/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_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:26:59,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:26:59,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:26:59,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:26:59,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:26:59,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:26:59,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:26:59,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:26:59,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:26:59,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:26:59,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:26:59,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:26:59,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:26:59,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:26:59,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:26:59,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:26:59,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:26:59,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:26:59,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:26:59,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:26:59,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:26:59,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:26:59,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:26:59,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:26:59,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:26:59,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:26:59,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:26:59,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:26:59,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:26:59,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:26:59,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:26:59,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:26:59,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:26:59,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:26:59,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:26:59,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:26:59,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:26:59,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:26:59,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:26:59,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:26:59,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:26:59,192 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 11:26:59,252 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:26:59,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:26:59,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:26:59,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:26:59,254 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:26:59,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:26:59,255 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:26:59,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:26:59,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:26:59,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:26:59,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:26:59,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:26:59,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:26:59,257 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:26:59,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:26:59,257 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:26:59,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:26:59,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:26:59,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:26:59,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:26:59,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:26:59,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:26:59,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:26:59,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:26:59,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:26:59,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:26:59,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:26:59,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:26:59,261 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:26:59,261 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 11:26:59,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:26:59,779 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:26:59,783 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:26:59,785 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:26:59,786 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:26:59,787 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label05.c [2020-09-21 11:26:59,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84b394c1b/8a7cd2904a5942859a887efd9d7bbf35/FLAG7baf3104c [2020-09-21 11:27:00,531 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:27:00,532 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label05.c [2020-09-21 11:27:00,545 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84b394c1b/8a7cd2904a5942859a887efd9d7bbf35/FLAG7baf3104c [2020-09-21 11:27:00,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84b394c1b/8a7cd2904a5942859a887efd9d7bbf35 [2020-09-21 11:27:00,778 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:27:00,785 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:27:00,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:27:00,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:27:00,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:27:00,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:27:00" (1/1) ... [2020-09-21 11:27:00,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@347c51ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:00, skipping insertion in model container [2020-09-21 11:27:00,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:27:00" (1/1) ... [2020-09-21 11:27:00,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:27:00,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:27:01,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:27:01,407 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:27:01,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:27:01,518 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:27:01,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:01 WrapperNode [2020-09-21 11:27:01,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:27:01,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:27:01,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:27:01,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:27:01,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:01" (1/1) ... [2020-09-21 11:27:01,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:01" (1/1) ... [2020-09-21 11:27:01,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:01" (1/1) ... [2020-09-21 11:27:01,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:01" (1/1) ... [2020-09-21 11:27:01,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:01" (1/1) ... [2020-09-21 11:27:01,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:01" (1/1) ... [2020-09-21 11:27:01,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:01" (1/1) ... [2020-09-21 11:27:01,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:27:01,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:27:01,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:27:01,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:27:01,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:01" (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 11:27:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:27:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:27:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:27:01,739 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:27:01,739 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:27:01,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:27:01,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:27:01,739 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:27:01,739 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:27:01,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:27:01,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:27:03,075 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:27:03,075 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:27:03,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:27:03 BoogieIcfgContainer [2020-09-21 11:27:03,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:27:03,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:27:03,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:27:03,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:27:03,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:27:00" (1/3) ... [2020-09-21 11:27:03,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f35b330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:27:03, skipping insertion in model container [2020-09-21 11:27:03,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:01" (2/3) ... [2020-09-21 11:27:03,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f35b330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:27:03, skipping insertion in model container [2020-09-21 11:27:03,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:27:03" (3/3) ... [2020-09-21 11:27:03,092 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label05.c [2020-09-21 11:27:03,103 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:27:03,114 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:27:03,134 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:27:03,166 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:27:03,167 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:27:03,167 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:27:03,167 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:27:03,167 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:27:03,167 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:27:03,167 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:27:03,168 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:27:03,195 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-09-21 11:27:03,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-21 11:27:03,206 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:03,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:03,208 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:03,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:03,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1575146953, now seen corresponding path program 1 times [2020-09-21 11:27:03,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:03,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112110987] [2020-09-21 11:27:03,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:03,454 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:03,455 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:03,455 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:03,455 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:03,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-21 11:27:03,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:03,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 11:27:03,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:03,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:03,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:03,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-21 11:27:03,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:03,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:03,630 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:03,630 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:03,630 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:03,630 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:03,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:03,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:03,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:27:03,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:03,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:03,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:03,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:03,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:03,669 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 11:27:03,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112110987] [2020-09-21 11:27:03,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:03,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:27:03,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200596086] [2020-09-21 11:27:03,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:27:03,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:03,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:27:03,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:27:03,704 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2020-09-21 11:27:05,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:05,340 INFO L93 Difference]: Finished difference Result 596 states and 1021 transitions. [2020-09-21 11:27:05,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:05,343 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-09-21 11:27:05,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:05,372 INFO L225 Difference]: With dead ends: 596 [2020-09-21 11:27:05,372 INFO L226 Difference]: Without dead ends: 302 [2020-09-21 11:27:05,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:05,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-21 11:27:05,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 298. [2020-09-21 11:27:05,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-21 11:27:05,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 430 transitions. [2020-09-21 11:27:05,467 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 430 transitions. Word has length 58 [2020-09-21 11:27:05,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:05,468 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 430 transitions. [2020-09-21 11:27:05,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:27:05,468 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 430 transitions. [2020-09-21 11:27:05,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-21 11:27:05,474 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:05,475 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:27:05,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:27:05,475 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:05,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:05,476 INFO L82 PathProgramCache]: Analyzing trace with hash -2054791822, now seen corresponding path program 1 times [2020-09-21 11:27:05,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:05,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677872509] [2020-09-21 11:27:05,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:05,628 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:05,628 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:05,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:05,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:05,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-09-21 11:27:05,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:05,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-21 11:27:05,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:05,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:05,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:05,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-21 11:27:05,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:05,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:05,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:05,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:05,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:05,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:05,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:05,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:05,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:05,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:05,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:05,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:05,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:05,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:05,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:05,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:05,803 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:05,803 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:05,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:05,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-21 11:27:05,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:05,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:27:05,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:05,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:05,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:05,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-21 11:27:05,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:05,893 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:05,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677872509] [2020-09-21 11:27:05,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:05,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:27:05,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594173232] [2020-09-21 11:27:05,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:27:05,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:05,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:27:05,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:27:05,898 INFO L87 Difference]: Start difference. First operand 298 states and 430 transitions. Second operand 8 states. [2020-09-21 11:27:08,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:08,184 INFO L93 Difference]: Finished difference Result 1198 states and 1805 transitions. [2020-09-21 11:27:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:27:08,185 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-09-21 11:27:08,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:08,212 INFO L225 Difference]: With dead ends: 1198 [2020-09-21 11:27:08,212 INFO L226 Difference]: Without dead ends: 906 [2020-09-21 11:27:08,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:27:08,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2020-09-21 11:27:08,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 894. [2020-09-21 11:27:08,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-09-21 11:27:08,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1231 transitions. [2020-09-21 11:27:08,293 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1231 transitions. Word has length 132 [2020-09-21 11:27:08,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:08,294 INFO L479 AbstractCegarLoop]: Abstraction has 894 states and 1231 transitions. [2020-09-21 11:27:08,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:27:08,294 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1231 transitions. [2020-09-21 11:27:08,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-09-21 11:27:08,304 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:08,305 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:27:08,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:27:08,305 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:08,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:08,306 INFO L82 PathProgramCache]: Analyzing trace with hash -2085474635, now seen corresponding path program 1 times [2020-09-21 11:27:08,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:08,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825570961] [2020-09-21 11:27:08,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:08,383 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:27:08,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -84 [2020-09-21 11:27:08,384 FATAL L256 erpolLogProxyWrapper]: Difference in width: 84 [2020-09-21 11:27:08,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:08,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-21 11:27:08,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:08,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:27:08,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:08,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:08,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-21 11:27:08,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:27:08,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:08,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:08,555 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:08,555 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:08,556 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:08,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:08,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:08,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:08,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:08,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:08,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:08,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:08,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:08,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:08,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:08,601 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:27:08,602 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:08,602 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:08,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:08,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 11:27:08,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:08,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:27:08,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:08,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-21 11:27:08,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:08,667 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:08,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825570961] [2020-09-21 11:27:08,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:08,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:08,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593467335] [2020-09-21 11:27:08,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:08,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:08,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:08,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:08,670 INFO L87 Difference]: Start difference. First operand 894 states and 1231 transitions. Second operand 5 states. [2020-09-21 11:27:09,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:09,664 INFO L93 Difference]: Finished difference Result 1809 states and 2506 transitions. [2020-09-21 11:27:09,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:09,665 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2020-09-21 11:27:09,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:09,671 INFO L225 Difference]: With dead ends: 1809 [2020-09-21 11:27:09,671 INFO L226 Difference]: Without dead ends: 898 [2020-09-21 11:27:09,673 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 11:27:09,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-09-21 11:27:09,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 894. [2020-09-21 11:27:09,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-09-21 11:27:09,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1225 transitions. [2020-09-21 11:27:09,713 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1225 transitions. Word has length 137 [2020-09-21 11:27:09,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:09,714 INFO L479 AbstractCegarLoop]: Abstraction has 894 states and 1225 transitions. [2020-09-21 11:27:09,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:09,715 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1225 transitions. [2020-09-21 11:27:09,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-21 11:27:09,719 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:09,719 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:27:09,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:27:09,720 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:09,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:09,720 INFO L82 PathProgramCache]: Analyzing trace with hash 641153941, now seen corresponding path program 1 times [2020-09-21 11:27:09,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:09,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1824597883] [2020-09-21 11:27:09,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:09,781 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:09,781 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:09,781 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:09,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:09,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-21 11:27:09,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:09,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:27:09,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:09,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:09,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:09,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 11:27:09,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:09,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:09,862 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:09,862 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:09,862 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:09,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:09,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:09,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:09,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:09,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:09,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:09,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:09,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:09,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:09,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:09,923 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:09,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:09,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:09,924 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:09,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-21 11:27:09,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:09,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:27:09,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:09,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:09,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:09,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-21 11:27:09,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:10,013 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:10,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1824597883] [2020-09-21 11:27:10,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:10,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:27:10,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671082900] [2020-09-21 11:27:10,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:27:10,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:10,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:27:10,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:27:10,016 INFO L87 Difference]: Start difference. First operand 894 states and 1225 transitions. Second operand 8 states. [2020-09-21 11:27:11,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:11,657 INFO L93 Difference]: Finished difference Result 2412 states and 3455 transitions. [2020-09-21 11:27:11,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:27:11,658 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-21 11:27:11,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:11,671 INFO L225 Difference]: With dead ends: 2412 [2020-09-21 11:27:11,672 INFO L226 Difference]: Without dead ends: 1524 [2020-09-21 11:27:11,675 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 11:27:11,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2020-09-21 11:27:11,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1341. [2020-09-21 11:27:11,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1341 states. [2020-09-21 11:27:11,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1760 transitions. [2020-09-21 11:27:11,760 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1760 transitions. Word has length 153 [2020-09-21 11:27:11,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:11,761 INFO L479 AbstractCegarLoop]: Abstraction has 1341 states and 1760 transitions. [2020-09-21 11:27:11,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:27:11,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1760 transitions. [2020-09-21 11:27:11,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-21 11:27:11,765 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:11,766 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:27:11,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:27:11,766 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:11,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:11,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1883378406, now seen corresponding path program 1 times [2020-09-21 11:27:11,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:11,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802127257] [2020-09-21 11:27:11,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:11,876 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:11,877 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:11,877 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:11,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:11,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-21 11:27:11,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:11,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-21 11:27:11,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:11,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:11,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:11,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-21 11:27:11,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:11,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:11,971 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:11,971 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:11,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:11,972 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:11,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:11,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:11,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:11,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:11,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:11,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:11,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:11,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:11,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:12,069 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:12,070 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:12,070 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:12,071 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:12,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:27:12,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:12,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 11:27:12,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:12,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:12,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:12,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:27:12,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:12,202 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:12,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802127257] [2020-09-21 11:27:12,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:12,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:27:12,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885009221] [2020-09-21 11:27:12,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:12,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:12,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:12,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:12,209 INFO L87 Difference]: Start difference. First operand 1341 states and 1760 transitions. Second operand 7 states. [2020-09-21 11:27:13,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:13,568 INFO L93 Difference]: Finished difference Result 2847 states and 3736 transitions. [2020-09-21 11:27:13,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:27:13,569 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2020-09-21 11:27:13,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:13,584 INFO L225 Difference]: With dead ends: 2847 [2020-09-21 11:27:13,584 INFO L226 Difference]: Without dead ends: 1512 [2020-09-21 11:27:13,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 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 11:27:13,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2020-09-21 11:27:13,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1496. [2020-09-21 11:27:13,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1496 states. [2020-09-21 11:27:13,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 1939 transitions. [2020-09-21 11:27:13,641 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 1939 transitions. Word has length 154 [2020-09-21 11:27:13,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:13,642 INFO L479 AbstractCegarLoop]: Abstraction has 1496 states and 1939 transitions. [2020-09-21 11:27:13,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:13,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 1939 transitions. [2020-09-21 11:27:13,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-09-21 11:27:13,644 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:13,645 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:27:13,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:27:13,645 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:13,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:13,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1913054291, now seen corresponding path program 1 times [2020-09-21 11:27:13,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:13,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969286058] [2020-09-21 11:27:13,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:13,733 FATAL L256 erpolLogProxyWrapper]: Difference in size: 6 [2020-09-21 11:27:13,734 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -120 [2020-09-21 11:27:13,734 FATAL L256 erpolLogProxyWrapper]: Difference in width: 120 [2020-09-21 11:27:13,734 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:13,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-09-21 11:27:13,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:13,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:27:13,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:13,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 11:27:13,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:27:13,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:13,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:13,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:13,818 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:13,818 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:13,818 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:13,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:13,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:13,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:13,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:13,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:13,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:13,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:13,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:13,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:13,862 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:13,862 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:13,862 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:13,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:13,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:13,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:13,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:27:13,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:13,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:13,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:13,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:27:13,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:14,052 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:14,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969286058] [2020-09-21 11:27:14,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:14,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:14,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577294918] [2020-09-21 11:27:14,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:14,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:14,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:14,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:14,054 INFO L87 Difference]: Start difference. First operand 1496 states and 1939 transitions. Second operand 5 states. [2020-09-21 11:27:15,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:15,243 INFO L93 Difference]: Finished difference Result 2090 states and 2767 transitions. [2020-09-21 11:27:15,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:15,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 173 [2020-09-21 11:27:15,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:15,255 INFO L225 Difference]: With dead ends: 2090 [2020-09-21 11:27:15,255 INFO L226 Difference]: Without dead ends: 2088 [2020-09-21 11:27:15,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:27:15,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2020-09-21 11:27:15,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 1794. [2020-09-21 11:27:15,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1794 states. [2020-09-21 11:27:15,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2385 transitions. [2020-09-21 11:27:15,309 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2385 transitions. Word has length 173 [2020-09-21 11:27:15,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:15,310 INFO L479 AbstractCegarLoop]: Abstraction has 1794 states and 2385 transitions. [2020-09-21 11:27:15,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:15,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2385 transitions. [2020-09-21 11:27:15,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-21 11:27:15,315 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:15,315 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, 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] [2020-09-21 11:27:15,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:27:15,316 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:15,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:15,316 INFO L82 PathProgramCache]: Analyzing trace with hash -84814836, now seen corresponding path program 1 times [2020-09-21 11:27:15,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:15,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165800768] [2020-09-21 11:27:15,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:15,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:15,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:15,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:15,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:15,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-21 11:27:15,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:15,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:27:15,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:15,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:15,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-21 11:27:15,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:27:15,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:15,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:15,513 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:15,513 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:15,513 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:15,513 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:15,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:15,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:15,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:27:15,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:15,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:15,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:15,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:15,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:15,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:15,548 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:15,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:15,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:15,548 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:15,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:15,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:15,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:15,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:15,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:15,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:15,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:15,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:15,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:27:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:15,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:15,608 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:15,608 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:15,608 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:15,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:27:15,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:15,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:15,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-21 11:27:15,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:15,727 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 103 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-09-21 11:27:15,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165800768] [2020-09-21 11:27:15,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:15,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:15,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682705725] [2020-09-21 11:27:15,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:15,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:15,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:15,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:15,730 INFO L87 Difference]: Start difference. First operand 1794 states and 2385 transitions. Second operand 5 states. [2020-09-21 11:27:17,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:17,075 INFO L93 Difference]: Finished difference Result 4176 states and 5749 transitions. [2020-09-21 11:27:17,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:17,079 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 245 [2020-09-21 11:27:17,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:17,092 INFO L225 Difference]: With dead ends: 4176 [2020-09-21 11:27:17,092 INFO L226 Difference]: Without dead ends: 2531 [2020-09-21 11:27:17,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 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 11:27:17,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2531 states. [2020-09-21 11:27:17,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2531 to 2382. [2020-09-21 11:27:17,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2382 states. [2020-09-21 11:27:17,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3155 transitions. [2020-09-21 11:27:17,166 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3155 transitions. Word has length 245 [2020-09-21 11:27:17,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:17,167 INFO L479 AbstractCegarLoop]: Abstraction has 2382 states and 3155 transitions. [2020-09-21 11:27:17,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3155 transitions. [2020-09-21 11:27:17,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-09-21 11:27:17,175 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:17,175 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, 3, 3, 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] [2020-09-21 11:27:17,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:27:17,176 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:17,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:17,176 INFO L82 PathProgramCache]: Analyzing trace with hash -50393598, now seen corresponding path program 1 times [2020-09-21 11:27:17,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:17,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867801193] [2020-09-21 11:27:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:17,294 FATAL L256 erpolLogProxyWrapper]: Difference in size: 7 [2020-09-21 11:27:17,295 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -75 [2020-09-21 11:27:17,295 FATAL L256 erpolLogProxyWrapper]: Difference in width: 75 [2020-09-21 11:27:17,296 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:17,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-21 11:27:17,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:17,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:27:17,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:27:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-09-21 11:27:17,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:17,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:17,378 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:17,379 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:17,379 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:17,379 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:17,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:17,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:17,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:17,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:17,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:17,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:17,413 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:17,414 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:17,414 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:17,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:17,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 11:27:17,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:17,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:27:17,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:17,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:17,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:17,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-21 11:27:17,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:17,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 11:27:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:17,513 FATAL L256 erpolLogProxyWrapper]: Difference in size: 3 [2020-09-21 11:27:17,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:17,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:17,515 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:17,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-21 11:27:17,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:17,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 11:27:17,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:17,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:17,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:17,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-21 11:27:17,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:17,752 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 169 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:27:17,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867801193] [2020-09-21 11:27:17,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:17,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:17,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437571704] [2020-09-21 11:27:17,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:17,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:17,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:17,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:17,755 INFO L87 Difference]: Start difference. First operand 2382 states and 3155 transitions. Second operand 7 states. [2020-09-21 11:27:19,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:19,213 INFO L93 Difference]: Finished difference Result 5068 states and 6825 transitions. [2020-09-21 11:27:19,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:27:19,218 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 247 [2020-09-21 11:27:19,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:19,231 INFO L225 Difference]: With dead ends: 5068 [2020-09-21 11:27:19,232 INFO L226 Difference]: Without dead ends: 2835 [2020-09-21 11:27:19,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:27:19,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2020-09-21 11:27:19,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 2680. [2020-09-21 11:27:19,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2680 states. [2020-09-21 11:27:19,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 3494 transitions. [2020-09-21 11:27:19,317 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 3494 transitions. Word has length 247 [2020-09-21 11:27:19,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:19,318 INFO L479 AbstractCegarLoop]: Abstraction has 2680 states and 3494 transitions. [2020-09-21 11:27:19,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:19,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 3494 transitions. [2020-09-21 11:27:19,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-09-21 11:27:19,323 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:19,324 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:19,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:27:19,324 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:19,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:19,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1318768424, now seen corresponding path program 1 times [2020-09-21 11:27:19,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:19,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438797555] [2020-09-21 11:27:19,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:19,466 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:19,466 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:19,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:19,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:19,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-21 11:27:19,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:19,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-21 11:27:19,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:19,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:19,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 11:27:19,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:27:19,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:19,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:19,554 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:19,554 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:19,554 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:19,555 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:19,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:19,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:19,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:19,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:19,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:19,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:19,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:19,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:19,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:19,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:19,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:19,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:19,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:19,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:19,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:19,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:19,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:19,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:19,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:27:19,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:19,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:27:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:19,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:19,684 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:19,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:19,685 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:19,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:27:19,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:19,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:27:19,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:19,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:19,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:19,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-21 11:27:19,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:19,838 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 181 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:27:19,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438797555] [2020-09-21 11:27:19,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:19,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:19,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779908779] [2020-09-21 11:27:19,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:19,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:19,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:19,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:19,845 INFO L87 Difference]: Start difference. First operand 2680 states and 3494 transitions. Second operand 7 states. [2020-09-21 11:27:21,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:21,370 INFO L93 Difference]: Finished difference Result 5805 states and 7718 transitions. [2020-09-21 11:27:21,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:27:21,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 255 [2020-09-21 11:27:21,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:21,388 INFO L225 Difference]: With dead ends: 5805 [2020-09-21 11:27:21,389 INFO L226 Difference]: Without dead ends: 3274 [2020-09-21 11:27:21,397 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 11:27:21,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2020-09-21 11:27:21,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 3266. [2020-09-21 11:27:21,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3266 states. [2020-09-21 11:27:21,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3266 states to 3266 states and 4078 transitions. [2020-09-21 11:27:21,489 INFO L78 Accepts]: Start accepts. Automaton has 3266 states and 4078 transitions. Word has length 255 [2020-09-21 11:27:21,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:21,490 INFO L479 AbstractCegarLoop]: Abstraction has 3266 states and 4078 transitions. [2020-09-21 11:27:21,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:21,490 INFO L276 IsEmpty]: Start isEmpty. Operand 3266 states and 4078 transitions. [2020-09-21 11:27:21,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-09-21 11:27:21,496 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:21,497 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:21,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:27:21,497 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:21,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:21,498 INFO L82 PathProgramCache]: Analyzing trace with hash -231461933, now seen corresponding path program 1 times [2020-09-21 11:27:21,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:21,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076240880] [2020-09-21 11:27:21,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:21,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:21,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:21,648 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:21,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:21,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-21 11:27:21,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:21,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:27:21,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-09-21 11:27:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:27:21,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:21,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:21,748 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:21,748 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:21,748 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:21,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:21,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:21,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:21,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:21,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:21,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:21,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:21,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:21,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:21,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:21,772 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:21,772 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:21,772 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:21,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:21,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:21,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:21,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:27:21,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:21,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:21,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:27:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:21,834 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:21,834 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:21,834 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:21,834 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:21,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-21 11:27:21,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:21,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:27:21,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:21,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-21 11:27:21,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:21,907 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 103 proven. 2 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-09-21 11:27:21,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2076240880] [2020-09-21 11:27:21,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:21,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:21,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779386925] [2020-09-21 11:27:21,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:21,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:21,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:21,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:21,910 INFO L87 Difference]: Start difference. First operand 3266 states and 4078 transitions. Second operand 5 states. [2020-09-21 11:27:22,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:22,975 INFO L93 Difference]: Finished difference Result 6387 states and 8008 transitions. [2020-09-21 11:27:22,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:22,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 258 [2020-09-21 11:27:22,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:22,989 INFO L225 Difference]: With dead ends: 6387 [2020-09-21 11:27:22,989 INFO L226 Difference]: Without dead ends: 3270 [2020-09-21 11:27:22,997 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 11:27:23,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3270 states. [2020-09-21 11:27:23,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3270 to 3266. [2020-09-21 11:27:23,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3266 states. [2020-09-21 11:27:23,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3266 states to 3266 states and 3980 transitions. [2020-09-21 11:27:23,062 INFO L78 Accepts]: Start accepts. Automaton has 3266 states and 3980 transitions. Word has length 258 [2020-09-21 11:27:23,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:23,063 INFO L479 AbstractCegarLoop]: Abstraction has 3266 states and 3980 transitions. [2020-09-21 11:27:23,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:23,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3266 states and 3980 transitions. [2020-09-21 11:27:23,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-09-21 11:27:23,072 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:23,072 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:23,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:27:23,073 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:23,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:23,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1220432611, now seen corresponding path program 1 times [2020-09-21 11:27:23,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:23,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229010214] [2020-09-21 11:27:23,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:23,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:23,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:23,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:23,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:23,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 327 [2020-09-21 11:27:23,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:23,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:27:23,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:23,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:23,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 269 [2020-09-21 11:27:23,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:27:23,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:23,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:23,305 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:23,306 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:23,306 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:23,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:23,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:23,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:23,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:23,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:23,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:23,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:23,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:23,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:23,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:23,332 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:23,332 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:23,332 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:23,333 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:23,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:23,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:23,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:23,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:23,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:23,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:23,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:27:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:23,493 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:23,493 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:23,493 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:23,493 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:23,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-09-21 11:27:23,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:23,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:23,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:23,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:23,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:23,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-21 11:27:23,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:23,612 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 103 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-09-21 11:27:23,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229010214] [2020-09-21 11:27:23,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:23,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:23,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409529587] [2020-09-21 11:27:23,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:23,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:23,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:23,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:23,615 INFO L87 Difference]: Start difference. First operand 3266 states and 3980 transitions. Second operand 5 states. [2020-09-21 11:27:24,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:24,916 INFO L93 Difference]: Finished difference Result 7106 states and 8624 transitions. [2020-09-21 11:27:24,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:24,920 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 314 [2020-09-21 11:27:24,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:24,932 INFO L225 Difference]: With dead ends: 7106 [2020-09-21 11:27:24,932 INFO L226 Difference]: Without dead ends: 3111 [2020-09-21 11:27:24,941 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 11:27:24,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2020-09-21 11:27:25,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 2962. [2020-09-21 11:27:25,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2962 states. [2020-09-21 11:27:25,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 3500 transitions. [2020-09-21 11:27:25,006 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 3500 transitions. Word has length 314 [2020-09-21 11:27:25,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:25,007 INFO L479 AbstractCegarLoop]: Abstraction has 2962 states and 3500 transitions. [2020-09-21 11:27:25,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:25,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 3500 transitions. [2020-09-21 11:27:25,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2020-09-21 11:27:25,017 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:25,017 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-21 11:27:25,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:27:25,017 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:25,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:25,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1348342841, now seen corresponding path program 1 times [2020-09-21 11:27:25,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:25,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622731816] [2020-09-21 11:27:25,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:25,119 FATAL L256 erpolLogProxyWrapper]: Difference in size: 6 [2020-09-21 11:27:25,119 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -120 [2020-09-21 11:27:25,120 FATAL L256 erpolLogProxyWrapper]: Difference in width: 120 [2020-09-21 11:27:25,120 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:25,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 366 [2020-09-21 11:27:25,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:25,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:27:25,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:25,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:25,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 11:27:25,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-21 11:27:25,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:25,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:25,214 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:25,214 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:25,214 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:25,214 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:25,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:25,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:25,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:25,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:25,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:25,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:25,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:25,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:25,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:25,268 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:27:25,269 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:25,269 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:25,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:25,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:25,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:25,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:27:25,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:25,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:25,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:25,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:27:25,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:25,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:27:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:25,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:25,377 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:25,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:25,377 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:25,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:27:25,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:25,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:27:25,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:25,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:25,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:25,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:27:25,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:25,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-21 11:27:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:25,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:25,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:25,492 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:25,493 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:25,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:27:25,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:25,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:25,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:25,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:25,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:27:25,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:25,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:25,680 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 250 proven. 81 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-09-21 11:27:25,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622731816] [2020-09-21 11:27:25,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:25,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:25,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333530603] [2020-09-21 11:27:25,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:25,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:25,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:25,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:25,687 INFO L87 Difference]: Start difference. First operand 2962 states and 3500 transitions. Second operand 7 states. [2020-09-21 11:27:27,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:27,134 INFO L93 Difference]: Finished difference Result 6222 states and 7352 transitions. [2020-09-21 11:27:27,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:27:27,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 351 [2020-09-21 11:27:27,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:27,153 INFO L225 Difference]: With dead ends: 6222 [2020-09-21 11:27:27,153 INFO L226 Difference]: Without dead ends: 3409 [2020-09-21 11:27:27,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:27:27,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3409 states. [2020-09-21 11:27:27,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3409 to 3405. [2020-09-21 11:27:27,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3405 states. [2020-09-21 11:27:27,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3405 states to 3405 states and 3979 transitions. [2020-09-21 11:27:27,223 INFO L78 Accepts]: Start accepts. Automaton has 3405 states and 3979 transitions. Word has length 351 [2020-09-21 11:27:27,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:27,224 INFO L479 AbstractCegarLoop]: Abstraction has 3405 states and 3979 transitions. [2020-09-21 11:27:27,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:27,224 INFO L276 IsEmpty]: Start isEmpty. Operand 3405 states and 3979 transitions. [2020-09-21 11:27:27,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-09-21 11:27:27,235 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:27,235 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-21 11:27:27,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:27:27,235 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:27,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:27,236 INFO L82 PathProgramCache]: Analyzing trace with hash -580564460, now seen corresponding path program 1 times [2020-09-21 11:27:27,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:27,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1125529347] [2020-09-21 11:27:27,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:27,352 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:27,353 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:27,353 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:27,353 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:27,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 385 [2020-09-21 11:27:27,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:27,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:27:27,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-09-21 11:27:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:27:27,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:27,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:27,459 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:27,460 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:27,460 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:27,460 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:27,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:27,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:27,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:27,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:27,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:27,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:27,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:27,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:27,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:27,481 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:27,481 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:27,482 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:27,482 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:27,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:27:27,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:27,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:27,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:27,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:27,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:27,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:27,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:27,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-21 11:27:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:27,532 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:27,532 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:27,533 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:27,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:27,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:27:27,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:27,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:27,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:27,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:27,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:27,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:27,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:27,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-09-21 11:27:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:27,630 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:27,631 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:27,631 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:27,631 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:27,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:27:27,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:27,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:27:27,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:27,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:27,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:27,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:27:27,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:27,730 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 156 proven. 3 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2020-09-21 11:27:27,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1125529347] [2020-09-21 11:27:27,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:27,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:27,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718420480] [2020-09-21 11:27:27,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:27,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:27,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:27,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:27,732 INFO L87 Difference]: Start difference. First operand 3405 states and 3979 transitions. Second operand 5 states. [2020-09-21 11:27:28,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:28,929 INFO L93 Difference]: Finished difference Result 6951 states and 8118 transitions. [2020-09-21 11:27:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:28,930 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 370 [2020-09-21 11:27:28,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:28,954 INFO L225 Difference]: With dead ends: 6951 [2020-09-21 11:27:28,955 INFO L226 Difference]: Without dead ends: 3258 [2020-09-21 11:27:28,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 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 11:27:28,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3258 states. [2020-09-21 11:27:29,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3258 to 3254. [2020-09-21 11:27:29,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3254 states. [2020-09-21 11:27:29,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 3788 transitions. [2020-09-21 11:27:29,023 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 3788 transitions. Word has length 370 [2020-09-21 11:27:29,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:29,024 INFO L479 AbstractCegarLoop]: Abstraction has 3254 states and 3788 transitions. [2020-09-21 11:27:29,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:29,024 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 3788 transitions. [2020-09-21 11:27:29,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2020-09-21 11:27:29,036 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:29,037 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:27:29,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 11:27:29,037 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:29,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:29,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1667396282, now seen corresponding path program 1 times [2020-09-21 11:27:29,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:29,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592871952] [2020-09-21 11:27:29,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:29,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:29,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:29,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:29,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:29,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 403 [2020-09-21 11:27:29,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:29,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 11:27:29,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:29,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 345 [2020-09-21 11:27:29,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:27:29,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:29,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:29,284 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:29,284 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:29,284 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:29,284 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:29,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:29,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:29,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:29,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:29,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:29,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:29,312 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:29,312 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:29,312 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:29,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:29,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:27:29,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:29,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:29,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:29,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:29,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:29,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:29,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-21 11:27:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:29,375 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:29,375 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:29,376 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:29,376 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:29,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-21 11:27:29,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:29,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:29,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:29,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:29,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:29,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-21 11:27:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:29,432 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:29,433 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:29,433 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:29,433 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:29,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-21 11:27:29,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:29,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:27:29,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:29,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:29,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:29,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-21 11:27:29,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:29,641 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 156 proven. 3 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-09-21 11:27:29,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [592871952] [2020-09-21 11:27:29,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:29,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:29,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121322284] [2020-09-21 11:27:29,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:29,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:29,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:29,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:29,643 INFO L87 Difference]: Start difference. First operand 3254 states and 3788 transitions. Second operand 5 states. [2020-09-21 11:27:30,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:30,725 INFO L93 Difference]: Finished difference Result 6214 states and 7251 transitions. [2020-09-21 11:27:30,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:30,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 388 [2020-09-21 11:27:30,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:30,731 INFO L225 Difference]: With dead ends: 6214 [2020-09-21 11:27:30,731 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:27:30,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 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 11:27:30,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:27:30,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:27:30,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:27:30,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:27:30,742 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 388 [2020-09-21 11:27:30,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:30,742 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:27:30,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:30,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:27:30,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:27:30,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-21 11:27:30,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:27:31,806 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 102 [2020-09-21 11:27:32,059 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 102 [2020-09-21 11:27:32,914 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 58 [2020-09-21 11:27:33,339 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 57 [2020-09-21 11:27:33,761 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 57 [2020-09-21 11:27:33,765 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:27:33,765 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 11:27:33,766 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:27:33,766 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-09-21 11:27:33,766 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,766 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,766 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,766 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,766 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,767 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,767 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-09-21 11:27:33,767 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-09-21 11:27:33,767 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-21 11:27:33,768 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-21 11:27:33,768 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-21 11:27:33,768 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-21 11:27:33,768 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-21 11:27:33,768 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-21 11:27:33,768 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-09-21 11:27:33,769 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-09-21 11:27:33,769 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-09-21 11:27:33,769 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,769 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,769 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,769 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,769 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,769 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-09-21 11:27:33,770 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-09-21 11:27:33,770 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-09-21 11:27:33,770 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-09-21 11:27:33,770 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-21 11:27:33,770 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-21 11:27:33,770 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-21 11:27:33,770 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-21 11:27:33,770 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-21 11:27:33,770 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-09-21 11:27:33,771 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-09-21 11:27:33,771 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-09-21 11:27:33,771 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-09-21 11:27:33,771 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 160) no Hoare annotation was computed. [2020-09-21 11:27:33,771 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-09-21 11:27:33,771 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,771 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,772 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,772 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,772 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,772 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-09-21 11:27:33,772 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-21 11:27:33,772 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-21 11:27:33,772 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-21 11:27:33,772 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-21 11:27:33,772 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-21 11:27:33,773 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-09-21 11:27:33,773 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-09-21 11:27:33,773 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-09-21 11:27:33,773 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-09-21 11:27:33,773 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,773 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,773 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,773 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,773 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,773 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-09-21 11:27:33,774 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-09-21 11:27:33,774 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-09-21 11:27:33,774 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-09-21 11:27:33,774 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-21 11:27:33,774 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-21 11:27:33,774 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-21 11:27:33,774 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-21 11:27:33,774 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-09-21 11:27:33,775 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-09-21 11:27:33,775 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-09-21 11:27:33,775 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-09-21 11:27:33,775 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-09-21 11:27:33,775 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,775 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,775 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,775 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,775 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,776 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-21 11:27:33,776 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-21 11:27:33,776 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-21 11:27:33,776 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-21 11:27:33,776 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-21 11:27:33,776 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-09-21 11:27:33,776 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-09-21 11:27:33,776 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-09-21 11:27:33,776 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-09-21 11:27:33,776 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,776 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,776 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,776 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,776 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,777 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,777 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,777 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-09-21 11:27:33,777 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-09-21 11:27:33,777 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-09-21 11:27:33,777 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-09-21 11:27:33,777 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-21 11:27:33,777 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-21 11:27:33,777 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-21 11:27:33,777 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-21 11:27:33,777 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-21 11:27:33,777 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-09-21 11:27:33,778 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-09-21 11:27:33,778 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-09-21 11:27:33,778 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-09-21 11:27:33,778 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,778 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,778 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,778 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,778 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-09-21 11:27:33,779 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,779 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,779 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-09-21 11:27:33,779 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-09-21 11:27:33,779 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-09-21 11:27:33,779 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-21 11:27:33,779 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-21 11:27:33,779 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-21 11:27:33,779 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-21 11:27:33,779 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-21 11:27:33,779 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-21 11:27:33,779 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-21 11:27:33,780 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-21 11:27:33,781 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-21 11:27:33,781 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-21 11:27:33,781 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-21 11:27:33,781 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-09-21 11:27:33,781 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-09-21 11:27:33,781 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse4 (not (= |old(~a10~0)| 1))) (.cse2 (not (= 10 |old(~a19~0)|))) (.cse0 (not (<= |old(~a10~0)| 0))) (.cse1 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse3 (not (<= |old(~a19~0)| 9)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse3 (not (= 2 |old(~a10~0)|))) (or (not (= 9 |old(~a19~0)|)) .cse1) (or .cse4 .cse1 (not (= 7 |old(~a19~0)|))) (or .cse1 (not (= 8 |old(~a19~0)|))) (or (not (<= 219 |old(~a1~0)|)) .cse1 .cse3) (or .cse1 .cse4 .cse2) (or .cse1 (not (<= |old(~a1~0)| 23)) .cse3) (or .cse0 .cse1 .cse3) (or (not (= 3 |old(~a10~0)|)) .cse1 .cse3))) [2020-09-21 11:27:33,781 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-09-21 11:27:33,781 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-09-21 11:27:33,781 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-09-21 11:27:33,782 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,782 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,782 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,782 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,782 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,782 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,782 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-09-21 11:27:33,782 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-21 11:27:33,782 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-21 11:27:33,783 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-21 11:27:33,783 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-21 11:27:33,783 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-21 11:27:33,783 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-21 11:27:33,783 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-09-21 11:27:33,783 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-09-21 11:27:33,783 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-09-21 11:27:33,783 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-09-21 11:27:33,783 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-09-21 11:27:33,784 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-09-21 11:27:33,784 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,784 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,784 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,784 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,784 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,784 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,784 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-09-21 11:27:33,784 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-09-21 11:27:33,785 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-09-21 11:27:33,785 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-21 11:27:33,785 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-21 11:27:33,785 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-21 11:27:33,785 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-21 11:27:33,785 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-21 11:27:33,785 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-21 11:27:33,785 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-09-21 11:27:33,786 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-09-21 11:27:33,786 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-09-21 11:27:33,786 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,786 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,786 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,786 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,786 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,786 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:33,786 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-09-21 11:27:33,787 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-09-21 11:27:33,787 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-09-21 11:27:33,787 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-21 11:27:33,787 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-21 11:27:33,787 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-21 11:27:33,787 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-21 11:27:33,787 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-21 11:27:33,787 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-21 11:27:33,787 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-09-21 11:27:33,787 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-09-21 11:27:33,788 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-09-21 11:27:33,788 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:27:33,788 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-09-21 11:27:33,788 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:27:33,788 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:27:33,788 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)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23))) [2020-09-21 11:27:33,788 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-09-21 11:27:33,789 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse1 (<= ~a10~0 0)) (.cse4 (= ~a10~0 1)) (.cse2 (= ~a19~0 10)) (.cse5 (<= ~a1~0 23)) (.cse0 (or (<= (+ |old(~a1~0)| 13) 0) (= 0 |old(~a10~0)|))) (.cse3 (<= ~a19~0 9)) (.cse6 (= ~a10~0 3))) (or (and .cse0 .cse1 .cse2) (and .cse0 (= ~a10~0 2) .cse3) (and .cse0 .cse1 .cse3) (and .cse0 .cse4 (= 7 ~a19~0)) (and .cse0 .cse3 .cse5) (and .cse0 .cse3 (<= 219 ~a1~0)) (and .cse0 (= ~a19~0 9)) (not (<= 23 |old(~a1~0)|)) (and .cse0 .cse4 .cse2) (not (<= |old(~a10~0)| 0)) (and (<= 23 ~a1~0) .cse5 (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (and .cse0 .cse6 .cse3) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and (= ~a19~0 8) (not .cse6)))) [2020-09-21 11:27:33,789 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-09-21 11:27:33,789 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-09-21 11:27:33,789 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse1 (<= ~a10~0 0)) (.cse4 (= ~a10~0 1)) (.cse2 (= ~a19~0 10)) (.cse5 (<= ~a1~0 23)) (.cse0 (or (<= (+ |old(~a1~0)| 13) 0) (= 0 |old(~a10~0)|))) (.cse3 (<= ~a19~0 9)) (.cse6 (= ~a10~0 3))) (or (and .cse0 .cse1 .cse2) (and .cse0 (= ~a10~0 2) .cse3) (and .cse0 .cse1 .cse3) (and .cse0 .cse4 (= 7 ~a19~0)) (and .cse0 .cse3 .cse5) (and .cse0 .cse3 (<= 219 ~a1~0)) (and .cse0 (= ~a19~0 9)) (not (<= 23 |old(~a1~0)|)) (and .cse0 .cse4 .cse2) (not (<= |old(~a10~0)| 0)) (and (<= 23 ~a1~0) .cse5 (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (and .cse0 .cse6 .cse3) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and (= ~a19~0 8) (not .cse6)))) [2020-09-21 11:27:33,789 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-09-21 11:27:33,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:27:33 BoogieIcfgContainer [2020-09-21 11:27:33,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:27:33,817 INFO L168 Benchmark]: Toolchain (without parser) took 33037.00 ms. Allocated memory was 138.4 MB in the beginning and 783.3 MB in the end (delta: 644.9 MB). Free memory was 100.0 MB in the beginning and 695.6 MB in the end (delta: -595.5 MB). Peak memory consumption was 599.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:33,818 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:27:33,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.24 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.4 MB in the beginning and 167.8 MB in the end (delta: -68.4 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:33,819 INFO L168 Benchmark]: Boogie Preprocessor took 136.92 ms. Allocated memory is still 202.4 MB. Free memory was 167.8 MB in the beginning and 163.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:33,820 INFO L168 Benchmark]: RCFGBuilder took 1425.68 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 163.4 MB in the beginning and 178.5 MB in the end (delta: -15.1 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:33,820 INFO L168 Benchmark]: TraceAbstraction took 30731.37 ms. Allocated memory was 233.3 MB in the beginning and 783.3 MB in the end (delta: 550.0 MB). Free memory was 178.5 MB in the beginning and 695.6 MB in the end (delta: -517.1 MB). Peak memory consumption was 582.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:33,823 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 731.24 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.4 MB in the beginning and 167.8 MB in the end (delta: -68.4 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.92 ms. Allocated memory is still 202.4 MB. Free memory was 167.8 MB in the beginning and 163.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1425.68 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 163.4 MB in the beginning and 178.5 MB in the end (delta: -15.1 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30731.37 ms. Allocated memory was 233.3 MB in the beginning and 783.3 MB in the end (delta: 550.0 MB). Free memory was 178.5 MB in the beginning and 695.6 MB in the end (delta: -517.1 MB). Peak memory consumption was 582.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 160]: 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: ((((((((((((((((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a10 <= 0) && a19 == 10) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a10 == 2) && a19 <= 9)) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a10 <= 0) && a19 <= 9)) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a10 == 1) && 7 == a19)) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a19 <= 9) && a1 <= 23)) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a19 <= 9) && 219 <= a1)) || ((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a19 == 9)) || !(23 <= \old(a1))) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a10 == 1) && a19 == 10)) || !(\old(a10) <= 0)) || (((23 <= a1 && a1 <= 23) && a19 == \old(a19)) && a10 == \old(a10))) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a10 == 3) && a19 <= 9)) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || (a19 == 8 && !(a10 == 3)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 27.5s, OverallIterations: 14, TraceHistogramMax: 4, AutomataDifference: 19.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 380 SDtfs, 5431 SDslu, 406 SDs, 0 SdLazy, 11107 SolverSat, 1301 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3405occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 986 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 208 PreInvPairs, 270 NumberOfFragments, 616 HoareAnnotationTreeSize, 208 FomulaSimplifications, 38720 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3218 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 3235 NumberOfCodeBlocks, 3235 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3221 ConstructedInterpolants, 0 QuantifiedInterpolants, 1742088 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 2342/2441 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...