/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:04:48,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:04:48,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:04:48,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:04:48,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:04:48,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:04:48,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:04:48,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:04:48,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:04:48,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:04:48,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:04:48,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:04:48,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:04:48,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:04:48,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:04:48,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:04:48,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:04:48,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:04:48,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:04:48,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:04:48,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:04:48,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:04:48,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:04:48,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:04:48,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:04:48,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:04:48,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:04:48,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:04:48,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:04:48,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:04:48,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:04:48,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:04:48,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:04:48,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:04:48,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:04:48,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:04:48,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:04:48,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:04:48,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:04:48,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:04:48,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:04:48,359 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 [2020-10-14 19:04:48,381 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:04:48,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:04:48,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:04:48,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:04:48,382 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:04:48,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:04:48,383 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:04:48,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:04:48,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:04:48,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:04:48,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:04:48,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:04:48,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:04:48,384 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:04:48,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:04:48,384 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:04:48,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:04:48,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:04:48,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:04:48,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:04:48,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:04:48,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:04:48,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:04:48,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:04:48,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:04:48,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:04:48,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:04:48,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:04:48,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:04:48,387 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 19:04:48,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:04:48,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:04:48,716 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:04:48,718 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:04:48,718 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:04:48,719 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label38.c [2020-10-14 19:04:48,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c3fa0028/1a53dbd1cf6a4f80a56bbd54bac8a2a6/FLAG28e068b52 [2020-10-14 19:04:49,318 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:04:49,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label38.c [2020-10-14 19:04:49,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c3fa0028/1a53dbd1cf6a4f80a56bbd54bac8a2a6/FLAG28e068b52 [2020-10-14 19:04:49,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c3fa0028/1a53dbd1cf6a4f80a56bbd54bac8a2a6 [2020-10-14 19:04:49,613 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:04:49,614 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:04:49,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:04:49,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:04:49,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:04:49,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:04:49" (1/1) ... [2020-10-14 19:04:49,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43965ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:04:49, skipping insertion in model container [2020-10-14 19:04:49,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:04:49" (1/1) ... [2020-10-14 19:04:49,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:04:49,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:04:50,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:04:50,233 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:04:50,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:04:50,347 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:04:50,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:04:50 WrapperNode [2020-10-14 19:04:50,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:04:50,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:04:50,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:04:50,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:04:50,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:04:50" (1/1) ... [2020-10-14 19:04:50,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:04:50" (1/1) ... [2020-10-14 19:04:50,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:04:50" (1/1) ... [2020-10-14 19:04:50,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:04:50" (1/1) ... [2020-10-14 19:04:50,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:04:50" (1/1) ... [2020-10-14 19:04:50,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:04:50" (1/1) ... [2020-10-14 19:04:50,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:04:50" (1/1) ... [2020-10-14 19:04:50,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:04:50,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:04:50,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:04:50,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:04:50,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:04:50" (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 [2020-10-14 19:04:50,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:04:50,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:04:50,516 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:04:50,516 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:04:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:04:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:04:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:04:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:04:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:04:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:04:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:04:51,648 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:04:51,648 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:04:51,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:04:51 BoogieIcfgContainer [2020-10-14 19:04:51,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:04:51,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:04:51,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:04:51,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:04:51,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:04:49" (1/3) ... [2020-10-14 19:04:51,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5bf406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:04:51, skipping insertion in model container [2020-10-14 19:04:51,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:04:50" (2/3) ... [2020-10-14 19:04:51,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5bf406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:04:51, skipping insertion in model container [2020-10-14 19:04:51,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:04:51" (3/3) ... [2020-10-14 19:04:51,663 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label38.c [2020-10-14 19:04:51,674 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:04:51,682 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:04:51,696 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:04:51,722 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:04:51,722 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:04:51,723 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:04:51,723 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:04:51,723 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:04:51,723 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:04:51,724 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:04:51,724 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:04:51,748 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-14 19:04:51,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 19:04:51,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:04:51,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:04:51,760 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:04:51,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:04:51,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1861146994, now seen corresponding path program 1 times [2020-10-14 19:04:51,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:04:51,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593698123] [2020-10-14 19:04:51,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:04:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:52,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:52,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:53,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:53,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 19:04:53,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:04:53,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1452 [2020-10-14 19:04:53,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:53,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:53,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:04:53,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:04:53,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 19:04:53,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 19:04:53,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:04:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:53,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:53,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:53,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:04:53,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:53,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 19:04:53,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:53,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:53,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:53,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:53,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:04:53,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:53,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:04:53,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593698123] [2020-10-14 19:04:53,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:04:53,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 19:04:53,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528927357] [2020-10-14 19:04:53,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 19:04:53,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:04:53,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 19:04:53,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 19:04:53,797 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-10-14 19:04:55,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:04:55,226 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-10-14 19:04:55,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:04:55,229 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-10-14 19:04:55,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:04:55,246 INFO L225 Difference]: With dead ends: 557 [2020-10-14 19:04:55,247 INFO L226 Difference]: Without dead ends: 286 [2020-10-14 19:04:55,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:04:55,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-14 19:04:55,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-10-14 19:04:55,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-14 19:04:55,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 402 transitions. [2020-10-14 19:04:55,334 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 402 transitions. Word has length 88 [2020-10-14 19:04:55,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:04:55,335 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 402 transitions. [2020-10-14 19:04:55,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 19:04:55,336 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 402 transitions. [2020-10-14 19:04:55,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 19:04:55,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:04:55,341 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:04:55,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 19:04:55,342 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:04:55,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:04:55,342 INFO L82 PathProgramCache]: Analyzing trace with hash -136469723, now seen corresponding path program 1 times [2020-10-14 19:04:55,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:04:55,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998362202] [2020-10-14 19:04:55,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:04:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:55,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:55,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:56,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:56,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:56,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 19:04:56,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:04:56,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 789 [2020-10-14 19:04:56,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:56,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:56,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:04:56,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 19:04:56,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 19:04:56,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:56,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:04:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:56,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:56,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:56,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:04:56,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:56,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:04:56,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:56,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:56,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:56,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:56,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:56,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:56,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:04:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:56,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:56,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:56,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:04:56,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:56,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 19:04:56,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:56,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:56,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:56,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:56,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 19:04:56,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:56,366 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:04:56,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998362202] [2020-10-14 19:04:56,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:04:56,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:04:56,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676593322] [2020-10-14 19:04:56,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:04:56,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:04:56,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:04:56,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:04:56,371 INFO L87 Difference]: Start difference. First operand 280 states and 402 transitions. Second operand 5 states. [2020-10-14 19:04:57,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:04:57,430 INFO L93 Difference]: Finished difference Result 834 states and 1224 transitions. [2020-10-14 19:04:57,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:04:57,431 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2020-10-14 19:04:57,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:04:57,437 INFO L225 Difference]: With dead ends: 834 [2020-10-14 19:04:57,437 INFO L226 Difference]: Without dead ends: 560 [2020-10-14 19:04:57,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:04:57,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-14 19:04:57,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 554. [2020-10-14 19:04:57,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-10-14 19:04:57,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 783 transitions. [2020-10-14 19:04:57,487 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 783 transitions. Word has length 98 [2020-10-14 19:04:57,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:04:57,488 INFO L479 AbstractCegarLoop]: Abstraction has 554 states and 783 transitions. [2020-10-14 19:04:57,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:04:57,488 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 783 transitions. [2020-10-14 19:04:57,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 19:04:57,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:04:57,493 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:04:57,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 19:04:57,493 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:04:57,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:04:57,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1744209819, now seen corresponding path program 1 times [2020-10-14 19:04:57,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:04:57,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850816546] [2020-10-14 19:04:57,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:04:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:57,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:57,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:58,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:58,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:58,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 19:04:58,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:04:58,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1272 [2020-10-14 19:04:58,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:58,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:04:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 19:04:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 19:04:58,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:58,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:04:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:58,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:58,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:58,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:04:58,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:58,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:04:58,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:58,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:58,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:58,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:58,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:58,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:59,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:04:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:59,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:59,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:59,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 19:04:59,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:59,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 19:04:59,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:59,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:59,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:59,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:59,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 19:04:59,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:59,138 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:04:59,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [850816546] [2020-10-14 19:04:59,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:04:59,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:04:59,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972345553] [2020-10-14 19:04:59,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:04:59,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:04:59,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:04:59,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:04:59,141 INFO L87 Difference]: Start difference. First operand 554 states and 783 transitions. Second operand 5 states. [2020-10-14 19:05:00,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:00,223 INFO L93 Difference]: Finished difference Result 1189 states and 1731 transitions. [2020-10-14 19:05:00,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:05:00,225 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-10-14 19:05:00,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:00,234 INFO L225 Difference]: With dead ends: 1189 [2020-10-14 19:05:00,234 INFO L226 Difference]: Without dead ends: 560 [2020-10-14 19:05:00,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:05:00,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-14 19:05:00,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 554. [2020-10-14 19:05:00,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-10-14 19:05:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 779 transitions. [2020-10-14 19:05:00,280 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 779 transitions. Word has length 105 [2020-10-14 19:05:00,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:00,280 INFO L479 AbstractCegarLoop]: Abstraction has 554 states and 779 transitions. [2020-10-14 19:05:00,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:05:00,280 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 779 transitions. [2020-10-14 19:05:00,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-14 19:05:00,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:00,284 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:00,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 19:05:00,284 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:00,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:00,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1640976757, now seen corresponding path program 1 times [2020-10-14 19:05:00,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:00,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1513048412] [2020-10-14 19:05:00,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:00,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:00,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:00,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:01,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:01,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 19:05:01,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:05:01,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 691 [2020-10-14 19:05:01,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:01,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:01,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:01,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-14 19:05:01,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 19:05:01,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:01,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:01,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:01,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:01,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:01,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:01,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:05:01,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:01,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:01,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:01,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:01,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:01,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:01,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:01,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:01,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:01,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 19:05:01,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:01,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 19:05:01,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:01,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:01,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:01,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 19:05:01,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:01,227 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:05:01,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1513048412] [2020-10-14 19:05:01,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:01,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:05:01,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562253642] [2020-10-14 19:05:01,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:05:01,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:01,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:05:01,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:05:01,229 INFO L87 Difference]: Start difference. First operand 554 states and 779 transitions. Second operand 5 states. [2020-10-14 19:05:02,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:02,290 INFO L93 Difference]: Finished difference Result 1656 states and 2401 transitions. [2020-10-14 19:05:02,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:05:02,291 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-10-14 19:05:02,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:02,298 INFO L225 Difference]: With dead ends: 1656 [2020-10-14 19:05:02,298 INFO L226 Difference]: Without dead ends: 1108 [2020-10-14 19:05:02,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:05:02,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2020-10-14 19:05:02,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 965. [2020-10-14 19:05:02,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-10-14 19:05:02,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1315 transitions. [2020-10-14 19:05:02,363 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1315 transitions. Word has length 113 [2020-10-14 19:05:02,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:02,364 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1315 transitions. [2020-10-14 19:05:02,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:05:02,364 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1315 transitions. [2020-10-14 19:05:02,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-14 19:05:02,367 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:02,367 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:02,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 19:05:02,368 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:02,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:02,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1019297588, now seen corresponding path program 1 times [2020-10-14 19:05:02,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:02,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721495386] [2020-10-14 19:05:02,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:02,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:02,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:02,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:06,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:07,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:07,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 19:05:07,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:05:07,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 19:05:07,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:07,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:07,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 19:05:07,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-14 19:05:07,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 19:05:07,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:08,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:08,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:08,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:08,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:08,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:08,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:05:08,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:08,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:08,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:08,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:08,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:08,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:08,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:08,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:08,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:08,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:05:08,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:08,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:05:08,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:08,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:08,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:08,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:08,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:08,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 19:05:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:08,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:08,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:08,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 19:05:08,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:08,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 19:05:08,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:08,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:08,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:08,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 19:05:08,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:08,819 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 19:05:08,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721495386] [2020-10-14 19:05:08,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:08,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 19:05:08,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726333163] [2020-10-14 19:05:08,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 19:05:08,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:08,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 19:05:08,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-14 19:05:08,823 INFO L87 Difference]: Start difference. First operand 965 states and 1315 transitions. Second operand 13 states. [2020-10-14 19:05:09,603 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-14 19:05:09,815 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-14 19:05:10,344 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-14 19:05:10,613 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-14 19:05:11,015 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-14 19:05:11,437 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-14 19:05:11,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:11,623 INFO L93 Difference]: Finished difference Result 1995 states and 2781 transitions. [2020-10-14 19:05:11,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 19:05:11,624 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-10-14 19:05:11,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:11,633 INFO L225 Difference]: With dead ends: 1995 [2020-10-14 19:05:11,633 INFO L226 Difference]: Without dead ends: 1036 [2020-10-14 19:05:11,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-14 19:05:11,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2020-10-14 19:05:11,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1032. [2020-10-14 19:05:11,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2020-10-14 19:05:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1399 transitions. [2020-10-14 19:05:11,689 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1399 transitions. Word has length 127 [2020-10-14 19:05:11,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:11,690 INFO L479 AbstractCegarLoop]: Abstraction has 1032 states and 1399 transitions. [2020-10-14 19:05:11,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 19:05:11,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1399 transitions. [2020-10-14 19:05:11,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-14 19:05:11,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:11,699 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:11,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 19:05:11,700 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:11,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:11,700 INFO L82 PathProgramCache]: Analyzing trace with hash 2009760048, now seen corresponding path program 1 times [2020-10-14 19:05:11,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:11,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494838371] [2020-10-14 19:05:11,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:11,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:11,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:11,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:12,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:13,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:14,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:14,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 19:05:14,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:05:14,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3006 [2020-10-14 19:05:14,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:14,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-14 19:05:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 19:05:14,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:14,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:14,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:14,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:14,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:14,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:14,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:05:14,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:14,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:14,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:14,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:14,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:14,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:14,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:14,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:14,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:14,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:05:14,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:14,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:05:14,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:14,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:14,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:14,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:14,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:14,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:14,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 19:05:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:14,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:14,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:14,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 19:05:14,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:14,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 19:05:14,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:14,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:14,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:14,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:14,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 19:05:14,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:14,961 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 19:05:14,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494838371] [2020-10-14 19:05:14,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:14,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 19:05:14,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342529542] [2020-10-14 19:05:14,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 19:05:14,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:14,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 19:05:14,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:05:14,965 INFO L87 Difference]: Start difference. First operand 1032 states and 1399 transitions. Second operand 6 states. [2020-10-14 19:05:16,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:16,699 INFO L93 Difference]: Finished difference Result 3430 states and 4815 transitions. [2020-10-14 19:05:16,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 19:05:16,701 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2020-10-14 19:05:16,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:16,715 INFO L225 Difference]: With dead ends: 3430 [2020-10-14 19:05:16,715 INFO L226 Difference]: Without dead ends: 2404 [2020-10-14 19:05:16,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:05:16,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2020-10-14 19:05:16,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 2400. [2020-10-14 19:05:16,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2400 states. [2020-10-14 19:05:16,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2400 states to 2400 states and 3215 transitions. [2020-10-14 19:05:16,820 INFO L78 Accepts]: Start accepts. Automaton has 2400 states and 3215 transitions. Word has length 141 [2020-10-14 19:05:16,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:16,821 INFO L479 AbstractCegarLoop]: Abstraction has 2400 states and 3215 transitions. [2020-10-14 19:05:16,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 19:05:16,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2400 states and 3215 transitions. [2020-10-14 19:05:16,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-14 19:05:16,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:16,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:16,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 19:05:16,831 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:16,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:16,831 INFO L82 PathProgramCache]: Analyzing trace with hash -273287469, now seen corresponding path program 1 times [2020-10-14 19:05:16,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:16,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004380729] [2020-10-14 19:05:16,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:16,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:17,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:17,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-14 19:05:17,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:17,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-10-14 19:05:17,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:17,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:17,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:05:17,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:05:17,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 19:05:17,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:17,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:17,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:17,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:17,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:17,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:17,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:05:17,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:17,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:17,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:17,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:17,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:05:17,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:17,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:17,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:17,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:17,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 19:05:17,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:17,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 19:05:17,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:17,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:17,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:17,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:17,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 19:05:17,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:17,483 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:05:17,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004380729] [2020-10-14 19:05:17,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:05:17,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 19:05:17,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775229925] [2020-10-14 19:05:17,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:05:17,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:17,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:05:17,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:05:17,486 INFO L87 Difference]: Start difference. First operand 2400 states and 3215 transitions. Second operand 7 states. [2020-10-14 19:05:18,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:18,966 INFO L93 Difference]: Finished difference Result 4828 states and 6559 transitions. [2020-10-14 19:05:18,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 19:05:18,968 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2020-10-14 19:05:18,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:18,983 INFO L225 Difference]: With dead ends: 4828 [2020-10-14 19:05:18,983 INFO L226 Difference]: Without dead ends: 2569 [2020-10-14 19:05:18,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 19:05:18,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2020-10-14 19:05:19,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 2565. [2020-10-14 19:05:19,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2565 states. [2020-10-14 19:05:19,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 3430 transitions. [2020-10-14 19:05:19,074 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 3430 transitions. Word has length 141 [2020-10-14 19:05:19,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:19,075 INFO L479 AbstractCegarLoop]: Abstraction has 2565 states and 3430 transitions. [2020-10-14 19:05:19,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:05:19,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 3430 transitions. [2020-10-14 19:05:19,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-14 19:05:19,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:19,083 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:19,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 19:05:19,083 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:19,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:19,083 INFO L82 PathProgramCache]: Analyzing trace with hash -403264868, now seen corresponding path program 1 times [2020-10-14 19:05:19,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:19,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996776396] [2020-10-14 19:05:19,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:19,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:19,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:19,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:20,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:20,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 19:05:20,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:05:20,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1326 [2020-10-14 19:05:20,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:20,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:20,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 19:05:20,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:05:20,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 19:05:20,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:20,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:20,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:20,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:20,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:20,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:20,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 19:05:20,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:20,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:20,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:20,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:20,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:05:20,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:20,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:20,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:20,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:20,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:20,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:05:20,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:20,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 19:05:20,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:20,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:20,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:20,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:20,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 19:05:20,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:20,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 19:05:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:20,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:20,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:20,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 19:05:20,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:20,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 19:05:20,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:20,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:20,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:20,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 19:05:20,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:20,831 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 19:05:20,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996776396] [2020-10-14 19:05:20,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:20,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 19:05:20,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374963305] [2020-10-14 19:05:20,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:05:20,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:20,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:05:20,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:05:20,833 INFO L87 Difference]: Start difference. First operand 2565 states and 3430 transitions. Second operand 7 states. [2020-10-14 19:05:22,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:22,093 INFO L93 Difference]: Finished difference Result 5295 states and 7193 transitions. [2020-10-14 19:05:22,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:05:22,094 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2020-10-14 19:05:22,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:22,109 INFO L225 Difference]: With dead ends: 5295 [2020-10-14 19:05:22,109 INFO L226 Difference]: Without dead ends: 2871 [2020-10-14 19:05:22,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:05:22,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2020-10-14 19:05:22,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2714. [2020-10-14 19:05:22,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2714 states. [2020-10-14 19:05:22,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2714 states to 2714 states and 3605 transitions. [2020-10-14 19:05:22,199 INFO L78 Accepts]: Start accepts. Automaton has 2714 states and 3605 transitions. Word has length 151 [2020-10-14 19:05:22,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:22,200 INFO L479 AbstractCegarLoop]: Abstraction has 2714 states and 3605 transitions. [2020-10-14 19:05:22,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:05:22,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2714 states and 3605 transitions. [2020-10-14 19:05:22,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-14 19:05:22,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:22,208 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:22,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 19:05:22,209 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:22,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:22,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1283867554, now seen corresponding path program 1 times [2020-10-14 19:05:22,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:22,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522481741] [2020-10-14 19:05:22,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:22,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:22,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:23,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:23,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 19:05:23,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:23,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 865 [2020-10-14 19:05:23,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:23,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:23,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 19:05:23,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:05:23,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 19:05:23,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:23,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:23,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:23,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:23,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:23,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:23,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:05:23,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:23,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:05:23,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:23,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:23,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:23,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:23,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:23,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 19:05:23,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:23,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 19:05:23,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:23,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:23,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:23,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:23,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 19:05:23,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:23,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 19:05:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:23,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:23,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:23,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 19:05:23,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:23,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 19:05:23,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:23,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:23,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:23,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:23,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 19:05:23,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:23,505 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-14 19:05:23,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522481741] [2020-10-14 19:05:23,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:23,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 19:05:23,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367668918] [2020-10-14 19:05:23,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:05:23,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:23,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:05:23,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:05:23,509 INFO L87 Difference]: Start difference. First operand 2714 states and 3605 transitions. Second operand 7 states. [2020-10-14 19:05:24,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:24,872 INFO L93 Difference]: Finished difference Result 5847 states and 7838 transitions. [2020-10-14 19:05:24,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:05:24,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2020-10-14 19:05:24,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:24,889 INFO L225 Difference]: With dead ends: 5847 [2020-10-14 19:05:24,890 INFO L226 Difference]: Without dead ends: 3139 [2020-10-14 19:05:24,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:05:24,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3139 states. [2020-10-14 19:05:24,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3139 to 3139. [2020-10-14 19:05:24,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3139 states. [2020-10-14 19:05:24,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 4129 transitions. [2020-10-14 19:05:24,981 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 4129 transitions. Word has length 154 [2020-10-14 19:05:24,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:24,982 INFO L479 AbstractCegarLoop]: Abstraction has 3139 states and 4129 transitions. [2020-10-14 19:05:24,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:05:24,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 4129 transitions. [2020-10-14 19:05:24,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-14 19:05:24,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:24,991 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:24,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 19:05:24,991 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:24,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:24,992 INFO L82 PathProgramCache]: Analyzing trace with hash -724712583, now seen corresponding path program 1 times [2020-10-14 19:05:24,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:24,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163148467] [2020-10-14 19:05:24,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:25,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:25,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:25,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:25,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 19:05:25,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:25,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 815 [2020-10-14 19:05:25,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:25,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:25,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:05:25,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 19:05:25,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 19:05:25,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 19:05:25,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:25,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:25,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:25,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:25,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:25,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:05:25,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:25,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:25,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:25,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:25,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:25,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:25,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:05:25,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:25,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:05:25,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:25,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:25,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:25,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 19:05:25,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:25,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 19:05:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:25,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:25,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:25,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:25,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 19:05:25,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:25,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 19:05:25,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:25,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:25,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 19:05:25,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:26,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 19:05:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:26,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:26,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:26,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 19:05:26,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:26,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 19:05:26,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:26,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:26,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:26,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:26,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 19:05:26,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:26,208 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 19:05:26,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163148467] [2020-10-14 19:05:26,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:26,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 19:05:26,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22552891] [2020-10-14 19:05:26,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 19:05:26,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:26,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 19:05:26,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:05:26,211 INFO L87 Difference]: Start difference. First operand 3139 states and 4129 transitions. Second operand 8 states. [2020-10-14 19:05:28,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:28,200 INFO L93 Difference]: Finished difference Result 6834 states and 9096 transitions. [2020-10-14 19:05:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 19:05:28,206 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 162 [2020-10-14 19:05:28,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:28,222 INFO L225 Difference]: With dead ends: 6834 [2020-10-14 19:05:28,222 INFO L226 Difference]: Without dead ends: 3836 [2020-10-14 19:05:28,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 19:05:28,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3836 states. [2020-10-14 19:05:28,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3836 to 3419. [2020-10-14 19:05:28,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3419 states. [2020-10-14 19:05:28,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3419 states to 3419 states and 4388 transitions. [2020-10-14 19:05:28,314 INFO L78 Accepts]: Start accepts. Automaton has 3419 states and 4388 transitions. Word has length 162 [2020-10-14 19:05:28,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:28,315 INFO L479 AbstractCegarLoop]: Abstraction has 3419 states and 4388 transitions. [2020-10-14 19:05:28,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 19:05:28,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3419 states and 4388 transitions. [2020-10-14 19:05:28,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-14 19:05:28,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:28,354 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 19:05:28,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 19:05:28,355 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:28,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:28,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1361742345, now seen corresponding path program 1 times [2020-10-14 19:05:28,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:28,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647658793] [2020-10-14 19:05:28,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:28,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:28,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:28,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:29,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:30,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:30,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-14 19:05:30,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:05:30,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1719 [2020-10-14 19:05:30,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:30,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:30,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:05:30,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 19:05:30,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 19:05:30,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:30,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:30,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:30,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:30,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:30,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:30,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:05:30,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:30,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:30,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:30,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:30,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:30,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:30,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:30,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:30,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:30,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:05:30,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:30,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 19:05:30,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:30,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:30,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:30,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 19:05:30,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:30,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:05:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:30,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:30,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:30,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:30,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 19:05:30,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:30,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 19:05:30,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:30,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:30,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:30,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:30,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 19:05:30,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:30,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 19:05:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:30,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:30,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:30,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 19:05:30,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:30,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 19:05:30,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:30,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:30,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:30,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:30,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 19:05:30,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:30,466 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-14 19:05:30,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647658793] [2020-10-14 19:05:30,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:30,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:05:30,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742060570] [2020-10-14 19:05:30,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:05:30,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:30,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:05:30,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:05:30,468 INFO L87 Difference]: Start difference. First operand 3419 states and 4388 transitions. Second operand 7 states. [2020-10-14 19:05:31,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:31,918 INFO L93 Difference]: Finished difference Result 6723 states and 8720 transitions. [2020-10-14 19:05:31,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:05:31,919 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-10-14 19:05:31,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:31,934 INFO L225 Difference]: With dead ends: 6723 [2020-10-14 19:05:31,934 INFO L226 Difference]: Without dead ends: 3445 [2020-10-14 19:05:31,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:05:31,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2020-10-14 19:05:32,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 3427. [2020-10-14 19:05:32,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3427 states. [2020-10-14 19:05:32,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 4203 transitions. [2020-10-14 19:05:32,036 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 4203 transitions. Word has length 165 [2020-10-14 19:05:32,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:32,036 INFO L479 AbstractCegarLoop]: Abstraction has 3427 states and 4203 transitions. [2020-10-14 19:05:32,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:05:32,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 4203 transitions. [2020-10-14 19:05:32,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-14 19:05:32,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:32,047 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:32,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 19:05:32,048 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:32,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:32,048 INFO L82 PathProgramCache]: Analyzing trace with hash 2088023112, now seen corresponding path program 1 times [2020-10-14 19:05:32,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:32,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845771691] [2020-10-14 19:05:32,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:32,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:32,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:32,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:33,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:33,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:33,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:37,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:37,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-14 19:05:37,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 19:05:37,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 19:05:37,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:37,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:37,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 19:05:37,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 19:05:37,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-14 19:05:37,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:37,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:37,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:37,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:37,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:37,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:37,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:05:37,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:37,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:37,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:37,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:37,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:37,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:37,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:05:37,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:37,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:05:37,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:37,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:37,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:37,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:37,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 19:05:37,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:37,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:05:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:37,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:37,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:37,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:37,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 19:05:37,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:37,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 19:05:37,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:37,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 19:05:37,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:37,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 19:05:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:37,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:37,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:37,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:37,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 19:05:37,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:37,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 19:05:37,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:37,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:37,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:37,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:37,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 19:05:37,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:37,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 19:05:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:37,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:37,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:37,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 19:05:37,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:37,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 19:05:37,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:37,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:37,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:37,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:37,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 19:05:37,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:37,646 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 213 proven. 38 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-14 19:05:37,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845771691] [2020-10-14 19:05:37,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:37,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 19:05:37,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484639227] [2020-10-14 19:05:37,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 19:05:37,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:37,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 19:05:37,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-14 19:05:37,648 INFO L87 Difference]: Start difference. First operand 3427 states and 4203 transitions. Second operand 9 states. [2020-10-14 19:05:39,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:39,900 INFO L93 Difference]: Finished difference Result 8697 states and 10979 transitions. [2020-10-14 19:05:39,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 19:05:39,901 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 243 [2020-10-14 19:05:39,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:39,922 INFO L225 Difference]: With dead ends: 8697 [2020-10-14 19:05:39,922 INFO L226 Difference]: Without dead ends: 4837 [2020-10-14 19:05:39,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-10-14 19:05:39,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4837 states. [2020-10-14 19:05:40,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4837 to 4757. [2020-10-14 19:05:40,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4757 states. [2020-10-14 19:05:40,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4757 states to 4757 states and 5459 transitions. [2020-10-14 19:05:40,045 INFO L78 Accepts]: Start accepts. Automaton has 4757 states and 5459 transitions. Word has length 243 [2020-10-14 19:05:40,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:40,045 INFO L479 AbstractCegarLoop]: Abstraction has 4757 states and 5459 transitions. [2020-10-14 19:05:40,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 19:05:40,045 INFO L276 IsEmpty]: Start isEmpty. Operand 4757 states and 5459 transitions. [2020-10-14 19:05:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-14 19:05:40,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:40,057 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-14 19:05:40,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 19:05:40,058 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:40,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:40,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1734665306, now seen corresponding path program 1 times [2020-10-14 19:05:40,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:40,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464396012] [2020-10-14 19:05:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:40,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:40,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:40,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-14 19:05:40,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:40,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-10-14 19:05:40,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:40,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:40,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-14 19:05:40,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 19:05:40,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:40,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:40,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:40,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:40,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:40,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:40,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:05:40,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:40,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:40,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:40,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:40,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:40,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:40,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:40,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:40,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:40,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:05:40,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:40,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 19:05:40,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:40,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:40,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:40,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 19:05:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:40,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:40,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:40,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 19:05:40,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:40,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 19:05:40,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:40,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:40,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:40,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 19:05:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:40,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:40,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:40,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 19:05:40,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:40,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 19:05:40,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:40,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:40,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:40,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:40,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 19:05:40,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:40,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 19:05:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:40,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:40,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:40,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 19:05:40,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:40,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 19:05:40,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:40,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:40,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:40,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:40,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 19:05:40,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:40,934 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 269 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-14 19:05:40,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464396012] [2020-10-14 19:05:40,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:40,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:05:40,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900205764] [2020-10-14 19:05:40,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:05:40,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:40,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:05:40,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:05:40,936 INFO L87 Difference]: Start difference. First operand 4757 states and 5459 transitions. Second operand 7 states. [2020-10-14 19:05:42,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:42,238 INFO L93 Difference]: Finished difference Result 9373 states and 10771 transitions. [2020-10-14 19:05:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 19:05:42,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 257 [2020-10-14 19:05:42,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:42,254 INFO L225 Difference]: With dead ends: 9373 [2020-10-14 19:05:42,254 INFO L226 Difference]: Without dead ends: 4757 [2020-10-14 19:05:42,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 19:05:42,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2020-10-14 19:05:42,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 4217. [2020-10-14 19:05:42,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4217 states. [2020-10-14 19:05:42,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 4710 transitions. [2020-10-14 19:05:42,359 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 4710 transitions. Word has length 257 [2020-10-14 19:05:42,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:42,359 INFO L479 AbstractCegarLoop]: Abstraction has 4217 states and 4710 transitions. [2020-10-14 19:05:42,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:05:42,359 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 4710 transitions. [2020-10-14 19:05:42,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-14 19:05:42,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:42,371 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:42,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 19:05:42,371 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:42,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:42,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1986135978, now seen corresponding path program 1 times [2020-10-14 19:05:42,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:42,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297839517] [2020-10-14 19:05:42,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 19:05:42,429 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 19:05:42,430 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 19:05:42,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 19:05:42,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:05:42 BoogieIcfgContainer [2020-10-14 19:05:42,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 19:05:42,477 INFO L168 Benchmark]: Toolchain (without parser) took 52862.32 ms. Allocated memory was 148.4 MB in the beginning and 925.4 MB in the end (delta: 777.0 MB). Free memory was 102.8 MB in the beginning and 341.3 MB in the end (delta: -238.5 MB). Peak memory consumption was 538.5 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:42,477 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 19:05:42,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.51 ms. Allocated memory was 148.4 MB in the beginning and 206.0 MB in the end (delta: 57.7 MB). Free memory was 102.8 MB in the beginning and 171.1 MB in the end (delta: -68.4 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:42,479 INFO L168 Benchmark]: Boogie Preprocessor took 98.90 ms. Allocated memory is still 206.0 MB. Free memory was 171.1 MB in the beginning and 166.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:42,479 INFO L168 Benchmark]: RCFGBuilder took 1207.58 ms. Allocated memory was 206.0 MB in the beginning and 237.0 MB in the end (delta: 30.9 MB). Free memory was 166.1 MB in the beginning and 175.1 MB in the end (delta: -8.9 MB). Peak memory consumption was 78.1 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:42,480 INFO L168 Benchmark]: TraceAbstraction took 50818.59 ms. Allocated memory was 237.0 MB in the beginning and 925.4 MB in the end (delta: 688.4 MB). Free memory was 175.1 MB in the beginning and 341.3 MB in the end (delta: -166.2 MB). Peak memory consumption was 522.1 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:42,483 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 732.51 ms. Allocated memory was 148.4 MB in the beginning and 206.0 MB in the end (delta: 57.7 MB). Free memory was 102.8 MB in the beginning and 171.1 MB in the end (delta: -68.4 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.90 ms. Allocated memory is still 206.0 MB. Free memory was 171.1 MB in the beginning and 166.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1207.58 ms. Allocated memory was 206.0 MB in the beginning and 237.0 MB in the end (delta: 30.9 MB). Free memory was 166.1 MB in the beginning and 175.1 MB in the end (delta: -8.9 MB). Peak memory consumption was 78.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 50818.59 ms. Allocated memory was 237.0 MB in the beginning and 925.4 MB in the end (delta: 688.4 MB). Free memory was 175.1 MB in the beginning and 341.3 MB in the end (delta: -166.2 MB). Peak memory consumption was 522.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 422]: 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 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 TRUE (((((((!(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)) [L279] a20 = 1 [L280] a8 = 13 [L281] a16 = 4 [L282] a7 = 0 [L283] a21 = 1 [L284] a17 = 0 [L285] 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 FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L412] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L415] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1))) [L418] COND FALSE !(((((((!(a17==1)&&(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L421] COND TRUE ((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1)) [L422] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 50.7s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 20.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 360 SDtfs, 5191 SDslu, 437 SDs, 0 SdLazy, 10765 SolverSat, 1601 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 104 SyntacticMatches, 6 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4757occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 1385 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 27.4s InterpolantComputationTime, 2213 NumberOfCodeBlocks, 2213 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1932 ConstructedInterpolants, 0 QuantifiedInterpolants, 1995258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 1092/1159 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...