/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 --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 interpolation-heuristic=FIRST --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/Problem10_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:27:51,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:27:51,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:27:51,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:27:51,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:27:51,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:27:51,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:27:51,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:27:51,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:27:51,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:27:51,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:27:51,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:27:51,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:27:51,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:27:51,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:27:51,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:27:51,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:27:51,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:27:51,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:27:51,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:27:51,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:27:51,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:27:51,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:27:51,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:27:51,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:27:51,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:27:51,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:27:51,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:27:51,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:27:51,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:27:51,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:27:51,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:27:51,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:27:51,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:27:51,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:27:51,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:27:51,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:27:51,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:27:51,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:27:51,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:27:51,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:27:51,659 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 [2020-09-21 11:27:51,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:27:51,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:27:51,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:27:51,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:27:51,704 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:27:51,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:27:51,708 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:27:51,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:27:51,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:27:51,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:27:51,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:27:51,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:27:51,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:27:51,710 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:27:51,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:27:51,710 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:27:51,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:27:51,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:27:51,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:27:51,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:27:51,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:27:51,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:27:51,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:27:51,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:27:51,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:27:51,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:27:51,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:27:51,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:27:51,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:27:51,715 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:27:52,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:27:52,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:27:52,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:27:52,266 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:27:52,267 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:27:52,268 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-09-21 11:27:52,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3a0d670c/710d1deeec6d41ffac9a2237808927eb/FLAGdf656979a [2020-09-21 11:27:53,038 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:27:53,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-09-21 11:27:53,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3a0d670c/710d1deeec6d41ffac9a2237808927eb/FLAGdf656979a [2020-09-21 11:27:53,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3a0d670c/710d1deeec6d41ffac9a2237808927eb [2020-09-21 11:27:53,278 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:27:53,286 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:27:53,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:27:53,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:27:53,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:27:53,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:27:53" (1/1) ... [2020-09-21 11:27:53,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73111a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:53, skipping insertion in model container [2020-09-21 11:27:53,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:27:53" (1/1) ... [2020-09-21 11:27:53,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:27:53,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:27:53,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:27:53,990 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:27:54,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:27:54,156 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:27:54,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:54 WrapperNode [2020-09-21 11:27:54,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:27:54,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:27:54,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:27:54,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:27:54,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:54" (1/1) ... [2020-09-21 11:27:54,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:54" (1/1) ... [2020-09-21 11:27:54,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:54" (1/1) ... [2020-09-21 11:27:54,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:54" (1/1) ... [2020-09-21 11:27:54,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:54" (1/1) ... [2020-09-21 11:27:54,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:54" (1/1) ... [2020-09-21 11:27:54,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:54" (1/1) ... [2020-09-21 11:27:54,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:27:54,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:27:54,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:27:54,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:27:54,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:54" (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 [2020-09-21 11:27:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:27:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:27:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:27:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:27:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:27:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:27:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:27:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:27:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:27:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:27:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:27:55,694 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:27:55,695 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:27:55,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:27:55 BoogieIcfgContainer [2020-09-21 11:27:55,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:27:55,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:27:55,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:27:55,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:27:55,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:27:53" (1/3) ... [2020-09-21 11:27:55,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bdfa661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:27:55, skipping insertion in model container [2020-09-21 11:27:55,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:54" (2/3) ... [2020-09-21 11:27:55,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bdfa661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:27:55, skipping insertion in model container [2020-09-21 11:27:55,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:27:55" (3/3) ... [2020-09-21 11:27:55,726 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label51.c [2020-09-21 11:27:55,740 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:27:55,755 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:27:55,782 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:27:55,826 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:27:55,827 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:27:55,828 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:27:55,828 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:27:55,828 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:27:55,828 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:27:55,829 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:27:55,829 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:27:55,865 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-09-21 11:27:55,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-21 11:27:55,883 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:55,885 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] [2020-09-21 11:27:55,885 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:55,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:55,894 INFO L82 PathProgramCache]: Analyzing trace with hash -689906609, now seen corresponding path program 1 times [2020-09-21 11:27:55,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:55,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236383584] [2020-09-21 11:27:55,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:56,232 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:56,232 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:56,233 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:56,233 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:56,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-21 11:27:56,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:56,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-21 11:27:56,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:56,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:56,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:56,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-21 11:27:56,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:56,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:56,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:56,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:56,418 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:56,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:56,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:56,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:56,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:27:56,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:56,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:56,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:56,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:56,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:56,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236383584] [2020-09-21 11:27:56,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:56,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:27:56,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902971408] [2020-09-21 11:27:56,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:56,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:56,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:56,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:56,499 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-09-21 11:27:58,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:58,903 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-09-21 11:27:58,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:27:58,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-09-21 11:27:58,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:58,928 INFO L225 Difference]: With dead ends: 730 [2020-09-21 11:27:58,928 INFO L226 Difference]: Without dead ends: 447 [2020-09-21 11:27:58,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:58,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-21 11:27:59,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-09-21 11:27:59,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-09-21 11:27:59,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-09-21 11:27:59,057 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 56 [2020-09-21 11:27:59,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:59,058 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-09-21 11:27:59,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:59,058 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-09-21 11:27:59,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-21 11:27:59,065 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:59,066 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:59,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:27:59,066 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:59,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:59,067 INFO L82 PathProgramCache]: Analyzing trace with hash 652113497, now seen corresponding path program 1 times [2020-09-21 11:27:59,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:59,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485077431] [2020-09-21 11:27:59,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:59,284 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:59,285 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:59,285 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:59,285 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:59,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-21 11:27:59,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:59,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-21 11:27:59,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:59,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:59,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:59,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:27:59,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:59,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:59,392 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:59,392 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:59,393 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:59,393 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:59,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:59,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:59,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:59,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:59,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:59,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:59,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:59,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:59,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:59,475 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:59,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:59,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-21 11:27:59,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:59,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 11:27:59,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:59,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:59,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:59,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-21 11:27:59,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:59,623 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:59,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485077431] [2020-09-21 11:27:59,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:59,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:27:59,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696972925] [2020-09-21 11:27:59,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:27:59,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:59,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:27:59,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:27:59,629 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 8 states. [2020-09-21 11:28:01,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:01,496 INFO L93 Difference]: Finished difference Result 1041 states and 1612 transitions. [2020-09-21 11:28:01,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:28:01,497 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 129 [2020-09-21 11:28:01,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:01,504 INFO L225 Difference]: With dead ends: 1041 [2020-09-21 11:28:01,504 INFO L226 Difference]: Without dead ends: 606 [2020-09-21 11:28:01,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:28:01,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-09-21 11:28:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 592. [2020-09-21 11:28:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-21 11:28:01,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 829 transitions. [2020-09-21 11:28:01,568 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 829 transitions. Word has length 129 [2020-09-21 11:28:01,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:01,569 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 829 transitions. [2020-09-21 11:28:01,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:28:01,569 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 829 transitions. [2020-09-21 11:28:01,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-21 11:28:01,573 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:01,573 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:01,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:28:01,574 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:01,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:01,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1330273235, now seen corresponding path program 1 times [2020-09-21 11:28:01,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:01,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672148395] [2020-09-21 11:28:01,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:01,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:28:01,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -84 [2020-09-21 11:28:01,648 FATAL L256 erpolLogProxyWrapper]: Difference in width: 84 [2020-09-21 11:28:01,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:01,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:28:01,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:01,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:28:01,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:01,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:01,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-21 11:28:01,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:28:01,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:01,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:01,767 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:01,767 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:01,768 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:01,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:01,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:01,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:01,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:28:01,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:01,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:01,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:01,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:01,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:01,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:01,831 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:28:01,831 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:01,831 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:01,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:01,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 11:28:01,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:01,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:28:01,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:01,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-21 11:28:01,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:01,909 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:28:01,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672148395] [2020-09-21 11:28:01,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:28:01,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:28:01,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546518884] [2020-09-21 11:28:01,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:28:01,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:01,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:28:01,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:28:01,912 INFO L87 Difference]: Start difference. First operand 592 states and 829 transitions. Second operand 5 states. [2020-09-21 11:28:03,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:03,027 INFO L93 Difference]: Finished difference Result 1209 states and 1700 transitions. [2020-09-21 11:28:03,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:28:03,027 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2020-09-21 11:28:03,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:03,032 INFO L225 Difference]: With dead ends: 1209 [2020-09-21 11:28:03,032 INFO L226 Difference]: Without dead ends: 600 [2020-09-21 11:28:03,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:28:03,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-09-21 11:28:03,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 592. [2020-09-21 11:28:03,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-21 11:28:03,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 825 transitions. [2020-09-21 11:28:03,073 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 825 transitions. Word has length 135 [2020-09-21 11:28:03,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:03,074 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 825 transitions. [2020-09-21 11:28:03,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:28:03,074 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 825 transitions. [2020-09-21 11:28:03,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-21 11:28:03,077 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:03,078 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:03,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:28:03,078 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:03,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:03,079 INFO L82 PathProgramCache]: Analyzing trace with hash 460847434, now seen corresponding path program 1 times [2020-09-21 11:28:03,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:03,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105738506] [2020-09-21 11:28:03,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:03,133 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:03,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:03,134 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:03,134 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:03,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-09-21 11:28:03,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:03,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:28:03,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:28:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:28:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-21 11:28:03,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:03,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:03,218 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:03,219 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:03,219 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:03,219 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:03,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:03,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:03,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:28:03,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:03,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:28:03,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:03,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:03,261 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:03,262 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:03,262 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:03,262 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:03,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-21 11:28:03,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:03,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:28:03,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:03,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:03,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:03,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-21 11:28:03,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:03,349 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:28:03,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105738506] [2020-09-21 11:28:03,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:28:03,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:28:03,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403951357] [2020-09-21 11:28:03,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:28:03,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:03,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:28:03,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:28:03,352 INFO L87 Difference]: Start difference. First operand 592 states and 825 transitions. Second operand 7 states. [2020-09-21 11:28:04,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:04,975 INFO L93 Difference]: Finished difference Result 1794 states and 2570 transitions. [2020-09-21 11:28:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:28:04,976 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2020-09-21 11:28:04,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:04,984 INFO L225 Difference]: With dead ends: 1794 [2020-09-21 11:28:04,985 INFO L226 Difference]: Without dead ends: 1208 [2020-09-21 11:28:04,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:28:04,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-09-21 11:28:05,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 900. [2020-09-21 11:28:05,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2020-09-21 11:28:05,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1240 transitions. [2020-09-21 11:28:05,027 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1240 transitions. Word has length 146 [2020-09-21 11:28:05,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:05,028 INFO L479 AbstractCegarLoop]: Abstraction has 900 states and 1240 transitions. [2020-09-21 11:28:05,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:28:05,028 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1240 transitions. [2020-09-21 11:28:05,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-21 11:28:05,031 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:05,031 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:05,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:28:05,032 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:05,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:05,032 INFO L82 PathProgramCache]: Analyzing trace with hash 582214590, now seen corresponding path program 1 times [2020-09-21 11:28:05,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:05,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823822177] [2020-09-21 11:28:05,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:05,096 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:05,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:05,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:05,097 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:05,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-21 11:28:05,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:05,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 11:28:05,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:05,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:28:05,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:28:05,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-21 11:28:05,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:05,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:05,197 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:05,198 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:05,198 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:05,198 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:05,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:05,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:05,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:28:05,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:05,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:05,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:05,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:28:05,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:05,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:05,273 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:05,274 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:05,274 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:05,274 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:05,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:28:05,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:05,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:28:05,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:05,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:05,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:05,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-21 11:28:05,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:05,410 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:28:05,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823822177] [2020-09-21 11:28:05,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:28:05,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:28:05,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528375188] [2020-09-21 11:28:05,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:28:05,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:05,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:28:05,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:28:05,418 INFO L87 Difference]: Start difference. First operand 900 states and 1240 transitions. Second operand 8 states. [2020-09-21 11:28:07,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:07,851 INFO L93 Difference]: Finished difference Result 2986 states and 4298 transitions. [2020-09-21 11:28:07,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:28:07,851 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 168 [2020-09-21 11:28:07,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:07,868 INFO L225 Difference]: With dead ends: 2986 [2020-09-21 11:28:07,868 INFO L226 Difference]: Without dead ends: 2092 [2020-09-21 11:28:07,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:28:07,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2020-09-21 11:28:07,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 1786. [2020-09-21 11:28:07,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1786 states. [2020-09-21 11:28:07,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2395 transitions. [2020-09-21 11:28:07,953 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2395 transitions. Word has length 168 [2020-09-21 11:28:07,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:07,954 INFO L479 AbstractCegarLoop]: Abstraction has 1786 states and 2395 transitions. [2020-09-21 11:28:07,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:28:07,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2395 transitions. [2020-09-21 11:28:07,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-09-21 11:28:07,960 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:07,960 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:28:07,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:28:07,961 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:07,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:07,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1368139033, now seen corresponding path program 1 times [2020-09-21 11:28:07,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:07,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190734258] [2020-09-21 11:28:07,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:08,048 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:08,048 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:08,048 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:08,049 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:08,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-09-21 11:28:08,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:08,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:28:08,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:08,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:28:08,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:28:08,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-21 11:28:08,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:08,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:08,120 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:08,120 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:08,120 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:08,121 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:08,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:08,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:08,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:28:08,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:08,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:08,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:08,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:28:08,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:08,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:08,188 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:08,189 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:08,189 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:08,189 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:08,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:28:08,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:08,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 11:28:08,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:08,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:08,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:08,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:28:08,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:08,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-21 11:28:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:08,284 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:08,284 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:08,284 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:08,285 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:08,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-21 11:28:08,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:08,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:08,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:08,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:08,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-09-21 11:28:08,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:08,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:08,415 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 98 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 11:28:08,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190734258] [2020-09-21 11:28:08,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:28:08,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:28:08,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576645272] [2020-09-21 11:28:08,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:28:08,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:08,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:28:08,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:28:08,418 INFO L87 Difference]: Start difference. First operand 1786 states and 2395 transitions. Second operand 7 states. [2020-09-21 11:28:09,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:09,913 INFO L93 Difference]: Finished difference Result 3727 states and 5011 transitions. [2020-09-21 11:28:09,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:28:09,914 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-09-21 11:28:09,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:09,926 INFO L225 Difference]: With dead ends: 3727 [2020-09-21 11:28:09,927 INFO L226 Difference]: Without dead ends: 1947 [2020-09-21 11:28:09,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:28:09,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2020-09-21 11:28:09,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1931. [2020-09-21 11:28:09,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1931 states. [2020-09-21 11:28:09,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2558 transitions. [2020-09-21 11:28:09,995 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2558 transitions. Word has length 242 [2020-09-21 11:28:09,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:09,995 INFO L479 AbstractCegarLoop]: Abstraction has 1931 states and 2558 transitions. [2020-09-21 11:28:09,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:28:09,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2558 transitions. [2020-09-21 11:28:10,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-09-21 11:28:10,002 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:10,002 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:28:10,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:28:10,003 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:10,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:10,003 INFO L82 PathProgramCache]: Analyzing trace with hash 426372256, now seen corresponding path program 1 times [2020-09-21 11:28:10,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:10,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678194832] [2020-09-21 11:28:10,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:10,148 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:10,148 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:10,148 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:10,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:10,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-21 11:28:10,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:10,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:28:10,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:10,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:10,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 11:28:10,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:28:10,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:10,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:10,244 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:10,244 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:10,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:10,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:10,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:10,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:10,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:10,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:10,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:10,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:10,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:10,299 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:10,299 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:10,300 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:10,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:10,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:28:10,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:10,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:28:10,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:10,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:10,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:10,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:28:10,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:10,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:28:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:10,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:10,382 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:10,382 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:10,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:10,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-21 11:28:10,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:10,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:28:10,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-21 11:28:10,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:10,578 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:28:10,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678194832] [2020-09-21 11:28:10,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:28:10,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:28:10,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66258586] [2020-09-21 11:28:10,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:28:10,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:10,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:28:10,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:28:10,582 INFO L87 Difference]: Start difference. First operand 1931 states and 2558 transitions. Second operand 7 states. [2020-09-21 11:28:14,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:14,946 INFO L93 Difference]: Finished difference Result 4029 states and 5458 transitions. [2020-09-21 11:28:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:28:14,947 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 261 [2020-09-21 11:28:14,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:14,960 INFO L225 Difference]: With dead ends: 4029 [2020-09-21 11:28:14,960 INFO L226 Difference]: Without dead ends: 2247 [2020-09-21 11:28:14,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:28:14,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2020-09-21 11:28:15,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 2235. [2020-09-21 11:28:15,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2020-09-21 11:28:15,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 2853 transitions. [2020-09-21 11:28:15,063 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 2853 transitions. Word has length 261 [2020-09-21 11:28:15,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:15,065 INFO L479 AbstractCegarLoop]: Abstraction has 2235 states and 2853 transitions. [2020-09-21 11:28:15,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:28:15,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 2853 transitions. [2020-09-21 11:28:15,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-09-21 11:28:15,076 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:15,077 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:15,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:28:15,078 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:15,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:15,078 INFO L82 PathProgramCache]: Analyzing trace with hash 740363633, now seen corresponding path program 1 times [2020-09-21 11:28:15,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:15,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512511730] [2020-09-21 11:28:15,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:15,205 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:15,205 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:15,206 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:15,206 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:15,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-09-21 11:28:15,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 11:28:15,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:28:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-09-21 11:28:15,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:15,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:15,331 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:15,332 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:15,332 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:15,332 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:15,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:15,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:15,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:28:15,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:15,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:15,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:15,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:15,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:15,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:15,386 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:15,386 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:15,387 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:15,387 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:15,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 11:28:15,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:15,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:28:15,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:15,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:15,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:15,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-21 11:28:15,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:15,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 11:28:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:15,471 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:15,472 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:15,472 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:15,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:15,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:28:15,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:15,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:28:15,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:15,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:15,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:15,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-21 11:28:15,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:15,820 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:28:15,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512511730] [2020-09-21 11:28:15,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:28:15,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:28:15,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522181581] [2020-09-21 11:28:15,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:28:15,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:15,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:28:15,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:28:15,823 INFO L87 Difference]: Start difference. First operand 2235 states and 2853 transitions. Second operand 7 states. [2020-09-21 11:28:17,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:17,607 INFO L93 Difference]: Finished difference Result 4337 states and 5587 transitions. [2020-09-21 11:28:17,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:28:17,612 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 262 [2020-09-21 11:28:17,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:17,623 INFO L225 Difference]: With dead ends: 4337 [2020-09-21 11:28:17,623 INFO L226 Difference]: Without dead ends: 2251 [2020-09-21 11:28:17,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:28:17,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2020-09-21 11:28:17,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 1804. [2020-09-21 11:28:17,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1804 states. [2020-09-21 11:28:17,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2174 transitions. [2020-09-21 11:28:17,690 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2174 transitions. Word has length 262 [2020-09-21 11:28:17,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:17,691 INFO L479 AbstractCegarLoop]: Abstraction has 1804 states and 2174 transitions. [2020-09-21 11:28:17,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:28:17,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2174 transitions. [2020-09-21 11:28:17,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-09-21 11:28:17,700 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:17,700 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:17,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:28:17,701 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:17,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:17,701 INFO L82 PathProgramCache]: Analyzing trace with hash -685542405, now seen corresponding path program 1 times [2020-09-21 11:28:17,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:17,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834685913] [2020-09-21 11:28:17,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:17,800 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:17,801 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:17,801 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:17,801 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:17,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-09-21 11:28:17,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:17,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:28:17,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:17,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:17,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 269 [2020-09-21 11:28:17,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:28:17,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:17,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:17,907 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:17,907 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:17,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:17,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:17,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:17,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:17,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:17,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:17,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:17,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:17,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:17,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:17,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:17,930 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:17,930 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:17,930 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:17,931 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:17,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:28:17,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:17,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:17,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:17,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:17,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:17,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:17,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:18,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:28:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:18,084 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:18,084 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:18,084 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:18,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:18,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-09-21 11:28:18,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:18,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:28:18,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:18,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:18,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:18,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-21 11:28:18,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:18,249 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-09-21 11:28:18,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834685913] [2020-09-21 11:28:18,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:28:18,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:28:18,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391529626] [2020-09-21 11:28:18,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:28:18,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:18,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:28:18,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:28:18,252 INFO L87 Difference]: Start difference. First operand 1804 states and 2174 transitions. Second operand 5 states. [2020-09-21 11:28:19,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:19,665 INFO L93 Difference]: Finished difference Result 3753 states and 4624 transitions. [2020-09-21 11:28:19,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:28:19,666 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 312 [2020-09-21 11:28:19,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:19,667 INFO L225 Difference]: With dead ends: 3753 [2020-09-21 11:28:19,667 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:28:19,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:28:19,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:28:19,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:28:19,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:28:19,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:28:19,676 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 312 [2020-09-21 11:28:19,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:19,676 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:28:19,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:28:19,676 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:28:19,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:28:19,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:28:19,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:28:20,216 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 80 [2020-09-21 11:28:20,324 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 80 [2020-09-21 11:28:20,936 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 48 [2020-09-21 11:28:21,170 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2020-09-21 11:28:21,388 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2020-09-21 11:28:21,393 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:28:21,394 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-09-21 11:28:21,394 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:28:21,394 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-09-21 11:28:21,394 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,395 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,395 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,395 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,395 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,395 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,395 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-09-21 11:28:21,395 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-09-21 11:28:21,395 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-21 11:28:21,395 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-21 11:28:21,395 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-21 11:28:21,395 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-21 11:28:21,396 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-21 11:28:21,396 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-21 11:28:21,396 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-09-21 11:28:21,396 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-09-21 11:28:21,396 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-09-21 11:28:21,396 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,396 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,396 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,397 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,397 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,397 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-09-21 11:28:21,397 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-09-21 11:28:21,397 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-09-21 11:28:21,397 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-09-21 11:28:21,397 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-21 11:28:21,397 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-21 11:28:21,397 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-21 11:28:21,398 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-21 11:28:21,398 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-21 11:28:21,398 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-09-21 11:28:21,398 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-09-21 11:28:21,398 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-09-21 11:28:21,398 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-09-21 11:28:21,398 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-09-21 11:28:21,398 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-09-21 11:28:21,398 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,398 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,399 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,399 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,399 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,399 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-09-21 11:28:21,399 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-21 11:28:21,399 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-21 11:28:21,399 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-21 11:28:21,399 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-21 11:28:21,399 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-21 11:28:21,400 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-09-21 11:28:21,400 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-09-21 11:28:21,400 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-09-21 11:28:21,400 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-09-21 11:28:21,400 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,400 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,400 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,400 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,400 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,401 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-09-21 11:28:21,401 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-09-21 11:28:21,401 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-09-21 11:28:21,401 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-09-21 11:28:21,401 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-21 11:28:21,401 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-21 11:28:21,401 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-21 11:28:21,401 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-21 11:28:21,401 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-09-21 11:28:21,402 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-09-21 11:28:21,402 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-09-21 11:28:21,402 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-09-21 11:28:21,402 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-09-21 11:28:21,402 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,402 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,402 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,403 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,403 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,403 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-21 11:28:21,403 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-21 11:28:21,403 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-21 11:28:21,403 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-21 11:28:21,403 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-21 11:28:21,403 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-09-21 11:28:21,403 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-09-21 11:28:21,404 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-09-21 11:28:21,404 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-09-21 11:28:21,404 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,404 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,404 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,404 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,404 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,404 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,404 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,404 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-09-21 11:28:21,404 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-09-21 11:28:21,404 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-09-21 11:28:21,404 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-09-21 11:28:21,405 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-21 11:28:21,405 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-21 11:28:21,405 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-21 11:28:21,405 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-21 11:28:21,405 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-21 11:28:21,405 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-09-21 11:28:21,405 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-09-21 11:28:21,405 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-09-21 11:28:21,405 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-09-21 11:28:21,405 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,406 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,406 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,406 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,406 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-09-21 11:28:21,406 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,406 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,406 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-09-21 11:28:21,407 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-09-21 11:28:21,407 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-09-21 11:28:21,407 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-21 11:28:21,407 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-21 11:28:21,407 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-21 11:28:21,407 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-21 11:28:21,407 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-21 11:28:21,407 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-21 11:28:21,408 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-09-21 11:28:21,408 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-09-21 11:28:21,408 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-09-21 11:28:21,408 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-09-21 11:28:21,408 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,408 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,408 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,408 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,409 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,409 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,409 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-09-21 11:28:21,409 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-09-21 11:28:21,409 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-09-21 11:28:21,409 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-21 11:28:21,409 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-21 11:28:21,409 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-21 11:28:21,410 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-21 11:28:21,410 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-21 11:28:21,410 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-21 11:28:21,410 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-09-21 11:28:21,410 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-09-21 11:28:21,410 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse2 (not (<= |old(~a19~0)| 9))) (.cse1 (not (= |old(~a10~0)| 1))) (.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or (not (<= 9 |old(~a19~0)|)) .cse0 .cse1) (or .cse0 .cse2 (not (= 2 |old(~a10~0)|))) (or .cse0 .cse2 (= 8 |old(~a19~0)|)) (or (not (<= |old(~a10~0)| 0)) .cse0) (or .cse0 .cse2 (not (= 4 |old(~a10~0)|))) (or (not (<= 331498 |old(~a1~0)|)) .cse1 .cse0 (not (= 14 ~a4~0)) (not (= ~a12~0 0))))) [2020-09-21 11:28:21,411 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-09-21 11:28:21,411 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-09-21 11:28:21,411 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-09-21 11:28:21,411 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,411 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,411 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,411 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,411 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,412 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,412 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-09-21 11:28:21,412 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-21 11:28:21,412 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-21 11:28:21,412 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-21 11:28:21,412 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-21 11:28:21,412 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-21 11:28:21,412 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-21 11:28:21,412 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-09-21 11:28:21,413 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-09-21 11:28:21,413 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-09-21 11:28:21,413 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-09-21 11:28:21,413 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-09-21 11:28:21,413 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-09-21 11:28:21,413 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,413 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,414 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,414 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,414 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,414 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,414 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-09-21 11:28:21,414 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-09-21 11:28:21,414 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-09-21 11:28:21,414 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-21 11:28:21,415 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-21 11:28:21,415 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-21 11:28:21,415 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-21 11:28:21,415 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-21 11:28:21,415 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-21 11:28:21,415 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-09-21 11:28:21,415 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-09-21 11:28:21,416 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-09-21 11:28:21,416 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,416 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,416 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,416 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,416 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,416 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:21,416 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-09-21 11:28:21,416 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-09-21 11:28:21,417 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-09-21 11:28:21,417 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-21 11:28:21,417 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-21 11:28:21,417 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-21 11:28:21,417 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-21 11:28:21,417 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-21 11:28:21,417 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-21 11:28:21,417 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-09-21 11:28:21,417 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-09-21 11:28:21,418 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-09-21 11:28:21,418 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:28:21,418 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-09-21 11:28:21,418 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:28:21,418 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:28:21,418 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (and (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23) (= ~a10~0 |old(~a10~0)|))) [2020-09-21 11:28:21,418 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-09-21 11:28:21,419 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (= ~a10~0 1)) (.cse1 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and (<= 331498 ~a1~0) .cse0 (= 14 ~a4~0) (= ~a12~0 0)) (<= ~a10~0 0) (not (<= |old(~a10~0)| 0)) (and (not (= ~a19~0 8)) .cse1) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 2) .cse1) (and .cse0 (<= 9 ~a19~0)) (and .cse1 (= ~a10~0 4)))) [2020-09-21 11:28:21,419 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-09-21 11:28:21,419 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-09-21 11:28:21,419 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (= ~a10~0 1)) (.cse1 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and (<= 331498 ~a1~0) .cse0 (= 14 ~a4~0) (= ~a12~0 0)) (<= ~a10~0 0) (not (<= |old(~a10~0)| 0)) (and (not (= ~a19~0 8)) .cse1) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 2) .cse1) (and .cse0 (<= 9 ~a19~0)) (and .cse1 (= ~a10~0 4)))) [2020-09-21 11:28:21,419 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-09-21 11:28:21,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:28:21 BoogieIcfgContainer [2020-09-21 11:28:21,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:28:21,449 INFO L168 Benchmark]: Toolchain (without parser) took 28168.67 ms. Allocated memory was 139.5 MB in the beginning and 526.4 MB in the end (delta: 386.9 MB). Free memory was 101.1 MB in the beginning and 366.6 MB in the end (delta: -265.5 MB). Peak memory consumption was 404.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:21,451 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-21 11:28:21,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 870.91 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.3 MB in the beginning and 169.7 MB in the end (delta: -69.5 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:21,456 INFO L168 Benchmark]: Boogie Preprocessor took 140.18 ms. Allocated memory is still 204.5 MB. Free memory was 169.7 MB in the beginning and 165.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:21,457 INFO L168 Benchmark]: RCFGBuilder took 1407.81 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 165.7 MB in the beginning and 181.7 MB in the end (delta: -16.0 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:21,459 INFO L168 Benchmark]: TraceAbstraction took 25735.80 ms. Allocated memory was 237.5 MB in the beginning and 526.4 MB in the end (delta: 288.9 MB). Free memory was 181.7 MB in the beginning and 366.6 MB in the end (delta: -184.9 MB). Peak memory consumption was 386.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:21,473 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 870.91 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.3 MB in the beginning and 169.7 MB in the end (delta: -69.5 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.18 ms. Allocated memory is still 204.5 MB. Free memory was 169.7 MB in the beginning and 165.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1407.81 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 165.7 MB in the beginning and 181.7 MB in the end (delta: -16.0 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25735.80 ms. Allocated memory was 237.5 MB in the beginning and 526.4 MB in the end (delta: 288.9 MB). Free memory was 181.7 MB in the beginning and 366.6 MB in the end (delta: -184.9 MB). Peak memory consumption was 386.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((((((!(23 <= \old(a1)) || (((331498 <= a1 && a10 == 1) && 14 == a4) && a12 == 0)) || a10 <= 0) || !(\old(a10) <= 0)) || (!(a19 == 8) && a19 <= 9)) || !(9 <= \old(a19))) || !(\old(a1) <= 23)) || !(\old(a19) <= 9)) || (a10 == 2 && a19 <= 9)) || (a10 == 1 && 9 <= a19)) || (a19 <= 9 && a10 == 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.8s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 18.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 3530 SDslu, 342 SDs, 0 SdLazy, 8557 SolverSat, 1185 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 14.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2235occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 1117 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 88 PreInvPairs, 118 NumberOfFragments, 335 HoareAnnotationTreeSize, 88 FomulaSimplifications, 33412 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1521 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1711 NumberOfCodeBlocks, 1711 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1702 ConstructedInterpolants, 0 QuantifiedInterpolants, 1022730 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 861/953 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 correct! Received shutdown request...