/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:08:55,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:08:55,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:08:55,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:08:55,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:08:55,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:08:55,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:08:55,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:08:55,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:08:55,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:08:55,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:08:55,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:08:55,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:08:55,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:08:55,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:08:55,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:08:55,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:08:55,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:08:55,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:08:55,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:08:55,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:08:55,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:08:55,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:08:55,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:08:55,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:08:55,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:08:55,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:08:55,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:08:55,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:08:55,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:08:55,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:08:55,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:08:55,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:08:55,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:08:55,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:08:55,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:08:55,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:08:55,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:08:55,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:08:55,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:08:55,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:08:55,144 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 15:08:55,167 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:08:55,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:08:55,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:08:55,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:08:55,169 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:08:55,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:08:55,169 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:08:55,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:08:55,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:08:55,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:08:55,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:08:55,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:08:55,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:08:55,171 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:08:55,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:08:55,171 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:08:55,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:08:55,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:08:55,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:08:55,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:08:55,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:08:55,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:08:55,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:08:55,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:08:55,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:08:55,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:08:55,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:08:55,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:08:55,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:08:55,174 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:08:55,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:08:55,509 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:08:55,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:08:55,514 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:08:55,514 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:08:55,515 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label57.c [2020-10-12 15:08:55,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98bec9e49/ae27b3303626427badf01616488ecbf3/FLAG30b6a9c5f [2020-10-12 15:08:56,355 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:08:56,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label57.c [2020-10-12 15:08:56,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98bec9e49/ae27b3303626427badf01616488ecbf3/FLAG30b6a9c5f [2020-10-12 15:08:56,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98bec9e49/ae27b3303626427badf01616488ecbf3 [2020-10-12 15:08:56,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:08:56,888 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:08:56,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:08:56,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:08:56,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:08:56,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:08:56" (1/1) ... [2020-10-12 15:08:56,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f457a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:56, skipping insertion in model container [2020-10-12 15:08:56,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:08:56" (1/1) ... [2020-10-12 15:08:56,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:08:57,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:08:58,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:08:58,370 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:08:58,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:08:58,853 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:08:58,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:58 WrapperNode [2020-10-12 15:08:58,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:08:58,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:08:58,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:08:58,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:08:58,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:58" (1/1) ... [2020-10-12 15:08:58,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:58" (1/1) ... [2020-10-12 15:08:58,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:58" (1/1) ... [2020-10-12 15:08:58,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:58" (1/1) ... [2020-10-12 15:08:59,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:58" (1/1) ... [2020-10-12 15:08:59,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:58" (1/1) ... [2020-10-12 15:08:59,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:58" (1/1) ... [2020-10-12 15:08:59,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:08:59,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:08:59,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:08:59,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:08:59,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:08:59,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:08:59,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:08:59,296 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 15:08:59,296 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 15:08:59,296 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 15:08:59,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:08:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 15:08:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 15:08:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 15:08:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:08:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:08:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:08:59,298 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:08:59,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:08:59,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:09:05,311 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:09:05,311 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 15:09:05,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:09:05 BoogieIcfgContainer [2020-10-12 15:09:05,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:09:05,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:09:05,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:09:05,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:09:05,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:08:56" (1/3) ... [2020-10-12 15:09:05,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d03bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:09:05, skipping insertion in model container [2020-10-12 15:09:05,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:58" (2/3) ... [2020-10-12 15:09:05,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d03bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:09:05, skipping insertion in model container [2020-10-12 15:09:05,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:09:05" (3/3) ... [2020-10-12 15:09:05,332 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label57.c [2020-10-12 15:09:05,346 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:09:05,357 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:09:05,374 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:09:05,405 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:09:05,406 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:09:05,406 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:09:05,406 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:09:05,406 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:09:05,406 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:09:05,407 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:09:05,407 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:09:05,449 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-12 15:09:05,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 15:09:05,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:09:05,458 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:09:05,459 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:09:05,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:09:05,465 INFO L82 PathProgramCache]: Analyzing trace with hash 12338169, now seen corresponding path program 1 times [2020-10-12 15:09:05,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:09:05,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45565544] [2020-10-12 15:09:05,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:09:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:05,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:05,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:05,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:09:05,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:05,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-12 15:09:05,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:05,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:09:05,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:09:05,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 15:09:05,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:09:06,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:09:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:06,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:06,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:06,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:09:06,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:06,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 15:09:06,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:06,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:09:06,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:06,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:09:06,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:06,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:09:06,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45565544] [2020-10-12 15:09:06,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:09:06,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 15:09:06,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508355172] [2020-10-12 15:09:06,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:09:06,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:09:06,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:09:06,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:09:06,127 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-12 15:09:13,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:09:13,329 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-12 15:09:13,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:09:13,331 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-12 15:09:13,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:09:13,361 INFO L225 Difference]: With dead ends: 2270 [2020-10-12 15:09:13,361 INFO L226 Difference]: Without dead ends: 1432 [2020-10-12 15:09:13,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:09:13,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-12 15:09:13,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-12 15:09:13,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-12 15:09:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2229 transitions. [2020-10-12 15:09:13,510 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2229 transitions. Word has length 14 [2020-10-12 15:09:13,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:09:13,511 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2229 transitions. [2020-10-12 15:09:13,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:09:13,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2229 transitions. [2020-10-12 15:09:13,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-12 15:09:13,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:09:13,516 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:09:13,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:09:13,516 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:09:13,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:09:13,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1564891188, now seen corresponding path program 1 times [2020-10-12 15:09:13,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:09:13,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977548485] [2020-10-12 15:09:13,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:09:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:13,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:13,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:14,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:14,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-12 15:09:14,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:09:14,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 682 [2020-10-12 15:09:14,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:09:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:09:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 15:09:14,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:14,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:09:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:14,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:14,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:14,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:09:14,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:14,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:09:14,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:09:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:14,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:09:14,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:14,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:09:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:14,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:14,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:14,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 15:09:14,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:14,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-12 15:09:14,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:14,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:09:14,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:09:14,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 15:09:14,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:09:14,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977548485] [2020-10-12 15:09:14,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:09:14,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:09:14,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393017852] [2020-10-12 15:09:14,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:09:14,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:09:14,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:09:14,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:09:14,548 INFO L87 Difference]: Start difference. First operand 1425 states and 2229 transitions. Second operand 7 states. [2020-10-12 15:09:26,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:09:26,077 INFO L93 Difference]: Finished difference Result 4352 states and 6838 transitions. [2020-10-12 15:09:26,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:09:26,078 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-10-12 15:09:26,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:09:26,096 INFO L225 Difference]: With dead ends: 4352 [2020-10-12 15:09:26,097 INFO L226 Difference]: Without dead ends: 2933 [2020-10-12 15:09:26,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:09:26,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2020-10-12 15:09:26,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2878. [2020-10-12 15:09:26,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2878 states. [2020-10-12 15:09:26,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 3876 transitions. [2020-10-12 15:09:26,191 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 3876 transitions. Word has length 84 [2020-10-12 15:09:26,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:09:26,192 INFO L479 AbstractCegarLoop]: Abstraction has 2878 states and 3876 transitions. [2020-10-12 15:09:26,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:09:26,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 3876 transitions. [2020-10-12 15:09:26,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 15:09:26,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:09:26,195 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 15:09:26,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:09:26,196 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:09:26,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:09:26,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1384897716, now seen corresponding path program 1 times [2020-10-12 15:09:26,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:09:26,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307692292] [2020-10-12 15:09:26,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:09:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:26,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:26,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:26,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:26,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 15:09:26,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:09:26,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 647 [2020-10-12 15:09:26,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:26,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:09:26,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:09:26,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 15:09:26,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:26,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:09:26,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:26,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:26,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:26,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:09:26,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:26,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:09:26,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:26,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:09:26,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:26,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:09:26,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:26,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:09:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:26,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:27,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:27,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:09:27,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:27,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-12 15:09:27,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:09:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:09:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 15:09:27,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:27,298 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:09:27,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307692292] [2020-10-12 15:09:27,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:09:27,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:09:27,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023836070] [2020-10-12 15:09:27,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:09:27,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:09:27,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:09:27,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:09:27,303 INFO L87 Difference]: Start difference. First operand 2878 states and 3876 transitions. Second operand 7 states. [2020-10-12 15:09:35,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:09:35,276 INFO L93 Difference]: Finished difference Result 7305 states and 9573 transitions. [2020-10-12 15:09:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:09:35,285 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-12 15:09:35,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:09:35,307 INFO L225 Difference]: With dead ends: 7305 [2020-10-12 15:09:35,307 INFO L226 Difference]: Without dead ends: 4433 [2020-10-12 15:09:35,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-12 15:09:35,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2020-10-12 15:09:35,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 4332. [2020-10-12 15:09:35,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4332 states. [2020-10-12 15:09:35,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 5419 transitions. [2020-10-12 15:09:35,427 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 5419 transitions. Word has length 104 [2020-10-12 15:09:35,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:09:35,427 INFO L479 AbstractCegarLoop]: Abstraction has 4332 states and 5419 transitions. [2020-10-12 15:09:35,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:09:35,428 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 5419 transitions. [2020-10-12 15:09:35,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-12 15:09:35,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:09:35,430 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 15:09:35,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:09:35,430 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:09:35,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:09:35,431 INFO L82 PathProgramCache]: Analyzing trace with hash -689117923, now seen corresponding path program 1 times [2020-10-12 15:09:35,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:09:35,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289328437] [2020-10-12 15:09:35,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:09:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:35,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:35,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:36,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:36,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-12 15:09:36,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:09:36,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 980 [2020-10-12 15:09:36,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:36,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:09:36,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:09:36,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 15:09:36,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:36,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:09:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:36,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:36,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:36,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:09:36,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:36,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:09:36,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:36,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:09:36,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:36,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:09:36,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:36,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:09:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:36,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:36,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:36,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 15:09:36,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:36,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-12 15:09:36,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:09:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:09:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 15:09:36,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:37,022 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:09:37,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289328437] [2020-10-12 15:09:37,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:09:37,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 15:09:37,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069000930] [2020-10-12 15:09:37,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:09:37,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:09:37,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:09:37,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:09:37,032 INFO L87 Difference]: Start difference. First operand 4332 states and 5419 transitions. Second operand 8 states. [2020-10-12 15:09:47,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:09:47,900 INFO L93 Difference]: Finished difference Result 10948 states and 14241 transitions. [2020-10-12 15:09:47,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:09:47,901 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 111 [2020-10-12 15:09:47,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:09:47,934 INFO L225 Difference]: With dead ends: 10948 [2020-10-12 15:09:47,934 INFO L226 Difference]: Without dead ends: 8042 [2020-10-12 15:09:47,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-12 15:09:47,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8042 states. [2020-10-12 15:09:48,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8042 to 7260. [2020-10-12 15:09:48,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7260 states. [2020-10-12 15:09:48,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7260 states to 7260 states and 8660 transitions. [2020-10-12 15:09:48,122 INFO L78 Accepts]: Start accepts. Automaton has 7260 states and 8660 transitions. Word has length 111 [2020-10-12 15:09:48,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:09:48,123 INFO L479 AbstractCegarLoop]: Abstraction has 7260 states and 8660 transitions. [2020-10-12 15:09:48,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:09:48,123 INFO L276 IsEmpty]: Start isEmpty. Operand 7260 states and 8660 transitions. [2020-10-12 15:09:48,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-12 15:09:48,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:09:48,139 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:09:48,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:09:48,140 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:09:48,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:09:48,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1478133482, now seen corresponding path program 1 times [2020-10-12 15:09:48,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:09:48,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813536434] [2020-10-12 15:09:48,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:09:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:48,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:48,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:48,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:49,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:49,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-12 15:09:49,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:09:49,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1624 [2020-10-12 15:09:49,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:49,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:09:49,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-12 15:09:49,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:09:49,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:49,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:09:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:49,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:49,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:49,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:09:49,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:49,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:09:49,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:49,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:09:49,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:49,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:09:49,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:49,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:09:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:49,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:49,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:49,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 15:09:49,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:49,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 15:09:49,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:49,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:09:49,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:49,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:09:49,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:50,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-12 15:09:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:50,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:50,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:50,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 15:09:50,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:50,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 15:09:50,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:50,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:09:50,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:50,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 15:09:50,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:50,268 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-12 15:09:50,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813536434] [2020-10-12 15:09:50,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:09:50,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:09:50,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510921487] [2020-10-12 15:09:50,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:09:50,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:09:50,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:09:50,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:09:50,274 INFO L87 Difference]: Start difference. First operand 7260 states and 8660 transitions. Second operand 5 states. [2020-10-12 15:09:58,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:09:58,044 INFO L93 Difference]: Finished difference Result 15987 states and 19878 transitions. [2020-10-12 15:09:58,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:09:58,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 297 [2020-10-12 15:09:58,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:09:58,076 INFO L225 Difference]: With dead ends: 15987 [2020-10-12 15:09:58,076 INFO L226 Difference]: Without dead ends: 7257 [2020-10-12 15:09:58,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:09:58,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7257 states. [2020-10-12 15:09:58,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7257 to 7227. [2020-10-12 15:09:58,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7227 states. [2020-10-12 15:09:58,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7227 states to 7227 states and 7984 transitions. [2020-10-12 15:09:58,251 INFO L78 Accepts]: Start accepts. Automaton has 7227 states and 7984 transitions. Word has length 297 [2020-10-12 15:09:58,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:09:58,252 INFO L479 AbstractCegarLoop]: Abstraction has 7227 states and 7984 transitions. [2020-10-12 15:09:58,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:09:58,252 INFO L276 IsEmpty]: Start isEmpty. Operand 7227 states and 7984 transitions. [2020-10-12 15:09:58,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2020-10-12 15:09:58,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:09:58,259 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:09:58,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:09:58,260 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:09:58,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:09:58,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1176008666, now seen corresponding path program 1 times [2020-10-12 15:09:58,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:09:58,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339247256] [2020-10-12 15:09:58,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:09:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:58,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:58,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:59,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:03,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:03,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 425 [2020-10-12 15:10:03,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:10:03,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 15:10:03,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:03,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:10:03,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:10:03,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-12 15:10:03,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:03,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:10:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:03,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:03,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:03,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:10:03,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:03,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:10:03,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:10:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:10:03,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:03,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:10:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:03,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:04,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:04,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:10:04,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:04,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 621 [2020-10-12 15:10:04,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:04,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:10:04,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:10:04,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 15:10:04,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:04,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:04,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:04,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:04,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:10:04,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:04,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 15:10:04,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:04,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:10:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:10:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 15:10:04,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:04,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 15:10:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:04,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:04,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:04,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:10:04,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:04,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 15:10:04,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:04,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:04,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-12 15:10:04,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:04,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:05,026 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 14 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 15:10:05,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339247256] [2020-10-12 15:10:05,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:10:05,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:10:05,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056197985] [2020-10-12 15:10:05,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:10:05,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:10:05,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:10:05,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:10:05,030 INFO L87 Difference]: Start difference. First operand 7227 states and 7984 transitions. Second operand 7 states. [2020-10-12 15:10:12,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:10:12,057 INFO L93 Difference]: Finished difference Result 19689 states and 22215 transitions. [2020-10-12 15:10:12,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:10:12,063 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 411 [2020-10-12 15:10:12,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:10:12,105 INFO L225 Difference]: With dead ends: 19689 [2020-10-12 15:10:12,105 INFO L226 Difference]: Without dead ends: 13170 [2020-10-12 15:10:12,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:10:12,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13170 states. [2020-10-12 15:10:12,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13170 to 13119. [2020-10-12 15:10:12,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13119 states. [2020-10-12 15:10:12,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13119 states to 13119 states and 14395 transitions. [2020-10-12 15:10:12,367 INFO L78 Accepts]: Start accepts. Automaton has 13119 states and 14395 transitions. Word has length 411 [2020-10-12 15:10:12,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:10:12,367 INFO L479 AbstractCegarLoop]: Abstraction has 13119 states and 14395 transitions. [2020-10-12 15:10:12,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:10:12,368 INFO L276 IsEmpty]: Start isEmpty. Operand 13119 states and 14395 transitions. [2020-10-12 15:10:12,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2020-10-12 15:10:12,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:10:12,397 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:10:12,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 15:10:12,398 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:10:12,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:10:12,398 INFO L82 PathProgramCache]: Analyzing trace with hash 992168034, now seen corresponding path program 1 times [2020-10-12 15:10:12,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:10:12,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053741740] [2020-10-12 15:10:12,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:10:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:12,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:13,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:15,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:15,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 958 [2020-10-12 15:10:15,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:10:15,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3174 [2020-10-12 15:10:15,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:15,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:10:15,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 944 [2020-10-12 15:10:15,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:10:15,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:15,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:10:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:15,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:15,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:16,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:10:16,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:16,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:10:16,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:16,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:16,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:10:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:16,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:16,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:16,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:10:16,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:16,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-12 15:10:16,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:16,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:16,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:16,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:16,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:16,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:16,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:16,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:16,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:10:16,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:16,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 15:10:16,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:16,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:16,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:16,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:16,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:16,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:10:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:16,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:16,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:16,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:10:16,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:16,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:10:16,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:16,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:16,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:16,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:16,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:16,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:10:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:16,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:16,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:16,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:10:16,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:16,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 15:10:16,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:16,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:16,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:16,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:16,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:16,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:16,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:16,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:16,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:10:16,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:16,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:10:16,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:16,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:16,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:16,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:16,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:16,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:10:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:16,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:16,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:16,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:10:16,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:16,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 15:10:16,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:16,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:10:16,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:16,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 15:10:16,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:17,612 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-10-12 15:10:17,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053741740] [2020-10-12 15:10:17,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:10:17,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:10:17,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617728010] [2020-10-12 15:10:17,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:10:17,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:10:17,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:10:17,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:10:17,616 INFO L87 Difference]: Start difference. First operand 13119 states and 14395 transitions. Second operand 5 states. [2020-10-12 15:10:24,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:10:24,198 INFO L93 Difference]: Finished difference Result 27713 states and 31034 transitions. [2020-10-12 15:10:24,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:10:24,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 938 [2020-10-12 15:10:24,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:10:24,255 INFO L225 Difference]: With dead ends: 27713 [2020-10-12 15:10:24,255 INFO L226 Difference]: Without dead ends: 16012 [2020-10-12 15:10:24,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:10:24,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16012 states. [2020-10-12 15:10:24,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16012 to 15981. [2020-10-12 15:10:24,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15981 states. [2020-10-12 15:10:24,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15981 states to 15981 states and 17461 transitions. [2020-10-12 15:10:24,588 INFO L78 Accepts]: Start accepts. Automaton has 15981 states and 17461 transitions. Word has length 938 [2020-10-12 15:10:24,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:10:24,592 INFO L479 AbstractCegarLoop]: Abstraction has 15981 states and 17461 transitions. [2020-10-12 15:10:24,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:10:24,592 INFO L276 IsEmpty]: Start isEmpty. Operand 15981 states and 17461 transitions. [2020-10-12 15:10:24,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1011 [2020-10-12 15:10:24,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:10:24,641 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:10:24,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 15:10:24,641 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:10:24,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:10:24,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1100814521, now seen corresponding path program 1 times [2020-10-12 15:10:24,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:10:24,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585746554] [2020-10-12 15:10:24,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:10:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:24,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:25,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:26,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:29,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:29,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1032 [2020-10-12 15:10:29,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:10:29,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-12 15:10:29,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:29,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:10:29,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 15:10:29,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 15:10:29,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:30,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:10:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:30,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:30,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:30,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:10:30,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:30,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:10:30,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:30,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:30,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:30,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:30,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:30,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:10:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:30,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:30,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:30,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:10:30,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:30,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-12 15:10:30,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:30,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:30,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:30,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 15:10:30,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:30,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:30,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:30,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:10:30,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:30,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-12 15:10:30,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:30,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:30,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:30,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:30,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:30,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:10:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:30,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:30,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:30,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:10:30,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:30,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:10:30,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:30,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:31,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:10:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:31,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:31,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:31,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:10:31,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:31,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-12 15:10:31,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:31,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:10:31,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:31,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 15:10:31,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:31,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:31,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:31,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:31,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:10:31,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:31,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 15:10:31,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:31,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:10:31,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:31,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 15:10:31,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:31,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:10:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:31,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:31,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:31,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:10:31,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:31,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-12 15:10:31,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:10:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:10:31,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 15:10:31,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:31,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:10:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:31,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:31,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:31,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 15:10:31,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:31,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:10:31,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:31,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:31,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-12 15:10:31,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:31,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:32,247 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 218 proven. 71 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-10-12 15:10:32,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585746554] [2020-10-12 15:10:32,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:10:32,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:10:32,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614100908] [2020-10-12 15:10:32,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:10:32,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:10:32,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:10:32,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:10:32,250 INFO L87 Difference]: Start difference. First operand 15981 states and 17461 transitions. Second operand 7 states. [2020-10-12 15:10:39,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:10:39,876 INFO L93 Difference]: Finished difference Result 37910 states and 42533 transitions. [2020-10-12 15:10:39,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:10:39,877 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1010 [2020-10-12 15:10:39,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:10:39,971 INFO L225 Difference]: With dead ends: 37910 [2020-10-12 15:10:39,971 INFO L226 Difference]: Without dead ends: 23347 [2020-10-12 15:10:40,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:10:40,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23347 states. [2020-10-12 15:10:40,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23347 to 23267. [2020-10-12 15:10:40,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23267 states. [2020-10-12 15:10:40,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23267 states to 23267 states and 25756 transitions. [2020-10-12 15:10:40,521 INFO L78 Accepts]: Start accepts. Automaton has 23267 states and 25756 transitions. Word has length 1010 [2020-10-12 15:10:40,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:10:40,523 INFO L479 AbstractCegarLoop]: Abstraction has 23267 states and 25756 transitions. [2020-10-12 15:10:40,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:10:40,523 INFO L276 IsEmpty]: Start isEmpty. Operand 23267 states and 25756 transitions. [2020-10-12 15:10:40,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1130 [2020-10-12 15:10:40,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:10:40,544 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:10:40,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 15:10:40,545 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:10:40,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:10:40,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1540002824, now seen corresponding path program 1 times [2020-10-12 15:10:40,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:10:40,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691763423] [2020-10-12 15:10:40,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:10:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:40,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:41,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:44,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:45,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:45,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:45,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1151 [2020-10-12 15:10:45,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:10:45,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-10-12 15:10:45,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:45,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:10:45,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-12 15:10:45,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 15:10:45,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:46,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:10:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:46,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:46,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:46,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:10:46,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:46,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:10:46,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:46,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:46,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:46,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:46,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:46,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:10:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:46,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:46,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:46,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:10:46,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:46,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-12 15:10:46,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:46,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:46,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:46,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:46,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:46,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:46,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:46,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:46,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:10:46,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:46,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-12 15:10:46,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:46,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:46,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:46,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:46,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:46,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:10:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:46,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:46,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:46,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:10:46,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:46,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:10:46,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:46,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:46,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:46,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:46,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:47,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:10:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:47,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:47,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:47,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:10:47,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:47,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-12 15:10:47,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:47,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:47,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:47,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:47,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:47,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:47,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:47,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:47,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:10:47,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:47,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:10:47,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:47,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:47,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:47,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:47,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 15:10:47,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:10:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:47,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:47,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:47,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:10:47,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:47,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-12 15:10:47,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:47,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:10:47,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:47,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:10:47,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:47,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:10:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:47,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:47,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:47,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:47,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 15:10:47,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:10:47,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-10-12 15:10:47,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:47,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:10:47,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:10:47,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 15:10:47,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 458 proven. 9 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2020-10-12 15:10:49,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691763423] [2020-10-12 15:10:49,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:10:49,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:10:49,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794845421] [2020-10-12 15:10:49,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:10:49,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:10:49,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:10:49,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:10:49,199 INFO L87 Difference]: Start difference. First operand 23267 states and 25756 transitions. Second operand 7 states. [2020-10-12 15:10:57,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:10:57,405 INFO L93 Difference]: Finished difference Result 53774 states and 61233 transitions. [2020-10-12 15:10:57,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:10:57,407 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1129 [2020-10-12 15:10:57,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:10:57,499 INFO L225 Difference]: With dead ends: 53774 [2020-10-12 15:10:57,499 INFO L226 Difference]: Without dead ends: 31925 [2020-10-12 15:10:57,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:10:57,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31925 states. [2020-10-12 15:10:58,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31925 to 31864. [2020-10-12 15:10:58,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31864 states. [2020-10-12 15:10:58,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31864 states to 31864 states and 35498 transitions. [2020-10-12 15:10:58,083 INFO L78 Accepts]: Start accepts. Automaton has 31864 states and 35498 transitions. Word has length 1129 [2020-10-12 15:10:58,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:10:58,086 INFO L479 AbstractCegarLoop]: Abstraction has 31864 states and 35498 transitions. [2020-10-12 15:10:58,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:10:58,086 INFO L276 IsEmpty]: Start isEmpty. Operand 31864 states and 35498 transitions. [2020-10-12 15:10:58,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1165 [2020-10-12 15:10:58,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:10:58,110 INFO L422 BasicCegarLoop]: trace histogram [6, 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:10:58,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 15:10:58,110 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:10:58,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:10:58,111 INFO L82 PathProgramCache]: Analyzing trace with hash 705185100, now seen corresponding path program 1 times [2020-10-12 15:10:58,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:10:58,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998466598] [2020-10-12 15:10:58,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:10:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:58,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:59,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:59,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:01,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:03,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:03,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1188 [2020-10-12 15:11:03,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:11:03,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5078 [2020-10-12 15:11:03,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:03,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:11:03,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1174 [2020-10-12 15:11:03,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:11:03,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:03,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:11:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:03,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:03,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:03,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:11:03,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:03,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:11:03,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:03,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:03,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:03,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:03,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:03,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:11:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:03,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:03,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:03,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:11:03,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:03,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 15:11:03,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:03,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:03,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:03,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:03,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:03,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:03,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:03,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:11:03,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:03,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 15:11:03,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:03,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:03,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:03,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:11:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:03,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:03,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:03,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:11:03,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:03,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:11:03,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:03,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:03,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:03,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:03,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:04,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:11:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:04,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:04,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:04,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:11:04,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:04,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 15:11:04,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:04,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:04,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:04,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:04,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:04,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:04,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:04,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:04,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:11:04,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:04,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:11:04,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:04,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:04,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:04,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:04,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:04,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:11:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:04,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:04,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:04,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:11:04,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:04,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 15:11:04,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:04,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:04,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:11:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:04,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:04,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:04,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 15:11:04,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:04,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 15:11:04,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:04,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:04,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:04,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:04,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:04,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-12 15:11:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:04,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:04,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:04,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:11:04,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:04,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 15:11:04,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:11:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 15:11:04,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 42 proven. 5 refuted. 0 times theorem prover too weak. 1209 trivial. 0 not checked. [2020-10-12 15:11:05,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998466598] [2020-10-12 15:11:05,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:11:05,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:11:05,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054156268] [2020-10-12 15:11:05,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:11:05,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:11:05,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:11:05,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:11:05,070 INFO L87 Difference]: Start difference. First operand 31864 states and 35498 transitions. Second operand 5 states. [2020-10-12 15:11:12,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:11:12,118 INFO L93 Difference]: Finished difference Result 70895 states and 80109 transitions. [2020-10-12 15:11:12,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:11:12,120 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1164 [2020-10-12 15:11:12,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:11:12,244 INFO L225 Difference]: With dead ends: 70895 [2020-10-12 15:11:12,245 INFO L226 Difference]: Without dead ends: 40449 [2020-10-12 15:11:12,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:11:12,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40449 states. [2020-10-12 15:11:12,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40449 to 40412. [2020-10-12 15:11:12,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40412 states. [2020-10-12 15:11:13,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40412 states to 40412 states and 45635 transitions. [2020-10-12 15:11:13,062 INFO L78 Accepts]: Start accepts. Automaton has 40412 states and 45635 transitions. Word has length 1164 [2020-10-12 15:11:13,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:11:13,064 INFO L479 AbstractCegarLoop]: Abstraction has 40412 states and 45635 transitions. [2020-10-12 15:11:13,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:11:13,064 INFO L276 IsEmpty]: Start isEmpty. Operand 40412 states and 45635 transitions. [2020-10-12 15:11:13,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1194 [2020-10-12 15:11:13,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:11:13,100 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:11:13,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 15:11:13,101 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:11:13,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:11:13,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1444225160, now seen corresponding path program 1 times [2020-10-12 15:11:13,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:11:13,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186782259] [2020-10-12 15:11:13,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:11:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:13,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:13,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:14,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:18,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:18,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1215 [2020-10-12 15:11:18,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:11:18,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-12 15:11:18,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:18,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:11:18,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 15:11:18,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 15:11:18,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:18,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:11:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:18,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:18,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:18,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:11:18,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:18,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:11:18,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:18,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:18,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:18,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:18,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:11:18,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:11:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:18,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:18,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:18,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:11:18,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:18,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-12 15:11:18,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:18,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:18,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:18,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:18,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:18,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:18,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:18,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:18,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:11:18,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:18,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 15:11:18,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:18,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:18,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:11:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:18,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:18,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:18,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:11:18,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:18,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:11:18,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:18,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:18,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:18,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:18,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:19,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:11:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:19,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:19,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:19,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:11:19,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:19,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-12 15:11:19,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:19,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:11:19,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:19,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 15:11:19,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:19,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:19,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:19,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:19,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:11:19,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:19,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 15:11:19,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:19,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:11:19,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:19,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 15:11:19,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:19,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:11:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:19,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:19,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:19,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:11:19,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:19,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 15:11:19,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:19,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:11:19,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:11:19,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 15:11:19,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:19,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-12 15:11:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:19,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:20,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:20,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 15:11:20,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:20,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1245 [2020-10-12 15:11:20,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:20,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:20,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 221 [2020-10-12 15:11:20,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:20,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:21,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1147 backedges. 282 proven. 121 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2020-10-12 15:11:21,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186782259] [2020-10-12 15:11:21,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:11:21,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:11:21,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852809285] [2020-10-12 15:11:21,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:11:21,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:11:21,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:11:21,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:11:21,445 INFO L87 Difference]: Start difference. First operand 40412 states and 45635 transitions. Second operand 7 states. [2020-10-12 15:11:35,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:11:35,510 INFO L93 Difference]: Finished difference Result 87328 states and 99150 transitions. [2020-10-12 15:11:35,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:11:35,512 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1193 [2020-10-12 15:11:35,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:11:35,683 INFO L225 Difference]: With dead ends: 87328 [2020-10-12 15:11:35,684 INFO L226 Difference]: Without dead ends: 48334 [2020-10-12 15:11:35,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:11:35,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48334 states. [2020-10-12 15:11:36,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48334 to 48266. [2020-10-12 15:11:36,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48266 states. [2020-10-12 15:11:36,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48266 states to 48266 states and 54210 transitions. [2020-10-12 15:11:36,703 INFO L78 Accepts]: Start accepts. Automaton has 48266 states and 54210 transitions. Word has length 1193 [2020-10-12 15:11:36,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:11:36,705 INFO L479 AbstractCegarLoop]: Abstraction has 48266 states and 54210 transitions. [2020-10-12 15:11:36,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:11:36,705 INFO L276 IsEmpty]: Start isEmpty. Operand 48266 states and 54210 transitions. [2020-10-12 15:11:36,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1199 [2020-10-12 15:11:36,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:11:36,756 INFO L422 BasicCegarLoop]: trace histogram [6, 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:11:36,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 15:11:36,757 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:11:36,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:11:36,757 INFO L82 PathProgramCache]: Analyzing trace with hash 2016292886, now seen corresponding path program 1 times [2020-10-12 15:11:36,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:11:36,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [329817955] [2020-10-12 15:11:36,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:11:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:37,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:37,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:37,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:40,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:42,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:42,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1222 [2020-10-12 15:11:42,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:11:42,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5084 [2020-10-12 15:11:42,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:42,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:11:42,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1208 [2020-10-12 15:11:42,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:11:42,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:42,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:11:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:42,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:42,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:42,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:11:42,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:42,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:11:42,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:42,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:42,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:42,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:42,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:42,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:11:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:42,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:42,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:42,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:11:42,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:42,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 15:11:42,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:42,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:42,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:42,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:42,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:42,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:42,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:42,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:42,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:11:42,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:42,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 15:11:42,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:42,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:42,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:42,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:42,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:42,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:11:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:42,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:42,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:42,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:11:42,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:42,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:11:42,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:42,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:42,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:11:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:42,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:42,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:42,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:11:42,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:42,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 15:11:42,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:42,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:42,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:42,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:42,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:42,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:42,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:42,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:42,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:11:42,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:42,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 15:11:42,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:42,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:42,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:42,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:42,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:11:42,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:11:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:42,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:42,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:42,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 15:11:42,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:43,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 15:11:43,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:43,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:43,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:43,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:43,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:43,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2020-10-12 15:11:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:43,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:43,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:43,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 15:11:43,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:43,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 15:11:43,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:43,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:43,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:43,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:43,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:43,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1055 [2020-10-12 15:11:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:43,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:43,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:43,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-12 15:11:43,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:43,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-12 15:11:43,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:43,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:11:43,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:43,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 15:11:43,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:44,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 42 proven. 5 refuted. 0 times theorem prover too weak. 1274 trivial. 0 not checked. [2020-10-12 15:11:44,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [329817955] [2020-10-12 15:11:44,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:11:44,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 15:11:44,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502834249] [2020-10-12 15:11:44,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 15:11:44,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:11:44,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 15:11:44,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:11:44,045 INFO L87 Difference]: Start difference. First operand 48266 states and 54210 transitions. Second operand 6 states. [2020-10-12 15:11:56,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:11:56,149 INFO L93 Difference]: Finished difference Result 95146 states and 107028 transitions. [2020-10-12 15:11:56,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:11:56,156 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1198 [2020-10-12 15:11:56,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:11:56,311 INFO L225 Difference]: With dead ends: 95146 [2020-10-12 15:11:56,311 INFO L226 Difference]: Without dead ends: 48298 [2020-10-12 15:11:56,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:11:56,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48298 states. [2020-10-12 15:11:57,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48298 to 46854. [2020-10-12 15:11:57,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46854 states. [2020-10-12 15:11:57,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46854 states to 46854 states and 50489 transitions. [2020-10-12 15:11:57,262 INFO L78 Accepts]: Start accepts. Automaton has 46854 states and 50489 transitions. Word has length 1198 [2020-10-12 15:11:57,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:11:57,263 INFO L479 AbstractCegarLoop]: Abstraction has 46854 states and 50489 transitions. [2020-10-12 15:11:57,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 15:11:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 46854 states and 50489 transitions. [2020-10-12 15:11:57,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1257 [2020-10-12 15:11:57,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:11:57,296 INFO L422 BasicCegarLoop]: trace histogram [6, 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:11:57,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 15:11:57,297 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:11:57,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:11:57,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1250144660, now seen corresponding path program 1 times [2020-10-12 15:11:57,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:11:57,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974175725] [2020-10-12 15:11:57,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:11:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:57,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:57,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:58,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:02,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:02,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1280 [2020-10-12 15:12:02,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:12:02,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 15:12:02,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:02,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:12:02,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1070 [2020-10-12 15:12:02,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 197 [2020-10-12 15:12:02,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:02,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:12:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:02,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:02,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:02,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:12:02,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:02,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:12:02,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:02,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:02,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:02,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:02,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:02,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:12:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:02,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:02,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:02,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:12:02,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:02,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 15:12:02,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:02,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:02,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:02,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:02,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:02,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:12:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:02,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:03,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:03,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:12:03,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:03,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 15:12:03,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:03,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:03,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:03,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:03,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:03,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:12:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:03,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:03,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:03,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:12:03,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:03,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:12:03,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:03,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:03,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:03,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:03,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:03,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:12:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:03,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:03,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:03,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:12:03,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:03,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 15:12:03,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:03,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:03,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:12:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:03,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:03,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:03,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:12:03,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:03,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:12:03,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:03,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:03,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:03,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:03,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:03,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:12:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:03,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:03,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:03,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 15:12:03,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:03,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 15:12:03,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:03,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:03,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:03,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:03,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:03,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2020-10-12 15:12:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:03,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:03,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:03,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 15:12:03,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:03,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 15:12:03,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:03,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:12:03,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:03,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 15:12:03,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:03,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1056 [2020-10-12 15:12:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:03,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:03,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:03,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-12 15:12:03,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:03,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-12 15:12:03,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:03,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:12:03,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:12:03,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-12 15:12:03,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:04,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 640 proven. 2 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2020-10-12 15:12:04,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974175725] [2020-10-12 15:12:04,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:12:04,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:12:04,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603153153] [2020-10-12 15:12:04,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:12:04,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:12:04,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:12:04,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:12:04,658 INFO L87 Difference]: Start difference. First operand 46854 states and 50489 transitions. Second operand 7 states. [2020-10-12 15:12:16,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:12:16,060 INFO L93 Difference]: Finished difference Result 106532 states and 116509 transitions. [2020-10-12 15:12:16,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:12:16,063 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1256 [2020-10-12 15:12:16,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:12:16,187 INFO L225 Difference]: With dead ends: 106532 [2020-10-12 15:12:16,187 INFO L226 Difference]: Without dead ends: 54713 [2020-10-12 15:12:16,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:12:16,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54713 states. [2020-10-12 15:12:18,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54713 to 54637. [2020-10-12 15:12:18,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54637 states. [2020-10-12 15:12:18,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54637 states to 54637 states and 58541 transitions. [2020-10-12 15:12:18,584 INFO L78 Accepts]: Start accepts. Automaton has 54637 states and 58541 transitions. Word has length 1256 [2020-10-12 15:12:18,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:12:18,586 INFO L479 AbstractCegarLoop]: Abstraction has 54637 states and 58541 transitions. [2020-10-12 15:12:18,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:12:18,586 INFO L276 IsEmpty]: Start isEmpty. Operand 54637 states and 58541 transitions. [2020-10-12 15:12:18,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1599 [2020-10-12 15:12:18,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:12:18,670 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:12:18,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 15:12:18,671 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:12:18,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:12:18,672 INFO L82 PathProgramCache]: Analyzing trace with hash -589644099, now seen corresponding path program 1 times [2020-10-12 15:12:18,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:12:18,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798141269] [2020-10-12 15:12:18,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:12:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:19,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:19,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:19,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:24,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:24,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1626 [2020-10-12 15:12:24,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:12:24,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 15:12:24,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:24,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:12:24,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1043 [2020-10-12 15:12:24,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-12 15:12:24,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:24,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:12:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:24,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:24,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:24,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:12:24,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:24,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:12:24,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:24,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:24,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:12:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:24,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:24,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:24,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:12:24,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:24,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-12 15:12:24,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:24,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:24,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:24,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:24,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:24,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:12:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:24,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:24,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:24,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:12:24,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:24,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 15:12:24,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:24,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:24,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:12:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:24,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:24,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:24,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:12:24,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:24,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:12:24,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:24,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:24,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:24,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:24,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:24,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:12:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:24,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:24,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:24,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:12:24,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:24,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 15:12:24,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:24,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:24,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:24,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:24,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:24,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:12:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:24,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:24,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:24,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:12:24,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:24,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:12:24,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:24,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:24,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:24,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:24,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:24,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:12:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:24,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:24,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:24,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 15:12:24,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:24,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 15:12:24,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:24,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:24,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:24,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:24,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:24,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-12 15:12:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:24,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:24,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:24,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 15:12:24,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:24,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 15:12:24,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:12:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 15:12:24,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:24,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2020-10-12 15:12:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:25,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:25,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:25,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-12 15:12:25,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:25,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-12 15:12:25,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:25,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:12:25,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:12:25,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-12 15:12:25,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:25,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1281 [2020-10-12 15:12:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:25,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:25,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:25,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-12 15:12:25,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:25,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-12 15:12:25,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:25,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:25,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 311 [2020-10-12 15:12:25,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:25,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:12:25,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:12:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:12:25,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:12:25,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:12:25,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 15:12:25,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:12:25,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 15:12:25,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:12:25,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:12:25,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:12:25,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:12:25,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:12:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2547 backedges. 752 proven. 251 refuted. 0 times theorem prover too weak. 1544 trivial. 0 not checked. [2020-10-12 15:12:28,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798141269] [2020-10-12 15:12:28,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:12:28,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:12:28,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52247100] [2020-10-12 15:12:28,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:12:28,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:12:28,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:12:28,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:12:28,119 INFO L87 Difference]: Start difference. First operand 54637 states and 58541 transitions. Second operand 7 states.