/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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/Problem02_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:28:12,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:28:12,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:28:12,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:28:12,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:28:12,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:28:12,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:28:12,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:28:12,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:28:12,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:28:12,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:28:12,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:28:12,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:28:12,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:28:12,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:28:12,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:28:12,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:28:12,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:28:12,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:28:12,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:28:12,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:28:12,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:28:12,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:28:12,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:28:12,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:28:12,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:28:12,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:28:12,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:28:12,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:28:12,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:28:12,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:28:12,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:28:12,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:28:12,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:28:12,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:28:12,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:28:12,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:28:12,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:28:12,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:28:12,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:28:12,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:28:12,947 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 [2020-09-25 04:28:12,998 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:28:12,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:28:13,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:28:13,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:28:13,000 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:28:13,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:28:13,001 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:28:13,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:28:13,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:28:13,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:28:13,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:28:13,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:28:13,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:28:13,003 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:28:13,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:28:13,004 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:28:13,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:28:13,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:28:13,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:28:13,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:28:13,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:28:13,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:28:13,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:28:13,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:28:13,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:28:13,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:28:13,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:28:13,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:28:13,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:28:13,007 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=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;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=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;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=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;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=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;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=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;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=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:28:13,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:28:13,473 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:28:13,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:28:13,479 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:28:13,479 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:28:13,481 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-09-25 04:28:13,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e9816824/3f57ed3a6e9540f7b62dd36da8de336e/FLAG772f4141a [2020-09-25 04:28:14,253 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:28:14,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-09-25 04:28:14,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e9816824/3f57ed3a6e9540f7b62dd36da8de336e/FLAG772f4141a [2020-09-25 04:28:14,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e9816824/3f57ed3a6e9540f7b62dd36da8de336e [2020-09-25 04:28:14,451 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:28:14,457 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:28:14,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:28:14,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:28:14,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:28:14,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:28:14" (1/1) ... [2020-09-25 04:28:14,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c38a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:14, skipping insertion in model container [2020-09-25 04:28:14,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:28:14" (1/1) ... [2020-09-25 04:28:14,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:28:14,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:28:15,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:28:15,104 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:28:15,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:28:15,213 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:28:15,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:15 WrapperNode [2020-09-25 04:28:15,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:28:15,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:28:15,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:28:15,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:28:15,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:15" (1/1) ... [2020-09-25 04:28:15,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:15" (1/1) ... [2020-09-25 04:28:15,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:15" (1/1) ... [2020-09-25 04:28:15,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:15" (1/1) ... [2020-09-25 04:28:15,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:15" (1/1) ... [2020-09-25 04:28:15,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:15" (1/1) ... [2020-09-25 04:28:15,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:15" (1/1) ... [2020-09-25 04:28:15,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:28:15,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:28:15,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:28:15,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:28:15,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:15" (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 [2020-09-25 04:28:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:28:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:28:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 04:28:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:28:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 04:28:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:28:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:28:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 04:28:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:28:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:28:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:28:16,699 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:28:16,700 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:28:16,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:28:16 BoogieIcfgContainer [2020-09-25 04:28:16,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:28:16,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:28:16,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:28:16,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:28:16,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:28:14" (1/3) ... [2020-09-25 04:28:16,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3795cd32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:28:16, skipping insertion in model container [2020-09-25 04:28:16,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:28:15" (2/3) ... [2020-09-25 04:28:16,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3795cd32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:28:16, skipping insertion in model container [2020-09-25 04:28:16,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:28:16" (3/3) ... [2020-09-25 04:28:16,718 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label43.c [2020-09-25 04:28:16,729 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:28:16,741 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:28:16,763 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:28:16,797 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:28:16,797 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:28:16,797 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:28:16,798 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:28:16,798 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:28:16,798 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:28:16,798 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:28:16,798 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:28:16,830 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 04:28:16,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 04:28:16,848 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:28:16,849 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] [2020-09-25 04:28:16,850 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:28:16,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:28:16,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1883432242, now seen corresponding path program 1 times [2020-09-25 04:28:16,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:28:16,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563676298] [2020-09-25 04:28:16,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:28:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:17,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:17,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:17,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:17,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:18,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:21,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:21,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:21,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:21,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 04:28:21,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 04:28:21,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4508 [2020-09-25 04:28:21,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:21,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:21,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:28:21,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 04:28:21,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 04:28:21,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:28:21,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:28:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:21,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:21,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:21,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:28:21,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:21,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 04:28:21,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:21,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:21,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:28:21,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:28:21,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 04:28:21,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:28:21,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:28:21,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1563676298] [2020-09-25 04:28:21,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:28:21,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:28:21,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982684637] [2020-09-25 04:28:21,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:28:21,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:28:21,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:28:21,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:28:21,970 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 4 states. [2020-09-25 04:28:24,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:28:24,313 INFO L93 Difference]: Finished difference Result 1396 states and 1850 transitions. [2020-09-25 04:28:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:28:24,315 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2020-09-25 04:28:24,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:28:24,340 INFO L225 Difference]: With dead ends: 1396 [2020-09-25 04:28:24,340 INFO L226 Difference]: Without dead ends: 788 [2020-09-25 04:28:24,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:28:24,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2020-09-25 04:28:24,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 665. [2020-09-25 04:28:24,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-09-25 04:28:24,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 813 transitions. [2020-09-25 04:28:24,453 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 813 transitions. Word has length 111 [2020-09-25 04:28:24,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:28:24,454 INFO L479 AbstractCegarLoop]: Abstraction has 665 states and 813 transitions. [2020-09-25 04:28:24,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:28:24,454 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 813 transitions. [2020-09-25 04:28:24,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-25 04:28:24,461 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:28:24,461 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] [2020-09-25 04:28:24,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:28:24,462 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:28:24,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:28:24,463 INFO L82 PathProgramCache]: Analyzing trace with hash -184227746, now seen corresponding path program 1 times [2020-09-25 04:28:24,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:28:24,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179778302] [2020-09-25 04:28:24,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:28:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:24,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:25,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:25,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 04:28:25,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:25,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-09-25 04:28:25,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:25,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:25,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:28:25,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:28:25,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:28:25,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:28:25,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:28:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:25,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:25,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:25,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:28:25,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:25,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 04:28:25,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:25,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:25,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:28:25,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:28:25,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:28:25,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:28:25,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:28:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:25,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:25,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:25,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:28:25,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:25,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 04:28:25,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:25,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:25,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:28:25,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:28:25,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 04:28:25,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:28:25,307 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:28:25,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179778302] [2020-09-25 04:28:25,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:28:25,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:28:25,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129406338] [2020-09-25 04:28:25,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:28:25,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:28:25,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:28:25,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:28:25,311 INFO L87 Difference]: Start difference. First operand 665 states and 813 transitions. Second operand 7 states. [2020-09-25 04:28:27,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:28:27,405 INFO L93 Difference]: Finished difference Result 1716 states and 2196 transitions. [2020-09-25 04:28:27,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:28:27,407 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 129 [2020-09-25 04:28:27,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:28:27,414 INFO L225 Difference]: With dead ends: 1716 [2020-09-25 04:28:27,414 INFO L226 Difference]: Without dead ends: 1073 [2020-09-25 04:28:27,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:28:27,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2020-09-25 04:28:27,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 995. [2020-09-25 04:28:27,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-09-25 04:28:27,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1183 transitions. [2020-09-25 04:28:27,489 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1183 transitions. Word has length 129 [2020-09-25 04:28:27,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:28:27,490 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1183 transitions. [2020-09-25 04:28:27,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:28:27,490 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1183 transitions. [2020-09-25 04:28:27,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-25 04:28:27,494 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:28:27,494 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:28:27,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:28:27,495 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:28:27,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:28:27,495 INFO L82 PathProgramCache]: Analyzing trace with hash 980037392, now seen corresponding path program 1 times [2020-09-25 04:28:27,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:28:27,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193782384] [2020-09-25 04:28:27,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:28:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:27,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:27,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:27,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:28,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:28,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:29,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:29,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:30,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:31,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:32,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:32,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 04:28:32,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 04:28:32,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4710 [2020-09-25 04:28:32,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:32,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:32,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:28:32,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 04:28:32,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-25 04:28:32,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:28:32,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:28:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:32,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:32,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:32,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:28:32,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:32,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:28:32,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:32,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:28:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:28:32,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:28:32,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:28:32,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:28:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:32,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:32,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:32,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 04:28:32,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:32,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:28:32,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:32,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:32,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:28:32,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:28:32,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:28:32,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:28:32,425 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:28:32,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193782384] [2020-09-25 04:28:32,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:28:32,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 04:28:32,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209274780] [2020-09-25 04:28:32,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:28:32,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:28:32,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:28:32,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:28:32,427 INFO L87 Difference]: Start difference. First operand 995 states and 1183 transitions. Second operand 5 states. [2020-09-25 04:28:34,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:28:34,219 INFO L93 Difference]: Finished difference Result 2587 states and 3204 transitions. [2020-09-25 04:28:34,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:28:34,220 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-09-25 04:28:34,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:28:34,229 INFO L225 Difference]: With dead ends: 2587 [2020-09-25 04:28:34,229 INFO L226 Difference]: Without dead ends: 1614 [2020-09-25 04:28:34,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:28:34,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2020-09-25 04:28:34,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1602. [2020-09-25 04:28:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1602 states. [2020-09-25 04:28:34,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1602 states to 1602 states and 1957 transitions. [2020-09-25 04:28:34,286 INFO L78 Accepts]: Start accepts. Automaton has 1602 states and 1957 transitions. Word has length 133 [2020-09-25 04:28:34,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:28:34,287 INFO L479 AbstractCegarLoop]: Abstraction has 1602 states and 1957 transitions. [2020-09-25 04:28:34,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:28:34,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1602 states and 1957 transitions. [2020-09-25 04:28:34,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-25 04:28:34,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:28:34,294 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:28:34,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:28:34,295 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:28:34,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:28:34,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1044088891, now seen corresponding path program 1 times [2020-09-25 04:28:34,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:28:34,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556835533] [2020-09-25 04:28:34,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:28:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:34,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:34,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:34,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-25 04:28:34,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:34,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-25 04:28:34,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:34,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:34,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:28:34,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 04:28:34,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 04:28:34,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:28:34,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:28:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:34,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:34,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:34,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:28:34,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:34,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:28:34,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:34,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:34,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:28:34,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:28:34,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:28:34,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:28:34,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:28:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:34,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:34,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:34,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 04:28:34,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:34,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:28:34,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:34,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:34,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:28:34,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:28:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:28:34,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:28:34,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 04:28:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:34,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:34,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:34,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:28:34,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:34,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 04:28:34,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:34,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:34,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:28:34,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:28:34,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 04:28:34,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:28:34,939 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:28:34,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556835533] [2020-09-25 04:28:34,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:28:34,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 04:28:34,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436303585] [2020-09-25 04:28:34,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:28:34,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:28:34,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:28:34,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:28:34,943 INFO L87 Difference]: Start difference. First operand 1602 states and 1957 transitions. Second operand 8 states. [2020-09-25 04:28:37,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:28:37,580 INFO L93 Difference]: Finished difference Result 3858 states and 4948 transitions. [2020-09-25 04:28:37,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 04:28:37,580 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 146 [2020-09-25 04:28:37,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:28:37,593 INFO L225 Difference]: With dead ends: 3858 [2020-09-25 04:28:37,593 INFO L226 Difference]: Without dead ends: 2278 [2020-09-25 04:28:37,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:28:37,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2020-09-25 04:28:37,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 2233. [2020-09-25 04:28:37,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2233 states. [2020-09-25 04:28:37,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2233 states to 2233 states and 2745 transitions. [2020-09-25 04:28:37,698 INFO L78 Accepts]: Start accepts. Automaton has 2233 states and 2745 transitions. Word has length 146 [2020-09-25 04:28:37,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:28:37,699 INFO L479 AbstractCegarLoop]: Abstraction has 2233 states and 2745 transitions. [2020-09-25 04:28:37,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:28:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2233 states and 2745 transitions. [2020-09-25 04:28:37,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 04:28:37,706 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:28:37,707 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:28:37,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:28:37,707 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:28:37,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:28:37,708 INFO L82 PathProgramCache]: Analyzing trace with hash -584227059, now seen corresponding path program 1 times [2020-09-25 04:28:37,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:28:37,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588485923] [2020-09-25 04:28:37,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:28:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:37,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:37,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:38,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:40,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:40,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-09-25 04:28:40,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:28:40,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2396 [2020-09-25 04:28:40,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:40,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:40,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:28:40,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 04:28:40,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:28:40,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:28:40,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:28:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:40,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:40,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:40,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:28:40,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:40,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:28:40,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:40,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:40,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:28:40,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:28:40,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:28:40,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:28:40,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:28:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:40,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:40,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:40,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:28:40,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:40,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 04:28:40,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:40,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:28:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:28:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:28:40,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:28:40,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:28:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:40,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:40,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:40,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:28:40,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:40,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 04:28:40,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:40,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:40,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:28:40,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:28:40,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 04:28:40,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:28:40,430 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:28:40,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588485923] [2020-09-25 04:28:40,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:28:40,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:28:40,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447306719] [2020-09-25 04:28:40,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:28:40,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:28:40,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:28:40,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:28:40,433 INFO L87 Difference]: Start difference. First operand 2233 states and 2745 transitions. Second operand 7 states. [2020-09-25 04:28:43,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:28:43,369 INFO L93 Difference]: Finished difference Result 7753 states and 10504 transitions. [2020-09-25 04:28:43,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:28:43,370 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 158 [2020-09-25 04:28:43,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:28:43,402 INFO L225 Difference]: With dead ends: 7753 [2020-09-25 04:28:43,402 INFO L226 Difference]: Without dead ends: 5542 [2020-09-25 04:28:43,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:28:43,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5542 states. [2020-09-25 04:28:43,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5542 to 4356. [2020-09-25 04:28:43,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4356 states. [2020-09-25 04:28:43,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4356 states to 4356 states and 5554 transitions. [2020-09-25 04:28:43,582 INFO L78 Accepts]: Start accepts. Automaton has 4356 states and 5554 transitions. Word has length 158 [2020-09-25 04:28:43,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:28:43,583 INFO L479 AbstractCegarLoop]: Abstraction has 4356 states and 5554 transitions. [2020-09-25 04:28:43,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:28:43,583 INFO L276 IsEmpty]: Start isEmpty. Operand 4356 states and 5554 transitions. [2020-09-25 04:28:43,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 04:28:43,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:28:43,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:28:43,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:28:43,602 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:28:43,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:28:43,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1465769009, now seen corresponding path program 1 times [2020-09-25 04:28:43,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:28:43,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832199416] [2020-09-25 04:28:43,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:28:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:43,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:43,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:44,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:45,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:46,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:46,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 04:28:46,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:28:46,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3126 [2020-09-25 04:28:46,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:46,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:46,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:28:46,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 04:28:46,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 04:28:46,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:28:46,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:28:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:46,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:46,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:46,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:28:46,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:46,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:28:46,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:46,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:46,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:28:46,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:28:46,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:28:46,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:28:46,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:28:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:46,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:46,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:46,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:28:46,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:46,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 04:28:46,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:46,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:46,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:28:46,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:28:46,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:28:46,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:28:46,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:28:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:28:46,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:28:46,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:28:46,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 04:28:46,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:28:46,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 04:28:46,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:28:46,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:28:46,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:28:46,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:28:46,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:28:46,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:28:47,033 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 04:28:47,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832199416] [2020-09-25 04:28:47,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:28:47,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 04:28:47,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123212709] [2020-09-25 04:28:47,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:28:47,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:28:47,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:28:47,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:28:47,037 INFO L87 Difference]: Start difference. First operand 4356 states and 5554 transitions. Second operand 8 states. [2020-09-25 04:28:49,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:28:49,898 INFO L93 Difference]: Finished difference Result 10075 states and 13255 transitions. [2020-09-25 04:28:49,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:28:49,899 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-09-25 04:28:49,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:28:49,929 INFO L225 Difference]: With dead ends: 10075 [2020-09-25 04:28:49,930 INFO L226 Difference]: Without dead ends: 5751 [2020-09-25 04:28:49,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:28:49,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5751 states. [2020-09-25 04:28:50,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5751 to 5726. [2020-09-25 04:28:50,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5726 states. [2020-09-25 04:28:50,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5726 states to 5726 states and 7283 transitions. [2020-09-25 04:28:50,121 INFO L78 Accepts]: Start accepts. Automaton has 5726 states and 7283 transitions. Word has length 161 [2020-09-25 04:28:50,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:28:50,123 INFO L479 AbstractCegarLoop]: Abstraction has 5726 states and 7283 transitions. [2020-09-25 04:28:50,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:28:50,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5726 states and 7283 transitions. [2020-09-25 04:28:50,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 04:28:50,143 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:28:50,143 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:28:50,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:28:50,143 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:28:50,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:28:50,144 INFO L82 PathProgramCache]: Analyzing trace with hash -523474928, now seen corresponding path program 1 times [2020-09-25 04:28:50,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:28:50,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930709792] [2020-09-25 04:28:50,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:28:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:28:50,184 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:28:50,184 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:28:50,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:28:50,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:28:50 BoogieIcfgContainer [2020-09-25 04:28:50,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:28:50,243 INFO L168 Benchmark]: Toolchain (without parser) took 35788.21 ms. Allocated memory was 140.5 MB in the beginning and 645.4 MB in the end (delta: 504.9 MB). Free memory was 100.6 MB in the beginning and 242.8 MB in the end (delta: -142.3 MB). Peak memory consumption was 362.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:28:50,244 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 04:28:50,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.61 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 99.9 MB in the beginning and 172.1 MB in the end (delta: -72.3 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. [2020-09-25 04:28:50,252 INFO L168 Benchmark]: Boogie Preprocessor took 113.68 ms. Allocated memory is still 205.5 MB. Free memory was 172.1 MB in the beginning and 167.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-25 04:28:50,253 INFO L168 Benchmark]: RCFGBuilder took 1378.62 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 166.7 MB in the beginning and 160.9 MB in the end (delta: 5.8 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-09-25 04:28:50,254 INFO L168 Benchmark]: TraceAbstraction took 33528.85 ms. Allocated memory was 237.5 MB in the beginning and 645.4 MB in the end (delta: 407.9 MB). Free memory was 159.5 MB in the beginning and 242.8 MB in the end (delta: -83.3 MB). Peak memory consumption was 324.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:28:50,264 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 757.61 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 99.9 MB in the beginning and 172.1 MB in the end (delta: -72.3 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.68 ms. Allocated memory is still 205.5 MB. Free memory was 172.1 MB in the beginning and 167.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1378.62 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 166.7 MB in the beginning and 160.9 MB in the end (delta: 5.8 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33528.85 ms. Allocated memory was 237.5 MB in the beginning and 645.4 MB in the end (delta: 407.9 MB). Free memory was 159.5 MB in the beginning and 242.8 MB in the end (delta: -83.3 MB). Peak memory consumption was 324.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 427]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int a= 1; [L8] int e= 5; [L9] int d= 4; [L10] int f= 6; [L11] int c= 3; [L14] int u = 21; [L15] int v = 22; [L16] int w = 23; [L17] int x = 24; [L18] int y = 25; [L19] int z = 26; [L22] int a25 = 0; [L23] int a11 = 0; [L24] int a28 = 7; [L25] int a19 = 1; [L26] int a21 = 1; [L27] int a17 = 8; [L603] int output = -1; [L606] COND TRUE 1 [L609] int input; [L610] input = __VERIFIER_nondet_int() [L611] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L614] CALL, EXPR calculate_output(input) [L30] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L35] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L38] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L42] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L47] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L50] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L54] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L59] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L65] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L69] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L74] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L82] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L91] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L95] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L99] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L106] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L113] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L119] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L123] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L130] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L134] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L139] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L143] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L148] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L154] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L159] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L165] COND TRUE (((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1)) [L166] a25 = 1 [L167] a28 = 9 [L168] return 26; [L614] RET, EXPR calculate_output(input) [L614] output = calculate_output(input) [L606] COND TRUE 1 [L609] int input; [L610] input = __VERIFIER_nondet_int() [L611] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L614] CALL, EXPR calculate_output(input) [L30] COND TRUE (((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8)) [L31] a28 = 9 [L32] a11 = 1 [L33] a25 = 1 [L34] return -1; [L614] RET, EXPR calculate_output(input) [L614] output = calculate_output(input) [L606] COND TRUE 1 [L609] int input; [L610] input = __VERIFIER_nondet_int() [L611] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L614] CALL calculate_output(input) [L30] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L35] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L38] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L42] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L47] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L50] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L54] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L59] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L65] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L69] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L74] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L82] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L91] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L95] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L99] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L106] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L113] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L119] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L123] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L130] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L134] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L139] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L143] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L148] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L154] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L159] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L165] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L169] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L175] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L179] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L185] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L187] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L189] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L191] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L194] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L198] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L202] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L212] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L215] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L218] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L223] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L225] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L232] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L234] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L237] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L248] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L253] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L259] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L261] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L276] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L280] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L283] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L286] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L291] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L293] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L297] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L309] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L314] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L328] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L331] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L337] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L349] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L354] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L361] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L368] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L375] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L378] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L380] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L389] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L394] COND FALSE !((((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1))) [L398] COND FALSE !((((a17==8)&&((((input==4)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9))))&&(a21==1))&&!(a19==1)))&&!(a11==1))) [L402] COND FALSE !((((!(a11==1)&&((((a19==1)&&(input==5))&&(a17==8))&&(a21==1)))&&(a28==9))&&!(a25==1))) [L404] COND FALSE !((((a11==1)&&((a19==1)&&((a21==1)&&(((a17==9)&&(input==5))&&!(a25==1)))))&&(a28==8))) [L407] COND FALSE !((!(a11==1)&&((a21==1)&&(((a19==1)&&((a17==8)&&((a25==1)&&(input==5))))&&(a28==11))))) [L409] COND FALSE !(((a19==1)&&((a17==8)&&(((((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))&&!(a11==1))&&(a21==1))))) [L414] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==8))) [L417] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8))) [L420] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L423] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L426] COND TRUE ((((((a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8)) [L427] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 527 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.3s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 14.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2020 SDtfs, 7027 SDslu, 2514 SDs, 0 SdLazy, 8276 SolverSat, 885 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5726occurred in iteration=6, 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, 6 MinimizatonAttempts, 1469 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 17.0s InterpolantComputationTime, 1010 NumberOfCodeBlocks, 1010 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 832 ConstructedInterpolants, 0 QuantifiedInterpolants, 296112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 141/148 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...