/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_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:27:54,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:27:54,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:27:54,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:27:54,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:27:54,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:27:54,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:27:54,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:27:54,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:27:54,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:27:54,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:27:54,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:27:54,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:27:54,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:27:54,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:27:54,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:27:54,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:27:54,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:27:54,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:27:54,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:27:54,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:27:54,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:27:54,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:27:54,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:27:54,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:27:54,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:27:54,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:27:54,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:27:54,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:27:54,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:27:54,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:27:54,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:27:54,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:27:54,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:27:54,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:27:54,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:27:54,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:27:54,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:27:54,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:27:54,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:27:54,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:27:54,989 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:27:55,030 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:27:55,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:27:55,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:27:55,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:27:55,032 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:27:55,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:27:55,033 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:27:55,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:27:55,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:27:55,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:27:55,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:27:55,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:27:55,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:27:55,034 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:27:55,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:27:55,035 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:27:55,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:27:55,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:27:55,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:27:55,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:27:55,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:27:55,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:27:55,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:27:55,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:27:55,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:27:55,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:27:55,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:27:55,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:27:55,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:27:55,038 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:27:55,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:27:55,548 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:27:55,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:27:55,558 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:27:55,559 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:27:55,560 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label53.c [2020-09-21 11:27:55,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98771f2b5/556aed99adff4ceaa6b3f30e6de017e7/FLAG892c662e1 [2020-09-21 11:27:56,328 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:27:56,329 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label53.c [2020-09-21 11:27:56,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98771f2b5/556aed99adff4ceaa6b3f30e6de017e7/FLAG892c662e1 [2020-09-21 11:27:56,615 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98771f2b5/556aed99adff4ceaa6b3f30e6de017e7 [2020-09-21 11:27:56,630 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:27:56,636 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:27:56,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:27:56,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:27:56,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:27:56,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:27:56" (1/1) ... [2020-09-21 11:27:56,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be82de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:56, skipping insertion in model container [2020-09-21 11:27:56,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:27:56" (1/1) ... [2020-09-21 11:27:56,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:27:56,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:27:57,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:27:57,316 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:27:57,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:27:57,478 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:27:57,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:57 WrapperNode [2020-09-21 11:27:57,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:27:57,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:27:57,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:27:57,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:27:57,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:57" (1/1) ... [2020-09-21 11:27:57,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:57" (1/1) ... [2020-09-21 11:27:57,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:57" (1/1) ... [2020-09-21 11:27:57,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:57" (1/1) ... [2020-09-21 11:27:57,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:57" (1/1) ... [2020-09-21 11:27:57,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:57" (1/1) ... [2020-09-21 11:27:57,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:57" (1/1) ... [2020-09-21 11:27:57,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:27:57,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:27:57,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:27:57,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:27:57,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:57" (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 11:27:57,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:27:57,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:27:57,688 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:27:57,688 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:27:57,688 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:27:57,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:27:57,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:27:57,689 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:27:57,689 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:27:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:27:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:27:59,024 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:27:59,025 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:27:59,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:27:59 BoogieIcfgContainer [2020-09-21 11:27:59,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:27:59,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:27:59,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:27:59,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:27:59,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:27:56" (1/3) ... [2020-09-21 11:27:59,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58300338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:27:59, skipping insertion in model container [2020-09-21 11:27:59,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:57" (2/3) ... [2020-09-21 11:27:59,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58300338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:27:59, skipping insertion in model container [2020-09-21 11:27:59,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:27:59" (3/3) ... [2020-09-21 11:27:59,043 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label53.c [2020-09-21 11:27:59,055 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:27:59,066 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:27:59,089 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:27:59,123 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:27:59,124 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:27:59,124 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:27:59,124 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:27:59,124 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:27:59,124 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:27:59,125 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:27:59,125 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:27:59,153 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-09-21 11:27:59,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-21 11:27:59,164 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:59,165 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] [2020-09-21 11:27:59,166 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:59,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:59,174 INFO L82 PathProgramCache]: Analyzing trace with hash 253834415, now seen corresponding path program 1 times [2020-09-21 11:27:59,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:59,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144384367] [2020-09-21 11:27:59,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:59,451 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:59,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:59,452 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:59,452 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:59,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-21 11:27:59,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:59,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-21 11:27:59,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:59,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:59,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:59,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:27:59,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:59,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:59,650 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:59,650 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:59,654 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:59,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:59,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:59,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:59,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:27:59,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:59,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:59,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:59,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:59,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:59,701 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 11:27:59,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144384367] [2020-09-21 11:27:59,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:59,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:27:59,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077658377] [2020-09-21 11:27:59,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:59,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:59,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:59,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:59,739 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-09-21 11:28:02,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:02,152 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-09-21 11:28:02,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:28:02,156 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-09-21 11:28:02,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:02,196 INFO L225 Difference]: With dead ends: 730 [2020-09-21 11:28:02,196 INFO L226 Difference]: Without dead ends: 447 [2020-09-21 11:28:02,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:28:02,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-21 11:28:02,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-09-21 11:28:02,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-09-21 11:28:02,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-09-21 11:28:02,315 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 48 [2020-09-21 11:28:02,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:02,316 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-09-21 11:28:02,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:28:02,316 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-09-21 11:28:02,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-21 11:28:02,323 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:02,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:02,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:28:02,324 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:02,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:02,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1295505465, now seen corresponding path program 1 times [2020-09-21 11:28:02,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:02,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576138353] [2020-09-21 11:28:02,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:02,556 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:02,556 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:02,556 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:02,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:02,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 11:28:02,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:02,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-21 11:28:02,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:02,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:28:02,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:28:02,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:28:02,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:02,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:02,688 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:02,689 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:02,689 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:02,689 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:02,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:02,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:02,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:28:02,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:02,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:28:02,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 11:28:02,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:02,855 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:02,855 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:02,855 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:02,855 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:02,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-21 11:28:02,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:02,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-21 11:28:02,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:02,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:02,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:02,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-21 11:28:02,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 23 [2020-09-21 11:28:02,973 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:28:02,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576138353] [2020-09-21 11:28:02,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:28:02,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:28:02,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002022353] [2020-09-21 11:28:02,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:28:02,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:02,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:28:02,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:28:02,978 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 8 states. [2020-09-21 11:28:04,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:04,759 INFO L93 Difference]: Finished difference Result 1041 states and 1612 transitions. [2020-09-21 11:28:04,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:28:04,760 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-09-21 11:28:04,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:04,764 INFO L225 Difference]: With dead ends: 1041 [2020-09-21 11:28:04,765 INFO L226 Difference]: Without dead ends: 606 [2020-09-21 11:28:04,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:28:04,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-09-21 11:28:04,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 592. [2020-09-21 11:28:04,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-21 11:28:04,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 829 transitions. [2020-09-21 11:28:04,814 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 829 transitions. Word has length 121 [2020-09-21 11:28:04,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:04,815 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 829 transitions. [2020-09-21 11:28:04,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:28:04,815 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 829 transitions. [2020-09-21 11:28:04,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-21 11:28:04,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:04,826 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:04,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:28:04,827 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:04,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:04,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1735493107, now seen corresponding path program 1 times [2020-09-21 11:28:04,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:04,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691063384] [2020-09-21 11:28:04,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:04,941 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:28:04,941 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -84 [2020-09-21 11:28:04,941 FATAL L256 erpolLogProxyWrapper]: Difference in width: 84 [2020-09-21 11:28:04,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:04,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:28:04,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:04,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:28:04,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:04,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:04,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-21 11:28:04,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:28:04,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:05,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:05,107 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:05,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:05,107 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:05,107 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:05,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:05,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:05,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:05,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:05,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:05,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:05,166 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:28:05,167 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:05,167 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:05,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:05,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 11:28:05,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:05,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:28:05,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:05,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:05,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:05,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-21 11:28:05,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 40 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:28:05,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691063384] [2020-09-21 11:28:05,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:28:05,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:28:05,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155091659] [2020-09-21 11:28:05,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:28:05,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:05,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:28:05,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:28:05,239 INFO L87 Difference]: Start difference. First operand 592 states and 829 transitions. Second operand 5 states. [2020-09-21 11:28:06,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:06,224 INFO L93 Difference]: Finished difference Result 1209 states and 1700 transitions. [2020-09-21 11:28:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:28:06,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-09-21 11:28:06,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:06,233 INFO L225 Difference]: With dead ends: 1209 [2020-09-21 11:28:06,234 INFO L226 Difference]: Without dead ends: 600 [2020-09-21 11:28:06,236 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 11:28:06,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-09-21 11:28:06,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 592. [2020-09-21 11:28:06,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-21 11:28:06,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 825 transitions. [2020-09-21 11:28:06,262 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 825 transitions. Word has length 127 [2020-09-21 11:28:06,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:06,263 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 825 transitions. [2020-09-21 11:28:06,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:28:06,264 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 825 transitions. [2020-09-21 11:28:06,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-21 11:28:06,267 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:06,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:06,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:28:06,268 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:06,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:06,269 INFO L82 PathProgramCache]: Analyzing trace with hash 865078570, now seen corresponding path program 1 times [2020-09-21 11:28:06,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:06,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815711791] [2020-09-21 11:28:06,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:06,328 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:06,329 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:06,329 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:06,329 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:06,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-09-21 11:28:06,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:06,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:28:06,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:06,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:28:06,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:28:06,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-21 11:28:06,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:06,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:06,410 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:06,410 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:06,411 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:06,411 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:06,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:06,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:06,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:28:06,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:06,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:06,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:06,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:28:06,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:06,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:06,459 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:06,459 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:06,459 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:06,460 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:06,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-21 11:28:06,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:06,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:28:06,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:06,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:06,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:06,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-21 11:28:06,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:06,547 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:28:06,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815711791] [2020-09-21 11:28:06,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:28:06,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:28:06,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952969797] [2020-09-21 11:28:06,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:28:06,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:06,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:28:06,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:28:06,551 INFO L87 Difference]: Start difference. First operand 592 states and 825 transitions. Second operand 7 states. [2020-09-21 11:28:08,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:08,125 INFO L93 Difference]: Finished difference Result 1794 states and 2570 transitions. [2020-09-21 11:28:08,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:28:08,126 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-09-21 11:28:08,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:08,136 INFO L225 Difference]: With dead ends: 1794 [2020-09-21 11:28:08,136 INFO L226 Difference]: Without dead ends: 1208 [2020-09-21 11:28:08,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:28:08,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-09-21 11:28:08,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 755. [2020-09-21 11:28:08,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2020-09-21 11:28:08,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1046 transitions. [2020-09-21 11:28:08,198 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1046 transitions. Word has length 138 [2020-09-21 11:28:08,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:08,199 INFO L479 AbstractCegarLoop]: Abstraction has 755 states and 1046 transitions. [2020-09-21 11:28:08,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:28:08,200 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1046 transitions. [2020-09-21 11:28:08,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-21 11:28:08,204 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:08,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:08,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:28:08,205 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:08,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:08,205 INFO L82 PathProgramCache]: Analyzing trace with hash 881347486, now seen corresponding path program 1 times [2020-09-21 11:28:08,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:08,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461071888] [2020-09-21 11:28:08,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:08,293 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:08,293 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:08,294 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:08,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:08,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-09-21 11:28:08,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:08,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:28:08,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:28:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:28:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-21 11:28:08,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:08,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:08,371 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:08,372 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:08,372 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:08,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:08,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:08,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:08,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:28:08,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:08,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:28:08,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:08,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:08,481 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:08,481 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:08,481 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:08,482 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:08,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:28:08,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:08,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:28:08,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:08,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:08,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:08,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-21 11:28:08,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:28:08,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461071888] [2020-09-21 11:28:08,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:28:08,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:28:08,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945074251] [2020-09-21 11:28:08,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:28:08,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:08,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:28:08,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:28:08,598 INFO L87 Difference]: Start difference. First operand 755 states and 1046 transitions. Second operand 8 states. [2020-09-21 11:28:10,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:10,987 INFO L93 Difference]: Finished difference Result 2696 states and 3889 transitions. [2020-09-21 11:28:10,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:28:10,988 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 160 [2020-09-21 11:28:10,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:11,005 INFO L225 Difference]: With dead ends: 2696 [2020-09-21 11:28:11,006 INFO L226 Difference]: Without dead ends: 1947 [2020-09-21 11:28:11,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:28:11,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2020-09-21 11:28:11,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1641. [2020-09-21 11:28:11,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1641 states. [2020-09-21 11:28:11,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 2189 transitions. [2020-09-21 11:28:11,079 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 2189 transitions. Word has length 160 [2020-09-21 11:28:11,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:11,080 INFO L479 AbstractCegarLoop]: Abstraction has 1641 states and 2189 transitions. [2020-09-21 11:28:11,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:28:11,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 2189 transitions. [2020-09-21 11:28:11,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-21 11:28:11,086 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:11,087 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:11,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:28:11,087 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:11,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:11,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1444149127, now seen corresponding path program 1 times [2020-09-21 11:28:11,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:11,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978713947] [2020-09-21 11:28:11,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:11,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:11,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:11,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:11,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:11,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-21 11:28:11,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:11,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-21 11:28:11,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:28:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:28:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-21 11:28:11,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:11,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:11,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:11,281 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:11,281 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:11,281 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:11,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:11,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:11,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:28:11,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:11,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:11,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:11,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:28:11,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:11,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:11,368 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:11,368 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:11,368 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:11,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:11,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:28:11,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:11,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 11:28:11,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:11,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:11,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:11,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:28:11,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:11,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-21 11:28:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:11,477 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:11,478 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:11,478 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:11,478 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:11,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-21 11:28:11,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:11,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:11,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-09-21 11:28:11,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:11,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:11,598 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 82 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 11:28:11,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978713947] [2020-09-21 11:28:11,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:28:11,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:28:11,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628543298] [2020-09-21 11:28:11,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:28:11,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:11,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:28:11,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:28:11,602 INFO L87 Difference]: Start difference. First operand 1641 states and 2189 transitions. Second operand 7 states. [2020-09-21 11:28:13,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:13,063 INFO L93 Difference]: Finished difference Result 3437 states and 4595 transitions. [2020-09-21 11:28:13,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:28:13,065 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 234 [2020-09-21 11:28:13,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:13,074 INFO L225 Difference]: With dead ends: 3437 [2020-09-21 11:28:13,075 INFO L226 Difference]: Without dead ends: 1802 [2020-09-21 11:28:13,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:28:13,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2020-09-21 11:28:13,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1786. [2020-09-21 11:28:13,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1786 states. [2020-09-21 11:28:13,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2351 transitions. [2020-09-21 11:28:13,137 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2351 transitions. Word has length 234 [2020-09-21 11:28:13,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:13,137 INFO L479 AbstractCegarLoop]: Abstraction has 1786 states and 2351 transitions. [2020-09-21 11:28:13,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:28:13,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2351 transitions. [2020-09-21 11:28:13,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-09-21 11:28:13,143 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:13,144 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:13,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:28:13,144 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:13,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:13,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1397446144, now seen corresponding path program 1 times [2020-09-21 11:28:13,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:13,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849756940] [2020-09-21 11:28:13,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:13,224 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:13,224 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:13,224 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:13,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:13,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-21 11:28:13,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:13,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:28:13,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:13,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:13,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 11:28:13,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:28:13,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:13,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:13,321 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:13,321 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:13,321 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:13,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:13,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:13,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:13,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:13,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:13,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:13,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:13,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:13,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:13,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:13,376 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:13,377 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:13,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:13,377 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:13,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:28:13,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:13,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:28:13,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:28:13,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:13,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:28:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:13,508 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:13,509 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:13,509 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:13,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:13,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-21 11:28:13,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:13,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:28:13,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:13,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:13,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:13,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-21 11:28:13,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:13,782 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 11:28:13,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849756940] [2020-09-21 11:28:13,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:28:13,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:28:13,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665532797] [2020-09-21 11:28:13,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:28:13,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:13,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:28:13,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:28:13,787 INFO L87 Difference]: Start difference. First operand 1786 states and 2351 transitions. Second operand 7 states. [2020-09-21 11:28:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:21,964 INFO L93 Difference]: Finished difference Result 3741 states and 5046 transitions. [2020-09-21 11:28:21,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:28:21,967 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 253 [2020-09-21 11:28:21,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:21,979 INFO L225 Difference]: With dead ends: 3741 [2020-09-21 11:28:21,979 INFO L226 Difference]: Without dead ends: 2104 [2020-09-21 11:28:21,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:28:21,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2020-09-21 11:28:22,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 2092. [2020-09-21 11:28:22,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2020-09-21 11:28:22,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2651 transitions. [2020-09-21 11:28:22,051 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2651 transitions. Word has length 253 [2020-09-21 11:28:22,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:22,052 INFO L479 AbstractCegarLoop]: Abstraction has 2092 states and 2651 transitions. [2020-09-21 11:28:22,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:28:22,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2651 transitions. [2020-09-21 11:28:22,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-09-21 11:28:22,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:22,059 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:22,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:28:22,059 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:22,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:22,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1784985051, now seen corresponding path program 1 times [2020-09-21 11:28:22,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:22,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693757894] [2020-09-21 11:28:22,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:22,182 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:22,182 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:22,182 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:22,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:22,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-09-21 11:28:22,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:22,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:28:22,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:22,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:22,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:28:22,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-09-21 11:28:22,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:22,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:22,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:22,267 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:22,267 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:22,267 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:22,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:22,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:22,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:22,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:22,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:22,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:22,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:22,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:22,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:22,312 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:22,313 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:22,313 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:22,313 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:22,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 11:28:22,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:22,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:28:22,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:22,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:22,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:22,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-21 11:28:22,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:22,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 11:28:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:22,375 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:22,376 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:22,376 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:22,376 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:22,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-21 11:28:22,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:22,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:28:22,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:22,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:22,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:22,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-21 11:28:22,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:22,628 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 149 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:28:22,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1693757894] [2020-09-21 11:28:22,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:28:22,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:28:22,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640819805] [2020-09-21 11:28:22,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:28:22,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:22,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:28:22,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:28:22,632 INFO L87 Difference]: Start difference. First operand 2092 states and 2651 transitions. Second operand 7 states. [2020-09-21 11:28:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:24,466 INFO L93 Difference]: Finished difference Result 4051 states and 5181 transitions. [2020-09-21 11:28:24,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:28:24,466 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 260 [2020-09-21 11:28:24,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:24,478 INFO L225 Difference]: With dead ends: 4051 [2020-09-21 11:28:24,478 INFO L226 Difference]: Without dead ends: 2108 [2020-09-21 11:28:24,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:28:24,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2020-09-21 11:28:24,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 1804. [2020-09-21 11:28:24,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1804 states. [2020-09-21 11:28:24,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2174 transitions. [2020-09-21 11:28:24,553 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2174 transitions. Word has length 260 [2020-09-21 11:28:24,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:24,554 INFO L479 AbstractCegarLoop]: Abstraction has 1804 states and 2174 transitions. [2020-09-21 11:28:24,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:28:24,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2174 transitions. [2020-09-21 11:28:24,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-09-21 11:28:24,561 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:24,562 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:24,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:28:24,562 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:24,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:24,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1994852443, now seen corresponding path program 1 times [2020-09-21 11:28:24,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:24,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497859531] [2020-09-21 11:28:24,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:24,680 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:24,680 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:24,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:24,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:24,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-09-21 11:28:24,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:24,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:28:24,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:24,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:24,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 269 [2020-09-21 11:28:24,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:28:24,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:24,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:24,788 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:24,789 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:24,789 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:24,789 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:24,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:24,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:24,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:24,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:24,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:24,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:24,809 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:24,809 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:24,809 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:24,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:24,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:28:24,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:24,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:24,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:24,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:24,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:24,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:24,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:24,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:28:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:24,891 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:24,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:24,892 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:24,892 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:24,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-09-21 11:28:24,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:24,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:28:24,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:24,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:24,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:24,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-21 11:28:24,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:25,044 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 83 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-09-21 11:28:25,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497859531] [2020-09-21 11:28:25,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:28:25,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:28:25,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042282225] [2020-09-21 11:28:25,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:28:25,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:25,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:28:25,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:28:25,057 INFO L87 Difference]: Start difference. First operand 1804 states and 2174 transitions. Second operand 5 states. [2020-09-21 11:28:26,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:26,391 INFO L93 Difference]: Finished difference Result 3753 states and 4624 transitions. [2020-09-21 11:28:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:28:26,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 304 [2020-09-21 11:28:26,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:26,393 INFO L225 Difference]: With dead ends: 3753 [2020-09-21 11:28:26,393 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:28:26,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:28:26,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:28:26,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:28:26,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:28:26,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:28:26,401 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 304 [2020-09-21 11:28:26,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:26,401 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:28:26,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:28:26,402 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:28:26,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:28:26,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:28:26,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:28:27,060 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2020-09-21 11:28:27,210 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2020-09-21 11:28:27,848 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 53 [2020-09-21 11:28:28,097 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 46 [2020-09-21 11:28:28,364 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 46 [2020-09-21 11:28:28,369 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:28:28,370 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-09-21 11:28:28,370 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:28:28,370 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-09-21 11:28:28,371 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,371 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,371 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,371 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,371 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,371 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,372 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-09-21 11:28:28,372 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-09-21 11:28:28,372 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-21 11:28:28,372 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-21 11:28:28,372 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-21 11:28:28,372 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-21 11:28:28,372 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-21 11:28:28,373 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-21 11:28:28,373 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-09-21 11:28:28,373 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-09-21 11:28:28,373 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-09-21 11:28:28,373 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,373 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,374 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,374 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,374 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,374 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-09-21 11:28:28,374 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-09-21 11:28:28,374 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-09-21 11:28:28,374 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-09-21 11:28:28,374 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-21 11:28:28,374 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-21 11:28:28,375 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-21 11:28:28,375 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-21 11:28:28,375 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-21 11:28:28,375 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-09-21 11:28:28,375 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-09-21 11:28:28,375 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-09-21 11:28:28,375 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-09-21 11:28:28,375 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 130) no Hoare annotation was computed. [2020-09-21 11:28:28,375 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-09-21 11:28:28,376 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,376 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,376 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,376 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,376 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,376 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-09-21 11:28:28,376 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-21 11:28:28,376 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-21 11:28:28,376 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-21 11:28:28,376 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-21 11:28:28,377 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-21 11:28:28,377 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-09-21 11:28:28,377 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-09-21 11:28:28,377 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-09-21 11:28:28,377 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-09-21 11:28:28,377 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,377 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,377 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,379 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,379 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,379 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-09-21 11:28:28,379 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-09-21 11:28:28,379 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-09-21 11:28:28,379 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-09-21 11:28:28,379 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-21 11:28:28,380 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-21 11:28:28,380 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-21 11:28:28,380 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-21 11:28:28,380 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-09-21 11:28:28,380 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-09-21 11:28:28,380 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-09-21 11:28:28,380 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-09-21 11:28:28,380 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-09-21 11:28:28,380 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,381 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,381 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,381 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,381 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,381 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-21 11:28:28,381 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-21 11:28:28,381 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-21 11:28:28,381 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-21 11:28:28,382 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-21 11:28:28,382 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-09-21 11:28:28,382 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-09-21 11:28:28,382 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-09-21 11:28:28,382 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-09-21 11:28:28,382 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,382 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,383 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,383 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,383 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,383 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,383 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,383 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-09-21 11:28:28,383 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-09-21 11:28:28,383 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-09-21 11:28:28,383 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-09-21 11:28:28,383 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-21 11:28:28,384 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-21 11:28:28,384 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-21 11:28:28,384 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-21 11:28:28,384 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-21 11:28:28,384 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-09-21 11:28:28,384 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-09-21 11:28:28,384 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-09-21 11:28:28,384 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-09-21 11:28:28,384 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,384 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,385 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,385 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,385 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-09-21 11:28:28,385 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,385 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,385 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-09-21 11:28:28,385 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-09-21 11:28:28,386 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-09-21 11:28:28,386 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-21 11:28:28,386 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-21 11:28:28,386 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-21 11:28:28,386 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-21 11:28:28,386 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-21 11:28:28,386 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-21 11:28:28,387 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-09-21 11:28:28,387 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-09-21 11:28:28,387 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-09-21 11:28:28,387 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-09-21 11:28:28,387 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,387 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,387 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,387 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,387 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,387 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,387 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-09-21 11:28:28,388 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-09-21 11:28:28,388 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-09-21 11:28:28,388 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-21 11:28:28,388 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-21 11:28:28,388 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-21 11:28:28,388 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-21 11:28:28,388 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-21 11:28:28,388 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-21 11:28:28,388 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-09-21 11:28:28,388 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-09-21 11:28:28,389 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse2 (not (<= |old(~a19~0)| 9))) (.cse1 (not (= |old(~a10~0)| 1))) (.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or (not (<= 9 |old(~a19~0)|)) .cse0 .cse1) (or .cse0 .cse2 (not (= 2 |old(~a10~0)|))) (or .cse0 .cse2 (= 8 |old(~a19~0)|)) (or (not (<= |old(~a10~0)| 0)) .cse0) (or .cse0 .cse2 (not (= 4 |old(~a10~0)|))) (or .cse0 (not (<= |old(~a1~0)| 23)) .cse2) (or (not (<= 331498 |old(~a1~0)|)) .cse1 .cse0 (not (= 14 ~a4~0)) (not (= ~a12~0 0))))) [2020-09-21 11:28:28,389 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-09-21 11:28:28,389 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-09-21 11:28:28,389 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-09-21 11:28:28,389 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,389 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,390 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,390 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,390 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,390 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,390 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-09-21 11:28:28,390 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-21 11:28:28,390 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-21 11:28:28,390 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-21 11:28:28,391 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-21 11:28:28,391 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-21 11:28:28,391 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-21 11:28:28,391 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-09-21 11:28:28,391 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-09-21 11:28:28,391 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-09-21 11:28:28,391 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-09-21 11:28:28,391 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-09-21 11:28:28,392 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-09-21 11:28:28,392 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,392 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,392 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,392 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,392 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,392 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,392 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-09-21 11:28:28,392 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-09-21 11:28:28,393 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-09-21 11:28:28,393 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-21 11:28:28,393 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-21 11:28:28,393 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-21 11:28:28,393 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-21 11:28:28,393 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-21 11:28:28,393 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-21 11:28:28,393 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-09-21 11:28:28,394 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-09-21 11:28:28,394 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-09-21 11:28:28,394 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,394 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,394 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,394 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,394 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,394 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:28,395 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-09-21 11:28:28,395 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-09-21 11:28:28,395 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-09-21 11:28:28,395 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-21 11:28:28,395 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-21 11:28:28,395 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-21 11:28:28,395 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-21 11:28:28,395 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-21 11:28:28,395 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-21 11:28:28,395 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-09-21 11:28:28,395 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-09-21 11:28:28,395 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-09-21 11:28:28,395 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:28:28,396 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-09-21 11:28:28,396 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:28:28,396 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:28:28,396 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (and (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23) (= ~a10~0 |old(~a10~0)|))) [2020-09-21 11:28:28,396 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-09-21 11:28:28,396 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (= ~a10~0 1)) (.cse1 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and (<= 331498 ~a1~0) .cse0 (= 14 ~a4~0) (= ~a12~0 0)) (<= ~a10~0 0) (and .cse1 (<= ~a1~0 23)) (not (<= |old(~a10~0)| 0)) (and (not (= ~a19~0 8)) .cse1) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 2) .cse1) (and .cse0 (<= 9 ~a19~0)) (and .cse1 (= ~a10~0 4)))) [2020-09-21 11:28:28,396 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-09-21 11:28:28,396 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-09-21 11:28:28,396 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (= ~a10~0 1)) (.cse1 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and (<= 331498 ~a1~0) .cse0 (= 14 ~a4~0) (= ~a12~0 0)) (<= ~a10~0 0) (and .cse1 (<= ~a1~0 23)) (not (<= |old(~a10~0)| 0)) (and (not (= ~a19~0 8)) .cse1) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 2) .cse1) (and .cse0 (<= 9 ~a19~0)) (and .cse1 (= ~a10~0 4)))) [2020-09-21 11:28:28,396 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-09-21 11:28:28,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:28:28 BoogieIcfgContainer [2020-09-21 11:28:28,427 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:28:28,430 INFO L168 Benchmark]: Toolchain (without parser) took 31797.70 ms. Allocated memory was 140.0 MB in the beginning and 531.1 MB in the end (delta: 391.1 MB). Free memory was 101.3 MB in the beginning and 464.1 MB in the end (delta: -362.7 MB). Peak memory consumption was 414.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:28,431 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-21 11:28:28,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 840.89 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 169.6 MB in the end (delta: -68.6 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:28,432 INFO L168 Benchmark]: Boogie Preprocessor took 122.03 ms. Allocated memory is still 204.5 MB. Free memory was 169.6 MB in the beginning and 165.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:28,433 INFO L168 Benchmark]: RCFGBuilder took 1430.48 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 164.6 MB in the beginning and 180.9 MB in the end (delta: -16.3 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:28,434 INFO L168 Benchmark]: TraceAbstraction took 29393.63 ms. Allocated memory was 238.6 MB in the beginning and 531.1 MB in the end (delta: 292.6 MB). Free memory was 180.9 MB in the beginning and 464.1 MB in the end (delta: -283.2 MB). Peak memory consumption was 395.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:28,439 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 840.89 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 169.6 MB in the end (delta: -68.6 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.03 ms. Allocated memory is still 204.5 MB. Free memory was 169.6 MB in the beginning and 165.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1430.48 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 164.6 MB in the beginning and 180.9 MB in the end (delta: -16.3 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29393.63 ms. Allocated memory was 238.6 MB in the beginning and 531.1 MB in the end (delta: 292.6 MB). Free memory was 180.9 MB in the beginning and 464.1 MB in the end (delta: -283.2 MB). Peak memory consumption was 395.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 130]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((((((!(23 <= \old(a1)) || (((331498 <= a1 && a10 == 1) && 14 == a4) && a12 == 0)) || a10 <= 0) || (a19 <= 9 && a1 <= 23)) || !(\old(a10) <= 0)) || (!(a19 == 8) && a19 <= 9)) || !(9 <= \old(a19))) || !(\old(a1) <= 23)) || !(\old(a19) <= 9)) || (a10 == 2 && a19 <= 9)) || (a10 == 1 && 9 <= a19)) || (a19 <= 9 && a10 == 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 27.2s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 22.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 3691 SDslu, 338 SDs, 0 SdLazy, 8462 SolverSat, 1186 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 17.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2092occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 1119 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 84 PreInvPairs, 114 NumberOfFragments, 368 HoareAnnotationTreeSize, 84 FomulaSimplifications, 33834 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1449 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1645 NumberOfCodeBlocks, 1645 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1636 ConstructedInterpolants, 0 QuantifiedInterpolants, 982734 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 765/857 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...