/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=LOWLEXORDER --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 [2020-09-24 21:43:01,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:43:01,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:43:01,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:43:01,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:43:01,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:43:01,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:43:01,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:43:01,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:43:01,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:43:01,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:43:01,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:43:01,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:43:01,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:43:01,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:43:01,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:43:01,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:43:01,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:43:01,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:43:01,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:43:01,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:43:01,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:43:01,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:43:01,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:43:01,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:43:01,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:43:01,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:43:01,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:43:01,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:43:01,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:43:01,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:43:01,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:43:01,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:43:01,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:43:01,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:43:01,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:43:01,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:43:01,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:43:01,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:43:01,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:43:01,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:43:01,200 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:43:01,226 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:43:01,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:43:01,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:43:01,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:43:01,228 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:43:01,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:43:01,229 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:43:01,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:43:01,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:43:01,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:43:01,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:43:01,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:43:01,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:43:01,230 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:43:01,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:43:01,230 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:43:01,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:43:01,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:43:01,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:43:01,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:43:01,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:43:01,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:43:01,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:43:01,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:43:01,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:43:01,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:43:01,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:43:01,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:43:01,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:43:01,233 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:43:01,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:43:01,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:43:01,722 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:43:01,725 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:43:01,726 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:43:01,727 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-09-24 21:43:01,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/594dead91/c0997590deef4366a6b0b9c9674b92dd/FLAG879a0d6c4 [2020-09-24 21:43:02,442 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:43:02,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-09-24 21:43:02,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/594dead91/c0997590deef4366a6b0b9c9674b92dd/FLAG879a0d6c4 [2020-09-24 21:43:02,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/594dead91/c0997590deef4366a6b0b9c9674b92dd [2020-09-24 21:43:02,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:43:02,703 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:43:02,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:43:02,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:43:02,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:43:02,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:43:02" (1/1) ... [2020-09-24 21:43:02,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5783693b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:43:02, skipping insertion in model container [2020-09-24 21:43:02,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:43:02" (1/1) ... [2020-09-24 21:43:02,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:43:02,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:43:03,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:43:03,348 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:43:03,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:43:03,500 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:43:03,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:43:03 WrapperNode [2020-09-24 21:43:03,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:43:03,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:43:03,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:43:03,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:43:03,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:43:03" (1/1) ... [2020-09-24 21:43:03,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:43:03" (1/1) ... [2020-09-24 21:43:03,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:43:03" (1/1) ... [2020-09-24 21:43:03,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:43:03" (1/1) ... [2020-09-24 21:43:03,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:43:03" (1/1) ... [2020-09-24 21:43:03,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:43:03" (1/1) ... [2020-09-24 21:43:03,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:43:03" (1/1) ... [2020-09-24 21:43:03,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:43:03,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:43:03,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:43:03,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:43:03,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:43:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:43:03,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:43:03,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:43:03,697 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-24 21:43:03,697 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:43:03,697 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-24 21:43:03,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:43:03,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:43:03,697 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 21:43:03,698 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:43:03,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:43:03,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:43:05,108 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:43:05,110 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 21:43:05,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:43:05 BoogieIcfgContainer [2020-09-24 21:43:05,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:43:05,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:43:05,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:43:05,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:43:05,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:43:02" (1/3) ... [2020-09-24 21:43:05,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786d3a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:43:05, skipping insertion in model container [2020-09-24 21:43:05,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:43:03" (2/3) ... [2020-09-24 21:43:05,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786d3a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:43:05, skipping insertion in model container [2020-09-24 21:43:05,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:43:05" (3/3) ... [2020-09-24 21:43:05,137 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label43.c [2020-09-24 21:43:05,149 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:43:05,165 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:43:05,189 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:43:05,234 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:43:05,235 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:43:05,235 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:43:05,235 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:43:05,236 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:43:05,236 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:43:05,236 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:43:05,236 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:43:05,280 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-24 21:43:05,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-24 21:43:05,306 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:43:05,308 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] [2020-09-24 21:43:05,308 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:43:05,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:43:05,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1883432242, now seen corresponding path program 1 times [2020-09-24 21:43:05,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:43:05,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106040551] [2020-09-24 21:43:05,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:43:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:43:05,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:06,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:06,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:06,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:06,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:09,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:09,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:09,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:43:09,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 21:43:09,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:43:09,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4395 [2020-09-24 21:43:09,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:43:09,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 21:43:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-24 21:43:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 21:43:09,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:43:10,580 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2020-09-24 21:43:10,703 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 37 [2020-09-24 21:43:11,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:43:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:43:11,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:11,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:43:11,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:43:11,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:43:11,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 21:43:11,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:43:11,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:43:11,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:43:11,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:43:11,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:43:11,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:43:11,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106040551] [2020-09-24 21:43:11,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:43:11,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-09-24 21:43:11,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548359967] [2020-09-24 21:43:11,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 21:43:11,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:43:11,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 21:43:11,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-09-24 21:43:11,618 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 16 states. [2020-09-24 21:43:12,121 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-09-24 21:43:12,277 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-09-24 21:43:12,594 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2020-09-24 21:43:12,918 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 95 [2020-09-24 21:43:13,580 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2020-09-24 21:43:13,965 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2020-09-24 21:43:14,126 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-09-24 21:43:15,137 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2020-09-24 21:43:15,345 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2020-09-24 21:43:15,677 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-09-24 21:43:16,508 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2020-09-24 21:43:16,996 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2020-09-24 21:43:17,226 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-09-24 21:43:18,281 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-09-24 21:43:18,698 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-09-24 21:43:21,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:43:21,144 INFO L93 Difference]: Finished difference Result 1869 states and 2661 transitions. [2020-09-24 21:43:21,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-09-24 21:43:21,146 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 111 [2020-09-24 21:43:21,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:43:21,175 INFO L225 Difference]: With dead ends: 1869 [2020-09-24 21:43:21,176 INFO L226 Difference]: Without dead ends: 1239 [2020-09-24 21:43:21,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=469, Invalid=1171, Unknown=0, NotChecked=0, Total=1640 [2020-09-24 21:43:21,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2020-09-24 21:43:21,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1076. [2020-09-24 21:43:21,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1076 states. [2020-09-24 21:43:21,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1293 transitions. [2020-09-24 21:43:21,343 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1293 transitions. Word has length 111 [2020-09-24 21:43:21,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:43:21,344 INFO L479 AbstractCegarLoop]: Abstraction has 1076 states and 1293 transitions. [2020-09-24 21:43:21,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 21:43:21,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1293 transitions. [2020-09-24 21:43:21,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-24 21:43:21,354 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:43:21,355 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] [2020-09-24 21:43:21,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:43:21,355 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:43:21,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:43:21,356 INFO L82 PathProgramCache]: Analyzing trace with hash 980037392, now seen corresponding path program 1 times [2020-09-24 21:43:21,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:43:21,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1916221154] [2020-09-24 21:43:21,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:43:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:43:21,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:21,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:21,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:22,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:22,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:23,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:24,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:25,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:25,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:26,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:43:26,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 21:43:26,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 21:43:26,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 21:43:26,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:43:26,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 21:43:26,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:43:26,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 21:43:26,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:43:26,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:43:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:43:26,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:26,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:43:26,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:43:26,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:43:26,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 21:43:26,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:43:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:43:26,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:43:26,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:43:26,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:43:27,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 21:43:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:43:27,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:27,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:43:27,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-24 21:43:27,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:43:27,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 21:43:27,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:43:27,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:43:27,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:43:27,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 21:43:27,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:43:27,665 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:43:27,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1916221154] [2020-09-24 21:43:27,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:43:27,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 21:43:27,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49820568] [2020-09-24 21:43:27,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 21:43:27,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:43:27,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 21:43:27,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:43:27,669 INFO L87 Difference]: Start difference. First operand 1076 states and 1293 transitions. Second operand 19 states. [2020-09-24 21:43:28,887 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-09-24 21:43:29,137 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-09-24 21:43:29,328 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2020-09-24 21:43:29,790 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2020-09-24 21:43:30,086 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2020-09-24 21:43:30,555 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2020-09-24 21:43:30,795 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-09-24 21:43:31,071 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-09-24 21:43:31,938 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 70 [2020-09-24 21:43:32,592 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-09-24 21:43:33,005 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2020-09-24 21:43:33,921 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-09-24 21:43:34,513 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-09-24 21:43:34,961 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2020-09-24 21:43:35,376 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2020-09-24 21:43:37,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:43:37,236 INFO L93 Difference]: Finished difference Result 4063 states and 5402 transitions. [2020-09-24 21:43:37,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-09-24 21:43:37,238 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 133 [2020-09-24 21:43:37,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:43:37,264 INFO L225 Difference]: With dead ends: 4063 [2020-09-24 21:43:37,264 INFO L226 Difference]: Without dead ends: 3067 [2020-09-24 21:43:37,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=661, Invalid=1501, Unknown=0, NotChecked=0, Total=2162 [2020-09-24 21:43:37,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3067 states. [2020-09-24 21:43:37,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3067 to 2844. [2020-09-24 21:43:37,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2844 states. [2020-09-24 21:43:37,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2844 states to 2844 states and 3417 transitions. [2020-09-24 21:43:37,401 INFO L78 Accepts]: Start accepts. Automaton has 2844 states and 3417 transitions. Word has length 133 [2020-09-24 21:43:37,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:43:37,402 INFO L479 AbstractCegarLoop]: Abstraction has 2844 states and 3417 transitions. [2020-09-24 21:43:37,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 21:43:37,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2844 states and 3417 transitions. [2020-09-24 21:43:37,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-24 21:43:37,412 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:43:37,413 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] [2020-09-24 21:43:37,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:43:37,414 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:43:37,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:43:37,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1044088891, now seen corresponding path program 1 times [2020-09-24 21:43:37,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:43:37,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775699356] [2020-09-24 21:43:37,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:43:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:43:37,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:37,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:43:37,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-24 21:43:37,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:43:37,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-09-24 21:43:37,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:43:37,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:43:37,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-24 21:43:37,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:43:37,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:43:37,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:43:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:43:37,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:37,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:43:37,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:43:37,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:43:37,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:43:37,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:43:37,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:43:37,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:43:37,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:43:37,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:43:37,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 21:43:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:43:37,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:37,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:43:37,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 21:43:37,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:43:37,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:43:37,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:43:37,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:43:37,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:43:37,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:43:37,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:43:37,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 21:43:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:43:37,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:43:37,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:43:37,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:43:37,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:43:37,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 21:43:37,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:43:37,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:43:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:43:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 21:43:37,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:43:38,060 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 21:43:38,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775699356] [2020-09-24 21:43:38,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:43:38,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 21:43:38,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855082933] [2020-09-24 21:43:38,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:43:38,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:43:38,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:43:38,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:43:38,063 INFO L87 Difference]: Start difference. First operand 2844 states and 3417 transitions. Second operand 8 states. [2020-09-24 21:43:41,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:43:41,368 INFO L93 Difference]: Finished difference Result 8031 states and 10303 transitions. [2020-09-24 21:43:41,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 21:43:41,369 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 146 [2020-09-24 21:43:41,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:43:41,405 INFO L225 Difference]: With dead ends: 8031 [2020-09-24 21:43:41,405 INFO L226 Difference]: Without dead ends: 5267 [2020-09-24 21:43:41,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 21:43:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5267 states. [2020-09-24 21:43:41,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5267 to 4590. [2020-09-24 21:43:41,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4590 states. [2020-09-24 21:43:41,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 5652 transitions. [2020-09-24 21:43:41,580 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 5652 transitions. Word has length 146 [2020-09-24 21:43:41,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:43:41,580 INFO L479 AbstractCegarLoop]: Abstraction has 4590 states and 5652 transitions. [2020-09-24 21:43:41,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:43:41,581 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 5652 transitions. [2020-09-24 21:43:41,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 21:43:41,594 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:43:41,594 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] [2020-09-24 21:43:41,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:43:41,595 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:43:41,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:43:41,595 INFO L82 PathProgramCache]: Analyzing trace with hash -523474928, now seen corresponding path program 1 times [2020-09-24 21:43:41,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:43:41,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083234309] [2020-09-24 21:43:41,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:43:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 21:43:41,654 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 21:43:41,655 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 21:43:41,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:43:41,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:43:41 BoogieIcfgContainer [2020-09-24 21:43:41,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:43:41,715 INFO L168 Benchmark]: Toolchain (without parser) took 39014.26 ms. Allocated memory was 144.7 MB in the beginning and 563.1 MB in the end (delta: 418.4 MB). Free memory was 99.9 MB in the beginning and 131.4 MB in the end (delta: -31.5 MB). Peak memory consumption was 386.8 MB. Max. memory is 7.1 GB. [2020-09-24 21:43:41,716 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 144.7 MB. Free memory was 119.4 MB in the beginning and 119.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 21:43:41,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.78 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 99.2 MB in the beginning and 169.4 MB in the end (delta: -70.2 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2020-09-24 21:43:41,724 INFO L168 Benchmark]: Boogie Preprocessor took 113.24 ms. Allocated memory is still 202.9 MB. Free memory was 169.4 MB in the beginning and 164.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-09-24 21:43:41,725 INFO L168 Benchmark]: RCFGBuilder took 1511.07 ms. Allocated memory was 202.9 MB in the beginning and 233.3 MB in the end (delta: 30.4 MB). Free memory was 164.3 MB in the beginning and 159.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2020-09-24 21:43:41,726 INFO L168 Benchmark]: TraceAbstraction took 36584.65 ms. Allocated memory was 233.3 MB in the beginning and 563.1 MB in the end (delta: 329.8 MB). Free memory was 159.7 MB in the beginning and 131.4 MB in the end (delta: 28.2 MB). Peak memory consumption was 358.0 MB. Max. memory is 7.1 GB. [2020-09-24 21:43:41,737 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 144.7 MB. Free memory was 119.4 MB in the beginning and 119.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 796.78 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 99.2 MB in the beginning and 169.4 MB in the end (delta: -70.2 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.24 ms. Allocated memory is still 202.9 MB. Free memory was 169.4 MB in the beginning and 164.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1511.07 ms. Allocated memory was 202.9 MB in the beginning and 233.3 MB in the end (delta: 30.4 MB). Free memory was 164.3 MB in the beginning and 159.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 36584.65 ms. Allocated memory was 233.3 MB in the beginning and 563.1 MB in the end (delta: 329.8 MB). Free memory was 159.7 MB in the beginning and 131.4 MB in the end (delta: 28.2 MB). Peak memory consumption was 358.0 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: 36.4s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 22.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1161 SDtfs, 5717 SDslu, 1903 SDs, 0 SdLazy, 9446 SolverSat, 938 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1095 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4590occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 1063 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.5s InterpolantComputationTime, 562 NumberOfCodeBlocks, 562 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 387 ConstructedInterpolants, 0 QuantifiedInterpolants, 740730 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 44/47 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...