/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 SequenceOfStatements --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label58.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 11:11:02,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 11:11:02,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 11:11:02,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 11:11:02,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 11:11:02,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 11:11:02,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 11:11:02,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 11:11:02,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 11:11:02,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 11:11:02,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 11:11:02,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 11:11:02,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 11:11:02,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 11:11:02,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 11:11:02,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 11:11:02,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 11:11:02,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 11:11:02,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 11:11:02,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 11:11:02,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 11:11:02,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 11:11:02,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 11:11:02,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 11:11:02,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 11:11:02,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 11:11:02,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 11:11:02,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 11:11:02,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 11:11:02,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 11:11:02,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 11:11:02,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 11:11:02,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 11:11:02,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 11:11:02,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 11:11:02,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 11:11:02,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 11:11:02,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 11:11:02,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 11:11:02,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 11:11:02,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 11:11:02,077 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 [2020-10-12 11:11:02,101 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 11:11:02,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 11:11:02,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 11:11:02,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 11:11:02,103 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 11:11:02,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 11:11:02,103 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 11:11:02,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 11:11:02,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 11:11:02,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 11:11:02,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 11:11:02,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 11:11:02,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 11:11:02,105 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 11:11:02,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 11:11:02,105 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 11:11:02,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 11:11:02,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 11:11:02,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 11:11:02,106 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 11:11:02,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 11:11:02,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:11:02,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 11:11:02,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 11:11:02,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 11:11:02,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 11:11:02,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 11:11:02,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 11:11:02,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 11:11:02,108 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 -> SequenceOfStatements 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 11:11:02,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 11:11:02,427 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 11:11:02,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 11:11:02,432 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 11:11:02,432 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 11:11:02,433 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label58.c [2020-10-12 11:11:02,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52d2a4421/00e5b97f2805469a9e9a8a18b3b95b4d/FLAG6161f8e16 [2020-10-12 11:11:03,165 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 11:11:03,166 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label58.c [2020-10-12 11:11:03,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52d2a4421/00e5b97f2805469a9e9a8a18b3b95b4d/FLAG6161f8e16 [2020-10-12 11:11:03,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52d2a4421/00e5b97f2805469a9e9a8a18b3b95b4d [2020-10-12 11:11:03,440 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 11:11:03,442 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 11:11:03,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 11:11:03,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 11:11:03,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 11:11:03,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:11:03" (1/1) ... [2020-10-12 11:11:03,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337988d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:03, skipping insertion in model container [2020-10-12 11:11:03,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:11:03" (1/1) ... [2020-10-12 11:11:03,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 11:11:03,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 11:11:04,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:11:04,017 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 11:11:04,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:11:04,194 INFO L208 MainTranslator]: Completed translation [2020-10-12 11:11:04,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:04 WrapperNode [2020-10-12 11:11:04,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 11:11:04,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 11:11:04,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 11:11:04,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 11:11:04,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:04" (1/1) ... [2020-10-12 11:11:04,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:04" (1/1) ... [2020-10-12 11:11:04,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:04" (1/1) ... [2020-10-12 11:11:04,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:04" (1/1) ... [2020-10-12 11:11:04,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:04" (1/1) ... [2020-10-12 11:11:04,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:04" (1/1) ... [2020-10-12 11:11:04,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:04" (1/1) ... [2020-10-12 11:11:04,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 11:11:04,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 11:11:04,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 11:11:04,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 11:11:04,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:04" (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 [2020-10-12 11:11:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 11:11:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 11:11:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 11:11:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 11:11:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 11:11:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 11:11:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 11:11:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 11:11:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 11:11:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 11:11:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 11:11:05,455 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 11:11:05,456 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 11:11:05,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:11:05 BoogieIcfgContainer [2020-10-12 11:11:05,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 11:11:05,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 11:11:05,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 11:11:05,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 11:11:05,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:11:03" (1/3) ... [2020-10-12 11:11:05,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f30e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:11:05, skipping insertion in model container [2020-10-12 11:11:05,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:11:04" (2/3) ... [2020-10-12 11:11:05,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f30e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:11:05, skipping insertion in model container [2020-10-12 11:11:05,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:11:05" (3/3) ... [2020-10-12 11:11:05,472 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label58.c [2020-10-12 11:11:05,484 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 11:11:05,493 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 11:11:05,509 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 11:11:05,537 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 11:11:05,537 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 11:11:05,537 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 11:11:05,538 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 11:11:05,538 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 11:11:05,538 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 11:11:05,538 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 11:11:05,538 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 11:11:05,567 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-12 11:11:05,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-12 11:11:05,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:05,588 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] [2020-10-12 11:11:05,589 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:05,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:05,596 INFO L82 PathProgramCache]: Analyzing trace with hash 575241111, now seen corresponding path program 1 times [2020-10-12 11:11:05,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:05,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406611697] [2020-10-12 11:11:05,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:05,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:06,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:07,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:07,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 11:11:07,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:07,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1619 [2020-10-12 11:11:07,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:07,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 11:11:07,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:11:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 11:11:07,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:11:08,273 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-12 11:11:08,425 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2020-10-12 11:11:08,562 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 37 [2020-10-12 11:11:08,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:08,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:08,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:08,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:08,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:08,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 11:11:08,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:08,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:08,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:08,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:11:08,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:11:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:11:09,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406611697] [2020-10-12 11:11:09,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 11:11:09,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 11:11:09,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909526478] [2020-10-12 11:11:09,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:11:09,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:09,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:11:09,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:11:09,213 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-12 11:11:09,786 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 11:11:10,124 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-10-12 11:11:10,426 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 108 [2020-10-12 11:11:10,849 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 105 [2020-10-12 11:11:11,376 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 102 [2020-10-12 11:11:11,732 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 97 [2020-10-12 11:11:12,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:12,535 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-12 11:11:12,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:11:12,539 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 105 [2020-10-12 11:11:12,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:12,553 INFO L225 Difference]: With dead ends: 474 [2020-10-12 11:11:12,554 INFO L226 Difference]: Without dead ends: 205 [2020-10-12 11:11:12,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:11:12,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-12 11:11:12,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-12 11:11:12,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-12 11:11:12,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-12 11:11:12,622 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 105 [2020-10-12 11:11:12,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:12,623 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-12 11:11:12,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:11:12,623 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-12 11:11:12,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-12 11:11:12,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:12,628 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 11:11:12,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 11:11:12,629 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:12,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:12,629 INFO L82 PathProgramCache]: Analyzing trace with hash -702045412, now seen corresponding path program 1 times [2020-10-12 11:11:12,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:12,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875769252] [2020-10-12 11:11:12,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:12,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:12,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:13,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:13,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:13,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 11:11:13,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:11:13,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1239 [2020-10-12 11:11:13,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:13,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:11:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:11:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:11:13,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:14,157 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2020-10-12 11:11:14,282 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 31 [2020-10-12 11:11:14,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:14,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:14,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:14,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:14,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:14,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:11:14,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:14,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:14,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:14,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:14,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:14,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:14,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:14,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:14,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:11:14,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:14,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:11:14,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:14,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:14,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:14,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:11:14,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:14,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:11:14,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875769252] [2020-10-12 11:11:14,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:14,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:11:14,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456101921] [2020-10-12 11:11:14,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:11:14,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:14,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:11:14,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:11:14,692 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-12 11:11:15,440 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 11:11:16,113 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-12 11:11:16,394 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-12 11:11:16,571 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-12 11:11:16,829 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-10-12 11:11:17,027 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2020-10-12 11:11:17,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:17,630 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-12 11:11:17,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:11:17,630 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 113 [2020-10-12 11:11:17,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:17,634 INFO L225 Difference]: With dead ends: 433 [2020-10-12 11:11:17,634 INFO L226 Difference]: Without dead ends: 294 [2020-10-12 11:11:17,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-12 11:11:17,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-12 11:11:17,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-12 11:11:17,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-12 11:11:17,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-12 11:11:17,678 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 113 [2020-10-12 11:11:17,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:17,679 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-12 11:11:17,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:11:17,679 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-12 11:11:17,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-12 11:11:17,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:17,683 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 11:11:17,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 11:11:17,684 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:17,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:17,684 INFO L82 PathProgramCache]: Analyzing trace with hash 2134897886, now seen corresponding path program 1 times [2020-10-12 11:11:17,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:17,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328577085] [2020-10-12 11:11:17,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:17,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:17,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:18,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:18,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:18,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 11:11:18,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:11:18,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 954 [2020-10-12 11:11:18,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:18,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:11:18,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:11:18,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-12 11:11:18,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:18,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:18,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:18,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:18,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:18,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:18,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:11:18,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:18,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:18,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:18,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:11:18,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:18,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:18,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:18,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:18,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:18,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:11:18,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:18,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 11:11:18,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:11:18,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:19,006 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 11:11:19,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328577085] [2020-10-12 11:11:19,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:19,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:11:19,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381811941] [2020-10-12 11:11:19,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:11:19,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:19,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:11:19,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:11:19,010 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 6 states. [2020-10-12 11:11:20,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:20,175 INFO L93 Difference]: Finished difference Result 633 states and 863 transitions. [2020-10-12 11:11:20,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:11:20,176 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2020-10-12 11:11:20,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:20,180 INFO L225 Difference]: With dead ends: 633 [2020-10-12 11:11:20,181 INFO L226 Difference]: Without dead ends: 423 [2020-10-12 11:11:20,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:11:20,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-10-12 11:11:20,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-10-12 11:11:20,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-10-12 11:11:20,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 542 transitions. [2020-10-12 11:11:20,212 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 542 transitions. Word has length 116 [2020-10-12 11:11:20,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:20,213 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 542 transitions. [2020-10-12 11:11:20,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:11:20,213 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 542 transitions. [2020-10-12 11:11:20,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-12 11:11:20,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:20,216 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-10-12 11:11:20,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 11:11:20,217 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:20,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:20,217 INFO L82 PathProgramCache]: Analyzing trace with hash -672258637, now seen corresponding path program 1 times [2020-10-12 11:11:20,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:20,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263004318] [2020-10-12 11:11:20,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:20,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:20,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:20,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:23,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:24,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:24,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-12 11:11:24,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:11:24,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4609 [2020-10-12 11:11:24,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:24,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:11:24,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-12 11:11:24,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 11:11:24,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:11:25,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:25,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:25,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:25,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:25,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:25,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:11:25,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:25,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:25,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:25,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:25,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:25,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:25,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:25,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:25,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:11:25,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:25,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:11:25,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:25,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:25,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:11:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:25,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:25,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:25,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:11:25,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:25,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:11:25,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:25,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:25,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:25,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 11:11:25,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:25,616 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 11:11:25,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263004318] [2020-10-12 11:11:25,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:25,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:11:25,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290417824] [2020-10-12 11:11:25,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:11:25,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:25,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:11:25,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:11:25,619 INFO L87 Difference]: Start difference. First operand 417 states and 542 transitions. Second operand 13 states. [2020-10-12 11:11:26,280 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-10-12 11:11:26,505 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2020-10-12 11:11:26,719 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2020-10-12 11:11:27,196 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 86 [2020-10-12 11:11:27,607 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2020-10-12 11:11:28,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:28,026 INFO L93 Difference]: Finished difference Result 847 states and 1166 transitions. [2020-10-12 11:11:28,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:11:28,027 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-10-12 11:11:28,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:28,031 INFO L225 Difference]: With dead ends: 847 [2020-10-12 11:11:28,031 INFO L226 Difference]: Without dead ends: 496 [2020-10-12 11:11:28,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:11:28,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-12 11:11:28,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 490. [2020-10-12 11:11:28,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-10-12 11:11:28,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 623 transitions. [2020-10-12 11:11:28,060 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 623 transitions. Word has length 125 [2020-10-12 11:11:28,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:28,061 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 623 transitions. [2020-10-12 11:11:28,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:11:28,061 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 623 transitions. [2020-10-12 11:11:28,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-12 11:11:28,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:28,065 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2020-10-12 11:11:28,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 11:11:28,065 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:28,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:28,066 INFO L82 PathProgramCache]: Analyzing trace with hash -41287813, now seen corresponding path program 1 times [2020-10-12 11:11:28,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:28,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020439359] [2020-10-12 11:11:28,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:28,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:28,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:28,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:28,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:29,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:30,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:30,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-12 11:11:30,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:11:30,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2183 [2020-10-12 11:11:30,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:30,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:11:30,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:11:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 11:11:30,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:30,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:30,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:30,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:30,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:30,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:30,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:11:30,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:30,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:30,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:30,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:11:30,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:30,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:30,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:30,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:30,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:30,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:11:30,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:30,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 11:11:30,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:30,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:30,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:30,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:11:30,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:30,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:11:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:30,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:30,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:30,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:11:30,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:30,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 11:11:30,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:30,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:30,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:30,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:11:30,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:30,493 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:11:30,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020439359] [2020-10-12 11:11:30,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:30,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:11:30,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245441635] [2020-10-12 11:11:30,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:11:30,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:30,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:11:30,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:11:30,495 INFO L87 Difference]: Start difference. First operand 490 states and 623 transitions. Second operand 7 states. [2020-10-12 11:11:31,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:31,893 INFO L93 Difference]: Finished difference Result 1218 states and 1634 transitions. [2020-10-12 11:11:31,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 11:11:31,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2020-10-12 11:11:31,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:31,900 INFO L225 Difference]: With dead ends: 1218 [2020-10-12 11:11:31,900 INFO L226 Difference]: Without dead ends: 794 [2020-10-12 11:11:31,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:11:31,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2020-10-12 11:11:31,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 778. [2020-10-12 11:11:31,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2020-10-12 11:11:31,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1000 transitions. [2020-10-12 11:11:31,960 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1000 transitions. Word has length 136 [2020-10-12 11:11:31,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:31,960 INFO L479 AbstractCegarLoop]: Abstraction has 778 states and 1000 transitions. [2020-10-12 11:11:31,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:11:31,960 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1000 transitions. [2020-10-12 11:11:31,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-12 11:11:31,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:31,968 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:11:31,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 11:11:31,969 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:31,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:31,970 INFO L82 PathProgramCache]: Analyzing trace with hash -861278237, now seen corresponding path program 1 times [2020-10-12 11:11:31,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:31,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891357913] [2020-10-12 11:11:31,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:32,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:32,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:32,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:34,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:35,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:37,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:37,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-12 11:11:37,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:11:37,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-12 11:11:37,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:11:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-12 11:11:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 11:11:37,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:11:37,547 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-10-12 11:11:37,797 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2020-10-12 11:11:38,109 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 53 [2020-10-12 11:11:38,404 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 50 [2020-10-12 11:11:38,728 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 46 [2020-10-12 11:11:38,938 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 42 [2020-10-12 11:11:39,107 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 36 [2020-10-12 11:11:39,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:39,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:39,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:39,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:39,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:39,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:11:39,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:39,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:39,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:39,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:39,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:39,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:39,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:11:39,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:39,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:11:39,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:39,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:39,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:39,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:39,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:11:39,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:11:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:39,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:39,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:39,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:11:39,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:39,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 11:11:39,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 11:11:39,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:39,398 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:11:39,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891357913] [2020-10-12 11:11:39,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:39,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:11:39,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230777258] [2020-10-12 11:11:39,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:11:39,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:39,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:11:39,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:11:39,400 INFO L87 Difference]: Start difference. First operand 778 states and 1000 transitions. Second operand 13 states. [2020-10-12 11:11:39,845 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-12 11:11:40,037 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 11:11:40,558 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-12 11:11:41,005 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-12 11:11:41,323 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-12 11:11:41,784 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2020-10-12 11:11:42,227 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2020-10-12 11:11:42,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:42,497 INFO L93 Difference]: Finished difference Result 1554 states and 2045 transitions. [2020-10-12 11:11:42,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:11:42,499 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 149 [2020-10-12 11:11:42,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:42,503 INFO L225 Difference]: With dead ends: 1554 [2020-10-12 11:11:42,504 INFO L226 Difference]: Without dead ends: 842 [2020-10-12 11:11:42,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:11:42,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2020-10-12 11:11:42,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 842. [2020-10-12 11:11:42,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 842 states. [2020-10-12 11:11:42,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1075 transitions. [2020-10-12 11:11:42,534 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1075 transitions. Word has length 149 [2020-10-12 11:11:42,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:42,534 INFO L479 AbstractCegarLoop]: Abstraction has 842 states and 1075 transitions. [2020-10-12 11:11:42,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:11:42,535 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1075 transitions. [2020-10-12 11:11:42,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 11:11:42,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:42,538 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 11:11:42,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 11:11:42,539 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:42,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:42,539 INFO L82 PathProgramCache]: Analyzing trace with hash 558809180, now seen corresponding path program 1 times [2020-10-12 11:11:42,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:42,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621738516] [2020-10-12 11:11:42,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:42,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:42,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:42,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:43,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:43,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:45,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:45,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-12 11:11:45,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:11:45,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2642 [2020-10-12 11:11:45,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:45,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:11:45,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:11:45,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:11:45,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:11:45,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:45,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:45,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:45,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:45,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:45,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:11:45,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:45,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:45,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:11:45,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:11:45,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:45,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:45,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:45,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:45,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:11:45,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:11:45,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 11:11:45,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:45,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:45,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:45,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:11:45,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:45,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:11:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:45,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:45,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:45,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:11:45,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:45,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 11:11:45,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:45,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:45,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:45,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:11:45,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:45,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 11:11:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:45,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:45,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:45,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:11:45,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:45,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:11:45,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:45,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:11:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:45,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:45,577 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-12 11:11:45,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621738516] [2020-10-12 11:11:45,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:45,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 11:11:45,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646117242] [2020-10-12 11:11:45,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:11:45,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:45,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:11:45,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:11:45,582 INFO L87 Difference]: Start difference. First operand 842 states and 1075 transitions. Second operand 8 states. [2020-10-12 11:11:46,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:46,989 INFO L93 Difference]: Finished difference Result 1632 states and 2102 transitions. [2020-10-12 11:11:46,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 11:11:46,990 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 151 [2020-10-12 11:11:46,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:46,995 INFO L225 Difference]: With dead ends: 1632 [2020-10-12 11:11:46,995 INFO L226 Difference]: Without dead ends: 856 [2020-10-12 11:11:46,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-12 11:11:46,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2020-10-12 11:11:47,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 846. [2020-10-12 11:11:47,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 846 states. [2020-10-12 11:11:47,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1073 transitions. [2020-10-12 11:11:47,027 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1073 transitions. Word has length 151 [2020-10-12 11:11:47,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:47,028 INFO L479 AbstractCegarLoop]: Abstraction has 846 states and 1073 transitions. [2020-10-12 11:11:47,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:11:47,028 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1073 transitions. [2020-10-12 11:11:47,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-12 11:11:47,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:47,031 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:11:47,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 11:11:47,032 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:47,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:47,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1175370351, now seen corresponding path program 1 times [2020-10-12 11:11:47,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:47,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549097072] [2020-10-12 11:11:47,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:47,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:47,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:47,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:47,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:48,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:50,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:50,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-12 11:11:50,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:11:50,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3383 [2020-10-12 11:11:50,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:11:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 11:11:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:11:50,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:50,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:50,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:50,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:50,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:50,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:50,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:11:50,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:50,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:50,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:50,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:50,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:11:50,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:50,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:50,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:50,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:11:50,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:50,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:11:50,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:50,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:50,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:11:50,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:11:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:50,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:50,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:50,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:11:50,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:50,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 11:11:50,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:50,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:50,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:50,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:11:50,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:51,036 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:11:51,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549097072] [2020-10-12 11:11:51,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:51,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:11:51,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293411088] [2020-10-12 11:11:51,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:11:51,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:51,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:11:51,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:11:51,039 INFO L87 Difference]: Start difference. First operand 846 states and 1073 transitions. Second operand 13 states. [2020-10-12 11:11:52,031 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-12 11:11:52,429 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-12 11:11:52,683 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-12 11:11:52,913 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-12 11:11:53,353 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:11:53,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:11:53,638 INFO L93 Difference]: Finished difference Result 1690 states and 2188 transitions. [2020-10-12 11:11:53,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 11:11:53,639 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 155 [2020-10-12 11:11:53,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:11:53,643 INFO L225 Difference]: With dead ends: 1690 [2020-10-12 11:11:53,644 INFO L226 Difference]: Without dead ends: 910 [2020-10-12 11:11:53,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:11:53,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2020-10-12 11:11:53,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 904. [2020-10-12 11:11:53,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2020-10-12 11:11:53,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1141 transitions. [2020-10-12 11:11:53,673 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1141 transitions. Word has length 155 [2020-10-12 11:11:53,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:11:53,674 INFO L479 AbstractCegarLoop]: Abstraction has 904 states and 1141 transitions. [2020-10-12 11:11:53,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:11:53,674 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1141 transitions. [2020-10-12 11:11:53,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-12 11:11:53,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:11:53,678 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:11:53,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 11:11:53,678 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:11:53,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:11:53,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1335278453, now seen corresponding path program 1 times [2020-10-12 11:11:53,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:11:53,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875101021] [2020-10-12 11:11:53,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:11:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:53,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:53,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:53,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:54,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:54,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:55,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:55,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-12 11:11:55,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:11:55,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1953 [2020-10-12 11:11:55,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:55,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:11:55,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:11:55,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 11:11:55,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:56,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:11:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:56,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:56,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:56,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:11:56,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:56,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:11:56,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:11:56,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:56,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:11:56,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:56,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:11:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:56,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:56,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:56,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:11:56,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:56,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:11:56,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:56,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:11:56,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:11:56,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:11:56,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:56,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:11:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:11:56,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:11:56,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:11:56,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:11:56,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:11:56,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 11:11:56,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:11:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:11:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:11:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:11:56,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:11:56,897 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:11:56,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875101021] [2020-10-12 11:11:56,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:11:56,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:11:56,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57024348] [2020-10-12 11:11:56,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:11:56,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:11:56,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:11:56,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:11:56,900 INFO L87 Difference]: Start difference. First operand 904 states and 1141 transitions. Second operand 20 states. [2020-10-12 11:11:57,565 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-12 11:11:57,856 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-12 11:11:58,163 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 11:11:58,478 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 11:11:58,728 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 11:11:59,025 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-10-12 11:11:59,249 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-12 11:11:59,603 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-12 11:11:59,828 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-12 11:12:00,165 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-12 11:12:00,372 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-12 11:12:00,606 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:12:00,910 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-10-12 11:12:01,087 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-10-12 11:12:02,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:12:02,276 INFO L93 Difference]: Finished difference Result 1849 states and 2386 transitions. [2020-10-12 11:12:02,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 11:12:02,279 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 163 [2020-10-12 11:12:02,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:12:02,284 INFO L225 Difference]: With dead ends: 1849 [2020-10-12 11:12:02,284 INFO L226 Difference]: Without dead ends: 1011 [2020-10-12 11:12:02,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=557, Invalid=1335, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 11:12:02,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2020-10-12 11:12:02,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 975. [2020-10-12 11:12:02,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 975 states. [2020-10-12 11:12:02,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1225 transitions. [2020-10-12 11:12:02,319 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1225 transitions. Word has length 163 [2020-10-12 11:12:02,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:12:02,319 INFO L479 AbstractCegarLoop]: Abstraction has 975 states and 1225 transitions. [2020-10-12 11:12:02,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:12:02,319 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1225 transitions. [2020-10-12 11:12:02,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-12 11:12:02,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:12:02,323 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:12:02,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 11:12:02,324 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:12:02,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:12:02,324 INFO L82 PathProgramCache]: Analyzing trace with hash 746959480, now seen corresponding path program 1 times [2020-10-12 11:12:02,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:12:02,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1850464948] [2020-10-12 11:12:02,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:12:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:02,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:02,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:02,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:04,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:06,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:06,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:07,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:07,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 11:12:07,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 11:12:07,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 11:12:07,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:07,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:12:07,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:12:07,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:12:07,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:07,695 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-12 11:12:07,821 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 43 [2020-10-12 11:12:08,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:12:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:08,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:08,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:08,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:12:08,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:08,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:12:08,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:08,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:08,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:08,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:08,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:08,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:12:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:08,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:08,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:08,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:12:08,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:08,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:12:08,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:08,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:08,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:08,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:08,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:08,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:12:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:08,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:08,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:08,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:12:08,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:08,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:12:08,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:08,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:08,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 11:12:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:08,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:08,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:08,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 11:12:08,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:08,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:12:08,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:08,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:08,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:08,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 11:12:08,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:08,434 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-12 11:12:08,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1850464948] [2020-10-12 11:12:08,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:12:08,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:12:08,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286560940] [2020-10-12 11:12:08,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:12:08,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:12:08,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:12:08,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:12:08,436 INFO L87 Difference]: Start difference. First operand 975 states and 1225 transitions. Second operand 13 states. [2020-10-12 11:12:08,716 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 11:12:08,941 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-12 11:12:10,263 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-12 11:12:10,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:12:10,651 INFO L93 Difference]: Finished difference Result 2066 states and 2644 transitions. [2020-10-12 11:12:10,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:12:10,651 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 165 [2020-10-12 11:12:10,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:12:10,656 INFO L225 Difference]: With dead ends: 2066 [2020-10-12 11:12:10,656 INFO L226 Difference]: Without dead ends: 1157 [2020-10-12 11:12:10,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:12:10,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2020-10-12 11:12:10,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1050. [2020-10-12 11:12:10,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2020-10-12 11:12:10,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1309 transitions. [2020-10-12 11:12:10,690 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1309 transitions. Word has length 165 [2020-10-12 11:12:10,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:12:10,691 INFO L479 AbstractCegarLoop]: Abstraction has 1050 states and 1309 transitions. [2020-10-12 11:12:10,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:12:10,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1309 transitions. [2020-10-12 11:12:10,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-12 11:12:10,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:12:10,695 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:12:10,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 11:12:10,696 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:12:10,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:12:10,696 INFO L82 PathProgramCache]: Analyzing trace with hash -270524537, now seen corresponding path program 1 times [2020-10-12 11:12:10,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:12:10,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [452335415] [2020-10-12 11:12:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:12:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:10,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:10,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:11,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:12,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:13,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:13,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:13,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 11:12:13,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:12:13,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3034 [2020-10-12 11:12:13,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:12:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:12:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 11:12:13,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:14,287 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 38 [2020-10-12 11:12:14,418 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 36 [2020-10-12 11:12:14,549 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 34 [2020-10-12 11:12:14,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:12:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:14,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:14,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:14,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:12:14,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:14,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:12:14,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:14,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:14,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:12:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:14,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:14,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:14,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:12:14,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:14,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:12:14,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:14,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:14,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:14,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:14,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:14,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:12:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:14,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:14,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:14,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:12:14,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:14,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 11:12:14,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:14,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:14,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:14,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:12:14,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:15,172 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:12:15,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [452335415] [2020-10-12 11:12:15,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:12:15,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:12:15,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376119471] [2020-10-12 11:12:15,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:12:15,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:12:15,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:12:15,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:12:15,184 INFO L87 Difference]: Start difference. First operand 1050 states and 1309 transitions. Second operand 13 states. [2020-10-12 11:12:16,007 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-12 11:12:16,271 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2020-10-12 11:12:16,561 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2020-10-12 11:12:17,121 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-12 11:12:17,465 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2020-10-12 11:12:17,840 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2020-10-12 11:12:18,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:12:18,271 INFO L93 Difference]: Finished difference Result 2102 states and 2672 transitions. [2020-10-12 11:12:18,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:12:18,274 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 167 [2020-10-12 11:12:18,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:12:18,279 INFO L225 Difference]: With dead ends: 2102 [2020-10-12 11:12:18,279 INFO L226 Difference]: Without dead ends: 1118 [2020-10-12 11:12:18,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-12 11:12:18,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2020-10-12 11:12:18,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1110. [2020-10-12 11:12:18,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1110 states. [2020-10-12 11:12:18,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1377 transitions. [2020-10-12 11:12:18,314 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1377 transitions. Word has length 167 [2020-10-12 11:12:18,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:12:18,315 INFO L479 AbstractCegarLoop]: Abstraction has 1110 states and 1377 transitions. [2020-10-12 11:12:18,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:12:18,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1377 transitions. [2020-10-12 11:12:18,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-12 11:12:18,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:12:18,319 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:12:18,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 11:12:18,319 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:12:18,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:12:18,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1812337486, now seen corresponding path program 1 times [2020-10-12 11:12:18,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:12:18,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958761061] [2020-10-12 11:12:18,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:12:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:18,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:18,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:18,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:18,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:19,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:22,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:22,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:23,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:23,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-12 11:12:23,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:12:23,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 11:12:23,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:23,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:12:23,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 11:12:23,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 11:12:23,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:23,957 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 42 [2020-10-12 11:12:24,087 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 35 [2020-10-12 11:12:24,259 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 40 [2020-10-12 11:12:24,446 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 41 [2020-10-12 11:12:24,633 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2020-10-12 11:12:24,820 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 40 [2020-10-12 11:12:25,000 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2020-10-12 11:12:25,178 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 37 [2020-10-12 11:12:25,346 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 37 [2020-10-12 11:12:25,509 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 35 [2020-10-12 11:12:25,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:12:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:25,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:25,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:25,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:12:25,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:25,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:12:25,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:25,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:25,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:25,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:25,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:25,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:12:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:25,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:25,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:25,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:12:25,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:25,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:12:25,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:25,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:25,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:12:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:25,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:25,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:25,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:12:25,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:25,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 11:12:25,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:25,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:25,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:25,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:12:25,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:25,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 11:12:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:25,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:25,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:25,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:12:25,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:25,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:12:25,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:25,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:12:25,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:12:25,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 11:12:25,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 77 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-12 11:12:26,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958761061] [2020-10-12 11:12:26,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:12:26,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:12:26,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230917467] [2020-10-12 11:12:26,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:12:26,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:12:26,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:12:26,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:12:26,008 INFO L87 Difference]: Start difference. First operand 1110 states and 1377 transitions. Second operand 20 states. [2020-10-12 11:12:26,946 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-10-12 11:12:27,179 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2020-10-12 11:12:27,508 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2020-10-12 11:12:27,768 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2020-10-12 11:12:27,970 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2020-10-12 11:12:28,241 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2020-10-12 11:12:28,550 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2020-10-12 11:12:28,842 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2020-10-12 11:12:29,378 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 93 [2020-10-12 11:12:29,851 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2020-10-12 11:12:30,258 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90 [2020-10-12 11:12:30,604 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90 [2020-10-12 11:12:30,911 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 89 [2020-10-12 11:12:31,181 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2020-10-12 11:12:31,592 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2020-10-12 11:12:31,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:12:31,904 INFO L93 Difference]: Finished difference Result 2239 states and 2834 transitions. [2020-10-12 11:12:31,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 11:12:31,906 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 180 [2020-10-12 11:12:31,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:12:31,911 INFO L225 Difference]: With dead ends: 2239 [2020-10-12 11:12:31,911 INFO L226 Difference]: Without dead ends: 1195 [2020-10-12 11:12:31,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=469, Invalid=1091, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 11:12:31,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2020-10-12 11:12:31,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1170. [2020-10-12 11:12:31,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1170 states. [2020-10-12 11:12:31,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1451 transitions. [2020-10-12 11:12:31,950 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1451 transitions. Word has length 180 [2020-10-12 11:12:31,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:12:31,950 INFO L479 AbstractCegarLoop]: Abstraction has 1170 states and 1451 transitions. [2020-10-12 11:12:31,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:12:31,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1451 transitions. [2020-10-12 11:12:31,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-12 11:12:31,955 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:12:31,955 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 11:12:31,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 11:12:31,956 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:12:31,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:12:31,956 INFO L82 PathProgramCache]: Analyzing trace with hash 90459230, now seen corresponding path program 1 times [2020-10-12 11:12:31,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:12:31,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499928591] [2020-10-12 11:12:31,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:12:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:32,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:32,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:32,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:32,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:32,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:34,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:34,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-12 11:12:34,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:12:34,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2204 [2020-10-12 11:12:34,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:34,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:12:34,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-12 11:12:34,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:12:34,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:34,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:12:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:34,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:34,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:34,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:12:34,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:34,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:12:34,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:34,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:34,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:34,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:34,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:34,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:12:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:34,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:34,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:34,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:12:34,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:34,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:12:34,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:34,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:34,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:34,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:34,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:34,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:12:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:34,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:34,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:34,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:12:34,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:34,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:12:34,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:34,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:34,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:12:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:34,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:34,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:34,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 11:12:34,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:34,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 11:12:34,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:34,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:34,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:34,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:12:34,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:34,724 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-12 11:12:34,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499928591] [2020-10-12 11:12:34,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:12:34,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:12:34,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974662533] [2020-10-12 11:12:34,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:12:34,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:12:34,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:12:34,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:12:34,726 INFO L87 Difference]: Start difference. First operand 1170 states and 1451 transitions. Second operand 13 states. [2020-10-12 11:12:36,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:12:36,575 INFO L93 Difference]: Finished difference Result 2342 states and 2950 transitions. [2020-10-12 11:12:36,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:12:36,581 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 189 [2020-10-12 11:12:36,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:12:36,586 INFO L225 Difference]: With dead ends: 2342 [2020-10-12 11:12:36,586 INFO L226 Difference]: Without dead ends: 1238 [2020-10-12 11:12:36,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:12:36,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2020-10-12 11:12:36,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1172. [2020-10-12 11:12:36,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2020-10-12 11:12:36,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1455 transitions. [2020-10-12 11:12:36,628 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1455 transitions. Word has length 189 [2020-10-12 11:12:36,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:12:36,628 INFO L479 AbstractCegarLoop]: Abstraction has 1172 states and 1455 transitions. [2020-10-12 11:12:36,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:12:36,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1455 transitions. [2020-10-12 11:12:36,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-12 11:12:36,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:12:36,634 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:12:36,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 11:12:36,634 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:12:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:12:36,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1917577208, now seen corresponding path program 1 times [2020-10-12 11:12:36,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:12:36,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924660433] [2020-10-12 11:12:36,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:12:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:36,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:36,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:36,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:36,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:38,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:40,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:40,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:41,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:41,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-12 11:12:41,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:12:41,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 11:12:41,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:41,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:12:41,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 11:12:41,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 11:12:41,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:41,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:12:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:41,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:41,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:41,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:12:41,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:41,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:12:41,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:41,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:41,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:41,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:41,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:41,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:12:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:41,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:41,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:41,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:12:41,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:41,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:12:41,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:41,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:41,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:41,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 11:12:41,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:41,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:12:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:41,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:41,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:41,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:41,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:12:41,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:12:41,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 11:12:41,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:12:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:12:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 11:12:41,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:41,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 11:12:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:41,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:41,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:41,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:41,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:12:41,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:12:41,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 11:12:41,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:41,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:12:41,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:12:41,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 11:12:41,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:41,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 11:12:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:41,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:41,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:41,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:12:41,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:41,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:12:41,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:12:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:12:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:12:41,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:41,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 11:12:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:41,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:41,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:41,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:12:41,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:41,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:12:41,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:41,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:41,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:12:41,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:41,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:41,997 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 145 proven. 47 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-12 11:12:41,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924660433] [2020-10-12 11:12:41,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:12:41,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 11:12:41,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048136816] [2020-10-12 11:12:41,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 11:12:41,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:12:41,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 11:12:41,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-12 11:12:41,999 INFO L87 Difference]: Start difference. First operand 1172 states and 1455 transitions. Second operand 9 states. [2020-10-12 11:12:43,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:12:43,958 INFO L93 Difference]: Finished difference Result 3300 states and 4126 transitions. [2020-10-12 11:12:43,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 11:12:43,959 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 215 [2020-10-12 11:12:43,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:12:43,966 INFO L225 Difference]: With dead ends: 3300 [2020-10-12 11:12:43,966 INFO L226 Difference]: Without dead ends: 1727 [2020-10-12 11:12:43,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-12 11:12:43,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2020-10-12 11:12:44,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1390. [2020-10-12 11:12:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1390 states. [2020-10-12 11:12:44,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1640 transitions. [2020-10-12 11:12:44,025 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1640 transitions. Word has length 215 [2020-10-12 11:12:44,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:12:44,025 INFO L479 AbstractCegarLoop]: Abstraction has 1390 states and 1640 transitions. [2020-10-12 11:12:44,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 11:12:44,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1640 transitions. [2020-10-12 11:12:44,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-12 11:12:44,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:12:44,032 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:12:44,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 11:12:44,032 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:12:44,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:12:44,032 INFO L82 PathProgramCache]: Analyzing trace with hash -804249442, now seen corresponding path program 1 times [2020-10-12 11:12:44,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:12:44,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106433274] [2020-10-12 11:12:44,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:12:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:44,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:44,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:44,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:44,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-12 11:12:44,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:12:44,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 418 [2020-10-12 11:12:44,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:44,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:12:44,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-12 11:12:44,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 11:12:44,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:44,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:12:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:44,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:44,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:44,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:12:44,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:44,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:12:44,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:44,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:44,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:12:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:44,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:44,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:44,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:12:44,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:44,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:12:44,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:44,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:44,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:44,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:44,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:44,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:12:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:44,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:44,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:44,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:12:44,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:44,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:12:44,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:44,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:44,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:44,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:44,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:44,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:12:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:44,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:44,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:44,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:12:44,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:44,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 11:12:44,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 11:12:44,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:44,834 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-12 11:12:44,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106433274] [2020-10-12 11:12:44,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:12:44,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:12:44,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442312999] [2020-10-12 11:12:44,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:12:44,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:12:44,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:12:44,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:12:44,837 INFO L87 Difference]: Start difference. First operand 1390 states and 1640 transitions. Second operand 5 states. [2020-10-12 11:12:45,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:12:45,891 INFO L93 Difference]: Finished difference Result 3409 states and 4071 transitions. [2020-10-12 11:12:45,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:12:45,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 221 [2020-10-12 11:12:45,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:12:45,901 INFO L225 Difference]: With dead ends: 3409 [2020-10-12 11:12:45,901 INFO L226 Difference]: Without dead ends: 2085 [2020-10-12 11:12:45,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:12:45,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2020-10-12 11:12:45,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2079. [2020-10-12 11:12:45,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2079 states. [2020-10-12 11:12:45,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 2396 transitions. [2020-10-12 11:12:45,954 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 2396 transitions. Word has length 221 [2020-10-12 11:12:45,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:12:45,954 INFO L479 AbstractCegarLoop]: Abstraction has 2079 states and 2396 transitions. [2020-10-12 11:12:45,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:12:45,955 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 2396 transitions. [2020-10-12 11:12:45,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-12 11:12:45,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:12:45,963 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 11:12:45,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 11:12:45,963 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:12:45,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:12:45,964 INFO L82 PathProgramCache]: Analyzing trace with hash -889412651, now seen corresponding path program 1 times [2020-10-12 11:12:45,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:12:45,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508881994] [2020-10-12 11:12:45,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:12:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:46,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:46,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:46,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:46,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:46,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:47,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:48,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:50,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:50,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-12 11:12:50,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 11:12:50,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4564 [2020-10-12 11:12:50,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:50,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:12:50,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-12 11:12:50,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 11:12:50,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:51,276 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-10-12 11:12:51,554 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2020-10-12 11:12:52,001 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 57 [2020-10-12 11:12:52,238 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 49 [2020-10-12 11:12:52,528 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 52 [2020-10-12 11:12:52,901 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 50 [2020-10-12 11:12:53,202 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 54 [2020-10-12 11:12:53,548 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 49 [2020-10-12 11:12:53,906 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 48 [2020-10-12 11:12:54,195 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 44 [2020-10-12 11:12:54,460 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 44 [2020-10-12 11:12:54,648 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 32 [2020-10-12 11:12:54,893 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 35 [2020-10-12 11:12:54,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:12:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:54,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:54,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:54,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:12:54,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:54,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:12:54,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:54,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:54,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:54,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:54,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:55,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:12:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:55,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:55,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:55,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:12:55,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:55,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:12:55,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:55,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:55,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:55,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:55,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:55,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:12:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:55,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:55,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:55,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:12:55,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:55,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:12:55,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:55,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:12:55,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:55,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:12:55,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:55,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 11:12:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:55,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:55,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:55,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 11:12:55,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:12:55,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 11:12:55,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:12:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:12:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 11:12:55,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:55,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 11:12:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:12:55,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:55,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:12:55,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:12:55,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:12:55,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:12:55,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 11:12:55,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:12:55,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:12:55,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:12:55,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:12:55,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:12:55,543 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 169 proven. 49 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-12 11:12:55,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508881994] [2020-10-12 11:12:55,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:12:55,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:12:55,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245989055] [2020-10-12 11:12:55,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:12:55,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:12:55,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:12:55,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:12:55,546 INFO L87 Difference]: Start difference. First operand 2079 states and 2396 transitions. Second operand 20 states. [2020-10-12 11:12:55,798 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 11:12:55,977 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 11:12:56,458 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-10-12 11:12:56,867 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-10-12 11:12:57,234 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-10-12 11:12:57,685 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-12 11:12:58,048 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2020-10-12 11:12:58,456 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2020-10-12 11:12:58,801 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2020-10-12 11:12:59,246 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2020-10-12 11:12:59,556 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2020-10-12 11:12:59,909 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-10-12 11:13:00,193 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 100 [2020-10-12 11:13:00,476 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-12 11:13:00,788 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-12 11:13:01,048 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2020-10-12 11:13:02,275 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-12 11:13:02,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:13:02,692 INFO L93 Difference]: Finished difference Result 4143 states and 4831 transitions. [2020-10-12 11:13:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 11:13:02,697 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 245 [2020-10-12 11:13:02,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:13:02,707 INFO L225 Difference]: With dead ends: 4143 [2020-10-12 11:13:02,708 INFO L226 Difference]: Without dead ends: 2130 [2020-10-12 11:13:02,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=577, Invalid=1229, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 11:13:02,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2020-10-12 11:13:02,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1869. [2020-10-12 11:13:02,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1869 states. [2020-10-12 11:13:02,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 2137 transitions. [2020-10-12 11:13:02,767 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 2137 transitions. Word has length 245 [2020-10-12 11:13:02,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:13:02,767 INFO L479 AbstractCegarLoop]: Abstraction has 1869 states and 2137 transitions. [2020-10-12 11:13:02,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:13:02,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 2137 transitions. [2020-10-12 11:13:02,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-12 11:13:02,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:13:02,778 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 11:13:02,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 11:13:02,778 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:13:02,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:13:02,779 INFO L82 PathProgramCache]: Analyzing trace with hash 2050648368, now seen corresponding path program 1 times [2020-10-12 11:13:02,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:13:02,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23407573] [2020-10-12 11:13:02,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:13:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:13:02,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:13:03,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:13:03,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:13:03,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:13:05,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:13:05,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-10-12 11:13:05,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:13:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2231 [2020-10-12 11:13:05,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:13:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 11:13:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-12 11:13:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 11:13:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:13:05,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:13:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:13:05,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:13:05,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:13:05,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:13:05,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:13:05,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:13:05,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:13:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:13:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:13:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:13:05,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:13:05,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:13:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:13:05,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:13:05,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:13:05,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:13:05,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:13:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:13:05,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:13:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:13:05,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:13:05,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:13:05,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:13:05,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:13:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:13:05,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:13:05,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:13:05,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:13:05,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:13:05,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 11:13:05,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:13:05,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:13:05,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:13:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:13:05,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:13:05,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-12 11:13:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:13:05,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:13:05,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:13:05,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:13:05,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:13:05,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:13:05,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:13:05,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:13:05,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:13:05,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:13:05,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:13:05,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 11:13:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:13:05,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:13:05,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:13:05,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:13:05,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:13:05,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:13:05,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:13:05,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:13:05,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:13:05,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 11:13:05,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:13:05,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-12 11:13:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:13:05,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:13:05,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:13:05,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:13:05,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 11:13:05,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:13:05,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-12 11:13:05,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:13:05,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:13:05,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:13:05,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 11:13:05,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:13:05,903 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 226 proven. 70 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-12 11:13:05,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [23407573] [2020-10-12 11:13:05,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:13:05,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:13:05,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269467628] [2020-10-12 11:13:05,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:13:05,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:13:05,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:13:05,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:13:05,907 INFO L87 Difference]: Start difference. First operand 1869 states and 2137 transitions. Second operand 7 states. [2020-10-12 11:13:07,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:13:07,157 INFO L93 Difference]: Finished difference Result 3629 states and 4191 transitions. [2020-10-12 11:13:07,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:13:07,158 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 295 [2020-10-12 11:13:07,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:13:07,159 INFO L225 Difference]: With dead ends: 3629 [2020-10-12 11:13:07,159 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 11:13:07,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-12 11:13:07,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 11:13:07,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 11:13:07,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 11:13:07,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 11:13:07,167 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 295 [2020-10-12 11:13:07,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:13:07,167 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 11:13:07,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:13:07,168 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 11:13:07,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 11:13:07,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 11:13:07,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 11:13:08,238 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 123 [2020-10-12 11:13:08,405 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 42 [2020-10-12 11:13:09,337 WARN L193 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 81 [2020-10-12 11:13:09,599 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 60 [2020-10-12 11:13:09,919 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 67 [2020-10-12 11:13:09,923 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:13:09,924 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-12 11:13:09,925 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:13:09,925 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-12 11:13:09,925 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-12 11:13:09,925 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,925 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,925 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,925 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,926 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,926 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,926 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-12 11:13:09,926 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-12 11:13:09,926 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-12 11:13:09,926 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-12 11:13:09,926 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-12 11:13:09,927 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-12 11:13:09,927 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-12 11:13:09,927 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-12 11:13:09,928 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-12 11:13:09,928 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-12 11:13:09,929 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,929 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,930 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,930 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,930 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,930 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,930 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-12 11:13:09,930 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-12 11:13:09,930 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-12 11:13:09,930 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-12 11:13:09,931 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-12 11:13:09,931 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-12 11:13:09,931 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-12 11:13:09,931 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-12 11:13:09,931 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-12 11:13:09,931 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-12 11:13:09,931 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-12 11:13:09,932 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 473) no Hoare annotation was computed. [2020-10-12 11:13:09,932 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-12 11:13:09,932 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-12 11:13:09,932 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-12 11:13:09,932 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-12 11:13:09,932 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,932 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,933 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,933 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,933 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,933 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-12 11:13:09,933 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-12 11:13:09,934 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-12 11:13:09,934 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-12 11:13:09,934 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-12 11:13:09,934 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-12 11:13:09,934 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-12 11:13:09,934 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-12 11:13:09,934 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-12 11:13:09,934 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,935 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,935 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,935 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,935 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,936 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-12 11:13:09,937 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-12 11:13:09,937 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-12 11:13:09,937 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-12 11:13:09,938 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-12 11:13:09,938 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-12 11:13:09,938 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-12 11:13:09,938 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-12 11:13:09,938 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-12 11:13:09,938 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-12 11:13:09,938 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-12 11:13:09,938 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-12 11:13:09,938 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-12 11:13:09,938 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,939 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,939 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,939 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,939 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,939 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-12 11:13:09,939 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-12 11:13:09,940 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-12 11:13:09,940 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-12 11:13:09,940 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-12 11:13:09,940 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-12 11:13:09,940 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-12 11:13:09,940 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-12 11:13:09,940 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-12 11:13:09,940 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,940 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,941 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,941 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,941 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,941 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,941 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-12 11:13:09,941 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,941 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-12 11:13:09,941 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-12 11:13:09,941 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-12 11:13:09,941 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-12 11:13:09,942 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-12 11:13:09,942 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-12 11:13:09,942 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-12 11:13:09,942 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-12 11:13:09,942 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-12 11:13:09,942 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-12 11:13:09,942 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-12 11:13:09,942 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-12 11:13:09,942 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-12 11:13:09,942 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,943 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,943 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,943 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,943 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,944 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-12 11:13:09,944 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-12 11:13:09,944 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-12 11:13:09,944 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-12 11:13:09,945 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-12 11:13:09,945 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-12 11:13:09,945 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-12 11:13:09,945 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-12 11:13:09,945 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,945 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,945 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,946 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,946 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,946 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-12 11:13:09,946 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-12 11:13:09,947 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-12 11:13:09,947 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-12 11:13:09,947 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-12 11:13:09,947 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-12 11:13:09,947 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-12 11:13:09,947 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-12 11:13:09,947 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-12 11:13:09,947 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-12 11:13:09,948 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse4 (= ~a16~0 |old(~a16~0)|)) (.cse5 (= ~a8~0 |old(~a8~0)|))) (let ((.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse6 (and .cse0 .cse1 .cse3 .cse4 .cse5 (<= ~a21~0 1) (<= 1 ~a21~0))) (.cse7 (not (= |old(~a21~0)| 1)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= 1 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1))) (or (not (<= |old(~a21~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 1 |old(~a21~0)|)) .cse6) (or (and .cse0 .cse1 .cse2 .cse3 .cse5 (= ~a16~0 4)) (not (= 4 |old(~a16~0)|))) (or (not (= |old(~a7~0)| 1)) .cse6 .cse7) (or (not (= 6 |old(~a16~0)|)) (and .cse1 .cse0 (= ~a21~0 1) .cse3 .cse4 (= ~a8~0 15)) (not (= 0 |old(~a20~0)|)) (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6))) (not (= 15 |old(~a8~0)|)) .cse7 (not (= ~a12~0 8)))))) [2020-10-12 11:13:09,948 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-12 11:13:09,948 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,948 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,949 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,949 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,949 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-12 11:13:09,949 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,950 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,950 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-12 11:13:09,950 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-12 11:13:09,950 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-12 11:13:09,950 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-12 11:13:09,950 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-12 11:13:09,950 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-12 11:13:09,951 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-12 11:13:09,951 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-12 11:13:09,951 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-12 11:13:09,951 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-12 11:13:09,951 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-12 11:13:09,951 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-12 11:13:09,951 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,951 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,951 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,952 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,952 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,952 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-12 11:13:09,952 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,952 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-12 11:13:09,952 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-12 11:13:09,952 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-12 11:13:09,952 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-12 11:13:09,952 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-12 11:13:09,952 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-12 11:13:09,953 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-12 11:13:09,953 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-12 11:13:09,953 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-12 11:13:09,953 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-12 11:13:09,953 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-12 11:13:09,953 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-12 11:13:09,953 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-12 11:13:09,953 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-12 11:13:09,953 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,954 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,954 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,954 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,954 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,954 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-12 11:13:09,954 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-12 11:13:09,954 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-12 11:13:09,954 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-12 11:13:09,954 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-12 11:13:09,954 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-12 11:13:09,955 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-12 11:13:09,955 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-12 11:13:09,955 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-12 11:13:09,955 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-12 11:13:09,955 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-12 11:13:09,955 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 11:13:09,955 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (<= ~a21~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-12 11:13:09,955 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 11:13:09,956 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 11:13:09,956 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (<= 1 |old(~a20~0)|)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (<= |old(~a20~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-10-12 11:13:09,956 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-12 11:13:09,956 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (<= ~a21~0 1)) (.cse1 (<= 1 ~a21~0))) (or (and (<= ~a16~0 5) .cse0 .cse1) (not (<= 1 |old(~a20~0)|)) (not (= |old(~a21~0)| 1)) (not (<= |old(~a20~0)| 1)) (and (= ~a20~0 0) (= ~a16~0 6) (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1) (= 2 main_~input~0)) (= ~a8~0 15) .cse0 .cse1) (not (= |old(~a17~0)| 1)) (= ~a16~0 4) (not (= 5 |old(~a16~0)|)) (and (= ~a7~0 1) .cse0 .cse1) (and (<= 1 ~a20~0) (<= ~a20~0 1)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-12 11:13:09,956 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-12 11:13:09,956 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-12 11:13:09,957 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (= ~a20~0 0)) (.cse3 (= ~a16~0 6)) (.cse4 (= ~a8~0 15)) (.cse0 (<= ~a21~0 1)) (.cse1 (<= 1 ~a21~0))) (or (and (<= ~a16~0 5) .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse0 .cse1 (= ~a7~0 0) (= ~a17~0 0)) (not (<= 1 |old(~a20~0)|)) (not (= |old(~a21~0)| 1)) (not (<= |old(~a20~0)| 1)) (and .cse2 .cse3 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1) (= 2 main_~input~0)) .cse4 .cse0 .cse1) (and .cse2 (<= 1 ~a17~0) .cse3 .cse4 (<= ~a17~0 1) .cse0 .cse1) (not (= |old(~a17~0)| 1)) (= ~a16~0 4) (not (= 5 |old(~a16~0)|)) (and (= ~a7~0 1) .cse0 .cse1) (and (<= 1 ~a20~0) (<= ~a20~0 1)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-12 11:13:09,957 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-12 11:13:10,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:13:10 BoogieIcfgContainer [2020-10-12 11:13:10,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 11:13:10,009 INFO L168 Benchmark]: Toolchain (without parser) took 126567.02 ms. Allocated memory was 140.5 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 101.6 MB in the beginning and 582.4 MB in the end (delta: -480.8 MB). Peak memory consumption was 701.5 MB. Max. memory is 7.1 GB. [2020-10-12 11:13:10,010 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-12 11:13:10,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.80 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 169.7 MB in the end (delta: -68.3 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-10-12 11:13:10,011 INFO L168 Benchmark]: Boogie Preprocessor took 103.82 ms. Allocated memory is still 203.9 MB. Free memory was 169.7 MB in the beginning and 164.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2020-10-12 11:13:10,012 INFO L168 Benchmark]: RCFGBuilder took 1162.26 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 164.2 MB in the beginning and 176.3 MB in the end (delta: -12.1 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. [2020-10-12 11:13:10,013 INFO L168 Benchmark]: TraceAbstraction took 124542.88 ms. Allocated memory was 237.5 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 176.3 MB in the beginning and 582.4 MB in the end (delta: -406.1 MB). Peak memory consumption was 679.2 MB. Max. memory is 7.1 GB. [2020-10-12 11:13:10,016 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 752.80 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 169.7 MB in the end (delta: -68.3 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.82 ms. Allocated memory is still 203.9 MB. Free memory was 169.7 MB in the beginning and 164.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1162.26 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 164.2 MB in the beginning and 176.3 MB in the end (delta: -12.1 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 124542.88 ms. Allocated memory was 237.5 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 176.3 MB in the beginning and 582.4 MB in the end (delta: -406.1 MB). Peak memory consumption was 679.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 473]: 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: 583]: Loop Invariant Derived loop invariant: (((((((((((((((a16 <= 5 && a21 <= 1) && 1 <= a21) || ((((((a20 == 0 && a16 == 6) && a8 == 15) && a21 <= 1) && 1 <= a21) && a7 == 0) && a17 == 0)) || !(1 <= \old(a20))) || !(\old(a21) == 1)) || !(\old(a20) <= 1)) || (((((a20 == 0 && a16 == 6) && (((((5 == input || 6 == input) || input == 4) || 3 == input) || input == 1) || 2 == input)) && a8 == 15) && a21 <= 1) && 1 <= a21)) || ((((((a20 == 0 && 1 <= a17) && a16 == 6) && a8 == 15) && a17 <= 1) && a21 <= 1) && 1 <= a21)) || !(\old(a17) == 1)) || a16 == 4) || !(5 == \old(a16))) || ((a7 == 1 && a21 <= 1) && 1 <= a21)) || (1 <= a20 && a20 <= 1)) || !(15 == \old(a8))) || !(\old(a7) == 0)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 121.6s, OverallIterations: 17, TraceHistogramMax: 6, AutomataDifference: 48.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 466 SDtfs, 7454 SDslu, 837 SDs, 0 SdLazy, 17083 SolverSat, 1763 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 527 GetRequests, 183 SyntacticMatches, 12 SemanticMatches, 332 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1545 ImplicationChecksByTransitivity, 37.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2079occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 908 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 191 PreInvPairs, 253 NumberOfFragments, 560 HoareAnnotationTreeSize, 191 FomulaSimplifications, 18884 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5561 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 69.4s InterpolantComputationTime, 2890 NumberOfCodeBlocks, 2890 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2873 ConstructedInterpolants, 0 QuantifiedInterpolants, 7014440 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 1502/1773 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...