/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:01:54,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:01:54,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:01:54,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:01:54,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:01:54,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:01:54,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:01:54,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:01:54,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:01:54,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:01:54,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:01:54,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:01:54,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:01:54,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:01:54,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:01:54,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:01:54,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:01:54,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:01:54,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:01:54,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:01:54,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:01:54,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:01:54,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:01:54,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:01:54,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:01:54,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:01:54,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:01:54,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:01:54,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:01:54,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:01:54,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:01:54,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:01:54,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:01:54,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:01:54,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:01:54,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:01:54,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:01:54,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:01:54,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:01:54,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:01:54,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:01:54,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:01:54,474 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:01:54,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:01:54,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:01:54,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:01:54,476 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:01:54,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:01:54,477 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:01:54,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:01:54,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:01:54,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:01:54,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:01:54,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:01:54,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:01:54,478 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:01:54,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:01:54,479 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:01:54,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:01:54,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:01:54,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:01:54,479 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:01:54,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:01:54,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:01:54,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:01:54,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:01:54,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:01:54,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:01:54,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:01:54,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:01:54,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:01:54,481 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 09:01:54,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:01:54,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:01:54,946 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:01:54,948 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:01:54,949 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:01:54,950 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label08.c [2020-09-25 09:01:55,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04e768c32/9b5d5146267f45ea8ec4919a9db37231/FLAG69485be0f [2020-09-25 09:01:55,661 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:01:55,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label08.c [2020-09-25 09:01:55,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04e768c32/9b5d5146267f45ea8ec4919a9db37231/FLAG69485be0f [2020-09-25 09:01:55,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04e768c32/9b5d5146267f45ea8ec4919a9db37231 [2020-09-25 09:01:55,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:01:55,939 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:01:55,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:01:55,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:01:55,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:01:55,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:01:55" (1/1) ... [2020-09-25 09:01:55,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f80c2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:01:55, skipping insertion in model container [2020-09-25 09:01:55,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:01:55" (1/1) ... [2020-09-25 09:01:55,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:01:56,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:01:56,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:01:56,488 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:01:56,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:01:56,725 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:01:56,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:01:56 WrapperNode [2020-09-25 09:01:56,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:01:56,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:01:56,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:01:56,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:01:56,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:01:56" (1/1) ... [2020-09-25 09:01:56,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:01:56" (1/1) ... [2020-09-25 09:01:56,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:01:56" (1/1) ... [2020-09-25 09:01:56,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:01:56" (1/1) ... [2020-09-25 09:01:56,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:01:56" (1/1) ... [2020-09-25 09:01:56,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:01:56" (1/1) ... [2020-09-25 09:01:56,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:01:56" (1/1) ... [2020-09-25 09:01:56,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:01:56,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:01:56,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:01:56,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:01:56,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:01:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:01:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:01:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:01:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 09:01:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:01:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 09:01:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:01:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:01:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 09:01:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:01:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:01:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:01:58,308 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:01:58,308 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 09:01:58,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:01:58 BoogieIcfgContainer [2020-09-25 09:01:58,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:01:58,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:01:58,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:01:58,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:01:58,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:01:55" (1/3) ... [2020-09-25 09:01:58,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c445f89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:01:58, skipping insertion in model container [2020-09-25 09:01:58,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:01:56" (2/3) ... [2020-09-25 09:01:58,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c445f89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:01:58, skipping insertion in model container [2020-09-25 09:01:58,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:01:58" (3/3) ... [2020-09-25 09:01:58,334 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label08.c [2020-09-25 09:01:58,345 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:01:58,365 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:01:58,387 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:01:58,428 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:01:58,428 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:01:58,429 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:01:58,429 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:01:58,429 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:01:58,429 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:01:58,429 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:01:58,429 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:01:58,464 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 09:01:58,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 09:01:58,486 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:01:58,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:01:58,488 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:01:58,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:01:58,497 INFO L82 PathProgramCache]: Analyzing trace with hash 524055129, now seen corresponding path program 1 times [2020-09-25 09:01:58,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:01:58,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11241220] [2020-09-25 09:01:58,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:01:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:01:58,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:01:59,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:01:59,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:00,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:00,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:01,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:02,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:03,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:03,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:03,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:03,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-09-25 09:02:03,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 09:02:03,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 09:02:03,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:03,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:03,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:02:03,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 09:02:03,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 09:02:03,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:02:04,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:02:04,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:04,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:04,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:04,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:02:04,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:02:04,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 09:02:04,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:04,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:02:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:02:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 09:02:04,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:02:04,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:02:04,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11241220] [2020-09-25 09:02:04,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:02:04,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 09:02:04,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233673553] [2020-09-25 09:02:04,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 09:02:04,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:02:04,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 09:02:04,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 09:02:04,210 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 4 states. [2020-09-25 09:02:06,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:02:06,327 INFO L93 Difference]: Finished difference Result 1386 states and 1837 transitions. [2020-09-25 09:02:06,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:02:06,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 09:02:06,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:02:06,357 INFO L225 Difference]: With dead ends: 1386 [2020-09-25 09:02:06,357 INFO L226 Difference]: Without dead ends: 787 [2020-09-25 09:02:06,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:02:06,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-09-25 09:02:06,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 733. [2020-09-25 09:02:06,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-09-25 09:02:06,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 884 transitions. [2020-09-25 09:02:06,487 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 884 transitions. Word has length 148 [2020-09-25 09:02:06,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:02:06,488 INFO L479 AbstractCegarLoop]: Abstraction has 733 states and 884 transitions. [2020-09-25 09:02:06,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 09:02:06,488 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 884 transitions. [2020-09-25 09:02:06,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 09:02:06,499 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:02:06,499 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:02:06,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:02:06,500 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:02:06,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:02:06,501 INFO L82 PathProgramCache]: Analyzing trace with hash 2109946541, now seen corresponding path program 1 times [2020-09-25 09:02:06,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:02:06,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125001008] [2020-09-25 09:02:06,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:02:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:06,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:06,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:06,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:07,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:07,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:07,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:09,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:09,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:09,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:10,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:10,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:11,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:11,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:11,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:11,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-25 09:02:11,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 09:02:11,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 09:02:11,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:11,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:11,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:02:11,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 09:02:11,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-09-25 09:02:11,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:02:11,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:02:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:11,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:11,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:11,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:02:11,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:02:11,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 09:02:11,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:11,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:11,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:02:11,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:02:11,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 09:02:11,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:02:11,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:02:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:11,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:11,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:11,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:11,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 09:02:11,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:02:11,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 09:02:11,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:11,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:11,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:02:11,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:02:11,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 09:02:11,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:02:11,810 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 09:02:11,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125001008] [2020-09-25 09:02:11,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:02:11,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 09:02:11,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13320795] [2020-09-25 09:02:11,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:02:11,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:02:11,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:02:11,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:02:11,815 INFO L87 Difference]: Start difference. First operand 733 states and 884 transitions. Second operand 6 states. [2020-09-25 09:02:13,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:02:13,809 INFO L93 Difference]: Finished difference Result 1779 states and 2244 transitions. [2020-09-25 09:02:13,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 09:02:13,809 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-09-25 09:02:13,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:02:13,819 INFO L225 Difference]: With dead ends: 1779 [2020-09-25 09:02:13,819 INFO L226 Difference]: Without dead ends: 1068 [2020-09-25 09:02:13,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:02:13,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2020-09-25 09:02:13,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 880. [2020-09-25 09:02:13,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-09-25 09:02:13,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1092 transitions. [2020-09-25 09:02:13,869 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1092 transitions. Word has length 166 [2020-09-25 09:02:13,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:02:13,870 INFO L479 AbstractCegarLoop]: Abstraction has 880 states and 1092 transitions. [2020-09-25 09:02:13,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:02:13,870 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1092 transitions. [2020-09-25 09:02:13,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 09:02:13,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:02:13,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:02:13,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:02:13,877 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:02:13,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:02:13,878 INFO L82 PathProgramCache]: Analyzing trace with hash -2122100332, now seen corresponding path program 1 times [2020-09-25 09:02:13,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:02:13,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693281026] [2020-09-25 09:02:13,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:02:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:13,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:13,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:14,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:15,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:16,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:17,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:18,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:18,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 09:02:18,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:02:18,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 09:02:18,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:18,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:02:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 09:02:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-09-25 09:02:18,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:02:19,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:02:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:19,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:19,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:19,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:02:19,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:02:19,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 09:02:19,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:19,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:19,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:02:19,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:02:19,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:02:19,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:02:19,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:02:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:19,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:19,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:19,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 09:02:19,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:02:19,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 09:02:19,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:19,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:19,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:02:19,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:02:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:02:19,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:02:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:02:19,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693281026] [2020-09-25 09:02:19,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:02:19,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 09:02:19,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080619770] [2020-09-25 09:02:19,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:02:19,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:02:19,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:02:19,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:02:19,249 INFO L87 Difference]: Start difference. First operand 880 states and 1092 transitions. Second operand 5 states. [2020-09-25 09:02:21,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:02:21,276 INFO L93 Difference]: Finished difference Result 2230 states and 2889 transitions. [2020-09-25 09:02:21,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 09:02:21,277 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 182 [2020-09-25 09:02:21,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:02:21,288 INFO L225 Difference]: With dead ends: 2230 [2020-09-25 09:02:21,289 INFO L226 Difference]: Without dead ends: 1372 [2020-09-25 09:02:21,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:02:21,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2020-09-25 09:02:21,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1340. [2020-09-25 09:02:21,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1340 states. [2020-09-25 09:02:21,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1736 transitions. [2020-09-25 09:02:21,349 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1736 transitions. Word has length 182 [2020-09-25 09:02:21,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:02:21,350 INFO L479 AbstractCegarLoop]: Abstraction has 1340 states and 1736 transitions. [2020-09-25 09:02:21,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:02:21,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1736 transitions. [2020-09-25 09:02:21,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-09-25 09:02:21,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:02:21,370 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:02:21,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:02:21,371 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:02:21,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:02:21,371 INFO L82 PathProgramCache]: Analyzing trace with hash 201500591, now seen corresponding path program 1 times [2020-09-25 09:02:21,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:02:21,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386876345] [2020-09-25 09:02:21,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:02:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:21,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:21,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:22,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:22,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:22,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:24,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:26,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:26,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-09-25 09:02:26,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:02:26,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 09:02:26,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:26,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:02:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 09:02:26,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-09-25 09:02:26,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:02:26,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:02:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:26,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:26,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:26,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:02:26,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:02:26,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:02:26,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:26,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:02:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:02:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:02:26,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:02:26,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:02:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:26,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:26,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:26,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 09:02:26,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:02:26,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 09:02:26,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:26,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:26,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:02:26,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:02:26,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 09:02:26,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:02:26,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-25 09:02:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:26,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:26,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:26,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:26,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:26,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 09:02:26,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:02:26,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-25 09:02:26,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:26,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:26,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:02:26,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:02:26,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 09:02:26,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:02:27,021 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 72 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 09:02:27,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [386876345] [2020-09-25 09:02:27,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:02:27,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:02:27,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021625151] [2020-09-25 09:02:27,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:02:27,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:02:27,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:02:27,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:02:27,023 INFO L87 Difference]: Start difference. First operand 1340 states and 1736 transitions. Second operand 7 states. [2020-09-25 09:02:30,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:02:30,601 INFO L93 Difference]: Finished difference Result 4078 states and 5660 transitions. [2020-09-25 09:02:30,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:02:30,602 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 271 [2020-09-25 09:02:30,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:02:30,624 INFO L225 Difference]: With dead ends: 4078 [2020-09-25 09:02:30,625 INFO L226 Difference]: Without dead ends: 2760 [2020-09-25 09:02:30,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 09:02:30,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2020-09-25 09:02:30,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 2519. [2020-09-25 09:02:30,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2519 states. [2020-09-25 09:02:30,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3262 transitions. [2020-09-25 09:02:30,751 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3262 transitions. Word has length 271 [2020-09-25 09:02:30,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:02:30,752 INFO L479 AbstractCegarLoop]: Abstraction has 2519 states and 3262 transitions. [2020-09-25 09:02:30,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:02:30,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3262 transitions. [2020-09-25 09:02:30,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-09-25 09:02:30,767 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:02:30,768 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:02:30,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:02:30,768 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:02:30,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:02:30,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1915866502, now seen corresponding path program 1 times [2020-09-25 09:02:30,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:02:30,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606727393] [2020-09-25 09:02:30,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:02:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:30,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:30,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:31,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:32,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:33,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:33,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-09-25 09:02:33,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:02:33,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2209 [2020-09-25 09:02:33,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:33,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:33,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:02:33,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 09:02:33,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 221 [2020-09-25 09:02:33,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:02:33,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:02:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:33,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:33,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:33,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:02:33,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:02:33,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:02:33,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:33,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:33,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:02:33,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:02:33,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:02:33,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:02:33,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:02:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:33,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:33,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:33,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 09:02:33,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:02:33,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:02:33,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:33,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:33,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:02:33,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:02:33,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:02:33,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:02:33,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 09:02:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:33,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:33,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:33,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 09:02:33,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:02:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 09:02:33,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:33,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:02:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:02:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:02:33,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:02:33,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 09:02:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:33,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:33,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:33,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:33,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 09:02:33,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:02:33,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-25 09:02:33,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:33,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:33,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:02:33,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:02:33,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 09:02:33,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:02:33,573 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 80 proven. 73 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 09:02:33,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606727393] [2020-09-25 09:02:33,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:02:33,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 09:02:33,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063583547] [2020-09-25 09:02:33,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:02:33,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:02:33,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:02:33,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:02:33,576 INFO L87 Difference]: Start difference. First operand 2519 states and 3262 transitions. Second operand 6 states. [2020-09-25 09:02:35,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:02:35,907 INFO L93 Difference]: Finished difference Result 6422 states and 8647 transitions. [2020-09-25 09:02:35,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 09:02:35,910 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 289 [2020-09-25 09:02:35,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:02:35,932 INFO L225 Difference]: With dead ends: 6422 [2020-09-25 09:02:35,932 INFO L226 Difference]: Without dead ends: 3935 [2020-09-25 09:02:35,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:02:35,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3935 states. [2020-09-25 09:02:36,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3935 to 3414. [2020-09-25 09:02:36,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3414 states. [2020-09-25 09:02:36,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3414 states to 3414 states and 4351 transitions. [2020-09-25 09:02:36,044 INFO L78 Accepts]: Start accepts. Automaton has 3414 states and 4351 transitions. Word has length 289 [2020-09-25 09:02:36,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:02:36,044 INFO L479 AbstractCegarLoop]: Abstraction has 3414 states and 4351 transitions. [2020-09-25 09:02:36,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:02:36,044 INFO L276 IsEmpty]: Start isEmpty. Operand 3414 states and 4351 transitions. [2020-09-25 09:02:36,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-09-25 09:02:36,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:02:36,061 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:02:36,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:02:36,061 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:02:36,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:02:36,062 INFO L82 PathProgramCache]: Analyzing trace with hash 760350118, now seen corresponding path program 1 times [2020-09-25 09:02:36,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:02:36,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536268430] [2020-09-25 09:02:36,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:02:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:36,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:36,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:36,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:36,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:37,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:37,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:38,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:41,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:41,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 327 [2020-09-25 09:02:41,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:02:41,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 09:02:41,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:41,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:41,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:02:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-09-25 09:02:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 09:02:41,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:02:41,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:02:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:41,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:41,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:41,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:02:41,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:02:41,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 09:02:41,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:41,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:02:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:02:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:02:41,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:02:41,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 09:02:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:41,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:41,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:41,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 09:02:41,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:02:41,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 09:02:41,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:41,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:41,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:02:41,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:02:41,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 09:02:41,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:02:41,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-25 09:02:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:02:41,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:02:41,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:02:41,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 09:02:41,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:02:41,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 09:02:41,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:02:41,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:02:41,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:02:41,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:02:41,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 09:02:41,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:02:41,708 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 216 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 09:02:41,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536268430] [2020-09-25 09:02:41,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:02:41,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:02:41,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558429980] [2020-09-25 09:02:41,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:02:41,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:02:41,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:02:41,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:02:41,711 INFO L87 Difference]: Start difference. First operand 3414 states and 4351 transitions. Second operand 7 states. [2020-09-25 09:02:43,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:02:43,533 INFO L93 Difference]: Finished difference Result 6069 states and 7728 transitions. [2020-09-25 09:02:43,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:02:43,533 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 314 [2020-09-25 09:02:43,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:02:43,534 INFO L225 Difference]: With dead ends: 6069 [2020-09-25 09:02:43,534 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 09:02:43,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:02:43,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 09:02:43,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 09:02:43,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 09:02:43,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 09:02:43,551 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 314 [2020-09-25 09:02:43,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:02:43,551 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 09:02:43,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:02:43,552 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 09:02:43,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 09:02:43,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 09:02:43,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.