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855082933] [2020-10-13 06:07:10,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:10,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:10,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:10,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:11,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:13,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 06:07:13,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:07:13,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2858 [2020-10-13 06:07:13,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:13,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:07:13,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:07:13,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:13,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:13,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:13,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:13,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:13,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:13,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:13,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:13,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:13,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:13,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:13,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:13,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:13,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:07:13,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:13,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:13,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:13,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:13,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:13,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:07:13,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-13 06:07:13,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:07:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:13,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:13,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:13,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:13,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:13,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:07:13,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:13,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:07:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 06:07:13,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:13,631 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:07:13,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855082933] [2020-10-13 06:07:13,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:13,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:07:13,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968112362] [2020-10-13 06:07:13,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:07:13,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:13,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:07:13,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:07:13,636 INFO L87 Difference]: Start difference. First operand 695 states and 924 transitions. Second operand 7 states. [2020-10-13 06:07:15,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:15,042 INFO L93 Difference]: Finished difference Result 1624 states and 2203 transitions. [2020-10-13 06:07:15,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:07:15,043 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-13 06:07:15,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:15,051 INFO L225 Difference]: With dead ends: 1624 [2020-10-13 06:07:15,051 INFO L226 Difference]: Without dead ends: 995 [2020-10-13 06:07:15,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:07:15,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2020-10-13 06:07:15,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 701. [2020-10-13 06:07:15,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2020-10-13 06:07:15,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 835 transitions. [2020-10-13 06:07:15,095 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 835 transitions. Word has length 108 [2020-10-13 06:07:15,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:15,098 INFO L479 AbstractCegarLoop]: Abstraction has 701 states and 835 transitions. [2020-10-13 06:07:15,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:07:15,098 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 835 transitions. [2020-10-13 06:07:15,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-13 06:07:15,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:15,100 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:15,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:07:15,101 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:15,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:15,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1437278062, now seen corresponding path program 1 times [2020-10-13 06:07:15,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:15,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514671211] [2020-10-13 06:07:15,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:15,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:15,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:16,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:16,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 06:07:16,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:07:16,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-10-13 06:07:16,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:16,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:16,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:07:16,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:07:16,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:16,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:16,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:16,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:16,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:16,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:16,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:16,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:16,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:16,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:16,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:16,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:16,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:16,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:16,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:16,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:07:16,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:16,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:16,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:16,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:16,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:16,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:07:16,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:16,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:07:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:16,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:16,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:16,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:07:16,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:16,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:07:16,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:16,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:16,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:07:16,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:07:16,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:16,304 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:07:16,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514671211] [2020-10-13 06:07:16,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:16,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:07:16,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005097774] [2020-10-13 06:07:16,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:07:16,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:16,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:07:16,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:07:16,307 INFO L87 Difference]: Start difference. First operand 701 states and 835 transitions. Second operand 7 states. [2020-10-13 06:07:17,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:17,959 INFO L93 Difference]: Finished difference Result 1501 states and 1778 transitions. [2020-10-13 06:07:17,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:07:17,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-10-13 06:07:17,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:17,964 INFO L225 Difference]: With dead ends: 1501 [2020-10-13 06:07:17,965 INFO L226 Difference]: Without dead ends: 717 [2020-10-13 06:07:17,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:07:17,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2020-10-13 06:07:17,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 699. [2020-10-13 06:07:17,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-13 06:07:17,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 780 transitions. [2020-10-13 06:07:17,990 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 780 transitions. Word has length 112 [2020-10-13 06:07:17,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:17,991 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 780 transitions. [2020-10-13 06:07:17,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:07:17,991 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 780 transitions. [2020-10-13 06:07:17,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-13 06:07:17,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:17,993 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:17,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:07:17,994 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:17,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:17,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1938290533, now seen corresponding path program 1 times [2020-10-13 06:07:17,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:17,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24750178] [2020-10-13 06:07:17,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:18,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:18,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:18,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:19,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:19,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-13 06:07:19,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:07:19,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1416 [2020-10-13 06:07:19,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:19,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:19,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:07:19,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:19,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:19,956 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 39 [2020-10-13 06:07:20,101 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2020-10-13 06:07:20,238 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2020-10-13 06:07:20,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:20,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:20,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:20,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:20,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:20,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:20,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:20,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:20,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:20,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:20,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:20,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:20,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:20,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:20,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:20,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:20,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 06:07:20,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:20,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:20,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:20,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:07:20,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:20,783 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:07:20,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24750178] [2020-10-13 06:07:20,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:20,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:20,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509053802] [2020-10-13 06:07:20,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:20,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:20,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:20,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:20,791 INFO L87 Difference]: Start difference. First operand 699 states and 780 transitions. Second operand 13 states. [2020-10-13 06:07:21,329 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:07:21,732 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2020-10-13 06:07:22,122 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2020-10-13 06:07:22,391 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2020-10-13 06:07:22,624 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-13 06:07:22,972 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2020-10-13 06:07:23,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:23,326 INFO L93 Difference]: Finished difference Result 1402 states and 1593 transitions. [2020-10-13 06:07:23,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:07:23,327 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-10-13 06:07:23,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:23,332 INFO L225 Difference]: With dead ends: 1402 [2020-10-13 06:07:23,332 INFO L226 Difference]: Without dead ends: 752 [2020-10-13 06:07:23,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:07:23,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2020-10-13 06:07:23,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 742. [2020-10-13 06:07:23,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-10-13 06:07:23,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 831 transitions. [2020-10-13 06:07:23,362 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 831 transitions. Word has length 125 [2020-10-13 06:07:23,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:23,362 INFO L479 AbstractCegarLoop]: Abstraction has 742 states and 831 transitions. [2020-10-13 06:07:23,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:23,363 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 831 transitions. [2020-10-13 06:07:23,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-13 06:07:23,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:23,365 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] [2020-10-13 06:07:23,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:07:23,366 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:23,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:23,366 INFO L82 PathProgramCache]: Analyzing trace with hash -693662304, now seen corresponding path program 1 times [2020-10-13 06:07:23,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:23,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472210438] [2020-10-13 06:07:23,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:23,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:23,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:23,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:24,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:24,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:25,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:25,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 06:07:25,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:07:25,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2065 [2020-10-13 06:07:25,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:25,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:25,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:07:25,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:07:25,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:07:25,995 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-10-13 06:07:26,153 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 51 [2020-10-13 06:07:26,369 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 53 [2020-10-13 06:07:26,593 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 50 [2020-10-13 06:07:26,793 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 46 [2020-10-13 06:07:26,982 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 42 [2020-10-13 06:07:27,171 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 36 [2020-10-13 06:07:27,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:27,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:27,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:27,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:27,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:27,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:27,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:27,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:27,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:27,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:27,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:27,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:27,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:27,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:07:27,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:27,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:27,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:27,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:27,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:27,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:27,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:07:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:27,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:27,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:27,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:07:27,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:27,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 06:07:27,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:07:27,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:27,484 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:07:27,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472210438] [2020-10-13 06:07:27,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:27,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:27,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748924064] [2020-10-13 06:07:27,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:27,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:27,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:27,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:27,487 INFO L87 Difference]: Start difference. First operand 742 states and 831 transitions. Second operand 13 states. [2020-10-13 06:07:27,868 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-10-13 06:07:28,049 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:07:28,236 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 06:07:28,622 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 115 [2020-10-13 06:07:29,042 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 112 [2020-10-13 06:07:29,405 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 109 [2020-10-13 06:07:29,670 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 106 [2020-10-13 06:07:30,102 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 101 [2020-10-13 06:07:30,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:30,612 INFO L93 Difference]: Finished difference Result 1498 states and 1709 transitions. [2020-10-13 06:07:30,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:07:30,613 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 142 [2020-10-13 06:07:30,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:30,618 INFO L225 Difference]: With dead ends: 1498 [2020-10-13 06:07:30,618 INFO L226 Difference]: Without dead ends: 822 [2020-10-13 06:07:30,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:07:30,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2020-10-13 06:07:30,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 812. [2020-10-13 06:07:30,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 812 states. [2020-10-13 06:07:30,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 908 transitions. [2020-10-13 06:07:30,644 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 908 transitions. Word has length 142 [2020-10-13 06:07:30,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:30,644 INFO L479 AbstractCegarLoop]: Abstraction has 812 states and 908 transitions. [2020-10-13 06:07:30,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:30,645 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 908 transitions. [2020-10-13 06:07:30,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-13 06:07:30,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:30,647 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:30,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:07:30,648 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:30,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:30,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1239061073, now seen corresponding path program 1 times [2020-10-13 06:07:30,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:30,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556767511] [2020-10-13 06:07:30,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:30,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:30,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:31,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:31,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:31,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-13 06:07:31,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:07:31,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1211 [2020-10-13 06:07:31,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:31,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:31,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:07:31,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:07:31,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:32,378 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 35 [2020-10-13 06:07:32,518 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2020-10-13 06:07:32,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:32,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:32,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:32,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:32,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:32,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:07:32,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:32,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:32,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:32,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:07:32,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:32,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:33,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:33,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:07:33,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:33,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 06:07:33,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:33,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:33,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:33,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:07:33,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:33,263 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:07:33,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556767511] [2020-10-13 06:07:33,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:33,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:33,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358017644] [2020-10-13 06:07:33,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:33,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:33,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:33,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:33,266 INFO L87 Difference]: Start difference. First operand 812 states and 908 transitions. Second operand 13 states. [2020-10-13 06:07:33,850 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-13 06:07:34,053 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-13 06:07:34,381 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:07:34,727 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:07:34,968 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 06:07:35,211 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-13 06:07:35,492 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2020-10-13 06:07:35,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:35,948 INFO L93 Difference]: Finished difference Result 1635 states and 1862 transitions. [2020-10-13 06:07:35,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:35,951 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 147 [2020-10-13 06:07:35,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:35,955 INFO L225 Difference]: With dead ends: 1635 [2020-10-13 06:07:35,955 INFO L226 Difference]: Without dead ends: 869 [2020-10-13 06:07:35,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:35,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2020-10-13 06:07:35,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 863. [2020-10-13 06:07:35,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2020-10-13 06:07:35,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 961 transitions. [2020-10-13 06:07:35,981 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 961 transitions. Word has length 147 [2020-10-13 06:07:35,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:35,982 INFO L479 AbstractCegarLoop]: Abstraction has 863 states and 961 transitions. [2020-10-13 06:07:35,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:35,982 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 961 transitions. [2020-10-13 06:07:35,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-13 06:07:35,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:35,985 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:35,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:07:35,986 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:35,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:35,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1054647058, now seen corresponding path program 1 times [2020-10-13 06:07:35,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:35,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902218192] [2020-10-13 06:07:35,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:36,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:36,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:36,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:36,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:37,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:37,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 06:07:37,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:37,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1834 [2020-10-13 06:07:37,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:37,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:37,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:07:37,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:07:37,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:07:38,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:38,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:38,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:38,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:38,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:07:38,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:38,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:38,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:38,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:38,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:38,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:38,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:38,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:38,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:38,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:07:38,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:38,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:38,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:38,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:38,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:38,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:38,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:38,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:07:38,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:38,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 06:07:38,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:07:38,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 06:07:38,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902218192] [2020-10-13 06:07:38,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:38,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:38,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332282894] [2020-10-13 06:07:38,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:38,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:38,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:38,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:38,682 INFO L87 Difference]: Start difference. First operand 863 states and 961 transitions. Second operand 13 states. [2020-10-13 06:07:39,481 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-13 06:07:39,754 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-13 06:07:39,969 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-13 06:07:40,260 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 06:07:40,567 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 06:07:40,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:40,963 INFO L93 Difference]: Finished difference Result 1728 states and 1958 transitions. [2020-10-13 06:07:40,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:40,966 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 158 [2020-10-13 06:07:40,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:40,970 INFO L225 Difference]: With dead ends: 1728 [2020-10-13 06:07:40,970 INFO L226 Difference]: Without dead ends: 931 [2020-10-13 06:07:40,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:07:40,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2020-10-13 06:07:40,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 927. [2020-10-13 06:07:40,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-10-13 06:07:40,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1032 transitions. [2020-10-13 06:07:40,998 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1032 transitions. Word has length 158 [2020-10-13 06:07:40,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:40,999 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1032 transitions. [2020-10-13 06:07:40,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:40,999 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1032 transitions. [2020-10-13 06:07:41,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-13 06:07:41,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:41,002 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:41,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:07:41,002 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:41,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:41,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1086490690, now seen corresponding path program 1 times [2020-10-13 06:07:41,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:41,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142358479] [2020-10-13 06:07:41,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:41,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:41,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:41,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:41,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:42,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:42,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-13 06:07:42,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:07:42,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1672 [2020-10-13 06:07:42,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:42,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:42,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:07:42,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:42,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:43,074 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2020-10-13 06:07:43,214 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44 [2020-10-13 06:07:43,335 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2020-10-13 06:07:43,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:43,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:43,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:43,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:43,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:43,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:43,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:43,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:43,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:43,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:43,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:43,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:43,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:43,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:43,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:43,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:43,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:43,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:07:43,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:43,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:43,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:43,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:43,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:43,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:43,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:43,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:43,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:07:43,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:43,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:07:43,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:43,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:43,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:43,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:07:43,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:44,025 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:07:44,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142358479] [2020-10-13 06:07:44,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:44,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:07:44,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636808138] [2020-10-13 06:07:44,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:07:44,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:44,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:07:44,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:07:44,029 INFO L87 Difference]: Start difference. First operand 927 states and 1032 transitions. Second operand 13 states. [2020-10-13 06:07:44,760 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:07:45,146 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:07:45,526 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:07:45,827 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:07:46,116 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:07:46,455 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:07:46,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:46,816 INFO L93 Difference]: Finished difference Result 1852 states and 2093 transitions. [2020-10-13 06:07:46,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:07:46,819 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-10-13 06:07:46,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:46,822 INFO L225 Difference]: With dead ends: 1852 [2020-10-13 06:07:46,822 INFO L226 Difference]: Without dead ends: 974 [2020-10-13 06:07:46,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:07:46,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2020-10-13 06:07:46,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 965. [2020-10-13 06:07:46,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-10-13 06:07:46,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1077 transitions. [2020-10-13 06:07:46,852 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1077 transitions. Word has length 161 [2020-10-13 06:07:46,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:46,852 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1077 transitions. [2020-10-13 06:07:46,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:07:46,853 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1077 transitions. [2020-10-13 06:07:46,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-13 06:07:46,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:46,856 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:46,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:07:46,857 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:46,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:46,857 INFO L82 PathProgramCache]: Analyzing trace with hash 957422895, now seen corresponding path program 1 times [2020-10-13 06:07:46,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:46,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533379717] [2020-10-13 06:07:46,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:46,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:46,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:47,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:47,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:48,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:48,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:48,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 06:07:50,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 06:07:50,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3759 [2020-10-13 06:07:50,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:50,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:07:50,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:07:50,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:50,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:07:50,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:50,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:50,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:50,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:07:50,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:50,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:50,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:50,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:07:50,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:07:50,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:50,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:07:50,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 06:07:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:50,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:50,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:50,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:50,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:50,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:07:50,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:50,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:50,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:07:50,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 06:07:50,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:50,819 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-13 06:07:50,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533379717] [2020-10-13 06:07:50,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:50,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:07:50,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583949882] [2020-10-13 06:07:50,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:07:50,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:50,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:07:50,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:07:50,821 INFO L87 Difference]: Start difference. First operand 965 states and 1077 transitions. Second operand 7 states. [2020-10-13 06:07:52,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:52,145 INFO L93 Difference]: Finished difference Result 2387 states and 2905 transitions. [2020-10-13 06:07:52,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:07:52,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 177 [2020-10-13 06:07:52,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:52,154 INFO L225 Difference]: With dead ends: 2387 [2020-10-13 06:07:52,154 INFO L226 Difference]: Without dead ends: 1488 [2020-10-13 06:07:52,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:07:52,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2020-10-13 06:07:52,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1388. [2020-10-13 06:07:52,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1388 states. [2020-10-13 06:07:52,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1559 transitions. [2020-10-13 06:07:52,211 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1559 transitions. Word has length 177 [2020-10-13 06:07:52,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:52,212 INFO L479 AbstractCegarLoop]: Abstraction has 1388 states and 1559 transitions. [2020-10-13 06:07:52,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:07:52,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1559 transitions. [2020-10-13 06:07:52,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-13 06:07:52,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:52,216 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:52,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:07:52,217 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:52,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:52,217 INFO L82 PathProgramCache]: Analyzing trace with hash 751270200, now seen corresponding path program 1 times [2020-10-13 06:07:52,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:52,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842952941] [2020-10-13 06:07:52,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:52,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:52,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:52,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:52,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:52,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:52,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:52,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:53,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:55,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:55,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-13 06:07:55,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 06:07:55,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3673 [2020-10-13 06:07:55,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:07:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:07:55,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:56,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:07:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:56,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:56,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:56,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:07:56,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:56,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:07:56,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:56,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:56,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:56,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:56,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:56,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:07:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:56,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:56,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:56,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:07:56,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:56,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:07:56,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:56,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:56,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:56,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:56,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:56,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:07:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:56,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:56,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:56,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:07:56,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:56,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:07:56,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:56,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:07:56,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:56,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:07:56,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:56,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:07:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:56,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:56,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:56,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:07:56,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:56,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:07:56,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:56,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:07:56,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:07:56,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:07:56,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:56,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 06:07:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:56,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:56,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:56,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:07:56,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:07:56,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:07:56,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:56,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:07:56,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:07:56,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 06:07:56,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:56,159 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-13 06:07:56,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [842952941] [2020-10-13 06:07:56,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:07:56,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:07:56,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078468169] [2020-10-13 06:07:56,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:07:56,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:07:56,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:07:56,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:07:56,161 INFO L87 Difference]: Start difference. First operand 1388 states and 1559 transitions. Second operand 7 states. [2020-10-13 06:07:57,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:07:57,265 INFO L93 Difference]: Finished difference Result 3146 states and 3601 transitions. [2020-10-13 06:07:57,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 06:07:57,268 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-10-13 06:07:57,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:07:57,275 INFO L225 Difference]: With dead ends: 3146 [2020-10-13 06:07:57,275 INFO L226 Difference]: Without dead ends: 1824 [2020-10-13 06:07:57,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-13 06:07:57,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2020-10-13 06:07:57,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1809. [2020-10-13 06:07:57,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1809 states. [2020-10-13 06:07:57,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2077 transitions. [2020-10-13 06:07:57,329 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2077 transitions. Word has length 187 [2020-10-13 06:07:57,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:07:57,330 INFO L479 AbstractCegarLoop]: Abstraction has 1809 states and 2077 transitions. [2020-10-13 06:07:57,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:07:57,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2077 transitions. [2020-10-13 06:07:57,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-13 06:07:57,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:07:57,335 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:07:57,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:07:57,335 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:07:57,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:07:57,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1269527647, now seen corresponding path program 1 times [2020-10-13 06:07:57,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:07:57,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651423541] [2020-10-13 06:07:57,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:07:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:07:57,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:57,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:58,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:07:59,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:07:59,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-13 06:07:59,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:07:59,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1926 [2020-10-13 06:07:59,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:07:59,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:07:59,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:07:59,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:07:59,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:07:59,653 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-10-13 06:07:59,871 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 46 [2020-10-13 06:08:00,093 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 44 [2020-10-13 06:08:00,304 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 40 [2020-10-13 06:08:00,500 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 37 [2020-10-13 06:08:00,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:00,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:00,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:00,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:00,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:00,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:00,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:00,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:00,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:08:00,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:00,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:08:00,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:00,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:00,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:00,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:00,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:08:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:00,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:08:00,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:00,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:00,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:00,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:00,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:00,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:00,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:08:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:00,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:00,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:00,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:08:00,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:00,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:08:00,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:00,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:00,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:00,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:08:00,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:01,019 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:08:01,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651423541] [2020-10-13 06:08:01,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:01,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:01,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324035983] [2020-10-13 06:08:01,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:01,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:01,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:01,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:01,021 INFO L87 Difference]: Start difference. First operand 1809 states and 2077 transitions. Second operand 13 states. [2020-10-13 06:08:01,441 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:08:01,901 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2020-10-13 06:08:02,310 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-10-13 06:08:02,614 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-10-13 06:08:03,017 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-13 06:08:03,375 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-13 06:08:03,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:03,605 INFO L93 Difference]: Finished difference Result 3615 states and 4189 transitions. [2020-10-13 06:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:08:03,606 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 186 [2020-10-13 06:08:03,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:03,613 INFO L225 Difference]: With dead ends: 3615 [2020-10-13 06:08:03,613 INFO L226 Difference]: Without dead ends: 1855 [2020-10-13 06:08:03,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:08:03,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2020-10-13 06:08:03,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1809. [2020-10-13 06:08:03,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1809 states. [2020-10-13 06:08:03,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2077 transitions. [2020-10-13 06:08:03,664 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2077 transitions. Word has length 186 [2020-10-13 06:08:03,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:03,664 INFO L479 AbstractCegarLoop]: Abstraction has 1809 states and 2077 transitions. [2020-10-13 06:08:03,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:03,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2077 transitions. [2020-10-13 06:08:03,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-13 06:08:03,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:03,670 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:03,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:08:03,671 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:03,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:03,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1952646821, now seen corresponding path program 1 times [2020-10-13 06:08:03,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:03,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097390512] [2020-10-13 06:08:03,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:03,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:03,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:04,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:04,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:04,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:05,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:06,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:06,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-13 06:08:06,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:08:06,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2916 [2020-10-13 06:08:06,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:06,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:08:06,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:08:06,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:08:06,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,132 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2020-10-13 06:08:07,277 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2020-10-13 06:08:07,412 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 36 [2020-10-13 06:08:07,542 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 34 [2020-10-13 06:08:07,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:07,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:07,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:07,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:07,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:07,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:07,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:07,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:07,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:07,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:07,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:07,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:07,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:07,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:08:07,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:07,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:07,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:07,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:07,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:07,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:07,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:07,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:07,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:08:07,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:07,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:07,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:07,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:07,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:07,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:07,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:07,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:07,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:07,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:07,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:07,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:07,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:07,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:08:07,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:07,941 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:08:07,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097390512] [2020-10-13 06:08:07,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:07,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:08:07,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703244377] [2020-10-13 06:08:07,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:07,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:07,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:07,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:07,943 INFO L87 Difference]: Start difference. First operand 1809 states and 2077 transitions. Second operand 13 states. [2020-10-13 06:08:08,764 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:08:09,023 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2020-10-13 06:08:09,343 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2020-10-13 06:08:09,577 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90 [2020-10-13 06:08:10,002 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 89 [2020-10-13 06:08:10,441 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2020-10-13 06:08:10,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:10,741 INFO L93 Difference]: Finished difference Result 3490 states and 4023 transitions. [2020-10-13 06:08:10,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:08:10,744 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 211 [2020-10-13 06:08:10,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:10,751 INFO L225 Difference]: With dead ends: 3490 [2020-10-13 06:08:10,751 INFO L226 Difference]: Without dead ends: 1747 [2020-10-13 06:08:10,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:08:10,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2020-10-13 06:08:10,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1745. [2020-10-13 06:08:10,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1745 states. [2020-10-13 06:08:10,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 1973 transitions. [2020-10-13 06:08:10,795 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 1973 transitions. Word has length 211 [2020-10-13 06:08:10,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:10,796 INFO L479 AbstractCegarLoop]: Abstraction has 1745 states and 1973 transitions. [2020-10-13 06:08:10,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:10,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 1973 transitions. [2020-10-13 06:08:10,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-13 06:08:10,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:10,802 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:08:10,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:08:10,803 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:10,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:10,803 INFO L82 PathProgramCache]: Analyzing trace with hash -293404135, now seen corresponding path program 1 times [2020-10-13 06:08:10,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:10,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778858912] [2020-10-13 06:08:10,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:10,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:10,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:11,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:12,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:12,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-13 06:08:12,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:12,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1620 [2020-10-13 06:08:12,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:12,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:12,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:08:12,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:08:12,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:12,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:12,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:12,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:12,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:12,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:12,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:12,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:12,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:12,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:12,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:12,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:12,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:12,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:12,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:12,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:08:12,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:12,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:12,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:12,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:12,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:12,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:12,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:12,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:08:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:12,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:12,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:12,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:08:12,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:12,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:12,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:12,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:12,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:08:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:12,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:12,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:12,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:08:12,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:12,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:08:12,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:12,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:12,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:12,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:08:12,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:12,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 06:08:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:12,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:12,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:12,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:12,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:12,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:08:12,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:12,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:12,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:08:12,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:08:12,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:12,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 06:08:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:12,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:12,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:12,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:08:12,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:12,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:08:12,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:12,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:12,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:08:12,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:12,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:12,756 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 187 proven. 14 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-10-13 06:08:12,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778858912] [2020-10-13 06:08:12,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:12,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:08:12,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134168882] [2020-10-13 06:08:12,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:08:12,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:12,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:08:12,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:08:12,758 INFO L87 Difference]: Start difference. First operand 1745 states and 1973 transitions. Second operand 7 states. [2020-10-13 06:08:14,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:14,063 INFO L93 Difference]: Finished difference Result 3571 states and 4047 transitions. [2020-10-13 06:08:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:08:14,071 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 235 [2020-10-13 06:08:14,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:14,077 INFO L225 Difference]: With dead ends: 3571 [2020-10-13 06:08:14,077 INFO L226 Difference]: Without dead ends: 1747 [2020-10-13 06:08:14,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:08:14,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2020-10-13 06:08:14,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1743. [2020-10-13 06:08:14,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1743 states. [2020-10-13 06:08:14,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 1966 transitions. [2020-10-13 06:08:14,124 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 1966 transitions. Word has length 235 [2020-10-13 06:08:14,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:14,124 INFO L479 AbstractCegarLoop]: Abstraction has 1743 states and 1966 transitions. [2020-10-13 06:08:14,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:08:14,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 1966 transitions. [2020-10-13 06:08:14,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-13 06:08:14,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:14,131 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:14,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:08:14,131 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:14,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:14,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1449343765, now seen corresponding path program 1 times [2020-10-13 06:08:14,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:14,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992420596] [2020-10-13 06:08:14,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:14,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:14,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:14,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-13 06:08:14,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:14,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 748 [2020-10-13 06:08:14,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:14,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:14,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:08:14,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:08:14,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:15,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:15,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:15,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:15,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:15,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:15,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:15,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:15,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:15,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:15,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:15,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:15,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:15,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:15,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:15,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:15,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:15,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:08:15,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:15,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:15,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:15,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:15,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:15,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:15,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:15,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:08:15,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:15,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:15,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:15,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:15,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:15,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:15,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:15,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:15,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:15,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:15,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:15,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:15,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:15,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:15,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:15,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:15,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:08:15,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:15,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:15,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:15,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:15,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:15,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:15,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:15,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:08:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:15,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:15,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:15,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:08:15,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:15,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:08:15,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:15,275 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-13 06:08:15,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992420596] [2020-10-13 06:08:15,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:15,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:08:15,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178075176] [2020-10-13 06:08:15,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:08:15,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:15,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:08:15,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:15,277 INFO L87 Difference]: Start difference. First operand 1743 states and 1966 transitions. Second operand 6 states. [2020-10-13 06:08:16,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:16,240 INFO L93 Difference]: Finished difference Result 3501 states and 3984 transitions. [2020-10-13 06:08:16,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:16,241 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 246 [2020-10-13 06:08:16,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:16,246 INFO L225 Difference]: With dead ends: 3501 [2020-10-13 06:08:16,246 INFO L226 Difference]: Without dead ends: 1745 [2020-10-13 06:08:16,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:08:16,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2020-10-13 06:08:16,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1743. [2020-10-13 06:08:16,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1743 states. [2020-10-13 06:08:16,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 1964 transitions. [2020-10-13 06:08:16,287 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 1964 transitions. Word has length 246 [2020-10-13 06:08:16,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:16,287 INFO L479 AbstractCegarLoop]: Abstraction has 1743 states and 1964 transitions. [2020-10-13 06:08:16,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:08:16,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 1964 transitions. [2020-10-13 06:08:16,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-13 06:08:16,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:16,294 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:16,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:08:16,294 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:16,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:16,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1384260862, now seen corresponding path program 1 times [2020-10-13 06:08:16,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:16,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843791545] [2020-10-13 06:08:16,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:16,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-13 06:08:16,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:16,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-13 06:08:16,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:16,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:08:16,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:08:16,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:16,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:16,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:16,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:16,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:16,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:16,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:16,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:16,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:16,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:16,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:16,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:16,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:08:16,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:16,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:16,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:16,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:16,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:16,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:16,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:16,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:08:16,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:16,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:16,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:16,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:16,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:16,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:16,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:16,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:16,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:16,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:16,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:16,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:16,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:16,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:08:16,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:16,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:08:16,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:16,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:16,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:16,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:08:16,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:16,859 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 154 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-13 06:08:16,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843791545] [2020-10-13 06:08:16,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:16,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:16,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548580362] [2020-10-13 06:08:16,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:16,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:16,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:16,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:16,861 INFO L87 Difference]: Start difference. First operand 1743 states and 1964 transitions. Second operand 5 states. [2020-10-13 06:08:17,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:17,850 INFO L93 Difference]: Finished difference Result 3972 states and 4511 transitions. [2020-10-13 06:08:17,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:17,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 245 [2020-10-13 06:08:17,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:17,859 INFO L225 Difference]: With dead ends: 3972 [2020-10-13 06:08:17,860 INFO L226 Difference]: Without dead ends: 2295 [2020-10-13 06:08:17,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:17,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2020-10-13 06:08:17,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2019. [2020-10-13 06:08:17,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2019 states. [2020-10-13 06:08:17,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 2278 transitions. [2020-10-13 06:08:17,915 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 2278 transitions. Word has length 245 [2020-10-13 06:08:17,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:17,915 INFO L479 AbstractCegarLoop]: Abstraction has 2019 states and 2278 transitions. [2020-10-13 06:08:17,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:17,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 2278 transitions. [2020-10-13 06:08:17,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-13 06:08:17,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:17,922 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:17,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:08:17,923 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:17,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:17,923 INFO L82 PathProgramCache]: Analyzing trace with hash -893706274, now seen corresponding path program 1 times [2020-10-13 06:08:17,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:17,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127355410] [2020-10-13 06:08:17,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:18,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:18,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:18,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-10-13 06:08:18,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:18,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 469 [2020-10-13 06:08:18,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:18,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:18,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:08:18,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:08:18,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:18,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:18,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:18,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:18,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:18,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:18,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:18,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:18,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:18,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:18,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:18,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:18,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:18,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:18,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:18,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:08:18,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:18,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:08:18,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:18,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:18,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:18,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:18,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:18,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:08:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:18,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:18,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:18,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:18,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:18,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:08:18,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:18,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:18,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:18,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:18,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:18,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:08:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:18,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:18,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:18,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:18,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:18,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:18,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:18,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:18,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:18,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:18,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:18,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:08:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:18,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:18,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:18,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:08:18,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:18,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-13 06:08:18,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:18,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:18,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:18,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:08:18,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:18,969 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-13 06:08:18,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127355410] [2020-10-13 06:08:18,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:18,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:18,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557999055] [2020-10-13 06:08:18,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:18,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:18,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:18,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:18,974 INFO L87 Difference]: Start difference. First operand 2019 states and 2278 transitions. Second operand 5 states. [2020-10-13 06:08:19,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:19,928 INFO L93 Difference]: Finished difference Result 4109 states and 4665 transitions. [2020-10-13 06:08:19,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:19,929 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 284 [2020-10-13 06:08:19,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:19,936 INFO L225 Difference]: With dead ends: 4109 [2020-10-13 06:08:19,937 INFO L226 Difference]: Without dead ends: 2156 [2020-10-13 06:08:19,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:19,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2020-10-13 06:08:19,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 1878. [2020-10-13 06:08:19,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1878 states. [2020-10-13 06:08:19,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2091 transitions. [2020-10-13 06:08:19,979 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2091 transitions. Word has length 284 [2020-10-13 06:08:19,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:19,979 INFO L479 AbstractCegarLoop]: Abstraction has 1878 states and 2091 transitions. [2020-10-13 06:08:19,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:19,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2091 transitions. [2020-10-13 06:08:19,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-13 06:08:19,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:19,985 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:19,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:08:19,986 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:19,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:19,986 INFO L82 PathProgramCache]: Analyzing trace with hash 666628209, now seen corresponding path program 1 times [2020-10-13 06:08:19,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:19,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880445102] [2020-10-13 06:08:19,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 06:08:20,045 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 06:08:20,045 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 06:08:20,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:08:20,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:08:20 BoogieIcfgContainer [2020-10-13 06:08:20,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:08:20,094 INFO L168 Benchmark]: Toolchain (without parser) took 90291.32 ms. Allocated memory was 143.1 MB in the beginning and 986.7 MB in the end (delta: 843.6 MB). Free memory was 103.1 MB in the beginning and 583.8 MB in the end (delta: -480.7 MB). Peak memory consumption was 362.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:08:20,094 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 143.1 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:08:20,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.18 ms. Allocated memory was 143.1 MB in the beginning and 206.6 MB in the end (delta: 63.4 MB). Free memory was 102.6 MB in the beginning and 172.1 MB in the end (delta: -69.5 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2020-10-13 06:08:20,095 INFO L168 Benchmark]: Boogie Preprocessor took 111.62 ms. Allocated memory is still 206.6 MB. Free memory was 172.1 MB in the beginning and 166.9 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-10-13 06:08:20,096 INFO L168 Benchmark]: RCFGBuilder took 1095.42 ms. Allocated memory was 206.6 MB in the beginning and 233.8 MB in the end (delta: 27.3 MB). Free memory was 166.9 MB in the beginning and 170.1 MB in the end (delta: -3.2 MB). Peak memory consumption was 75.1 MB. Max. memory is 7.1 GB. [2020-10-13 06:08:20,096 INFO L168 Benchmark]: TraceAbstraction took 88348.20 ms. Allocated memory was 233.8 MB in the beginning and 986.7 MB in the end (delta: 752.9 MB). Free memory was 168.7 MB in the beginning and 583.8 MB in the end (delta: -415.0 MB). Peak memory consumption was 337.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:08:20,098 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 143.1 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 731.18 ms. Allocated memory was 143.1 MB in the beginning and 206.6 MB in the end (delta: 63.4 MB). Free memory was 102.6 MB in the beginning and 172.1 MB in the end (delta: -69.5 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.62 ms. Allocated memory is still 206.6 MB. Free memory was 172.1 MB in the beginning and 166.9 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1095.42 ms. Allocated memory was 206.6 MB in the beginning and 233.8 MB in the end (delta: 27.3 MB). Free memory was 166.9 MB in the beginning and 170.1 MB in the end (delta: -3.2 MB). Peak memory consumption was 75.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 88348.20 ms. Allocated memory was 233.8 MB in the beginning and 986.7 MB in the end (delta: 752.9 MB). Free memory was 168.7 MB in the beginning and 583.8 MB in the end (delta: -415.0 MB). Peak memory consumption was 337.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 410]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int a= 1; [L8] int d= 4; [L9] int e= 5; [L10] int f= 6; [L11] int c= 3; [L12] int b= 2; [L15] int u = 21; [L16] int v = 22; [L17] int w = 23; [L18] int x = 24; [L19] int y = 25; [L20] int z = 26; [L22] int a17 = 1; [L23] int a7 = 0; [L24] int a20 = 1; [L25] int a8 = 15; [L26] int a12 = 8; [L27] int a16 = 5; [L28] int a21 = 1; [L580] int output = -1; [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L334] a17 = 0 [L335] a16 = 4 [L336] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L269] a20 = 0 [L270] a17 = 1 [L271] a16 = 6 [L272] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L63] a17 = 0 [L64] return 26; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND TRUE ((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))))))) [L73] a7 = 1 [L74] a17 = 1 [L75] a21 = 0 [L76] a20 = 1 [L77] a8 = 13 [L78] a16 = 5 [L79] return 26; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L337] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L345] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L353] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L355] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L361] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L363] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L365] COND TRUE ((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5)) [L366] a21 = 1 [L367] a7 = 0 [L368] a17 = 0 [L369] a8 = 14 [L370] a20 = 0 [L371] return -1; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L337] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L345] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L353] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L355] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L361] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L363] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L365] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L372] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L377] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L382] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L391] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L394] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L397] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L400] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L403] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L406] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1))) [L409] COND TRUE ((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1)) [L410] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 88.2s, OverallIterations: 20, TraceHistogramMax: 6, AutomataDifference: 37.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 507 SDtfs, 7244 SDslu, 770 SDs, 0 SdLazy, 15214 SolverSat, 1298 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 432 GetRequests, 175 SyntacticMatches, 10 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 24.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2019occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 19 MinimizatonAttempts, 1108 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 47.0s InterpolantComputationTime, 3395 NumberOfCodeBlocks, 3395 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3080 ConstructedInterpolants, 0 QuantifiedInterpolants, 5046208 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 2469/2522 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 incorrect! Received shutdown request...