/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 SingleStatement --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:25:47,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:25:47,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:25:47,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:25:47,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:25:47,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:25:47,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:25:47,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:25:47,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:25:47,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:25:47,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:25:47,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:25:47,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:25:47,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:25:47,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:25:47,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:25:47,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:25:47,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:25:47,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:25:47,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:25:47,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:25:47,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:25:47,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:25:47,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:25:47,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:25:47,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:25:47,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:25:47,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:25:47,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:25:47,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:25:47,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:25:47,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:25:47,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:25:47,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:25:47,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:25:47,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:25:47,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:25:47,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:25:47,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:25:47,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:25:47,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:25:47,719 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 [2020-09-24 19:25:47,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:25:47,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:25:47,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:25:47,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:25:47,774 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:25:47,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:25:47,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:25:47,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:25:47,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:25:47,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:25:47,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:25:47,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:25:47,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:25:47,778 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:25:47,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:25:47,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:25:47,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:25:47,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:25:47,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:25:47,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:25:47,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:25:47,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:25:47,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:25:47,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:25:47,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:25:47,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:25:47,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:25:47,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:25:47,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:25:47,781 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 -> SingleStatement 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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:25:48,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:25:48,253 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:25:48,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:25:48,262 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:25:48,263 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:25:48,264 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label44.c [2020-09-24 19:25:48,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f13e7d5c7/9d0324c2567f4bab89a7d9e7a1927419/FLAG77eb8f5bc [2020-09-24 19:25:48,991 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:25:48,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label44.c [2020-09-24 19:25:49,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f13e7d5c7/9d0324c2567f4bab89a7d9e7a1927419/FLAG77eb8f5bc [2020-09-24 19:25:49,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f13e7d5c7/9d0324c2567f4bab89a7d9e7a1927419 [2020-09-24 19:25:49,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:25:49,259 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:25:49,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:25:49,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:25:49,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:25:49,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:25:49" (1/1) ... [2020-09-24 19:25:49,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e37eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:25:49, skipping insertion in model container [2020-09-24 19:25:49,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:25:49" (1/1) ... [2020-09-24 19:25:49,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:25:49,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:25:49,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:25:49,839 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:25:50,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:25:50,097 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:25:50,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:25:50 WrapperNode [2020-09-24 19:25:50,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:25:50,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:25:50,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:25:50,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:25:50,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:25:50" (1/1) ... [2020-09-24 19:25:50,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:25:50" (1/1) ... [2020-09-24 19:25:50,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:25:50" (1/1) ... [2020-09-24 19:25:50,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:25:50" (1/1) ... [2020-09-24 19:25:50,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:25:50" (1/1) ... [2020-09-24 19:25:50,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:25:50" (1/1) ... [2020-09-24 19:25:50,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:25:50" (1/1) ... [2020-09-24 19:25:50,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:25:50,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:25:50,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:25:50,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:25:50,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:25:50" (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 [2020-09-24 19:25:50,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:25:50,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:25:50,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-24 19:25:50,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:25:50,352 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-24 19:25:50,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:25:50,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:25:50,352 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 19:25:50,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:25:50,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:25:50,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:25:51,805 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:25:51,805 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 19:25:51,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:25:51 BoogieIcfgContainer [2020-09-24 19:25:51,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:25:51,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:25:51,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:25:51,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:25:51,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:25:49" (1/3) ... [2020-09-24 19:25:51,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f7315f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:25:51, skipping insertion in model container [2020-09-24 19:25:51,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:25:50" (2/3) ... [2020-09-24 19:25:51,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f7315f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:25:51, skipping insertion in model container [2020-09-24 19:25:51,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:25:51" (3/3) ... [2020-09-24 19:25:51,835 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label44.c [2020-09-24 19:25:51,847 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:25:51,862 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:25:51,885 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:25:51,928 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:25:51,930 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:25:51,930 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:25:51,930 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:25:51,930 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:25:51,930 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:25:51,930 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:25:51,931 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:25:51,973 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states. [2020-09-24 19:25:51,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-24 19:25:51,997 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:25:51,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:25:51,999 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:25:52,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:25:52,008 INFO L82 PathProgramCache]: Analyzing trace with hash 948138895, now seen corresponding path program 1 times [2020-09-24 19:25:52,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:25:52,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766651903] [2020-09-24 19:25:52,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:25:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:25:52,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:25:52,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:25:52,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:25:52,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:25:53,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:25:53,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:25:53,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 19:25:53,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:25:53,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1151 [2020-09-24 19:25:53,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:25:53,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:25:53,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 19:25:53,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-24 19:25:53,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:25:53,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:25:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:25:53,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:25:53,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:25:53,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:25:53,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:25:53,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 19:25:53,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:25:53,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:25:53,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:25:53,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 19:25:53,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:25:53,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:25:53,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766651903] [2020-09-24 19:25:53,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:25:53,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:25:53,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297309730] [2020-09-24 19:25:53,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:25:53,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:25:53,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:25:53,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:25:53,777 INFO L87 Difference]: Start difference. First operand 525 states. Second operand 4 states. [2020-09-24 19:25:56,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:25:56,031 INFO L93 Difference]: Finished difference Result 1235 states and 1633 transitions. [2020-09-24 19:25:56,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:25:56,034 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2020-09-24 19:25:56,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:25:56,059 INFO L225 Difference]: With dead ends: 1235 [2020-09-24 19:25:56,060 INFO L226 Difference]: Without dead ends: 661 [2020-09-24 19:25:56,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:25:56,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2020-09-24 19:25:56,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 605. [2020-09-24 19:25:56,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-09-24 19:25:56,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 715 transitions. [2020-09-24 19:25:56,178 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 715 transitions. Word has length 112 [2020-09-24 19:25:56,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:25:56,179 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 715 transitions. [2020-09-24 19:25:56,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:25:56,179 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 715 transitions. [2020-09-24 19:25:56,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-24 19:25:56,186 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:25:56,187 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:25:56,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:25:56,187 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:25:56,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:25:56,208 INFO L82 PathProgramCache]: Analyzing trace with hash -88721492, now seen corresponding path program 1 times [2020-09-24 19:25:56,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:25:56,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241698963] [2020-09-24 19:25:56,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:25:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:25:56,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:25:56,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:25:56,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:25:57,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:25:57,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-24 19:25:57,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:25:57,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-09-24 19:25:57,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:25:57,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:25:57,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-24 19:25:57,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 19:25:57,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:25:57,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:25:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:25:57,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:25:57,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:25:57,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:25:57,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:25:57,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:25:57,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:25:57,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:25:57,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:25:57,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:25:57,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:25:57,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 19:25:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:25:57,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:25:57,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:25:57,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 19:25:57,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:25:57,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:25:57,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:25:57,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:25:57,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:25:57,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:25:57,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-24 19:25:57,601 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:25:57,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241698963] [2020-09-24 19:25:57,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:25:57,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-24 19:25:57,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417184130] [2020-09-24 19:25:57,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:25:57,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:25:57,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:25:57,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:25:57,608 INFO L87 Difference]: Start difference. First operand 605 states and 715 transitions. Second operand 5 states. [2020-09-24 19:25:59,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:25:59,639 INFO L93 Difference]: Finished difference Result 1505 states and 1856 transitions. [2020-09-24 19:25:59,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:25:59,640 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-09-24 19:25:59,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:25:59,652 INFO L225 Difference]: With dead ends: 1505 [2020-09-24 19:25:59,652 INFO L226 Difference]: Without dead ends: 924 [2020-09-24 19:25:59,655 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 [2020-09-24 19:25:59,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-09-24 19:25:59,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 891. [2020-09-24 19:25:59,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-09-24 19:25:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1084 transitions. [2020-09-24 19:25:59,717 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1084 transitions. Word has length 129 [2020-09-24 19:25:59,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:25:59,718 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1084 transitions. [2020-09-24 19:25:59,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:25:59,718 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1084 transitions. [2020-09-24 19:25:59,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 19:25:59,726 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:25:59,726 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:25:59,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:25:59,727 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:25:59,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:25:59,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1474286310, now seen corresponding path program 1 times [2020-09-24 19:25:59,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:25:59,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460279346] [2020-09-24 19:25:59,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:25:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:25:59,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:25:59,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:00,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:00,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:26:00,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:26:00,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-09-24 19:26:00,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:00,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:26:00,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-24 19:26:00,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 19:26:00,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:00,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:26:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:00,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:00,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:00,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:26:00,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:00,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:26:00,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:26:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:26:00,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:00,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 19:26:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:00,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:00,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:00,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 19:26:00,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:00,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:26:00,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:26:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:26:00,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:01,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-24 19:26:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:01,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:01,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:01,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:26:01,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:01,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-24 19:26:01,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:01,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:26:01,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:26:01,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:26:01,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:26:01,220 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:26:01,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [460279346] [2020-09-24 19:26:01,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:26:01,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:26:01,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181881398] [2020-09-24 19:26:01,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:26:01,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:26:01,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:26:01,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:26:01,223 INFO L87 Difference]: Start difference. First operand 891 states and 1084 transitions. Second operand 7 states. [2020-09-24 19:26:03,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:26:03,124 INFO L93 Difference]: Finished difference Result 2144 states and 2702 transitions. [2020-09-24 19:26:03,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:26:03,125 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2020-09-24 19:26:03,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:26:03,134 INFO L225 Difference]: With dead ends: 2144 [2020-09-24 19:26:03,134 INFO L226 Difference]: Without dead ends: 1277 [2020-09-24 19:26:03,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:26:03,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2020-09-24 19:26:03,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1077. [2020-09-24 19:26:03,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1077 states. [2020-09-24 19:26:03,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1328 transitions. [2020-09-24 19:26:03,183 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1328 transitions. Word has length 174 [2020-09-24 19:26:03,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:26:03,184 INFO L479 AbstractCegarLoop]: Abstraction has 1077 states and 1328 transitions. [2020-09-24 19:26:03,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:26:03,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1328 transitions. [2020-09-24 19:26:03,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 19:26:03,189 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:26:03,189 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:26:03,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:26:03,190 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:26:03,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:26:03,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1304892871, now seen corresponding path program 1 times [2020-09-24 19:26:03,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:26:03,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188205185] [2020-09-24 19:26:03,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:26:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:03,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:03,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:03,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:03,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:03,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:03,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:04,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:04,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:04,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 19:26:04,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:26:04,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:26:04,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:04,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:26:04,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-24 19:26:04,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 19:26:04,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:04,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:26:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:04,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:04,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:04,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:26:04,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:04,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:26:04,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:26:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:26:04,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:04,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 19:26:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:04,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:04,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:04,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 19:26:04,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:04,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 19:26:04,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:26:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:26:04,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:04,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-24 19:26:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:04,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:04,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:04,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:26:04,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:04,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 19:26:04,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:04,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:26:04,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:26:04,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:26:04,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:04,733 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:26:04,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188205185] [2020-09-24 19:26:04,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:26:04,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:26:04,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811157571] [2020-09-24 19:26:04,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:26:04,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:26:04,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:26:04,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:26:04,738 INFO L87 Difference]: Start difference. First operand 1077 states and 1328 transitions. Second operand 8 states. [2020-09-24 19:26:05,389 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-09-24 19:26:08,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:26:08,193 INFO L93 Difference]: Finished difference Result 2857 states and 3593 transitions. [2020-09-24 19:26:08,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 19:26:08,199 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 181 [2020-09-24 19:26:08,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:26:08,209 INFO L225 Difference]: With dead ends: 2857 [2020-09-24 19:26:08,210 INFO L226 Difference]: Without dead ends: 1804 [2020-09-24 19:26:08,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-09-24 19:26:08,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2020-09-24 19:26:08,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 1701. [2020-09-24 19:26:08,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1701 states. [2020-09-24 19:26:08,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2087 transitions. [2020-09-24 19:26:08,270 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2087 transitions. Word has length 181 [2020-09-24 19:26:08,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:26:08,270 INFO L479 AbstractCegarLoop]: Abstraction has 1701 states and 2087 transitions. [2020-09-24 19:26:08,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:26:08,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2087 transitions. [2020-09-24 19:26:08,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 19:26:08,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:26:08,279 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:26:08,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:26:08,279 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:26:08,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:26:08,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1069377590, now seen corresponding path program 1 times [2020-09-24 19:26:08,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:26:08,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642289027] [2020-09-24 19:26:08,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:26:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:08,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:08,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:08,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:08,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:08,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:09,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:09,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:09,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-24 19:26:09,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:26:09,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-24 19:26:09,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:09,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:26:09,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-09-24 19:26:09,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-24 19:26:09,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:26:09,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:26:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:09,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:09,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:09,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:26:09,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:09,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:26:09,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:26:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:26:09,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:26:09,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 19:26:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:09,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:09,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:09,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 19:26:09,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:09,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:26:09,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:09,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:26:09,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:09,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:26:09,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:26:09,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-24 19:26:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:09,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:09,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:09,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 19:26:09,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:09,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 19:26:09,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:09,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:26:09,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:09,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 19:26:09,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:26:09,840 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-24 19:26:09,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642289027] [2020-09-24 19:26:09,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:26:09,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-24 19:26:09,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139685105] [2020-09-24 19:26:09,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:26:09,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:26:09,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:26:09,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:26:09,844 INFO L87 Difference]: Start difference. First operand 1701 states and 2087 transitions. Second operand 5 states. [2020-09-24 19:26:11,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:26:11,822 INFO L93 Difference]: Finished difference Result 2314 states and 2862 transitions. [2020-09-24 19:26:11,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:26:11,825 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 196 [2020-09-24 19:26:11,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:26:11,838 INFO L225 Difference]: With dead ends: 2314 [2020-09-24 19:26:11,838 INFO L226 Difference]: Without dead ends: 2312 [2020-09-24 19:26:11,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:26:11,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2020-09-24 19:26:11,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 1701. [2020-09-24 19:26:11,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1701 states. [2020-09-24 19:26:11,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2090 transitions. [2020-09-24 19:26:11,933 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2090 transitions. Word has length 196 [2020-09-24 19:26:11,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:26:11,934 INFO L479 AbstractCegarLoop]: Abstraction has 1701 states and 2090 transitions. [2020-09-24 19:26:11,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:26:11,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2090 transitions. [2020-09-24 19:26:11,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 19:26:11,942 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:26:11,943 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-24 19:26:11,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:26:11,943 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:26:11,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:26:11,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1668073877, now seen corresponding path program 1 times [2020-09-24 19:26:11,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:26:11,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65983590] [2020-09-24 19:26:11,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:26:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:12,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:12,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:13,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:13,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-09-24 19:26:13,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:26:13,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1042 [2020-09-24 19:26:13,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:26:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-24 19:26:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 19:26:13,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:26:13,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:26:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:13,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:13,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:13,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:26:13,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:13,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:26:13,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:13,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:26:13,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:13,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:26:13,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:13,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 19:26:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:13,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:13,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:13,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 19:26:13,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:13,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:26:13,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:13,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:26:13,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:13,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:26:13,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:13,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-24 19:26:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:13,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:13,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:13,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 19:26:13,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:13,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 19:26:13,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:26:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:13,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:26:13,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:26:13,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-24 19:26:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:13,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:13,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:13,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-24 19:26:13,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:13,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 19:26:13,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:13,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:26:13,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:26:13,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 19:26:13,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:13,452 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 19:26:13,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65983590] [2020-09-24 19:26:13,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:26:13,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:26:13,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560269769] [2020-09-24 19:26:13,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:26:13,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:26:13,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:26:13,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:26:13,455 INFO L87 Difference]: Start difference. First operand 1701 states and 2090 transitions. Second operand 7 states. [2020-09-24 19:26:16,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:26:16,134 INFO L93 Difference]: Finished difference Result 4264 states and 5325 transitions. [2020-09-24 19:26:16,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:26:16,135 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2020-09-24 19:26:16,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:26:16,148 INFO L225 Difference]: With dead ends: 4264 [2020-09-24 19:26:16,148 INFO L226 Difference]: Without dead ends: 2587 [2020-09-24 19:26:16,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:26:16,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2020-09-24 19:26:16,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 2482. [2020-09-24 19:26:16,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2482 states. [2020-09-24 19:26:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 3073 transitions. [2020-09-24 19:26:16,231 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 3073 transitions. Word has length 217 [2020-09-24 19:26:16,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:26:16,231 INFO L479 AbstractCegarLoop]: Abstraction has 2482 states and 3073 transitions. [2020-09-24 19:26:16,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:26:16,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 3073 transitions. [2020-09-24 19:26:16,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-09-24 19:26:16,244 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:26:16,244 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:26:16,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:26:16,245 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:26:16,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:26:16,245 INFO L82 PathProgramCache]: Analyzing trace with hash -605140127, now seen corresponding path program 1 times [2020-09-24 19:26:16,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:26:16,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [156622331] [2020-09-24 19:26:16,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:26:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:16,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:16,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:16,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:16,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:16,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:17,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:17,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:17,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:17,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 19:26:17,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:26:17,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1021 [2020-09-24 19:26:17,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:17,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:26:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 19:26:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 19:26:17,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:17,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:26:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:17,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:17,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:17,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:26:17,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:17,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:26:17,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:17,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:26:17,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:17,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:26:17,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:26:17,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 19:26:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:17,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:17,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:17,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 19:26:17,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:17,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 19:26:17,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:26:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:26:17,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:17,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-24 19:26:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:17,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:17,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:17,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:26:17,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:17,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 19:26:17,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:26:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:17,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:26:17,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:26:17,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:26:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:17,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:17,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:17,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-24 19:26:17,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:17,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-24 19:26:17,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:17,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:26:17,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:26:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 19:26:17,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:17,889 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-24 19:26:17,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [156622331] [2020-09-24 19:26:17,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:26:17,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:26:17,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101174775] [2020-09-24 19:26:17,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:26:17,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:26:17,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:26:17,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:26:17,895 INFO L87 Difference]: Start difference. First operand 2482 states and 3073 transitions. Second operand 7 states. [2020-09-24 19:26:20,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:26:20,938 INFO L93 Difference]: Finished difference Result 6790 states and 8878 transitions. [2020-09-24 19:26:20,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:26:20,938 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 238 [2020-09-24 19:26:20,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:26:20,959 INFO L225 Difference]: With dead ends: 6790 [2020-09-24 19:26:20,960 INFO L226 Difference]: Without dead ends: 4332 [2020-09-24 19:26:20,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:26:20,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4332 states. [2020-09-24 19:26:21,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4332 to 3847. [2020-09-24 19:26:21,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3847 states. [2020-09-24 19:26:21,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3847 states to 3847 states and 4706 transitions. [2020-09-24 19:26:21,107 INFO L78 Accepts]: Start accepts. Automaton has 3847 states and 4706 transitions. Word has length 238 [2020-09-24 19:26:21,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:26:21,108 INFO L479 AbstractCegarLoop]: Abstraction has 3847 states and 4706 transitions. [2020-09-24 19:26:21,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:26:21,108 INFO L276 IsEmpty]: Start isEmpty. Operand 3847 states and 4706 transitions. [2020-09-24 19:26:21,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-24 19:26:21,123 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:26:21,123 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:26:21,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:26:21,124 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:26:21,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:26:21,124 INFO L82 PathProgramCache]: Analyzing trace with hash -472491071, now seen corresponding path program 1 times [2020-09-24 19:26:21,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:26:21,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980480461] [2020-09-24 19:26:21,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:26:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:21,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:21,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:21,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:22,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:22,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:22,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-09-24 19:26:22,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:26:22,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1045 [2020-09-24 19:26:22,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:22,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:26:22,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-09-24 19:26:22,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-24 19:26:22,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:22,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:26:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:22,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:22,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:22,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:26:22,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:22,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:26:22,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:22,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:26:22,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:22,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:26:22,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:22,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-24 19:26:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:22,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:22,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:22,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 19:26:22,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:22,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:26:22,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:22,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:26:22,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:22,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:26:22,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:22,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-24 19:26:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:22,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:22,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:22,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 19:26:22,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:22,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 19:26:22,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:26:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:26:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:26:22,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:26:22,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:26:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:26:22,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:26:22,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:26:22,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-24 19:26:22,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:26:22,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-24 19:26:22,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:26:22,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:26:22,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:26:22,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 19:26:22,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:26:22,719 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 19:26:22,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980480461] [2020-09-24 19:26:22,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:26:22,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:26:22,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513672083] [2020-09-24 19:26:22,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:26:22,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:26:22,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:26:22,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:26:22,722 INFO L87 Difference]: Start difference. First operand 3847 states and 4706 transitions. Second operand 8 states. [2020-09-24 19:26:25,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:26:25,632 INFO L93 Difference]: Finished difference Result 9089 states and 11185 transitions. [2020-09-24 19:26:25,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:26:25,632 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 239 [2020-09-24 19:26:25,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:26:25,653 INFO L225 Difference]: With dead ends: 9089 [2020-09-24 19:26:25,653 INFO L226 Difference]: Without dead ends: 5276 [2020-09-24 19:26:25,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:26:25,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5276 states. [2020-09-24 19:26:25,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5276 to 4832. [2020-09-24 19:26:25,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4832 states. [2020-09-24 19:26:25,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4832 states to 4832 states and 5768 transitions. [2020-09-24 19:26:25,806 INFO L78 Accepts]: Start accepts. Automaton has 4832 states and 5768 transitions. Word has length 239 [2020-09-24 19:26:25,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:26:25,807 INFO L479 AbstractCegarLoop]: Abstraction has 4832 states and 5768 transitions. [2020-09-24 19:26:25,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:26:25,807 INFO L276 IsEmpty]: Start isEmpty. Operand 4832 states and 5768 transitions. [2020-09-24 19:26:25,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-09-24 19:26:25,828 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:26:25,828 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-24 19:26:25,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:26:25,829 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:26:25,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:26:25,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1820249468, now seen corresponding path program 1 times [2020-09-24 19:26:25,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:26:25,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796476755] [2020-09-24 19:26:25,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:26:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:26:25,901 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:26:25,901 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:26:25,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 19:26:25,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:26:25 BoogieIcfgContainer [2020-09-24 19:26:25,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:26:25,974 INFO L168 Benchmark]: Toolchain (without parser) took 36714.78 ms. Allocated memory was 140.5 MB in the beginning and 633.9 MB in the end (delta: 493.4 MB). Free memory was 102.3 MB in the beginning and 360.7 MB in the end (delta: -258.3 MB). Peak memory consumption was 235.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:26:25,975 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 19:26:25,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 840.69 ms. Allocated memory was 140.5 MB in the beginning and 206.6 MB in the end (delta: 66.1 MB). Free memory was 101.7 MB in the beginning and 172.5 MB in the end (delta: -70.9 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2020-09-24 19:26:25,976 INFO L168 Benchmark]: Boogie Preprocessor took 163.69 ms. Allocated memory is still 206.6 MB. Free memory was 172.5 MB in the beginning and 167.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:26:25,980 INFO L168 Benchmark]: RCFGBuilder took 1557.84 ms. Allocated memory was 206.6 MB in the beginning and 239.1 MB in the end (delta: 32.5 MB). Free memory was 167.5 MB in the beginning and 158.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-09-24 19:26:25,981 INFO L168 Benchmark]: TraceAbstraction took 34142.26 ms. Allocated memory was 239.1 MB in the beginning and 633.9 MB in the end (delta: 394.8 MB). Free memory was 158.2 MB in the beginning and 360.7 MB in the end (delta: -202.5 MB). Peak memory consumption was 192.3 MB. Max. memory is 7.1 GB. [2020-09-24 19:26:25,992 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 840.69 ms. Allocated memory was 140.5 MB in the beginning and 206.6 MB in the end (delta: 66.1 MB). Free memory was 101.7 MB in the beginning and 172.5 MB in the end (delta: -70.9 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 163.69 ms. Allocated memory is still 206.6 MB. Free memory was 172.5 MB in the beginning and 167.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1557.84 ms. Allocated memory was 206.6 MB in the beginning and 239.1 MB in the end (delta: 32.5 MB). Free memory was 167.5 MB in the beginning and 158.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34142.26 ms. Allocated memory was 239.1 MB in the beginning and 633.9 MB in the end (delta: 394.8 MB). Free memory was 158.2 MB in the beginning and 360.7 MB in the end (delta: -202.5 MB). Peak memory consumption was 192.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 428]: 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 TRUE (((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8)) [L32] a16 = 5 [L33] a20 = 0 [L34] return 24; [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 TRUE ((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15))) [L266] a17 = 0 [L267] return 24; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND TRUE ((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5)) [L313] a8 = 13 [L314] a16 = 4 [L315] 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 FALSE !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1))) [L424] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L427] COND TRUE ((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1)) [L428] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 525 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.9s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 20.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3074 SDtfs, 7952 SDslu, 3462 SDs, 0 SdLazy, 11393 SolverSat, 987 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 77 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4832occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 2037 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 1740 NumberOfCodeBlocks, 1740 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1478 ConstructedInterpolants, 0 QuantifiedInterpolants, 801473 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 669/682 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...