/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=NARROWEST --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_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:00:57,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:00:57,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:00:58,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:00:58,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:00:58,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:00:58,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:00:58,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:00:58,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:00:58,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:00:58,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:00:58,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:00:58,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:00:58,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:00:58,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:00:58,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:00:58,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:00:58,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:00:58,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:00:58,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:00:58,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:00:58,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:00:58,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:00:58,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:00:58,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:00:58,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:00:58,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:00:58,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:00:58,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:00:58,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:00:58,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:00:58,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:00:58,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:00:58,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:00:58,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:00:58,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:00:58,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:00:58,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:00:58,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:00:58,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:00:58,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:00:58,072 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 [2020-10-13 06:00:58,114 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:00:58,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:00:58,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:00:58,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:00:58,116 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:00:58,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:00:58,117 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:00:58,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:00:58,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:00:58,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:00:58,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:00:58,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:00:58,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:00:58,119 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:00:58,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:00:58,120 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:00:58,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:00:58,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:00:58,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:00:58,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:00:58,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:00:58,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:00:58,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:00:58,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:00:58,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:00:58,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:00:58,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:00:58,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:00:58,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:00:58,122 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 06:00:58,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:00:58,428 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:00:58,431 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:00:58,432 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:00:58,433 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:00:58,433 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label18.c [2020-10-13 06:00:58,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db6dfe11a/94d5f11bd2904c829145ff22a18fe9fa/FLAGd2c11b076 [2020-10-13 06:00:59,057 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:00:59,057 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label18.c [2020-10-13 06:00:59,073 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db6dfe11a/94d5f11bd2904c829145ff22a18fe9fa/FLAGd2c11b076 [2020-10-13 06:00:59,357 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db6dfe11a/94d5f11bd2904c829145ff22a18fe9fa [2020-10-13 06:00:59,368 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:00:59,370 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:00:59,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:00:59,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:00:59,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:00:59,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:00:59" (1/1) ... [2020-10-13 06:00:59,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@450e3cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:00:59, skipping insertion in model container [2020-10-13 06:00:59,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:00:59" (1/1) ... [2020-10-13 06:00:59,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:00:59,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:00:59,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:00:59,987 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:01:00,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:01:00,179 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:01:00,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:00 WrapperNode [2020-10-13 06:01:00,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:01:00,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:01:00,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:01:00,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:01:00,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:00" (1/1) ... [2020-10-13 06:01:00,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:00" (1/1) ... [2020-10-13 06:01:00,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:00" (1/1) ... [2020-10-13 06:01:00,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:00" (1/1) ... [2020-10-13 06:01:00,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:00" (1/1) ... [2020-10-13 06:01:00,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:00" (1/1) ... [2020-10-13 06:01:00,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:00" (1/1) ... [2020-10-13 06:01:00,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:01:00,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:01:00,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:01:00,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:01:00,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:00" (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 [2020-10-13 06:01:00,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:01:00,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:01:00,388 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:01:00,388 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:01:00,388 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:01:00,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:01:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:01:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:01:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:01:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:01:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:01:01,540 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:01:01,540 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:01:01,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:01:01 BoogieIcfgContainer [2020-10-13 06:01:01,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:01:01,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:01:01,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:01:01,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:01:01,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:00:59" (1/3) ... [2020-10-13 06:01:01,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddeef8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:01:01, skipping insertion in model container [2020-10-13 06:01:01,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:00" (2/3) ... [2020-10-13 06:01:01,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddeef8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:01:01, skipping insertion in model container [2020-10-13 06:01:01,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:01:01" (3/3) ... [2020-10-13 06:01:01,555 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label18.c [2020-10-13 06:01:01,566 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:01:01,575 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:01:01,591 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:01:01,618 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:01:01,618 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:01:01,618 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:01:01,618 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:01:01,618 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:01:01,619 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:01:01,619 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:01:01,619 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:01:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:01:01,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-13 06:01:01,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:01,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:01,657 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:01,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:01,664 INFO L82 PathProgramCache]: Analyzing trace with hash 652609782, now seen corresponding path program 1 times [2020-10-13 06:01:01,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:01,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947566905] [2020-10-13 06:01:01,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:01,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:02,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:03,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:03,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 06:01:03,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:03,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1530 [2020-10-13 06:01:03,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:03,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:01:03,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:01:03,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:01:03,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:01:04,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:04,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:04,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:04,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:04,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:04,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:01:04,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:04,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:04,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:04,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:01:04,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:04,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:01:04,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947566905] [2020-10-13 06:01:04,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:01:04,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 06:01:04,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69108851] [2020-10-13 06:01:04,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:01:04,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:04,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:01:04,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:01:04,226 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-13 06:01:04,547 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-13 06:01:04,992 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 06:01:05,234 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-13 06:01:05,635 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 06:01:06,050 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-10-13 06:01:06,370 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2020-10-13 06:01:07,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:07,383 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:01:07,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:01:07,385 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 106 [2020-10-13 06:01:07,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:07,410 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:01:07,411 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:01:07,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:07,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:01:07,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:01:07,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:01:07,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:01:07,510 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 106 [2020-10-13 06:01:07,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:07,511 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:01:07,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:01:07,511 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:01:07,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-13 06:01:07,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:07,515 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, 1] [2020-10-13 06:01:07,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:01:07,516 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:07,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:07,516 INFO L82 PathProgramCache]: Analyzing trace with hash -288566767, now seen corresponding path program 1 times [2020-10-13 06:01:07,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:07,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633817476] [2020-10-13 06:01:07,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:07,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:07,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:07,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:09,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 06:01:09,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:09,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1678 [2020-10-13 06:01:09,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:09,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:09,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:01:09,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:01:09,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:09,649 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 34 [2020-10-13 06:01:09,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:09,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:09,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:09,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:09,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:09,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:09,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:09,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:09,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:09,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:09,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:09,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:09,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:01:09,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:09,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:01:09,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:09,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:01:09,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:10,086 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:01:10,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633817476] [2020-10-13 06:01:10,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:10,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:01:10,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890063040] [2020-10-13 06:01:10,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:01:10,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:10,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:01:10,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:01:10,091 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 14 states. [2020-10-13 06:01:10,461 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-10-13 06:01:10,663 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-13 06:01:11,080 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-13 06:01:11,389 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-13 06:01:12,264 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-13 06:01:12,610 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-10-13 06:01:13,010 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-10-13 06:01:13,216 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-13 06:01:14,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:14,387 INFO L93 Difference]: Finished difference Result 508 states and 777 transitions. [2020-10-13 06:01:14,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-13 06:01:14,387 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 114 [2020-10-13 06:01:14,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:14,392 INFO L225 Difference]: With dead ends: 508 [2020-10-13 06:01:14,392 INFO L226 Difference]: Without dead ends: 369 [2020-10-13 06:01:14,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=316, Invalid=740, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 06:01:14,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-10-13 06:01:14,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 278. [2020-10-13 06:01:14,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-13 06:01:14,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 357 transitions. [2020-10-13 06:01:14,418 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 357 transitions. Word has length 114 [2020-10-13 06:01:14,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:14,419 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 357 transitions. [2020-10-13 06:01:14,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:01:14,419 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 357 transitions. [2020-10-13 06:01:14,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-13 06:01:14,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:14,422 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, 1] [2020-10-13 06:01:14,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:01:14,423 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:14,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:14,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1757329551, now seen corresponding path program 1 times [2020-10-13 06:01:14,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:14,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899557607] [2020-10-13 06:01:14,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:14,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:14,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:15,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:15,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:15,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 06:01:15,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:15,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 812 [2020-10-13 06:01:15,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:15,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:01:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 06:01:15,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:15,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:15,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:15,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:15,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:15,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:15,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:15,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:15,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:15,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:15,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:15,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:15,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:01:15,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:15,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:15,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:15,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:15,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:15,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:01:15,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:15,526 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:01:15,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899557607] [2020-10-13 06:01:15,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:15,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:15,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968552337] [2020-10-13 06:01:15,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:15,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:15,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:15,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:15,529 INFO L87 Difference]: Start difference. First operand 278 states and 357 transitions. Second operand 5 states. [2020-10-13 06:01:16,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:16,607 INFO L93 Difference]: Finished difference Result 591 states and 814 transitions. [2020-10-13 06:01:16,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:16,610 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2020-10-13 06:01:16,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:16,613 INFO L225 Difference]: With dead ends: 591 [2020-10-13 06:01:16,613 INFO L226 Difference]: Without dead ends: 280 [2020-10-13 06:01:16,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:16,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-13 06:01:16,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 278. [2020-10-13 06:01:16,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-13 06:01:16,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 332 transitions. [2020-10-13 06:01:16,634 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 332 transitions. Word has length 117 [2020-10-13 06:01:16,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:16,636 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 332 transitions. [2020-10-13 06:01:16,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:16,636 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 332 transitions. [2020-10-13 06:01:16,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-13 06:01:16,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:16,641 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:16,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:01:16,642 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:16,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:16,642 INFO L82 PathProgramCache]: Analyzing trace with hash 2126184851, now seen corresponding path program 1 times [2020-10-13 06:01:16,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:16,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414956537] [2020-10-13 06:01:16,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:16,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:17,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:18,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:18,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-13 06:01:18,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:18,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1701 [2020-10-13 06:01:18,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:01:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:01:18,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:18,761 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:01:19,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:19,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:19,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:19,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:19,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:19,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:19,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:19,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:19,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:19,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:19,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:19,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:19,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:19,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:01:19,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:19,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 06:01:19,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:19,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:19,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:19,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:01:19,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:19,506 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:01:19,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [414956537] [2020-10-13 06:01:19,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:19,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:19,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649284555] [2020-10-13 06:01:19,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:19,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:19,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:19,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:19,509 INFO L87 Difference]: Start difference. First operand 278 states and 332 transitions. Second operand 13 states. [2020-10-13 06:01:20,059 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:01:20,467 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:01:20,906 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:01:21,190 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:01:21,462 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:01:21,849 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:01:22,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:22,196 INFO L93 Difference]: Finished difference Result 556 states and 700 transitions. [2020-10-13 06:01:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:01:22,197 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 147 [2020-10-13 06:01:22,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:22,200 INFO L225 Difference]: With dead ends: 556 [2020-10-13 06:01:22,200 INFO L226 Difference]: Without dead ends: 327 [2020-10-13 06:01:22,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:22,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-13 06:01:22,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2020-10-13 06:01:22,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-10-13 06:01:22,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 380 transitions. [2020-10-13 06:01:22,220 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 380 transitions. Word has length 147 [2020-10-13 06:01:22,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:22,220 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 380 transitions. [2020-10-13 06:01:22,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:22,221 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 380 transitions. [2020-10-13 06:01:22,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-13 06:01:22,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:22,223 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, 1] [2020-10-13 06:01:22,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:01:22,224 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:22,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:22,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1556036392, now seen corresponding path program 1 times [2020-10-13 06:01:22,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:22,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810204890] [2020-10-13 06:01:22,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:22,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:22,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:22,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:22,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:24,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 06:01:27,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:01:27,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 06:01:27,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:27,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:01:27,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:01:27,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:27,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:01:27,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:27,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:01:27,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:27,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:27,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:27,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:01:27,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:01:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:01:27,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:01:27,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:27,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:01:27,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,977 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:01:27,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [810204890] [2020-10-13 06:01:27,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:27,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:27,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102239841] [2020-10-13 06:01:27,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:27,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:27,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:27,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:27,980 INFO L87 Difference]: Start difference. First operand 321 states and 380 transitions. Second operand 13 states. [2020-10-13 06:01:28,922 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:01:29,307 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:01:29,595 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:01:29,799 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:01:30,132 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:01:30,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:30,799 INFO L93 Difference]: Finished difference Result 654 states and 817 transitions. [2020-10-13 06:01:30,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:01:30,800 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 164 [2020-10-13 06:01:30,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:30,806 INFO L225 Difference]: With dead ends: 654 [2020-10-13 06:01:30,806 INFO L226 Difference]: Without dead ends: 399 [2020-10-13 06:01:30,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:01:30,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-13 06:01:30,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 393. [2020-10-13 06:01:30,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-10-13 06:01:30,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 458 transitions. [2020-10-13 06:01:30,841 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 458 transitions. Word has length 164 [2020-10-13 06:01:30,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:30,843 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 458 transitions. [2020-10-13 06:01:30,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:30,843 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 458 transitions. [2020-10-13 06:01:30,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-13 06:01:30,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:30,848 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:01:30,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:01:30,848 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:30,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:30,849 INFO L82 PathProgramCache]: Analyzing trace with hash -704733273, now seen corresponding path program 1 times [2020-10-13 06:01:30,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:30,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160463150] [2020-10-13 06:01:30,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:30,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:30,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:31,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:32,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:32,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 06:01:32,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:32,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1608 [2020-10-13 06:01:32,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:32,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:32,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:01:32,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:01:32,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:33,040 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-13 06:01:33,286 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-13 06:01:33,580 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 51 [2020-10-13 06:01:33,864 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 47 [2020-10-13 06:01:34,136 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 43 [2020-10-13 06:01:34,383 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 40 [2020-10-13 06:01:34,551 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 35 [2020-10-13 06:01:34,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:34,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:34,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:34,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:34,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:34,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:34,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:34,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:34,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:34,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:34,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:34,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:34,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:34,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:34,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:34,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:34,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 06:01:34,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:34,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:34,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:34,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:01:34,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:34,947 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:01:34,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160463150] [2020-10-13 06:01:34,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:34,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:34,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176076853] [2020-10-13 06:01:34,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:34,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:34,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:34,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:34,954 INFO L87 Difference]: Start difference. First operand 393 states and 458 transitions. Second operand 13 states. [2020-10-13 06:01:35,403 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2020-10-13 06:01:35,566 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:01:35,729 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 06:01:36,208 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 115 [2020-10-13 06:01:36,729 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 112 [2020-10-13 06:01:37,050 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2020-10-13 06:01:37,386 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 106 [2020-10-13 06:01:37,706 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 101 [2020-10-13 06:01:38,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:38,134 INFO L93 Difference]: Finished difference Result 793 states and 971 transitions. [2020-10-13 06:01:38,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:01:38,134 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 169 [2020-10-13 06:01:38,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:38,137 INFO L225 Difference]: With dead ends: 793 [2020-10-13 06:01:38,137 INFO L226 Difference]: Without dead ends: 446 [2020-10-13 06:01:38,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:38,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-10-13 06:01:38,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 444. [2020-10-13 06:01:38,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-13 06:01:38,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 510 transitions. [2020-10-13 06:01:38,157 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 510 transitions. Word has length 169 [2020-10-13 06:01:38,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:38,158 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 510 transitions. [2020-10-13 06:01:38,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 510 transitions. [2020-10-13 06:01:38,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-13 06:01:38,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:38,162 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:01:38,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:01:38,162 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:38,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:38,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1703151014, now seen corresponding path program 1 times [2020-10-13 06:01:38,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:38,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2147357459] [2020-10-13 06:01:38,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:38,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:38,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:38,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:38,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:40,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:40,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-13 06:01:40,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:01:40,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2246 [2020-10-13 06:01:40,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:40,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:40,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:01:40,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:01:40,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:40,846 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-10-13 06:01:41,038 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2020-10-13 06:01:41,279 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 53 [2020-10-13 06:01:41,491 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 50 [2020-10-13 06:01:41,690 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 46 [2020-10-13 06:01:41,885 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 42 [2020-10-13 06:01:42,058 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 36 [2020-10-13 06:01:42,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:42,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:42,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:42,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:42,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:42,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:42,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:42,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:42,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:42,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:42,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:42,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:42,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:42,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:42,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:01:42,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:42,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:01:42,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:42,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:42,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:42,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:01:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:42,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:42,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:42,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:01:42,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:42,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:01:42,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:01:42,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:42,395 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 06:01:42,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2147357459] [2020-10-13 06:01:42,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:42,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:42,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026014469] [2020-10-13 06:01:42,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:42,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:42,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:42,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:42,397 INFO L87 Difference]: Start difference. First operand 444 states and 510 transitions. Second operand 13 states. [2020-10-13 06:01:42,881 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-13 06:01:43,043 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 06:01:43,410 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-13 06:01:43,840 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-13 06:01:44,133 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-13 06:01:44,517 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2020-10-13 06:01:44,894 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2020-10-13 06:01:45,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:45,238 INFO L93 Difference]: Finished difference Result 886 states and 1063 transitions. [2020-10-13 06:01:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:01:45,239 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 180 [2020-10-13 06:01:45,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:45,243 INFO L225 Difference]: With dead ends: 886 [2020-10-13 06:01:45,243 INFO L226 Difference]: Without dead ends: 508 [2020-10-13 06:01:45,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:01:45,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-13 06:01:45,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2020-10-13 06:01:45,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-10-13 06:01:45,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 581 transitions. [2020-10-13 06:01:45,265 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 581 transitions. Word has length 180 [2020-10-13 06:01:45,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:45,265 INFO L479 AbstractCegarLoop]: Abstraction has 508 states and 581 transitions. [2020-10-13 06:01:45,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:45,265 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 581 transitions. [2020-10-13 06:01:45,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-13 06:01:45,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:45,268 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:01:45,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:01:45,269 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:45,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:45,269 INFO L82 PathProgramCache]: Analyzing trace with hash -973396874, now seen corresponding path program 1 times [2020-10-13 06:01:45,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:45,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941955046] [2020-10-13 06:01:45,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:45,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:45,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:45,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:45,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:48,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:48,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-13 06:01:48,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:01:48,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3003 [2020-10-13 06:01:48,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:48,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:48,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:01:48,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:01:48,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:48,849 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 41 [2020-10-13 06:01:49,001 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 39 [2020-10-13 06:01:49,148 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2020-10-13 06:01:49,296 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 35 [2020-10-13 06:01:49,444 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 32 [2020-10-13 06:01:49,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:49,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:49,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:49,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:49,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:49,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:49,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:49,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:49,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:49,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:49,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:01:49,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:49,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:49,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:49,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:49,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:49,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:49,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:49,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:01:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:49,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:49,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:49,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:01:49,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:49,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:01:49,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:49,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:49,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:49,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:01:49,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:49,847 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:01:49,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941955046] [2020-10-13 06:01:49,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:49,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:49,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070555686] [2020-10-13 06:01:49,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:49,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:49,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:49,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:49,850 INFO L87 Difference]: Start difference. First operand 508 states and 581 transitions. Second operand 13 states. [2020-10-13 06:01:51,001 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-13 06:01:51,376 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:01:51,747 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-13 06:01:52,022 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-13 06:01:52,364 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-10-13 06:01:52,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:52,827 INFO L93 Difference]: Finished difference Result 1010 states and 1198 transitions. [2020-10-13 06:01:52,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:01:52,828 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 183 [2020-10-13 06:01:52,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:52,831 INFO L225 Difference]: With dead ends: 1010 [2020-10-13 06:01:52,832 INFO L226 Difference]: Without dead ends: 551 [2020-10-13 06:01:52,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:01:52,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2020-10-13 06:01:52,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 546. [2020-10-13 06:01:52,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2020-10-13 06:01:52,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 626 transitions. [2020-10-13 06:01:52,853 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 626 transitions. Word has length 183 [2020-10-13 06:01:52,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:52,853 INFO L479 AbstractCegarLoop]: Abstraction has 546 states and 626 transitions. [2020-10-13 06:01:52,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:52,853 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 626 transitions. [2020-10-13 06:01:52,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-13 06:01:52,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:52,857 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:01:52,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:01:52,857 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:52,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:52,858 INFO L82 PathProgramCache]: Analyzing trace with hash -931922022, now seen corresponding path program 1 times [2020-10-13 06:01:52,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:52,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010432308] [2020-10-13 06:01:52,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:52,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:52,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:53,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:53,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:55,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:55,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-13 06:01:55,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:01:55,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2215 [2020-10-13 06:01:55,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:01:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:01:55,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:55,455 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-13 06:01:55,591 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-13 06:01:55,800 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 41 [2020-10-13 06:01:55,996 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 40 [2020-10-13 06:01:56,140 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 38 [2020-10-13 06:01:56,286 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 36 [2020-10-13 06:01:56,419 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 33 [2020-10-13 06:01:56,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:56,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:56,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:56,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:56,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:56,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:56,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:56,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:56,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:56,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:56,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:56,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:56,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:56,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:56,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:01:56,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:56,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:01:56,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:56,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:56,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:56,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:56,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:56,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:01:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:56,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:56,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:56,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:01:56,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:56,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:01:56,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:01:56,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:56,767 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:01:56,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010432308] [2020-10-13 06:01:56,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:56,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:56,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309746657] [2020-10-13 06:01:56,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:56,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:56,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:56,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:56,772 INFO L87 Difference]: Start difference. First operand 546 states and 626 transitions. Second operand 13 states. [2020-10-13 06:01:57,567 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:01:57,927 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:01:58,315 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-13 06:01:58,583 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-13 06:01:58,948 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2020-10-13 06:01:59,309 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-10-13 06:01:59,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:59,709 INFO L93 Difference]: Finished difference Result 1088 states and 1290 transitions. [2020-10-13 06:01:59,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:01:59,710 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 186 [2020-10-13 06:01:59,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:59,715 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:01:59,715 INFO L226 Difference]: Without dead ends: 591 [2020-10-13 06:01:59,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:01:59,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2020-10-13 06:01:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 589. [2020-10-13 06:01:59,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-13 06:01:59,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 676 transitions. [2020-10-13 06:01:59,739 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 676 transitions. Word has length 186 [2020-10-13 06:01:59,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:59,739 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 676 transitions. [2020-10-13 06:01:59,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:59,740 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 676 transitions. [2020-10-13 06:01:59,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-13 06:01:59,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:59,743 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, 1] [2020-10-13 06:01:59,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:01:59,744 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:59,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:59,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1490726641, now seen corresponding path program 1 times [2020-10-13 06:01:59,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:59,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537800374] [2020-10-13 06:01:59,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:59,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:59,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:00,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:00,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:00,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-13 06:02:02,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:02:02,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2925 [2020-10-13 06:02:02,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:02,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:02:02,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:02:02,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:03,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:03,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:03,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:03,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:03,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:03,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:03,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:03,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:03,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:03,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:03,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:03,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:02:03,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:03,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:02:03,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:03,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:03,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:03,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:03,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:03,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:02:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:03,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:03,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:03,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:02:03,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:03,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:02:03,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:03,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:03,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:03,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:03,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:03,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:02:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:03,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:03,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:03,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:02:03,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:03,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:02:03,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:03,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:03,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:03,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:02:03,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:02:03,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537800374] [2020-10-13 06:02:03,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:03,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:03,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266524327] [2020-10-13 06:02:03,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:03,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:03,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:03,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:03,810 INFO L87 Difference]: Start difference. First operand 589 states and 676 transitions. Second operand 13 states. [2020-10-13 06:02:04,388 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:02:04,610 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:02:05,497 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-13 06:02:05,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:05,809 INFO L93 Difference]: Finished difference Result 1170 states and 1386 transitions. [2020-10-13 06:02:05,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:02:05,810 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 190 [2020-10-13 06:02:05,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:05,813 INFO L225 Difference]: With dead ends: 1170 [2020-10-13 06:02:05,813 INFO L226 Difference]: Without dead ends: 630 [2020-10-13 06:02:05,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:02:05,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-10-13 06:02:05,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 589. [2020-10-13 06:02:05,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-13 06:02:05,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 676 transitions. [2020-10-13 06:02:05,836 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 676 transitions. Word has length 190 [2020-10-13 06:02:05,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:05,837 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 676 transitions. [2020-10-13 06:02:05,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:05,837 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 676 transitions. [2020-10-13 06:02:05,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-13 06:02:05,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:05,841 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:05,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:02:05,842 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:05,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:05,842 INFO L82 PathProgramCache]: Analyzing trace with hash 942464025, now seen corresponding path program 1 times [2020-10-13 06:02:05,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:05,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052551062] [2020-10-13 06:02:05,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:06,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:06,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:08,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:08,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-13 06:02:08,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:02:08,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2776 [2020-10-13 06:02:08,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:08,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:08,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:02:08,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:02:08,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:09,032 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:02:09,161 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:02:09,493 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 35 [2020-10-13 06:02:09,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:09,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:09,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:09,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:09,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:09,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:09,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:09,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:09,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:09,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:09,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:09,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:09,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:09,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:09,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:02:09,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:09,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:09,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:09,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:09,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:09,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:02:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:09,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:09,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:09,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:02:09,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:09,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:02:09,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:09,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:09,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:09,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:09,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:09,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:02:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:09,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:09,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:09,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:02:09,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:09,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:02:09,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:09,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:09,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:09,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:02:09,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:02:09,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052551062] [2020-10-13 06:02:09,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:09,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:09,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936212888] [2020-10-13 06:02:09,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:09,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:09,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:09,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:09,933 INFO L87 Difference]: Start difference. First operand 589 states and 676 transitions. Second operand 13 states. [2020-10-13 06:02:10,411 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:02:10,757 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 06:02:11,029 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 06:02:11,508 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:02:11,740 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 06:02:12,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:12,070 INFO L93 Difference]: Finished difference Result 1175 states and 1391 transitions. [2020-10-13 06:02:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:02:12,075 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 208 [2020-10-13 06:02:12,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:12,079 INFO L225 Difference]: With dead ends: 1175 [2020-10-13 06:02:12,079 INFO L226 Difference]: Without dead ends: 635 [2020-10-13 06:02:12,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:02:12,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2020-10-13 06:02:12,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 589. [2020-10-13 06:02:12,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-13 06:02:12,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 675 transitions. [2020-10-13 06:02:12,110 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 675 transitions. Word has length 208 [2020-10-13 06:02:12,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:12,110 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 675 transitions. [2020-10-13 06:02:12,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:12,110 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 675 transitions. [2020-10-13 06:02:12,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-13 06:02:12,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:12,114 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:02:12,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:02:12,115 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:12,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:12,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1008669934, now seen corresponding path program 1 times [2020-10-13 06:02:12,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:12,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411013565] [2020-10-13 06:02:12,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:12,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:12,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:12,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:12,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:13,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:13,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-13 06:02:13,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:02:13,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1426 [2020-10-13 06:02:13,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:02:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:02:13,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:13,987 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:02:14,129 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-13 06:02:14,255 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2020-10-13 06:02:14,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:14,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:14,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:14,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:14,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:14,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:14,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:14,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:14,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:14,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:14,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:14,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:14,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:14,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:14,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:14,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:14,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:14,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:14,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:14,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:14,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:14,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:14,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:14,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:14,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:14,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:14,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:14,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:02:14,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:02:14,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:14,851 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:02:14,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411013565] [2020-10-13 06:02:14,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:14,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:14,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116399702] [2020-10-13 06:02:14,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:14,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:14,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:14,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:14,853 INFO L87 Difference]: Start difference. First operand 589 states and 675 transitions. Second operand 13 states. [2020-10-13 06:02:15,662 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:02:15,978 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:02:16,287 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:02:16,897 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:02:17,218 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:02:17,518 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:02:17,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:17,928 INFO L93 Difference]: Finished difference Result 1176 states and 1394 transitions. [2020-10-13 06:02:17,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:02:17,931 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 220 [2020-10-13 06:02:17,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:17,934 INFO L225 Difference]: With dead ends: 1176 [2020-10-13 06:02:17,935 INFO L226 Difference]: Without dead ends: 606 [2020-10-13 06:02:17,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:02:17,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-10-13 06:02:17,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 604. [2020-10-13 06:02:17,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2020-10-13 06:02:17,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 691 transitions. [2020-10-13 06:02:17,957 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 691 transitions. Word has length 220 [2020-10-13 06:02:17,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:17,958 INFO L479 AbstractCegarLoop]: Abstraction has 604 states and 691 transitions. [2020-10-13 06:02:17,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:17,958 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 691 transitions. [2020-10-13 06:02:17,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-13 06:02:17,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:17,962 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, 1] [2020-10-13 06:02:17,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:02:17,962 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:17,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:17,963 INFO L82 PathProgramCache]: Analyzing trace with hash 838075599, now seen corresponding path program 1 times [2020-10-13 06:02:17,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:17,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896540851] [2020-10-13 06:02:17,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:18,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:18,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:18,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:18,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:19,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:20,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:20,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-13 06:02:20,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:02:20,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2059 [2020-10-13 06:02:20,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:20,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:20,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:02:20,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:02:20,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:20,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:20,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:20,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:20,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:20,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:20,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:20,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:20,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:20,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:20,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:20,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:20,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:02:20,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:20,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:20,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:20,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:20,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:20,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:20,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:20,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:02:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:20,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:20,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:20,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:02:20,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:20,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:20,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:20,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:20,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:20,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:20,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:20,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:02:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:20,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:20,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:20,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:02:20,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:20,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:02:20,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:20,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:20,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:20,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:02:20,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:20,375 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 06:02:20,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896540851] [2020-10-13 06:02:20,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:20,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:20,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738936041] [2020-10-13 06:02:20,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:20,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:20,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:20,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:20,378 INFO L87 Difference]: Start difference. First operand 604 states and 691 transitions. Second operand 5 states. [2020-10-13 06:02:21,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:21,360 INFO L93 Difference]: Finished difference Result 1228 states and 1459 transitions. [2020-10-13 06:02:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:21,363 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 222 [2020-10-13 06:02:21,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:21,366 INFO L225 Difference]: With dead ends: 1228 [2020-10-13 06:02:21,366 INFO L226 Difference]: Without dead ends: 271 [2020-10-13 06:02:21,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:21,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-13 06:02:21,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-13 06:02:21,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 06:02:21,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 302 transitions. [2020-10-13 06:02:21,377 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 302 transitions. Word has length 222 [2020-10-13 06:02:21,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:21,378 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 302 transitions. [2020-10-13 06:02:21,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:21,378 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 302 transitions. [2020-10-13 06:02:21,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-13 06:02:21,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:21,380 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:21,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:02:21,380 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:21,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:21,381 INFO L82 PathProgramCache]: Analyzing trace with hash -272702893, now seen corresponding path program 1 times [2020-10-13 06:02:21,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:21,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208811641] [2020-10-13 06:02:21,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:21,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:21,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:22,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:23,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-10-13 06:02:25,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:02:25,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4108 [2020-10-13 06:02:25,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:02:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:02:25,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:25,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:25,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:25,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:02:25,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:25,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:25,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:25,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:25,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:25,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:25,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:25,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:25,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:25,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:25,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:25,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:26,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:26,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:26,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:26,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:02:26,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:26,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:26,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:26,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:02:26,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:26,139 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:02:26,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208811641] [2020-10-13 06:02:26,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:26,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:26,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034809421] [2020-10-13 06:02:26,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:26,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:26,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:26,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:26,142 INFO L87 Difference]: Start difference. First operand 271 states and 302 transitions. Second operand 13 states. [2020-10-13 06:02:26,838 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-13 06:02:27,080 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:02:27,306 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:02:27,531 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:02:27,885 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:02:28,195 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:02:28,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:28,792 INFO L93 Difference]: Finished difference Result 551 states and 646 transitions. [2020-10-13 06:02:28,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:02:28,799 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 233 [2020-10-13 06:02:28,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:28,801 INFO L225 Difference]: With dead ends: 551 [2020-10-13 06:02:28,801 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:02:28,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:02:28,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:02:28,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:02:28,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:02:28,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 383 transitions. [2020-10-13 06:02:28,816 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 383 transitions. Word has length 233 [2020-10-13 06:02:28,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:28,816 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 383 transitions. [2020-10-13 06:02:28,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:28,816 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 383 transitions. [2020-10-13 06:02:28,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-13 06:02:28,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:28,818 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:02:28,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:02:28,819 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:28,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:28,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1351556966, now seen corresponding path program 1 times [2020-10-13 06:02:28,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:28,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984180750] [2020-10-13 06:02:28,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:28,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:29,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:29,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:29,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-13 06:02:29,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:29,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-13 06:02:29,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:29,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:29,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 06:02:29,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:02:29,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:29,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:29,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:29,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:29,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:29,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:29,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:29,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:29,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:29,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:29,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:29,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:29,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:29,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:29,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:29,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:29,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:29,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:29,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:29,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:29,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:29,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:29,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:29,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:29,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:29,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:29,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:29,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:29,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:29,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:29,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:29,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:29,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:29,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:29,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:29,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:29,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:29,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:29,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:29,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:29,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:29,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:29,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:02:29,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:29,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:29,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 06:02:29,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:29,428 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 132 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-13 06:02:29,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984180750] [2020-10-13 06:02:29,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:29,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:29,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074828296] [2020-10-13 06:02:29,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:29,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:29,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:29,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:29,439 INFO L87 Difference]: Start difference. First operand 346 states and 383 transitions. Second operand 5 states. [2020-10-13 06:02:30,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:30,308 INFO L93 Difference]: Finished difference Result 708 states and 817 transitions. [2020-10-13 06:02:30,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:30,308 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 245 [2020-10-13 06:02:30,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:30,311 INFO L225 Difference]: With dead ends: 708 [2020-10-13 06:02:30,311 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:02:30,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:30,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:02:30,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:02:30,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:02:30,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 381 transitions. [2020-10-13 06:02:30,322 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 381 transitions. Word has length 245 [2020-10-13 06:02:30,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:30,323 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 381 transitions. [2020-10-13 06:02:30,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:30,323 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 381 transitions. [2020-10-13 06:02:30,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-13 06:02:30,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:30,325 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:02:30,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:02:30,325 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:30,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:30,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1621196554, now seen corresponding path program 1 times [2020-10-13 06:02:30,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:30,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729443701] [2020-10-13 06:02:30,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:30,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:30,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:31,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:31,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-13 06:02:31,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:31,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 980 [2020-10-13 06:02:31,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:31,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:31,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:02:31,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:02:31,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:31,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:31,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:31,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:31,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:31,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:31,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:31,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:31,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:31,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:31,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:31,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:31,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:31,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:31,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:31,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:31,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:31,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:02:31,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:31,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:31,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:31,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:31,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:31,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:31,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:31,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:31,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:31,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:31,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:02:31,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:31,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:31,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:31,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:31,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:31,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:31,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:31,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:31,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:31,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:31,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:02:31,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:31,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:31,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:31,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:31,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:31,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:31,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:31,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:31,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:31,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:31,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:02:31,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:02:31,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:32,135 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-13 06:02:32,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [729443701] [2020-10-13 06:02:32,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:32,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:32,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499363523] [2020-10-13 06:02:32,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:32,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:32,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:32,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:32,137 INFO L87 Difference]: Start difference. First operand 346 states and 381 transitions. Second operand 13 states. [2020-10-13 06:02:33,068 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 06:02:33,383 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-10-13 06:02:33,697 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2020-10-13 06:02:33,953 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2020-10-13 06:02:34,319 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-13 06:02:34,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:34,660 INFO L93 Difference]: Finished difference Result 698 states and 802 transitions. [2020-10-13 06:02:34,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:02:34,661 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 248 [2020-10-13 06:02:34,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:34,664 INFO L225 Difference]: With dead ends: 698 [2020-10-13 06:02:34,664 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:02:34,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:02:34,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:02:34,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:02:34,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:02:34,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 460 transitions. [2020-10-13 06:02:34,676 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 460 transitions. Word has length 248 [2020-10-13 06:02:34,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:34,677 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 460 transitions. [2020-10-13 06:02:34,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:34,677 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 460 transitions. [2020-10-13 06:02:34,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-13 06:02:34,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:34,679 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:02:34,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:02:34,680 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:34,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:34,680 INFO L82 PathProgramCache]: Analyzing trace with hash 51350790, now seen corresponding path program 1 times [2020-10-13 06:02:34,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:34,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195323155] [2020-10-13 06:02:34,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:34,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:34,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:35,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:35,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-13 06:02:35,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:35,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 521 [2020-10-13 06:02:35,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:35,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:35,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:02:35,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:02:35,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:35,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:35,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:35,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:35,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:35,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:35,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:35,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:35,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:35,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:35,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:35,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:35,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:35,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:35,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:35,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:02:35,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:35,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:35,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:35,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:35,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:35,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:35,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:35,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:35,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:35,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:35,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:35,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:35,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:35,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:35,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:35,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:35,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:35,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:35,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:35,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:35,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:35,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:35,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:35,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:35,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:35,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:35,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:35,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:02:35,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:35,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:35,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:02:35,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:35,551 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 137 proven. 4 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 06:02:35,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195323155] [2020-10-13 06:02:35,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:35,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:35,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824724154] [2020-10-13 06:02:35,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:35,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:35,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:35,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:35,553 INFO L87 Difference]: Start difference. First operand 418 states and 460 transitions. Second operand 5 states. [2020-10-13 06:02:36,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:36,406 INFO L93 Difference]: Finished difference Result 851 states and 970 transitions. [2020-10-13 06:02:36,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:36,407 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 250 [2020-10-13 06:02:36,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:36,409 INFO L225 Difference]: With dead ends: 851 [2020-10-13 06:02:36,410 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:02:36,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:36,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:02:36,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:02:36,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:02:36,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 458 transitions. [2020-10-13 06:02:36,423 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 458 transitions. Word has length 250 [2020-10-13 06:02:36,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:36,424 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 458 transitions. [2020-10-13 06:02:36,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:36,424 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 458 transitions. [2020-10-13 06:02:36,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-13 06:02:36,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:36,426 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:36,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:02:36,427 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:36,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:36,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1106754701, now seen corresponding path program 1 times [2020-10-13 06:02:36,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:36,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705746720] [2020-10-13 06:02:36,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:36,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:36,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:37,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:37,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-13 06:02:37,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:37,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 528 [2020-10-13 06:02:37,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:37,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:37,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:02:37,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:02:37,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:37,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:37,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:37,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:37,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:37,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:37,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:37,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:37,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:37,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:37,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:37,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:37,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:37,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:37,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:02:37,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:37,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:37,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:37,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:37,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:37,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:37,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:37,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:37,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:37,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:37,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:37,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:37,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:37,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:37,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:37,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:37,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:37,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:37,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:37,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:37,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:37,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:37,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:37,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:37,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:37,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:37,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:37,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:37,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:37,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:37,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:37,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:37,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:02:37,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:37,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:37,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:37,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:37,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:37,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:02:37,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:37,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:02:37,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:37,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:37,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:37,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:02:37,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:37,470 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-13 06:02:37,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705746720] [2020-10-13 06:02:37,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:37,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:02:37,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261576938] [2020-10-13 06:02:37,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:02:37,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:37,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:02:37,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:37,472 INFO L87 Difference]: Start difference. First operand 418 states and 458 transitions. Second operand 6 states. [2020-10-13 06:02:38,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:38,446 INFO L93 Difference]: Finished difference Result 849 states and 963 transitions. [2020-10-13 06:02:38,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:38,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 268 [2020-10-13 06:02:38,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:38,450 INFO L225 Difference]: With dead ends: 849 [2020-10-13 06:02:38,450 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:02:38,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:02:38,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:02:38,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:02:38,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:02:38,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 456 transitions. [2020-10-13 06:02:38,463 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 456 transitions. Word has length 268 [2020-10-13 06:02:38,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:38,464 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 456 transitions. [2020-10-13 06:02:38,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:02:38,464 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 456 transitions. [2020-10-13 06:02:38,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-13 06:02:38,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:38,466 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:38,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:02:38,467 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:38,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:38,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1739324602, now seen corresponding path program 1 times [2020-10-13 06:02:38,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:38,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580042459] [2020-10-13 06:02:38,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:38,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:38,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:39,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:39,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-10-13 06:02:39,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:39,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 555 [2020-10-13 06:02:39,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:39,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:39,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:02:39,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:02:39,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:39,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:39,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:39,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:39,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:39,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:39,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:39,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:39,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:39,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:39,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:39,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:39,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:39,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:39,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:39,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:39,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:39,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:02:39,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:39,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:39,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:39,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:39,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:39,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:39,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:39,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:39,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:39,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:39,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:39,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:39,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:39,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:39,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:39,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:39,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:39,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:39,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:39,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:39,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:39,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:39,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:39,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:39,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:39,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:39,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:39,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:39,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:39,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:39,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:02:39,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:39,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:02:39,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:02:39,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:39,435 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 154 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-13 06:02:39,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580042459] [2020-10-13 06:02:39,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:39,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:39,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146709038] [2020-10-13 06:02:39,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:39,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:39,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:39,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:39,437 INFO L87 Difference]: Start difference. First operand 418 states and 456 transitions. Second operand 5 states. [2020-10-13 06:02:40,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:40,281 INFO L93 Difference]: Finished difference Result 853 states and 962 transitions. [2020-10-13 06:02:40,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:40,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 267 [2020-10-13 06:02:40,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:40,284 INFO L225 Difference]: With dead ends: 853 [2020-10-13 06:02:40,284 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:02:40,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:40,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:02:40,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:02:40,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:02:40,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 454 transitions. [2020-10-13 06:02:40,298 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 454 transitions. Word has length 267 [2020-10-13 06:02:40,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:40,298 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 454 transitions. [2020-10-13 06:02:40,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:40,298 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 454 transitions. [2020-10-13 06:02:40,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-10-13 06:02:40,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:40,301 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:40,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:02:40,301 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:40,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:40,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1442774121, now seen corresponding path program 1 times [2020-10-13 06:02:40,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:40,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161412461] [2020-10-13 06:02:40,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:40,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:40,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:40,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:41,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:41,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 295 [2020-10-13 06:02:41,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:41,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1381 [2020-10-13 06:02:41,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:41,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:41,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:02:41,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:02:41,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:41,919 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 31 [2020-10-13 06:02:42,047 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 29 [2020-10-13 06:02:42,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:42,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:42,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:42,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:42,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:42,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:42,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:42,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:42,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:42,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:42,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:42,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:42,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:42,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:42,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:42,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:42,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:02:42,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:42,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:42,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:42,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:42,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:42,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:42,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:42,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:42,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:42,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:42,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:42,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:42,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:42,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:42,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:42,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:42,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:42,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:42,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:42,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:42,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:42,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:42,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:42,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:42,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:42,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:42,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:42,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:42,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:42,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:42,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:42,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:42,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:42,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:42,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:42,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:42,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:42,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:42,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:42,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:42,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:42,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:02:42,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:42,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:02:42,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:02:42,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:42,633 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-10-13 06:02:42,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161412461] [2020-10-13 06:02:42,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:42,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:42,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980313435] [2020-10-13 06:02:42,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:42,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:42,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:42,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:42,635 INFO L87 Difference]: Start difference. First operand 418 states and 454 transitions. Second operand 13 states. [2020-10-13 06:02:43,399 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-13 06:02:43,737 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2020-10-13 06:02:43,999 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2020-10-13 06:02:44,287 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-13 06:02:44,581 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2020-10-13 06:02:44,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:44,853 INFO L93 Difference]: Finished difference Result 835 states and 937 transitions. [2020-10-13 06:02:44,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:02:44,853 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 277 [2020-10-13 06:02:44,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:44,857 INFO L225 Difference]: With dead ends: 835 [2020-10-13 06:02:44,857 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:02:44,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:02:44,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:02:44,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:02:44,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:02:44,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:02:44,871 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 277 [2020-10-13 06:02:44,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:44,871 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:02:44,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:44,872 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:02:44,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-10-13 06:02:44,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:44,874 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-13 06:02:44,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:02:44,875 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:44,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:44,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1532819646, now seen corresponding path program 1 times [2020-10-13 06:02:44,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:44,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502706158] [2020-10-13 06:02:44,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:44,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-13 06:02:45,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:45,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-10-13 06:02:45,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-13 06:02:45,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:02:45,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:45,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:45,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:45,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:45,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:45,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:45,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:45,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:45,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:45,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:45,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:45,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:45,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:45,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:45,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:45,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:45,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:45,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:45,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 06:02:45,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:45,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:02:45,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:45,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:45,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:45,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:02:45,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:45,847 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 173 proven. 4 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2020-10-13 06:02:45,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502706158] [2020-10-13 06:02:45,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:45,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:02:45,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449048829] [2020-10-13 06:02:45,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:02:45,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:45,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:02:45,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:45,849 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 6 states. [2020-10-13 06:02:46,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:46,790 INFO L93 Difference]: Finished difference Result 984 states and 1109 transitions. [2020-10-13 06:02:46,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:46,791 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 286 [2020-10-13 06:02:46,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:46,794 INFO L225 Difference]: With dead ends: 984 [2020-10-13 06:02:46,794 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:02:46,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:02:46,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:02:46,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:02:46,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:02:46,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:02:46,807 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 286 [2020-10-13 06:02:46,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:46,808 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:02:46,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:02:46,808 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:02:46,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-10-13 06:02:46,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:46,811 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, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:46,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:02:46,811 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:46,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:46,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1805325893, now seen corresponding path program 1 times [2020-10-13 06:02:46,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:46,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705839653] [2020-10-13 06:02:46,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:46,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:47,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-13 06:02:47,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:47,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-10-13 06:02:47,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:47,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:47,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:02:47,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:02:47,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:47,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:47,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:47,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:47,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:47,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:47,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:47,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:47,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:47,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:47,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:47,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:47,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:47,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:47,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:47,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:47,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:47,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:47,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:47,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:47,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:47,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:47,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:47,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:47,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:47,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:47,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:47,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:47,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:47,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:47,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:47,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:47,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:47,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:47,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:47,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:47,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:47,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:47,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:47,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:47,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:47,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:47,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:47,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:47,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:47,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:47,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:47,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:47,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:47,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:02:47,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:47,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:02:47,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:47,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:47,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:47,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:02:47,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:47,781 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-13 06:02:47,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705839653] [2020-10-13 06:02:47,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:47,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:47,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063874176] [2020-10-13 06:02:47,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:47,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:47,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:47,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:47,782 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 5 states. [2020-10-13 06:02:48,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:48,545 INFO L93 Difference]: Finished difference Result 978 states and 1098 transitions. [2020-10-13 06:02:48,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:48,547 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 291 [2020-10-13 06:02:48,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:48,550 INFO L225 Difference]: With dead ends: 978 [2020-10-13 06:02:48,550 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:02:48,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:48,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:02:48,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:02:48,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:02:48,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 525 transitions. [2020-10-13 06:02:48,563 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 525 transitions. Word has length 291 [2020-10-13 06:02:48,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:48,563 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 525 transitions. [2020-10-13 06:02:48,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:48,563 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 525 transitions. [2020-10-13 06:02:48,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-13 06:02:48,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:48,566 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, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-13 06:02:48,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:02:48,566 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:48,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:48,567 INFO L82 PathProgramCache]: Analyzing trace with hash -775843601, now seen corresponding path program 1 times [2020-10-13 06:02:48,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:48,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806140677] [2020-10-13 06:02:48,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:48,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:48,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:49,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:50,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:50,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-10-13 06:02:50,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:50,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2004 [2020-10-13 06:02:50,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-13 06:02:50,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:02:50,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:51,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:51,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:51,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:51,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:51,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:51,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:51,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:51,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:51,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:51,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:51,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:51,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:51,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:51,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:51,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:51,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:51,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:51,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:51,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:51,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:51,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:51,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:51,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:51,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:51,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:51,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:51,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:51,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:51,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:51,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:51,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:51,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:51,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:51,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:51,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:51,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:51,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:51,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:51,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:51,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:51,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:51,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:51,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:51,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:51,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:51,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:51,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:51,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:51,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:51,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:51,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:51,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:51,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:51,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:51,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:51,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:02:51,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:51,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:02:51,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:51,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:51,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:51,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 06:02:51,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:51,322 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 183 proven. 5 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-10-13 06:02:51,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806140677] [2020-10-13 06:02:51,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:51,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:02:51,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592899238] [2020-10-13 06:02:51,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:02:51,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:51,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:02:51,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:02:51,324 INFO L87 Difference]: Start difference. First operand 483 states and 525 transitions. Second operand 13 states. [2020-10-13 06:02:52,220 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:02:52,446 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:02:52,697 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:02:52,904 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:02:53,247 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:02:53,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:53,626 INFO L93 Difference]: Finished difference Result 962 states and 1072 transitions. [2020-10-13 06:02:53,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:02:53,627 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 297 [2020-10-13 06:02:53,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:53,630 INFO L225 Difference]: With dead ends: 962 [2020-10-13 06:02:53,630 INFO L226 Difference]: Without dead ends: 545 [2020-10-13 06:02:53,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:02:53,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-13 06:02:53,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2020-10-13 06:02:53,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:02:53,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 589 transitions. [2020-10-13 06:02:53,648 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 589 transitions. Word has length 297 [2020-10-13 06:02:53,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:53,649 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 589 transitions. [2020-10-13 06:02:53,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:53,649 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 589 transitions. [2020-10-13 06:02:53,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-13 06:02:53,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:53,652 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:53,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:02:53,652 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:53,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:53,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1741424590, now seen corresponding path program 1 times [2020-10-13 06:02:53,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:53,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986703746] [2020-10-13 06:02:53,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:53,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:54,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:54,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:54,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-13 06:02:54,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:54,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-10-13 06:02:54,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:54,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:54,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:02:54,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:02:54,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:54,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:54,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:54,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:54,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:54,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:54,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:54,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:54,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:54,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:54,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:54,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:54,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:54,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:54,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:54,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:54,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:54,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:02:54,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:54,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:54,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:54,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:54,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:54,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:54,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:54,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:54,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:54,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:54,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:54,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:54,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:54,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:54,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:54,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:54,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:54,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:54,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:54,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:54,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:54,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:54,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:54,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:54,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:54,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:54,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:54,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:54,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:54,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:54,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:54,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:54,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:54,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:54,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:54,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:54,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:02:54,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:54,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:54,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:54,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:54,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:54,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:54,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:54,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:02:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:54,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:54,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:54,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:02:54,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:54,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:02:54,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:54,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:54,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:54,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:02:54,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:54,578 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-13 06:02:54,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986703746] [2020-10-13 06:02:54,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:54,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:54,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456028568] [2020-10-13 06:02:54,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:54,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:54,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:54,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:54,580 INFO L87 Difference]: Start difference. First operand 539 states and 589 transitions. Second operand 5 states. [2020-10-13 06:02:55,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:55,347 INFO L93 Difference]: Finished difference Result 1088 states and 1221 transitions. [2020-10-13 06:02:55,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:55,348 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 302 [2020-10-13 06:02:55,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:55,350 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:02:55,350 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:02:55,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:55,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:02:55,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-13 06:02:55,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:02:55,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 587 transitions. [2020-10-13 06:02:55,363 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 587 transitions. Word has length 302 [2020-10-13 06:02:55,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:55,363 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 587 transitions. [2020-10-13 06:02:55,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:55,363 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 587 transitions. [2020-10-13 06:02:55,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-13 06:02:55,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:55,366 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:55,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:02:55,367 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:55,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:55,367 INFO L82 PathProgramCache]: Analyzing trace with hash 947778710, now seen corresponding path program 1 times [2020-10-13 06:02:55,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:55,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704593293] [2020-10-13 06:02:55,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-13 06:02:55,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:55,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-13 06:02:55,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:02:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:02:55,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:55,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:55,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:55,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:02:55,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:55,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:55,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:55,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:55,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:55,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:02:55,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:55,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:55,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:55,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:02:55,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:55,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:55,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:55,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:55,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:55,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:55,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:55,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:55,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:55,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:55,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:55,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:55,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:02:55,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:55,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 06:02:55,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:02:55,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-13 06:02:56,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704593293] [2020-10-13 06:02:56,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:56,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:56,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634259374] [2020-10-13 06:02:56,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:56,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:56,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:56,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:56,111 INFO L87 Difference]: Start difference. First operand 539 states and 587 transitions. Second operand 5 states. [2020-10-13 06:02:56,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:56,911 INFO L93 Difference]: Finished difference Result 1097 states and 1224 transitions. [2020-10-13 06:02:56,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:56,912 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 306 [2020-10-13 06:02:56,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:56,915 INFO L225 Difference]: With dead ends: 1097 [2020-10-13 06:02:56,915 INFO L226 Difference]: Without dead ends: 481 [2020-10-13 06:02:56,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:56,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-13 06:02:56,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-13 06:02:56,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 06:02:56,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 526 transitions. [2020-10-13 06:02:56,927 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 526 transitions. Word has length 306 [2020-10-13 06:02:56,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:56,927 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 526 transitions. [2020-10-13 06:02:56,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:56,927 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 526 transitions. [2020-10-13 06:02:56,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-13 06:02:56,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:56,930 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 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] [2020-10-13 06:02:56,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:02:56,931 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:56,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:56,931 INFO L82 PathProgramCache]: Analyzing trace with hash 786315382, now seen corresponding path program 1 times [2020-10-13 06:02:56,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:56,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1515348180] [2020-10-13 06:02:56,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:57,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:57,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:57,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:58,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:59,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:59,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-13 06:02:59,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:02:59,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2495 [2020-10-13 06:02:59,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:59,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:02:59,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 06:02:59,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:02:59,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:00,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:00,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:00,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:00,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:00,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:00,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:00,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:00,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:00,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:00,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:00,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:00,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:00,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:00,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:00,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:00,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:00,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:00,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:03:00,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:00,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:00,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:00,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:03:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:00,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:00,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:00,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 06:03:00,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:00,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:03:00,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:00,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:00,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:00,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:03:00,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:00,487 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-10-13 06:03:00,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1515348180] [2020-10-13 06:03:00,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:00,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:00,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743168763] [2020-10-13 06:03:00,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:00,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:00,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:00,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:00,489 INFO L87 Difference]: Start difference. First operand 481 states and 526 transitions. Second operand 13 states. [2020-10-13 06:03:01,090 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 06:03:01,231 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-13 06:03:02,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:02,238 INFO L93 Difference]: Finished difference Result 969 states and 1090 transitions. [2020-10-13 06:03:02,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:03:02,244 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 315 [2020-10-13 06:03:02,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:02,247 INFO L225 Difference]: With dead ends: 969 [2020-10-13 06:03:02,247 INFO L226 Difference]: Without dead ends: 496 [2020-10-13 06:03:02,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:03:02,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-13 06:03:02,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2020-10-13 06:03:02,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:03:02,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:03:02,260 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 315 [2020-10-13 06:03:02,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:02,260 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:03:02,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:02,261 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:03:02,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-13 06:03:02,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:02,263 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:03:02,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:03:02,264 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:02,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:02,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1132608279, now seen corresponding path program 1 times [2020-10-13 06:03:02,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:02,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720153088] [2020-10-13 06:03:02,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:02,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:02,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:02,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:02,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 336 [2020-10-13 06:03:02,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:02,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-13 06:03:02,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:02,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:02,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:03:02,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:03:02,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:03,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:03,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:03,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:03,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:03,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:03,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:03:03,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:03,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:03,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:03,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:03,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:03,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:03,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:03,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:03:03,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:03,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:03,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:03,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:03,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:03,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:03,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:03,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:03,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:03,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:03,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:03:03,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:03,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:03,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:03,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:03,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 06:03:03,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:03,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:03,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:03,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:03,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:03,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:03:03,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:03,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:03,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:03,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:03,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:03,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:03,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:03,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:03:03,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:03,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:03,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:03,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:03,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:03,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:03,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:03,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:03,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:03:03,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:03,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 06:03:03,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:03:03,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:03:03,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720153088] [2020-10-13 06:03:03,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:03,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:03:03,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569322475] [2020-10-13 06:03:03,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:03:03,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:03,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:03:03,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:03:03,572 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 5 states. [2020-10-13 06:03:04,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:04,389 INFO L93 Difference]: Finished difference Result 980 states and 1104 transitions. [2020-10-13 06:03:04,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:04,390 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 318 [2020-10-13 06:03:04,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:04,393 INFO L225 Difference]: With dead ends: 980 [2020-10-13 06:03:04,393 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:03:04,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:03:04,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:03:04,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:03:04,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:03:04,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:03:04,406 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 318 [2020-10-13 06:03:04,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:04,406 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:03:04,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:03:04,406 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:03:04,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-13 06:03:04,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:04,409 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 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] [2020-10-13 06:03:04,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:03:04,410 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:04,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:04,410 INFO L82 PathProgramCache]: Analyzing trace with hash 2078685406, now seen corresponding path program 1 times [2020-10-13 06:03:04,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:04,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504361116] [2020-10-13 06:03:04,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:04,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:04,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:04,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:05,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:06,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:06,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-13 06:03:06,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:06,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2300 [2020-10-13 06:03:06,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:06,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:06,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 06:03:06,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:03:06,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:07,194 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:03:07,362 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:03:07,491 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-13 06:03:07,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:07,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:07,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:07,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:07,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:07,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:07,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:07,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:07,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:07,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:07,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:07,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:07,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:07,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:07,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:07,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:07,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:07,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:07,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:07,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:07,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:07,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:07,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:07,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:07,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:07,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:07,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:07,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:07,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:07,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:07,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:07,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:07,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:07,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:07,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:07,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:07,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:07,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:07,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:07,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:07,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:07,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:07,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:07,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:07,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:07,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:07,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:07,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:07,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:07,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:07,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:07,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:07,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:03:07,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:07,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:07,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:07,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:07,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:03:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:07,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:07,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:07,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:03:07,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:07,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:03:07,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:07,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:07,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:03:07,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:08,177 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 205 proven. 6 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-13 06:03:08,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504361116] [2020-10-13 06:03:08,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:08,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:08,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418131260] [2020-10-13 06:03:08,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:08,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:08,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:08,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:08,179 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 13 states. [2020-10-13 06:03:08,978 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:03:09,358 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:03:09,694 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:03:10,040 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:03:10,304 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:03:10,611 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:03:10,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:10,953 INFO L93 Difference]: Finished difference Result 956 states and 1072 transitions. [2020-10-13 06:03:10,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:03:10,954 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 320 [2020-10-13 06:03:10,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:10,957 INFO L225 Difference]: With dead ends: 956 [2020-10-13 06:03:10,957 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:03:10,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:03:10,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:03:10,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-13 06:03:10,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:03:10,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 591 transitions. [2020-10-13 06:03:10,971 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 591 transitions. Word has length 320 [2020-10-13 06:03:10,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:10,971 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 591 transitions. [2020-10-13 06:03:10,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:10,971 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 591 transitions. [2020-10-13 06:03:10,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-10-13 06:03:10,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:10,974 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 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, 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] [2020-10-13 06:03:10,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 06:03:10,974 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:10,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:10,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1479242346, now seen corresponding path program 1 times [2020-10-13 06:03:10,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:10,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285228343] [2020-10-13 06:03:10,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:11,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:11,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:11,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:12,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:13,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-10-13 06:03:13,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:13,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1987 [2020-10-13 06:03:13,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:13,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:03:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:03:13,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:13,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:13,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:13,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:13,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:13,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:13,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:13,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:13,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:13,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:13,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:13,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:13,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:13,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:13,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:13,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:13,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:13,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:13,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:13,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:13,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:13,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:13,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:13,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:13,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:13,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:13,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:13,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:13,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:13,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:13,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:13,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:13,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:13,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:13,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:13,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:13,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:13,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:13,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:13,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:13,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:13,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:13,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:13,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:13,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:13,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:03:13,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:13,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:13,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:13,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:13,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:03:13,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:13,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:03:13,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:13,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:13,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:13,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:13,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:13,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:03:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:13,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:13,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:13,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:03:13,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:13,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:03:13,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:13,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:13,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:13,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:03:13,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:13,463 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 206 proven. 6 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-13 06:03:13,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285228343] [2020-10-13 06:03:13,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:13,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:03:13,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551785455] [2020-10-13 06:03:13,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:03:13,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:13,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:03:13,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:03:13,464 INFO L87 Difference]: Start difference. First operand 537 states and 591 transitions. Second operand 6 states. [2020-10-13 06:03:14,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:14,211 INFO L93 Difference]: Finished difference Result 1083 states and 1222 transitions. [2020-10-13 06:03:14,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:14,212 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 321 [2020-10-13 06:03:14,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:14,216 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 06:03:14,216 INFO L226 Difference]: Without dead ends: 537 [2020-10-13 06:03:14,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:14,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-13 06:03:14,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2020-10-13 06:03:14,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:03:14,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 588 transitions. [2020-10-13 06:03:14,230 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 588 transitions. Word has length 321 [2020-10-13 06:03:14,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:14,230 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 588 transitions. [2020-10-13 06:03:14,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:03:14,230 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 588 transitions. [2020-10-13 06:03:14,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-13 06:03:14,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:14,233 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2020-10-13 06:03:14,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 06:03:14,234 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:14,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:14,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1986907045, now seen corresponding path program 1 times [2020-10-13 06:03:14,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:14,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453257602] [2020-10-13 06:03:14,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:14,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:14,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:14,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:15,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:15,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-13 06:03:15,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:15,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1018 [2020-10-13 06:03:15,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:15,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 06:03:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 06:03:15,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:15,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:15,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:15,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:15,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:15,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:15,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:15,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:15,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:15,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:15,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:15,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:15,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:15,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:15,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:15,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:15,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:15,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:15,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:15,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:15,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:15,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:15,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:15,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:15,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:15,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:15,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:15,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:15,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:15,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:15,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:15,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:15,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:15,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:15,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:15,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:15,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:15,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:15,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:15,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:15,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:15,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:15,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:15,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:15,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:15,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:15,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:15,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:15,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:15,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:15,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:15,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:15,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:15,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:15,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:15,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:15,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:15,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:03:15,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:15,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 06:03:15,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:15,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:15,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:15,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:03:15,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:15,808 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 206 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:03:15,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453257602] [2020-10-13 06:03:15,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:15,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:03:15,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134934957] [2020-10-13 06:03:15,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:03:15,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:15,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:03:15,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:03:15,809 INFO L87 Difference]: Start difference. First operand 537 states and 588 transitions. Second operand 5 states. [2020-10-13 06:03:16,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:16,606 INFO L93 Difference]: Finished difference Result 1085 states and 1217 transitions. [2020-10-13 06:03:16,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:16,607 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 320 [2020-10-13 06:03:16,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:16,610 INFO L225 Difference]: With dead ends: 1085 [2020-10-13 06:03:16,610 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 06:03:16,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:03:16,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 06:03:16,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 06:03:16,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 06:03:16,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 562 transitions. [2020-10-13 06:03:16,622 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 562 transitions. Word has length 320 [2020-10-13 06:03:16,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:16,623 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 562 transitions. [2020-10-13 06:03:16,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:03:16,623 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 562 transitions. [2020-10-13 06:03:16,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-10-13 06:03:16,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:16,625 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-10-13 06:03:16,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 06:03:16,625 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:16,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:16,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1216839758, now seen corresponding path program 1 times [2020-10-13 06:03:16,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:16,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276830009] [2020-10-13 06:03:16,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:16,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:16,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:17,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:17,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 362 [2020-10-13 06:03:17,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:17,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 476 [2020-10-13 06:03:17,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:17,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:17,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:03:17,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:03:17,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:17,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:17,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:17,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:17,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:17,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:17,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:17,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:17,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:17,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:17,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:17,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:17,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:17,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:03:17,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:17,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:03:17,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:17,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:17,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:17,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:17,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:17,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:03:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:17,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:17,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:17,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:03:17,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:17,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:17,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:17,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:17,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:17,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:17,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:17,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:03:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:17,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:17,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:17,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:17,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:17,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:17,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:17,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:17,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:03:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:17,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:17,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:17,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:03:17,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:17,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:17,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:17,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:17,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:17,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:17,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:17,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:03:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:17,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:17,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:17,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:03:17,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:17,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:17,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:17,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:17,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:17,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:17,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:17,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:03:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:17,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:17,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:17,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:03:17,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:17,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:03:17,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:17,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:03:17,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:17,623 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-13 06:03:17,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276830009] [2020-10-13 06:03:17,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:17,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:03:17,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384220427] [2020-10-13 06:03:17,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:03:17,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:17,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:03:17,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:03:17,625 INFO L87 Difference]: Start difference. First operand 514 states and 562 transitions. Second operand 6 states. [2020-10-13 06:03:18,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:18,150 INFO L93 Difference]: Finished difference Result 897 states and 993 transitions. [2020-10-13 06:03:18,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:18,151 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 342 [2020-10-13 06:03:18,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:18,152 INFO L225 Difference]: With dead ends: 897 [2020-10-13 06:03:18,152 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:03:18,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:18,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:03:18,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:03:18,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:03:18,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:03:18,154 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 342 [2020-10-13 06:03:18,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:18,154 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:03:18,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:03:18,155 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:03:18,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:03:18,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 06:03:18,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:03:24,500 WARN L193 SmtUtils]: Spent 5.59 s on a formula simplification. DAG size of input: 341 DAG size of output: 245 [2020-10-13 06:03:26,208 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 183 DAG size of output: 148 [2020-10-13 06:03:27,414 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 158 DAG size of output: 110 [2020-10-13 06:03:27,419 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:03:27,420 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)|)) [2020-10-13 06:03:27,420 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:03:27,420 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:03:27,420 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:03:27,421 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,421 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,421 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,421 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,422 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,422 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,422 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:03:27,422 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:03:27,422 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:03:27,422 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:03:27,422 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:03:27,422 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:03:27,422 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:03:27,422 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:03:27,423 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:03:27,423 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:03:27,423 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,423 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,423 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,423 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,423 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,423 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,423 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:03:27,424 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:03:27,424 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:03:27,424 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:03:27,424 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:03:27,424 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:03:27,424 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:03:27,424 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:03:27,424 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:03:27,424 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:03:27,424 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:03:27,424 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 476) no Hoare annotation was computed. [2020-10-13 06:03:27,424 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:03:27,425 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:03:27,425 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:03:27,425 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:03:27,425 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,425 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,425 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,425 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,425 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,426 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:03:27,426 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:03:27,426 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:03:27,426 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:03:27,426 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:03:27,426 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:03:27,426 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:03:27,426 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:03:27,426 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:03:27,426 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,426 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,426 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,426 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,427 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,427 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:03:27,427 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:03:27,427 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:03:27,427 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:03:27,427 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:03:27,427 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:03:27,427 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:03:27,427 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:03:27,428 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:03:27,428 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:03:27,428 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:03:27,428 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:03:27,428 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:03:27,428 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,428 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,428 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,428 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,428 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,429 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:03:27,429 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:03:27,429 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:03:27,429 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:03:27,429 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:03:27,429 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:03:27,429 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:03:27,429 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:03:27,429 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:03:27,429 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,429 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:03:27,430 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:03:27,431 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:03:27,431 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:03:27,431 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:03:27,431 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:03:27,431 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,431 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,431 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,431 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,431 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,431 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:03:27,431 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:03:27,431 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:03:27,432 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:03:27,432 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:03:27,432 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:03:27,432 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:03:27,432 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:03:27,432 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,432 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,432 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,432 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,433 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,433 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:03:27,433 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:03:27,433 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:03:27,433 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:03:27,433 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:03:27,433 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:03:27,433 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:03:27,433 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:03:27,433 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:03:27,433 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:03:27,434 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse26 (not (<= 1 |calculate_output_#in~input|)))) (let ((.cse16 (= |old(~a21~0)| 1)) (.cse45 (= |old(~a7~0)| 1)) (.cse43 (= |old(~a20~0)| 1)) (.cse44 (= |old(~a17~0)| 1)) (.cse60 (= 5 ~a16~0)) (.cse54 (not (= |calculate_output_#in~input| 3))) (.cse55 (not (= |calculate_output_#in~input| 2))) (.cse56 (not (= |calculate_output_#in~input| 4))) (.cse57 (not (= |calculate_output_#in~input| 5))) (.cse27 (not (= |calculate_output_#in~input| 6))) (.cse50 (= ~a8~0 15)) (.cse25 (not (<= |calculate_output_#in~input| 5))) (.cse66 (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4)))) (.cse63 (not (<= 2 |calculate_output_#in~input|))) (.cse62 (not (<= |calculate_output_#in~input| 6))) (.cse58 (or .cse26 (not (<= |calculate_output_#in~input| 1)))) (.cse67 (= 14 ~a8~0)) (.cse49 (= ~a21~0 1)) (.cse1 (not (<= |old(~a7~0)| 0))) (.cse51 (= ~a21~0 |old(~a21~0)|)) (.cse52 (= ~a8~0 13)) (.cse33 (= ~a16~0 4)) (.cse29 (= ~a7~0 |old(~a7~0)|)) (.cse30 (= ~a17~0 |old(~a17~0)|)) (.cse31 (= ~a20~0 |old(~a20~0)|)) (.cse42 (= ~a16~0 |old(~a16~0)|)) (.cse32 (= ~a8~0 |old(~a8~0)|)) (.cse35 (<= ~a21~0 1)) (.cse36 (<= 1 ~a21~0))) (let ((.cse21 (and .cse29 .cse30 .cse31 .cse42 .cse32 .cse35 .cse36)) (.cse14 (and .cse29 .cse30 .cse51 .cse31 .cse52 .cse33)) (.cse34 (and .cse1 (not (<= 2 |old(~a7~0)|)))) (.cse22 (not (<= 5 |old(~a16~0)|))) (.cse39 (not (<= |old(~a8~0)| 15))) (.cse18 (not (<= |old(~a21~0)| 1))) (.cse19 (not (<= |old(~a20~0)| 1))) (.cse23 (not (<= |old(~a16~0)| 5))) (.cse41 (not (<= 15 |old(~a8~0)|))) (.cse20 (not (<= 1 |old(~a21~0)|))) (.cse37 (<= ~a8~0 15)) (.cse38 (<= 15 ~a8~0)) (.cse2 (not (<= |old(~a17~0)| 0))) (.cse24 (not (<= |old(~a20~0)| 0))) (.cse3 (and .cse29 .cse30 .cse49 .cse31 .cse52 .cse33)) (.cse7 (and .cse30 .cse49 .cse31 .cse67 .cse33 (= ~a17~0 ~a7~0))) (.cse9 (not (= |old(~a7~0)| |old(~a17~0)|))) (.cse40 (and (or .cse25 (not (<= 5 |calculate_output_#in~input|))) .cse66 (or (not (<= |calculate_output_#in~input| 2)) .cse63) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or .cse62 (not (<= 6 |calculate_output_#in~input|))) .cse58)) (.cse59 (not (= 6 |old(~a16~0)|))) (.cse46 (and .cse29 .cse30 .cse49 .cse31 .cse42 .cse50)) (.cse17 (and .cse54 .cse55 .cse56 (not (= |calculate_output_#in~input| 1)) .cse57 .cse27)) (.cse53 (= ~a17~0 1)) (.cse8 (not (= 14 |old(~a8~0)|))) (.cse28 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse61 (and .cse29 .cse30 .cse49 .cse31 .cse67 .cse60)) (.cse47 (not (= 5 |old(~a16~0)|))) (.cse0 (not (= |old(~a8~0)| 13))) (.cse12 (not .cse44)) (.cse64 (= ~a7~0 0)) (.cse10 (not .cse43)) (.cse65 (not (= |old(~a7~0)| 0))) (.cse13 (not .cse45)) (.cse15 (not (= 0 |old(~a20~0)|))) (.cse48 (not (= 15 |old(~a8~0)|))) (.cse4 (not .cse16)) (.cse5 (not (= ~a12~0 8))) (.cse6 (not (= 4 |old(~a16~0)|))) (.cse11 (not (= 0 |old(~a17~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse7 .cse8 .cse9 .cse10 .cse4 .cse5 .cse6 .cse11) (or .cse0 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse5 .cse6) (or .cse1 .cse18 (not (<= 1 |old(~a17~0)|)) (not (<= 13 |old(~a8~0)|)) (not (<= |old(~a17~0)| 1)) (not (<= 1 |old(~a20~0)|)) .cse19 (not (<= |old(~a16~0)| 6)) .cse20 (not (<= |old(~a8~0)| 13)) .cse21 (not (<= 6 |old(~a16~0)|)) .cse5) (or .cse22 (not (<= 14 |old(~a8~0)|)) .cse1 .cse18 .cse23 .cse20 .cse21 (not (<= |old(~a8~0)| 14)) .cse2 .cse5 .cse24) (or .cse0 .cse13 .cse14 .cse10 .cse16 (and (or .cse25 .cse26) .cse27) .cse5 .cse6 .cse11) (or (not (= |old(~a17~0)| |old(~a21~0)|)) .cse12 .cse8 .cse1 .cse28 (and .cse29 .cse30 (= ~a21~0 ~a17~0) .cse31 .cse32 .cse33) .cse5 .cse6) (or (not (<= 4 |old(~a16~0)|)) .cse34 (and .cse29 .cse30 .cse31 (<= ~a16~0 4) (<= 4 ~a16~0) .cse35 .cse36 .cse37 .cse38) .cse39 .cse18 .cse40 .cse41 .cse20 (not (<= |old(~a16~0)| 4)) .cse2 .cse5 .cse19) (or .cse34 .cse22 .cse39 .cse18 .cse2 .cse19 .cse23 .cse41 .cse20 (and .cse29 .cse30 .cse31 .cse42 .cse35 .cse36 .cse37 .cse38) .cse17 .cse5 (not (< 0 |old(~a20~0)|))) (or .cse0 .cse43 .cse44 .cse4 .cse3 .cse5 .cse6 .cse45) (or .cse13 .cse46 .cse2 .cse47 .cse48 .cse4 .cse5 .cse24) (or (and .cse29 .cse31 (or (and .cse49 .cse50 (not (= ~a20~0 1)) (= ~a17~0 0)) (and .cse51 .cse52 .cse33 .cse53)) .cse42) (and (or .cse0 .cse12 (and .cse54 .cse55 .cse56 .cse57 .cse58 .cse27) .cse13 .cse10 .cse5 .cse6) (or .cse43 .cse59 .cse17 .cse48 .cse4 .cse5 .cse45 .cse11))) (or .cse8 (and .cse29 .cse30 .cse49 .cse31 .cse32 .cse33) .cse13 .cse2 .cse4 .cse5 .cse24 .cse6) (or (and .cse29 .cse30 .cse49 .cse31 .cse50 .cse60) .cse47 .cse17 .cse48 .cse4 .cse5 .cse45 .cse11) (or .cse0 .cse40 (and .cse29 .cse30 .cse51 .cse31 .cse42 .cse52) .cse13 .cse59 .cse10 .cse16 .cse5 .cse11) (or .cse0 .cse12 .cse13 .cse10 .cse4 .cse3 .cse5 .cse6) (or .cse8 .cse13 .cse10 .cse61 .cse47 .cse4 .cse5 .cse11) (or .cse0 .cse12 (not (= 0 |old(~a21~0)|)) (and .cse29 .cse30 .cse31 .cse52 (= ~a21~0 0) .cse60) .cse13 .cse10 .cse47 .cse17 .cse5) (or .cse7 .cse8 .cse9 .cse28 .cse4 .cse5 .cse6 .cse11) (or .cse12 .cse40 .cse59 .cse46 .cse15 .cse48 .cse4 .cse5 .cse45) (or .cse40 .cse59 .cse46 .cse10 .cse44 .cse48 .cse4 .cse5 .cse45) (or .cse12 .cse43 (and (or .cse62 (not (< 5 |calculate_output_#in~input|))) .cse58 (or .cse25 .cse63)) (and .cse29 .cse31 .cse49 .cse50 .cse60 .cse53) .cse47 .cse48 .cse4 .cse5 .cse45) (or (and .cse30 .cse49 .cse31 .cse50 .cse60 .cse64) .cse12 .cse47 .cse17 .cse48 .cse4 .cse5 .cse65) (or .cse12 .cse43 (and .cse54 .cse55 .cse66 .cse57 .cse58 .cse27) (and .cse29 .cse49 .cse31 .cse42 .cse50 .cse53) .cse48 .cse4 .cse5 .cse6 .cse45) (or .cse8 .cse28 .cse13 .cse61 .cse47 .cse4 .cse5 .cse11) (or .cse0 .cse12 (and .cse30 .cse49 .cse31 .cse52 .cse33 .cse64) .cse10 .cse4 .cse5 .cse65 .cse6) (or .cse13 .cse15 (and .cse29 .cse30 .cse49 .cse31 .cse50 .cse33) .cse48 .cse4 .cse5 .cse6 .cse11))))) [2020-10-13 06:03:27,434 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:03:27,434 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,434 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:03:27,435 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:03:27,436 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:03:27,437 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:03:27,437 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:03:27,437 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:03:27,437 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:03:27,437 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:03:27,437 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:03:27,437 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,437 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,437 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,437 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,437 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,437 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:03:27,438 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:03:27,438 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:03:27,438 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:03:27,438 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:03:27,438 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:03:27,438 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:03:27,438 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:03:27,438 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:03:27,438 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:03:27,438 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:03:27,439 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:03:27,439 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-13 06:03:27,439 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:03:27,439 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:03:27,439 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 (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-13 06:03:27,439 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:03:27,440 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse34 (<= 1 main_~input~0))) (let ((.cse1 (= ~a7~0 1)) (.cse41 (<= 2 main_~input~0)) (.cse32 (and (<= 6 main_~input~0) (<= main_~input~0 6))) (.cse40 (and (<= main_~input~0 1) .cse34)) (.cse33 (<= main_~input~0 5)) (.cse15 (= 5 main_~input~0)) (.cse16 (= 6 main_~input~0)) (.cse17 (= main_~input~0 4)) (.cse18 (= 3 main_~input~0)) (.cse20 (= 2 main_~input~0)) (.cse6 (= ~a17~0 1)) (.cse7 (= ~a21~0 1)) (.cse36 (<= ~a7~0 0)) (.cse31 (= ~a20~0 1))) (let ((.cse23 (<= ~a16~0 5)) (.cse28 (<= 5 ~a16~0)) (.cse39 (not .cse31)) (.cse19 (= ~a17~0 main_~input~0)) (.cse10 (<= ~a20~0 0)) (.cse22 (<= 1 ~a20~0)) (.cse9 (<= ~a17~0 0)) (.cse24 (or (< 1 ~a7~0) .cse36)) (.cse25 (<= ~a21~0 1)) (.cse26 (<= ~a20~0 1)) (.cse27 (<= 1 ~a21~0)) (.cse29 (<= ~a8~0 15)) (.cse30 (<= 15 ~a8~0)) (.cse13 (= ~a7~0 0)) (.cse3 (not .cse7)) (.cse37 (not .cse6)) (.cse21 (= ~a17~0 ~a7~0)) (.cse42 (= ~a21~0 ~a17~0)) (.cse14 (= ~a20~0 ~a17~0)) (.cse8 (= 14 ~a8~0)) (.cse5 (= ~a16~0 4)) (.cse35 (= ~a17~0 0)) (.cse2 (or .cse15 .cse16 .cse17 .cse18 (= main_~input~0 1) .cse20)) (.cse4 (= ~a8~0 13)) (.cse12 (= 5 ~a16~0)) (.cse0 (= ~a20~0 0)) (.cse43 (= ~a16~0 6)) (.cse44 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and .cse41 (<= main_~input~0 2)) .cse32 (and (<= main_~input~0 3) (<= 3 main_~input~0)) .cse40 (and .cse33 (<= 5 main_~input~0)))) (.cse11 (= ~a8~0 15)) (.cse38 (not .cse1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse1 .cse8 .cse9 .cse5 .cse10) (and (= ~a17~0 |old(~a17~0)|) .cse7 .cse2 .cse11 .cse12 .cse13) (and .cse14 .cse4 (or .cse15 .cse16 .cse17 .cse18 .cse19 .cse20) .cse5 .cse21 .cse6) (and .cse22 .cse23 .cse2 .cse9 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30) (not (= |old(~a20~0)| 1)) (and .cse1 .cse3 .cse4 .cse31 .cse5 (or .cse32 (and .cse33 .cse34)) .cse35) (and .cse7 .cse9 .cse36 .cse4 .cse5) (not (= |old(~a21~0)| 1)) (and .cse7 .cse37 .cse4 .cse5 .cse38 .cse39) (and (<= 14 ~a8~0) (<= ~a8~0 14) .cse23 .cse9 .cse36 .cse25 .cse27 .cse28 .cse10) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and (or .cse32 .cse40 (and .cse33 .cse41)) .cse7 .cse11 .cse38 .cse12 .cse39 .cse6) (and .cse42 (not .cse14) (or .cse15 .cse16 (= ~a16~0 main_~input~0) .cse18 .cse19 .cse20) .cse11 .cse5 .cse38 .cse6) (and .cse7 .cse8 .cse31 .cse5 .cse21 .cse35) (and .cse7 .cse1 .cse9 .cse11 .cse12 .cse10) (and .cse7 .cse1 .cse8 .cse31 .cse12 .cse35) (and .cse7 .cse43 .cse2 .cse11 .cse38 .cse35) (and .cse7 .cse1 .cse4 .cse31 .cse5 .cse6) (and (<= ~a16~0 6) (<= 13 ~a8~0) .cse22 (<= 1 ~a17~0) (<= 6 ~a16~0) .cse36 .cse25 .cse26 (<= ~a17~0 1) .cse27 (<= ~a8~0 13)) (and (<= ~a16~0 4) .cse44 .cse9 (<= 4 ~a16~0) .cse24 .cse25 .cse26 .cse27 .cse29 .cse30) (and .cse7 .cse4 .cse31 .cse5 .cse13 .cse6) (not (= |old(~a17~0)| 1)) (and .cse0 .cse7 .cse1 .cse11 .cse5 .cse35) (and .cse1 .cse43 .cse44 .cse3 .cse4 .cse31 .cse35) (and .cse7 .cse43 .cse37 .cse44 .cse11 .cse31 .cse38) (and .cse14 .cse7 .cse1 .cse8 .cse12 .cse35) (and .cse14 .cse7 .cse8 .cse5 .cse21 .cse35) (and .cse42 .cse14 .cse8 .cse36 .cse5 .cse6) (and .cse7 .cse2 .cse11 .cse38 .cse12 .cse35) (and .cse1 .cse2 .cse4 (= ~a21~0 0) .cse31 .cse12 .cse6) (and .cse0 .cse7 .cse43 .cse44 .cse11 .cse38 .cse6))))) [2020-10-13 06:03:27,440 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:03:27,440 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:03:27,441 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a7~0 1)) (.cse12 (= ~a21~0 1)) (.cse20 (<= ~a7~0 0)) (.cse2 (= ~a20~0 1)) (.cse4 (= ~a17~0 1))) (let ((.cse19 (<= ~a20~0 0)) (.cse21 (not .cse4)) (.cse13 (= ~a16~0 6)) (.cse22 (not .cse2)) (.cse28 (<= 1 ~a20~0)) (.cse23 (<= ~a16~0 5)) (.cse5 (<= ~a17~0 0)) (.cse6 (or (< 1 ~a7~0) .cse20)) (.cse7 (<= ~a21~0 1)) (.cse8 (<= ~a20~0 1)) (.cse9 (<= 1 ~a21~0)) (.cse24 (<= 5 ~a16~0)) (.cse10 (<= ~a8~0 15)) (.cse11 (<= 15 ~a8~0)) (.cse26 (not .cse12)) (.cse3 (= 5 ~a16~0)) (.cse29 (= ~a7~0 0)) (.cse17 (= 14 ~a8~0)) (.cse31 (= ~a21~0 ~a17~0)) (.cse15 (not .cse0)) (.cse30 (= ~a20~0 ~a17~0)) (.cse1 (= ~a8~0 13)) (.cse27 (= ~a17~0 ~a7~0)) (.cse25 (= ~a20~0 0)) (.cse14 (= ~a8~0 15)) (.cse18 (= ~a16~0 4)) (.cse16 (= ~a17~0 0))) (or (and .cse0 .cse1 (= ~a21~0 0) .cse2 .cse3 .cse4) (and (<= ~a16~0 4) .cse5 (<= 4 ~a16~0) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse12 .cse0 .cse17 .cse5 .cse18 .cse19) (not (= |old(~a20~0)| 1)) (and .cse12 .cse5 .cse20 .cse1 .cse18) (not (= |old(~a21~0)| 1)) (and .cse12 .cse21 .cse1 .cse18 .cse15 .cse22) (and .cse12 .cse14 .cse15 .cse3 .cse16) (and (<= 14 ~a8~0) (<= ~a8~0 14) .cse23 .cse5 .cse20 .cse7 .cse9 .cse24 .cse19) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse25 .cse0 .cse26 .cse1 .cse18 .cse4) (and .cse12 .cse17 .cse2 .cse18 .cse27 .cse16) (and .cse12 .cse0 .cse5 .cse14 .cse3 .cse19) (and .cse12 .cse0 .cse17 .cse2 .cse3 .cse16) (and .cse12 .cse13 .cse21 .cse14 .cse2 .cse15) (and .cse0 .cse13 .cse26 .cse1 .cse2 .cse16) (and .cse25 .cse12 .cse13 .cse14 .cse15 .cse4) (and (<= ~a16~0 6) (<= 13 ~a8~0) .cse28 (<= 1 ~a17~0) (<= 6 ~a16~0) .cse20 .cse7 .cse8 (<= ~a17~0 1) .cse9 (<= ~a8~0 13)) (and .cse12 .cse1 .cse2 .cse18 .cse29 .cse4) (and .cse12 .cse14 .cse15 .cse3 .cse22 .cse4) (not (= |old(~a17~0)| 1)) (and .cse28 .cse23 .cse5 .cse6 .cse7 .cse8 .cse9 .cse24 .cse10 .cse11) (and .cse30 .cse12 .cse0 .cse17 .cse3 .cse16) (and .cse0 .cse26 .cse1 .cse2 .cse18 .cse16) (and (= ~a17~0 |old(~a17~0)|) .cse12 .cse14 .cse3 .cse29) (and .cse30 .cse12 .cse17 .cse18 .cse27 .cse16) (and .cse31 .cse30 .cse17 .cse20 .cse18 .cse4) (and .cse31 (not .cse30) .cse14 .cse18 .cse15 .cse4) (and .cse30 .cse1 .cse18 .cse27 .cse4) (and .cse25 .cse12 .cse14 .cse18 .cse16)))) [2020-10-13 06:03:27,441 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:03:27,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:03:27 BoogieIcfgContainer [2020-10-13 06:03:27,473 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:03:27,474 INFO L168 Benchmark]: Toolchain (without parser) took 148105.13 ms. Allocated memory was 140.5 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 102.5 MB in the beginning and 559.8 MB in the end (delta: -457.3 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-13 06:03:27,475 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:03:27,475 INFO L168 Benchmark]: CACSL2BoogieTranslator took 809.94 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 102.3 MB in the beginning and 169.3 MB in the end (delta: -67.0 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:03:27,475 INFO L168 Benchmark]: Boogie Preprocessor took 143.36 ms. Allocated memory is still 205.5 MB. Free memory was 169.3 MB in the beginning and 164.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-10-13 06:03:27,476 INFO L168 Benchmark]: RCFGBuilder took 1221.29 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 164.3 MB in the beginning and 176.0 MB in the end (delta: -11.7 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:03:27,476 INFO L168 Benchmark]: TraceAbstraction took 145925.25 ms. Allocated memory was 237.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 174.6 MB in the beginning and 559.8 MB in the end (delta: -385.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-13 06:03:27,478 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 809.94 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 102.3 MB in the beginning and 169.3 MB in the end (delta: -67.0 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.36 ms. Allocated memory is still 205.5 MB. Free memory was 169.3 MB in the beginning and 164.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1221.29 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 164.3 MB in the beginning and 176.0 MB in the end (delta: -11.7 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 145925.25 ms. Allocated memory was 237.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 174.6 MB in the beginning and 559.8 MB in the end (delta: -385.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 476]: 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: (((((((((((((((((((((((((((((((((((((a7 == 1 && a8 == 13) && a21 == 0) && a20 == 1) && 5 == a16) && a17 == 1) || ((((((((a16 <= 4 && a17 <= 0) && 4 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a20 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || ((((a21 == 1 && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 0)) || (((((a21 == 1 && a7 == 1) && 14 == a8) && a17 <= 0) && a16 == 4) && a20 <= 0)) || !(\old(a20) == 1)) || ((((a21 == 1 && a17 <= 0) && a7 <= 0) && a8 == 13) && a16 == 4)) || !(\old(a21) == 1)) || (((((a21 == 1 && !(a17 == 1)) && a8 == 13) && a16 == 4) && !(a7 == 1)) && !(a20 == 1))) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && a17 == 0)) || ((((((((14 <= a8 && a8 <= 14) && a16 <= 5) && a17 <= 0) && a7 <= 0) && a21 <= 1) && 1 <= a21) && 5 <= a16) && a20 <= 0)) || !(5 == \old(a16))) || !(15 == \old(a8))) || !(\old(a7) == 0)) || !(a12 == 8)) || (((((a20 == 0 && a7 == 1) && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == 1)) || (((((a21 == 1 && 14 == a8) && a20 == 1) && a16 == 4) && a17 == a7) && a17 == 0)) || (((((a21 == 1 && a7 == 1) && a17 <= 0) && a8 == 15) && 5 == a16) && a20 <= 0)) || (((((a21 == 1 && a7 == 1) && 14 == a8) && a20 == 1) && 5 == a16) && a17 == 0)) || (((((a21 == 1 && a16 == 6) && !(a17 == 1)) && a8 == 15) && a20 == 1) && !(a7 == 1))) || (((((a7 == 1 && a16 == 6) && !(a21 == 1)) && a8 == 13) && a20 == 1) && a17 == 0)) || (((((a20 == 0 && a21 == 1) && a16 == 6) && a8 == 15) && !(a7 == 1)) && a17 == 1)) || ((((((((((a16 <= 6 && 13 <= a8) && 1 <= a20) && 1 <= a17) && 6 <= a16) && a7 <= 0) && a21 <= 1) && a20 <= 1) && a17 <= 1) && 1 <= a21) && a8 <= 13)) || (((((a21 == 1 && a8 == 13) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1)) || (((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && !(a20 == 1)) && a17 == 1)) || !(\old(a17) == 1)) || (((((((((1 <= a20 && a16 <= 5) && a17 <= 0) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a20 <= 1) && 1 <= a21) && 5 <= a16) && a8 <= 15) && 15 <= a8)) || (((((a20 == a17 && a21 == 1) && a7 == 1) && 14 == a8) && 5 == a16) && a17 == 0)) || (((((a7 == 1 && !(a21 == 1)) && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 0)) || ((((a17 == \old(a17) && a21 == 1) && a8 == 15) && 5 == a16) && a7 == 0)) || (((((a20 == a17 && a21 == 1) && 14 == a8) && a16 == 4) && a17 == a7) && a17 == 0)) || (((((a21 == a17 && a20 == a17) && 14 == a8) && a7 <= 0) && a16 == 4) && a17 == 1)) || (((((a21 == a17 && !(a20 == a17)) && a8 == 15) && a16 == 4) && !(a7 == 1)) && a17 == 1)) || ((((a20 == a17 && a8 == 13) && a16 == 4) && a17 == a7) && a17 == 1)) || ((((a20 == 0 && a21 == 1) && a8 == 15) && a16 == 4) && a17 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 136.5s, OverallIterations: 31, TraceHistogramMax: 7, AutomataDifference: 58.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 794 SDtfs, 8977 SDslu, 1189 SDs, 0 SdLazy, 22926 SolverSat, 1265 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 776 GetRequests, 351 SyntacticMatches, 24 SemanticMatches, 401 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 39.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=604occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 31 MinimizatonAttempts, 224 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 206 PreInvPairs, 262 NumberOfFragments, 3579 HoareAnnotationTreeSize, 206 FomulaSimplifications, 1264 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3580 FormulaSimplificationTreeSizeReductionInter, 8.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 70.9s InterpolantComputationTime, 7412 NumberOfCodeBlocks, 7412 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 7381 ConstructedInterpolants, 0 QuantifiedInterpolants, 18913799 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 1 PerfectInterpolantSequences, 8178/8288 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...