/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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 language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:47:48,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:47:48,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:47:48,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:47:48,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:47:48,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:47:48,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:47:48,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:47:48,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:47:48,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:47:48,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:47:48,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:47:48,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:47:48,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:47:48,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:47:48,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:47:48,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:47:48,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:47:48,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:47:48,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:47:48,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:47:48,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:47:48,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:47:48,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:47:48,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:47:48,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:47:48,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:47:48,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:47:48,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:47:48,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:47:48,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:47:48,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:47:48,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:47:48,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:47:48,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:47:48,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:47:48,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:47:48,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:47:48,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:47:48,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:47:48,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:47:48,252 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 [2020-10-28 12:47:48,318 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:47:48,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:47:48,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:47:48,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:47:48,324 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:47:48,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:47:48,324 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:47:48,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:47:48,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:47:48,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:47:48,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:47:48,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:47:48,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:47:48,328 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:47:48,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:47:48,328 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:47:48,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:47:48,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:47:48,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:47:48,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:47:48,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:47:48,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:47:48,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:47:48,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:47:48,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:47:48,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:47:48,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:47:48,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:47:48,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:47:48,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:47:48,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:47:48,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:47:48,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:47:48,821 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:47:48,822 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:47:48,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label09.c [2020-10-28 12:47:48,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d366e9530/9a8dca37b020445eb6b4722f005a051d/FLAG928dc505b [2020-10-28 12:47:49,826 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:47:49,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label09.c [2020-10-28 12:47:49,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d366e9530/9a8dca37b020445eb6b4722f005a051d/FLAG928dc505b [2020-10-28 12:47:49,972 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d366e9530/9a8dca37b020445eb6b4722f005a051d [2020-10-28 12:47:49,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:47:49,985 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:47:49,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:47:49,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:47:49,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:47:49,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:47:49" (1/1) ... [2020-10-28 12:47:50,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb69c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:47:49, skipping insertion in model container [2020-10-28 12:47:50,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:47:49" (1/1) ... [2020-10-28 12:47:50,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:47:50,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:47:50,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:47:50,790 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:47:51,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:47:51,048 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:47:51,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:47:51 WrapperNode [2020-10-28 12:47:51,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:47:51,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:47:51,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:47:51,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:47:51,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:47:51" (1/1) ... [2020-10-28 12:47:51,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:47:51" (1/1) ... [2020-10-28 12:47:51,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:47:51" (1/1) ... [2020-10-28 12:47:51,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:47:51" (1/1) ... [2020-10-28 12:47:51,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:47:51" (1/1) ... [2020-10-28 12:47:51,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:47:51" (1/1) ... [2020-10-28 12:47:51,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:47:51" (1/1) ... [2020-10-28 12:47:51,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:47:51,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:47:51,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:47:51,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:47:51,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:47:51" (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 [2020-10-28 12:47:51,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:47:51,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:47:51,342 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:47:51,342 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:47:51,343 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:47:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:47:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:47:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:47:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:47:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:47:51,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:47:51,346 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:47:51,346 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:47:51,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:47:51,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:47:51,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:47:51,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:47:51,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:47:51,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:47:53,009 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:47:53,010 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:47:53,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:47:53 BoogieIcfgContainer [2020-10-28 12:47:53,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:47:53,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:47:53,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:47:53,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:47:53,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:47:49" (1/3) ... [2020-10-28 12:47:53,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ae9514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:47:53, skipping insertion in model container [2020-10-28 12:47:53,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:47:51" (2/3) ... [2020-10-28 12:47:53,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ae9514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:47:53, skipping insertion in model container [2020-10-28 12:47:53,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:47:53" (3/3) ... [2020-10-28 12:47:53,023 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label09.c [2020-10-28 12:47:53,036 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:47:53,042 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:47:53,061 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:47:53,109 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:47:53,110 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:47:53,110 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:47:53,110 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:47:53,110 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:47:53,110 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:47:53,110 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:47:53,110 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:47:53,157 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-28 12:47:53,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-28 12:47:53,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:47:53,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:47:53,167 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:47:53,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:47:53,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1987006792, now seen corresponding path program 1 times [2020-10-28 12:47:53,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:47:53,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41947594] [2020-10-28 12:47:53,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:47:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:53,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:54,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:54,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-28 12:47:54,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:54,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 626 [2020-10-28 12:47:54,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:54,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:47:54,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:47:54,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 12:47:54,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:47:54,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:47:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:54,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:54,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:54,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:47:54,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:54,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:47:54,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:54,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:47:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:47:54,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:54,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:47:54,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41947594] [2020-10-28 12:47:54,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:47:54,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 12:47:54,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770601012] [2020-10-28 12:47:54,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:47:54,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:47:54,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:47:54,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:47:54,277 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 5 states. [2020-10-28 12:47:57,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:47:57,694 INFO L93 Difference]: Finished difference Result 891 states and 1619 transitions. [2020-10-28 12:47:57,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:47:57,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-10-28 12:47:57,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:47:57,720 INFO L225 Difference]: With dead ends: 891 [2020-10-28 12:47:57,720 INFO L226 Difference]: Without dead ends: 565 [2020-10-28 12:47:57,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:47:57,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-28 12:47:57,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2020-10-28 12:47:57,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-28 12:47:57,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 907 transitions. [2020-10-28 12:47:57,856 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 907 transitions. Word has length 52 [2020-10-28 12:47:57,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:47:57,858 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 907 transitions. [2020-10-28 12:47:57,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:47:57,858 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 907 transitions. [2020-10-28 12:47:57,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 12:47:57,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:47:57,870 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:47:57,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:47:57,870 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:47:57,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:47:57,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1122927756, now seen corresponding path program 1 times [2020-10-28 12:47:57,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:47:57,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1397424729] [2020-10-28 12:47:57,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:47:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:57,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:58,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:58,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:59,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:59,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-28 12:47:59,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:47:59,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1590 [2020-10-28 12:47:59,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:59,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:59,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:47:59,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:47:59,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:47:59,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:47:59,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:47:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:59,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:59,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:59,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:47:59,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:59,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:47:59,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:59,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:59,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:47:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:47:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:47:59,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:59,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:47:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:47:59,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:47:59,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:47:59,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 12:47:59,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:47:59,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-28 12:47:59,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:47:59,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:47:59,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:47:59,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:47:59,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:47:59,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:47:59,893 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:47:59,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1397424729] [2020-10-28 12:47:59,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:47:59,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 12:47:59,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431719788] [2020-10-28 12:47:59,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:47:59,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:47:59,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:47:59,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:47:59,898 INFO L87 Difference]: Start difference. First operand 559 states and 907 transitions. Second operand 8 states. [2020-10-28 12:48:03,450 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 12:48:04,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:48:04,557 INFO L93 Difference]: Finished difference Result 2248 states and 3777 transitions. [2020-10-28 12:48:04,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 12:48:04,561 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-10-28 12:48:04,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:48:04,586 INFO L225 Difference]: With dead ends: 2248 [2020-10-28 12:48:04,587 INFO L226 Difference]: Without dead ends: 1695 [2020-10-28 12:48:04,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-28 12:48:04,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2020-10-28 12:48:04,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1129. [2020-10-28 12:48:04,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2020-10-28 12:48:04,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1733 transitions. [2020-10-28 12:48:04,703 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1733 transitions. Word has length 121 [2020-10-28 12:48:04,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:48:04,704 INFO L481 AbstractCegarLoop]: Abstraction has 1129 states and 1733 transitions. [2020-10-28 12:48:04,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:48:04,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1733 transitions. [2020-10-28 12:48:04,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-28 12:48:04,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:48:04,708 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:48:04,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:48:04,709 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:48:04,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:48:04,710 INFO L82 PathProgramCache]: Analyzing trace with hash 69031024, now seen corresponding path program 1 times [2020-10-28 12:48:04,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:48:04,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799788572] [2020-10-28 12:48:04,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:48:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:04,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:04,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:05,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:05,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:06,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:06,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:48:06,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:48:06,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1397 [2020-10-28 12:48:06,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:06,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:06,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:48:06,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:48:06,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:48:06,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:06,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:48:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:06,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:06,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:06,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:48:06,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:06,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:48:06,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:06,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:48:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:48:06,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:06,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:48:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:06,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:06,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:06,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:48:06,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:06,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 12:48:06,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:06,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:48:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 12:48:06,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:06,518 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:48:06,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799788572] [2020-10-28 12:48:06,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:48:06,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:48:06,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491925071] [2020-10-28 12:48:06,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:48:06,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:48:06,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:48:06,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:48:06,525 INFO L87 Difference]: Start difference. First operand 1129 states and 1733 transitions. Second operand 7 states. [2020-10-28 12:48:09,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:48:09,088 INFO L93 Difference]: Finished difference Result 2842 states and 4489 transitions. [2020-10-28 12:48:09,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:48:09,089 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 122 [2020-10-28 12:48:09,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:48:09,104 INFO L225 Difference]: With dead ends: 2842 [2020-10-28 12:48:09,104 INFO L226 Difference]: Without dead ends: 1719 [2020-10-28 12:48:09,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:48:09,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2020-10-28 12:48:09,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1689. [2020-10-28 12:48:09,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1689 states. [2020-10-28 12:48:09,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2485 transitions. [2020-10-28 12:48:09,200 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2485 transitions. Word has length 122 [2020-10-28 12:48:09,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:48:09,201 INFO L481 AbstractCegarLoop]: Abstraction has 1689 states and 2485 transitions. [2020-10-28 12:48:09,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:48:09,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2485 transitions. [2020-10-28 12:48:09,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-28 12:48:09,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:48:09,204 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:48:09,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:48:09,205 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:48:09,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:48:09,206 INFO L82 PathProgramCache]: Analyzing trace with hash -310391572, now seen corresponding path program 1 times [2020-10-28 12:48:09,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:48:09,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758687089] [2020-10-28 12:48:09,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:48:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:09,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:09,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:09,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:10,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:10,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-28 12:48:10,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:48:10,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 970 [2020-10-28 12:48:10,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:10,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:10,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:48:10,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:48:10,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 12:48:10,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:10,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:48:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:10,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:10,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:10,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:48:10,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:10,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:48:10,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:10,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:48:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:48:10,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:10,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:48:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:10,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:10,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:10,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 12:48:10,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:10,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 12:48:10,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:10,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:10,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:10,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:48:10,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 12:48:10,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:10,521 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:48:10,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758687089] [2020-10-28 12:48:10,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:48:10,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:48:10,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506886939] [2020-10-28 12:48:10,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:48:10,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:48:10,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:48:10,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:48:10,524 INFO L87 Difference]: Start difference. First operand 1689 states and 2485 transitions. Second operand 7 states. [2020-10-28 12:48:13,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:48:13,513 INFO L93 Difference]: Finished difference Result 4150 states and 6147 transitions. [2020-10-28 12:48:13,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:48:13,514 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 124 [2020-10-28 12:48:13,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:48:13,531 INFO L225 Difference]: With dead ends: 4150 [2020-10-28 12:48:13,532 INFO L226 Difference]: Without dead ends: 2467 [2020-10-28 12:48:13,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:48:13,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2467 states. [2020-10-28 12:48:13,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2467 to 2443. [2020-10-28 12:48:13,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2443 states. [2020-10-28 12:48:13,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3399 transitions. [2020-10-28 12:48:13,652 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3399 transitions. Word has length 124 [2020-10-28 12:48:13,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:48:13,652 INFO L481 AbstractCegarLoop]: Abstraction has 2443 states and 3399 transitions. [2020-10-28 12:48:13,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:48:13,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3399 transitions. [2020-10-28 12:48:13,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-28 12:48:13,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:48:13,656 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:48:13,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:48:13,656 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:48:13,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:48:13,657 INFO L82 PathProgramCache]: Analyzing trace with hash 896334700, now seen corresponding path program 1 times [2020-10-28 12:48:13,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:48:13,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203900716] [2020-10-28 12:48:13,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:48:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:13,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:14,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:14,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 12:48:14,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:14,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-28 12:48:14,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:14,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:14,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:48:14,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:48:14,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:48:14,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:14,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:48:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:14,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:14,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:14,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:48:14,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:14,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:48:14,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:14,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:14,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:48:14,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:14,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:48:14,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:14,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:48:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:14,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:14,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:14,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:48:14,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:14,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-28 12:48:14,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:14,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:48:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:48:14,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:14,521 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:48:14,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203900716] [2020-10-28 12:48:14,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:48:14,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:48:14,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631404843] [2020-10-28 12:48:14,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:48:14,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:48:14,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:48:14,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:48:14,527 INFO L87 Difference]: Start difference. First operand 2443 states and 3399 transitions. Second operand 7 states. [2020-10-28 12:48:17,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:48:17,742 INFO L93 Difference]: Finished difference Result 5292 states and 7688 transitions. [2020-10-28 12:48:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:48:17,751 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2020-10-28 12:48:17,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:48:17,771 INFO L225 Difference]: With dead ends: 5292 [2020-10-28 12:48:17,771 INFO L226 Difference]: Without dead ends: 3037 [2020-10-28 12:48:17,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:48:17,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2020-10-28 12:48:17,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 2819. [2020-10-28 12:48:17,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2819 states. [2020-10-28 12:48:17,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3767 transitions. [2020-10-28 12:48:17,903 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3767 transitions. Word has length 125 [2020-10-28 12:48:17,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:48:17,904 INFO L481 AbstractCegarLoop]: Abstraction has 2819 states and 3767 transitions. [2020-10-28 12:48:17,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:48:17,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3767 transitions. [2020-10-28 12:48:17,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-10-28 12:48:17,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:48:17,912 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-28 12:48:17,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:48:17,912 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:48:17,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:48:17,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1892581748, now seen corresponding path program 1 times [2020-10-28 12:48:17,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:48:17,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312915143] [2020-10-28 12:48:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:48:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:18,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:18,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:18,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:18,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:18,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:20,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:21,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:22,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:23,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:23,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 305 [2020-10-28 12:48:23,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 12:48:23,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 12:48:23,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:23,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:23,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:48:23,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-10-28 12:48:23,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 12:48:23,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:23,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:48:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:23,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:23,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:23,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:48:23,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:23,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:48:23,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:23,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:23,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:23,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:23,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:23,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:23,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:48:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:23,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:23,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:23,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:48:23,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:23,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:48:23,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:23,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:23,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:23,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:23,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:23,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:23,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-28 12:48:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:23,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:23,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:23,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:48:23,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:23,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 12:48:23,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:23,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:23,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:48:23,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:23,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 12:48:23,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:23,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-28 12:48:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:23,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:23,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:23,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:23,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:48:23,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:48:23,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-28 12:48:23,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:23,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:23,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:48:23,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:23,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:48:23,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:23,542 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 140 proven. 3 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2020-10-28 12:48:23,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312915143] [2020-10-28 12:48:23,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:48:23,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 12:48:23,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550938844] [2020-10-28 12:48:23,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 12:48:23,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:48:23,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 12:48:23,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:48:23,545 INFO L87 Difference]: Start difference. First operand 2819 states and 3767 transitions. Second operand 6 states. [2020-10-28 12:48:27,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:48:27,309 INFO L93 Difference]: Finished difference Result 7108 states and 10138 transitions. [2020-10-28 12:48:27,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:48:27,311 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 289 [2020-10-28 12:48:27,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:48:27,341 INFO L225 Difference]: With dead ends: 7108 [2020-10-28 12:48:27,342 INFO L226 Difference]: Without dead ends: 4845 [2020-10-28 12:48:27,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:48:27,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4845 states. [2020-10-28 12:48:27,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4845 to 4479. [2020-10-28 12:48:27,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4479 states. [2020-10-28 12:48:27,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4479 states to 4479 states and 5933 transitions. [2020-10-28 12:48:27,504 INFO L78 Accepts]: Start accepts. Automaton has 4479 states and 5933 transitions. Word has length 289 [2020-10-28 12:48:27,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:48:27,505 INFO L481 AbstractCegarLoop]: Abstraction has 4479 states and 5933 transitions. [2020-10-28 12:48:27,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 12:48:27,505 INFO L276 IsEmpty]: Start isEmpty. Operand 4479 states and 5933 transitions. [2020-10-28 12:48:27,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-10-28 12:48:27,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:48:27,515 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-28 12:48:27,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:48:27,515 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:48:27,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:48:27,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1711359092, now seen corresponding path program 1 times [2020-10-28 12:48:27,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:48:27,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527024484] [2020-10-28 12:48:27,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:48:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:27,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:27,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:28,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:28,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:32,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:32,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-28 12:48:32,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:48:32,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-28 12:48:32,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:32,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:32,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:32,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 12:48:32,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 12:48:32,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:32,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:48:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:32,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:32,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:32,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:48:32,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:32,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:48:32,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:32,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:32,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:32,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:48:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:32,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:32,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:32,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:48:32,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:32,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-28 12:48:32,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:32,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:32,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:48:32,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:32,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:48:32,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:48:32,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-28 12:48:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:32,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:33,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:33,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 12:48:33,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:33,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-28 12:48:33,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:33,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:33,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:33,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:48:33,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 12:48:33,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:33,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-28 12:48:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:33,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:33,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:33,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:48:33,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:33,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:48:33,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:33,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:33,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:33,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 12:48:33,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:33,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:33,577 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 217 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-28 12:48:33,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527024484] [2020-10-28 12:48:33,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:48:33,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:48:33,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713695942] [2020-10-28 12:48:33,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:48:33,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:48:33,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:48:33,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:48:33,582 INFO L87 Difference]: Start difference. First operand 4479 states and 5933 transitions. Second operand 7 states. [2020-10-28 12:48:37,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:48:37,172 INFO L93 Difference]: Finished difference Result 9172 states and 12256 transitions. [2020-10-28 12:48:37,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:48:37,174 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 321 [2020-10-28 12:48:37,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:48:37,194 INFO L225 Difference]: With dead ends: 9172 [2020-10-28 12:48:37,195 INFO L226 Difference]: Without dead ends: 3947 [2020-10-28 12:48:37,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:48:37,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3947 states. [2020-10-28 12:48:37,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3947 to 3545. [2020-10-28 12:48:37,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3545 states. [2020-10-28 12:48:37,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3545 states to 3545 states and 3957 transitions. [2020-10-28 12:48:37,341 INFO L78 Accepts]: Start accepts. Automaton has 3545 states and 3957 transitions. Word has length 321 [2020-10-28 12:48:37,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:48:37,342 INFO L481 AbstractCegarLoop]: Abstraction has 3545 states and 3957 transitions. [2020-10-28 12:48:37,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:48:37,342 INFO L276 IsEmpty]: Start isEmpty. Operand 3545 states and 3957 transitions. [2020-10-28 12:48:37,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2020-10-28 12:48:37,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:48:37,356 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:48:37,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:48:37,356 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:48:37,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:48:37,357 INFO L82 PathProgramCache]: Analyzing trace with hash -2139146172, now seen corresponding path program 1 times [2020-10-28 12:48:37,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:48:37,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292581317] [2020-10-28 12:48:37,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:48:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:37,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:37,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:39,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:42,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:42,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 495 [2020-10-28 12:48:42,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:48:42,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4622 [2020-10-28 12:48:42,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:42,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:42,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:42,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-28 12:48:42,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-28 12:48:42,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:42,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:48:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:42,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:42,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:42,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:48:42,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:42,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 12:48:42,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:42,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:42,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:42,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:42,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:42,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:42,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:48:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:42,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:42,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:42,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:48:42,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:42,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:48:42,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:42,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:42,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:42,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:42,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:42,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:42,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:48:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:42,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:42,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:42,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:48:42,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:42,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-28 12:48:42,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:42,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:42,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:48:42,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:42,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:48:42,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:42,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:48:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:42,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:42,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:42,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:48:42,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:42,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-28 12:48:42,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:42,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:42,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:42,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:48:42,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 12:48:42,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:42,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-10-28 12:48:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:42,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:43,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:43,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:48:43,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:43,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:48:43,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:43,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 12:48:43,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:43,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 402 proven. 72 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2020-10-28 12:48:43,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292581317] [2020-10-28 12:48:43,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:48:43,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:48:43,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052034741] [2020-10-28 12:48:43,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:48:43,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:48:43,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:48:43,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:48:43,318 INFO L87 Difference]: Start difference. First operand 3545 states and 3957 transitions. Second operand 7 states. [2020-10-28 12:48:45,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:48:45,663 INFO L93 Difference]: Finished difference Result 7092 states and 7984 transitions. [2020-10-28 12:48:45,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:48:45,664 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 477 [2020-10-28 12:48:45,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:48:45,684 INFO L225 Difference]: With dead ends: 7092 [2020-10-28 12:48:45,684 INFO L226 Difference]: Without dead ends: 3735 [2020-10-28 12:48:45,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:48:45,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2020-10-28 12:48:45,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 3731. [2020-10-28 12:48:45,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3731 states. [2020-10-28 12:48:45,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 4172 transitions. [2020-10-28 12:48:45,814 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 4172 transitions. Word has length 477 [2020-10-28 12:48:45,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:48:45,816 INFO L481 AbstractCegarLoop]: Abstraction has 3731 states and 4172 transitions. [2020-10-28 12:48:45,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:48:45,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 4172 transitions. [2020-10-28 12:48:45,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2020-10-28 12:48:45,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:48:45,835 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:48:45,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:48:45,835 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:48:45,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:48:45,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1536105444, now seen corresponding path program 2 times [2020-10-28 12:48:45,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:48:45,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380861907] [2020-10-28 12:48:45,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:48:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:46,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:46,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:47,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:48,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:49,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:51,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:51,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 607 [2020-10-28 12:48:51,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:48:51,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-28 12:48:51,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:51,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:51,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:48:51,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-28 12:48:51,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-28 12:48:51,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:51,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:48:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:51,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:51,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:51,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:48:51,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:51,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:48:51,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:51,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:51,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:51,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:51,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:48:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:51,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:51,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:51,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:48:51,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:51,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:48:51,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:51,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:51,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:51,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:51,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:51,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:51,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:48:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:51,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:51,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:51,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:48:51,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:51,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 12:48:51,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:51,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:48:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:51,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:48:51,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:48:51,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:48:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:51,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:51,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:51,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:51,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:48:51,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:48:51,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-28 12:48:51,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:51,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:51,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:51,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:48:51,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 12:48:51,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:51,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-28 12:48:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:51,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:52,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:52,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:48:52,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:52,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-28 12:48:52,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:52,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:52,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:52,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:48:52,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 12:48:52,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:52,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-28 12:48:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:52,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:52,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:52,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:48:52,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:52,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:48:52,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:52,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:52,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:52,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 12:48:52,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:52,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:52,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 665 proven. 144 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2020-10-28 12:48:52,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380861907] [2020-10-28 12:48:52,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:48:52,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:48:52,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981857944] [2020-10-28 12:48:52,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:48:52,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:48:52,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:48:52,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:48:52,587 INFO L87 Difference]: Start difference. First operand 3731 states and 4172 transitions. Second operand 8 states. [2020-10-28 12:48:56,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:48:56,675 INFO L93 Difference]: Finished difference Result 7486 states and 8405 transitions. [2020-10-28 12:48:56,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 12:48:56,681 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 587 [2020-10-28 12:48:56,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:48:56,703 INFO L225 Difference]: With dead ends: 7486 [2020-10-28 12:48:56,703 INFO L226 Difference]: Without dead ends: 4127 [2020-10-28 12:48:56,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 12:48:56,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4127 states. [2020-10-28 12:48:56,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4127 to 4113. [2020-10-28 12:48:56,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4113 states. [2020-10-28 12:48:56,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4113 states to 4113 states and 4570 transitions. [2020-10-28 12:48:56,854 INFO L78 Accepts]: Start accepts. Automaton has 4113 states and 4570 transitions. Word has length 587 [2020-10-28 12:48:56,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:48:56,856 INFO L481 AbstractCegarLoop]: Abstraction has 4113 states and 4570 transitions. [2020-10-28 12:48:56,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:48:56,856 INFO L276 IsEmpty]: Start isEmpty. Operand 4113 states and 4570 transitions. [2020-10-28 12:48:56,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2020-10-28 12:48:56,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:48:56,878 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-28 12:48:56,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:48:56,878 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:48:56,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:48:56,879 INFO L82 PathProgramCache]: Analyzing trace with hash 646349116, now seen corresponding path program 1 times [2020-10-28 12:48:56,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:48:56,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202664815] [2020-10-28 12:48:56,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:48:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:57,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:58,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:58,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 640 [2020-10-28 12:48:58,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:58,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1062 [2020-10-28 12:48:58,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:58,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:58,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:58,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:48:58,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:48:58,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:58,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:48:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:58,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:58,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:58,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:48:58,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:58,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:48:58,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:58,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:58,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:58,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:48:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:58,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:58,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:58,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:48:58,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:58,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:48:58,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:58,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:58,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:58,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:48:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:58,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:58,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:58,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:48:58,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:58,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:48:58,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:58,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:58,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:58,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:58,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:58,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:58,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:48:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:58,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:58,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:58,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:48:58,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:58,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:48:58,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:58,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:58,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:48:58,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:58,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:48:58,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:58,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:48:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:58,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:58,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:58,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:48:58,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:58,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-28 12:48:58,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:58,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:58,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:48:58,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:48:58,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:48:58,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:58,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:48:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:48:58,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:48:58,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:48:58,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:48:58,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:48:58,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 12:48:58,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:48:58,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:48:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:48:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:48:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:48:58,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:48:59,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 515 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-10-28 12:48:59,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202664815] [2020-10-28 12:48:59,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:48:59,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:48:59,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769544334] [2020-10-28 12:48:59,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:48:59,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:48:59,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:48:59,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:48:59,241 INFO L87 Difference]: Start difference. First operand 4113 states and 4570 transitions. Second operand 7 states. [2020-10-28 12:49:03,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:49:03,139 INFO L93 Difference]: Finished difference Result 8232 states and 9205 transitions. [2020-10-28 12:49:03,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:49:03,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 620 [2020-10-28 12:49:03,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:49:03,160 INFO L225 Difference]: With dead ends: 8232 [2020-10-28 12:49:03,161 INFO L226 Difference]: Without dead ends: 4491 [2020-10-28 12:49:03,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:49:03,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4491 states. [2020-10-28 12:49:03,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4491 to 4479. [2020-10-28 12:49:03,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4479 states. [2020-10-28 12:49:03,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4479 states to 4479 states and 4951 transitions. [2020-10-28 12:49:03,284 INFO L78 Accepts]: Start accepts. Automaton has 4479 states and 4951 transitions. Word has length 620 [2020-10-28 12:49:03,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:49:03,286 INFO L481 AbstractCegarLoop]: Abstraction has 4479 states and 4951 transitions. [2020-10-28 12:49:03,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:49:03,286 INFO L276 IsEmpty]: Start isEmpty. Operand 4479 states and 4951 transitions. [2020-10-28 12:49:03,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 715 [2020-10-28 12:49:03,296 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:03,297 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:49:03,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:49:03,297 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:03,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:03,298 INFO L82 PathProgramCache]: Analyzing trace with hash 932565956, now seen corresponding path program 1 times [2020-10-28 12:49:03,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:03,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133505065] [2020-10-28 12:49:03,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:03,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:03,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:04,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:08,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:08,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 736 [2020-10-28 12:49:08,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:49:08,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-28 12:49:08,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:08,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-28 12:49:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:49:08,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:08,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:49:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:08,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:08,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:08,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:49:08,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:08,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:49:08,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:08,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:08,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:08,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:08,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:49:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:08,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:08,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:08,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:49:08,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:08,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:49:08,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:08,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:08,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:08,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:08,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:08,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:08,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:49:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:08,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:08,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:08,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:49:08,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:49:08,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:08,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:08,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:08,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:08,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:08,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:49:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:08,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:08,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:08,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:49:08,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:08,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 12:49:08,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:08,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:08,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:49:08,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:08,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 12:49:08,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:08,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:49:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:09,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:09,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:09,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:49:09,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:09,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-28 12:49:09,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:09,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:09,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:09,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:49:09,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:49:09,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:09,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-28 12:49:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:09,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:09,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:09,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:49:09,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:09,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:49:09,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:09,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:09,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:09,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:49:09,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:09,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:09,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-28 12:49:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:09,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:09,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:09,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:49:09,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:09,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:49:09,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:09,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 12:49:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:09,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:09,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1597 backedges. 625 proven. 145 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2020-10-28 12:49:09,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133505065] [2020-10-28 12:49:09,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:49:09,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:49:09,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303970130] [2020-10-28 12:49:09,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:49:09,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:49:09,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:49:09,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:49:09,910 INFO L87 Difference]: Start difference. First operand 4479 states and 4951 transitions. Second operand 7 states. [2020-10-28 12:49:12,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:49:12,567 INFO L93 Difference]: Finished difference Result 8962 states and 9922 transitions. [2020-10-28 12:49:12,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:49:12,573 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 714 [2020-10-28 12:49:12,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:49:12,587 INFO L225 Difference]: With dead ends: 8962 [2020-10-28 12:49:12,587 INFO L226 Difference]: Without dead ends: 4671 [2020-10-28 12:49:12,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:49:12,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4671 states. [2020-10-28 12:49:12,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4671 to 4659. [2020-10-28 12:49:12,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4659 states. [2020-10-28 12:49:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4659 states to 4659 states and 5031 transitions. [2020-10-28 12:49:12,698 INFO L78 Accepts]: Start accepts. Automaton has 4659 states and 5031 transitions. Word has length 714 [2020-10-28 12:49:12,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:49:12,699 INFO L481 AbstractCegarLoop]: Abstraction has 4659 states and 5031 transitions. [2020-10-28 12:49:12,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:49:12,699 INFO L276 IsEmpty]: Start isEmpty. Operand 4659 states and 5031 transitions. [2020-10-28 12:49:12,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 783 [2020-10-28 12:49:12,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:12,711 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:49:12,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:49:12,712 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:12,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:12,712 INFO L82 PathProgramCache]: Analyzing trace with hash -940297780, now seen corresponding path program 1 times [2020-10-28 12:49:12,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:12,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327680722] [2020-10-28 12:49:12,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:12,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:13,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:14,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:17,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:17,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 804 [2020-10-28 12:49:17,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:49:17,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-10-28 12:49:17,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:17,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:17,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:17,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:49:17,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-28 12:49:17,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:18,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:49:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:18,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:18,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:18,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:49:18,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:18,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:49:18,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:18,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:18,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:18,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:18,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:18,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:18,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:49:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:18,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:18,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:18,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:49:18,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:18,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:49:18,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:18,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:18,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:18,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:18,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:18,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:18,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:49:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:18,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:18,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:18,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:49:18,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:18,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:49:18,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:18,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:18,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:18,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:18,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:18,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:18,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:49:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:18,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:18,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:18,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:49:18,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:18,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:49:18,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:18,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:18,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:18,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:18,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:18,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:18,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:49:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:18,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:18,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:18,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:49:18,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:18,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 12:49:18,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:18,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:49:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:49:18,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:18,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:49:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:18,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:18,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:18,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 12:49:18,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:18,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-28 12:49:18,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:18,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:18,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:18,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:49:18,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-28 12:49:18,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:18,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2020-10-28 12:49:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:18,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:18,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:18,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:49:18,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:18,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:49:18,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:18,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:18,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:18,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 12:49:18,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:18,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:19,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 778 proven. 72 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2020-10-28 12:49:19,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327680722] [2020-10-28 12:49:19,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:49:19,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:49:19,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671991242] [2020-10-28 12:49:19,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:49:19,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:49:19,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:49:19,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:49:19,328 INFO L87 Difference]: Start difference. First operand 4659 states and 5031 transitions. Second operand 7 states. [2020-10-28 12:49:21,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:49:21,951 INFO L93 Difference]: Finished difference Result 9703 states and 10621 transitions. [2020-10-28 12:49:21,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:49:21,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 782 [2020-10-28 12:49:21,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:49:21,974 INFO L225 Difference]: With dead ends: 9703 [2020-10-28 12:49:21,974 INFO L226 Difference]: Without dead ends: 5416 [2020-10-28 12:49:21,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-28 12:49:21,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5416 states. [2020-10-28 12:49:22,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5416 to 5223. [2020-10-28 12:49:22,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5223 states. [2020-10-28 12:49:22,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 5701 transitions. [2020-10-28 12:49:22,111 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 5701 transitions. Word has length 782 [2020-10-28 12:49:22,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:49:22,113 INFO L481 AbstractCegarLoop]: Abstraction has 5223 states and 5701 transitions. [2020-10-28 12:49:22,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:49:22,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 5701 transitions. [2020-10-28 12:49:22,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2020-10-28 12:49:22,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:22,127 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:49:22,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:49:22,128 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:22,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:22,128 INFO L82 PathProgramCache]: Analyzing trace with hash -9378368, now seen corresponding path program 1 times [2020-10-28 12:49:22,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:22,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204146902] [2020-10-28 12:49:22,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:22,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:23,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:23,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 815 [2020-10-28 12:49:23,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:23,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1057 [2020-10-28 12:49:23,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:23,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:23,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:23,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-28 12:49:23,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:49:23,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:23,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:49:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:23,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:23,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:23,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:49:23,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:23,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:49:23,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:23,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:23,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:23,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:23,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:23,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:23,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:49:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:23,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:23,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:23,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:49:23,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:23,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:49:23,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:23,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:23,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:23,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:23,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:23,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:23,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:49:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:23,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:23,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:23,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:49:23,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:23,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:49:23,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:23,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:23,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:23,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:23,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:23,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:23,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:49:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:23,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:23,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:23,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:49:23,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:23,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:49:23,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:23,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:23,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:23,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:23,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:23,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:23,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:49:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:23,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:23,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:23,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:49:23,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:23,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:49:23,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:23,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:23,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:23,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:23,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:23,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:23,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:49:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:23,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:23,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:23,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-28 12:49:23,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:23,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-28 12:49:23,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:23,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:49:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-28 12:49:23,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:23,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-28 12:49:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:23,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:24,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:24,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:49:24,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:24,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 12:49:24,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:24,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:24,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:24,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:49:24,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:49:24,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:24,215 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2020-10-28 12:49:24,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 634 proven. 2 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2020-10-28 12:49:24,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204146902] [2020-10-28 12:49:24,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:49:24,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:49:24,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166453972] [2020-10-28 12:49:24,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:49:24,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:49:24,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:49:24,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:49:24,747 INFO L87 Difference]: Start difference. First operand 5223 states and 5701 transitions. Second operand 7 states. [2020-10-28 12:49:27,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:49:27,056 INFO L93 Difference]: Finished difference Result 10080 states and 11031 transitions. [2020-10-28 12:49:27,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:49:27,057 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 793 [2020-10-28 12:49:27,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:49:27,072 INFO L225 Difference]: With dead ends: 10080 [2020-10-28 12:49:27,072 INFO L226 Difference]: Without dead ends: 5229 [2020-10-28 12:49:27,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:49:27,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5229 states. [2020-10-28 12:49:27,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5229 to 5223. [2020-10-28 12:49:27,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5223 states. [2020-10-28 12:49:27,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 5691 transitions. [2020-10-28 12:49:27,189 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 5691 transitions. Word has length 793 [2020-10-28 12:49:27,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:49:27,190 INFO L481 AbstractCegarLoop]: Abstraction has 5223 states and 5691 transitions. [2020-10-28 12:49:27,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:49:27,191 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 5691 transitions. [2020-10-28 12:49:27,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2020-10-28 12:49:27,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:27,202 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-10-28 12:49:27,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 12:49:27,202 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:27,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:27,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1784597688, now seen corresponding path program 1 times [2020-10-28 12:49:27,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:27,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524292013] [2020-10-28 12:49:27,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:27,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:28,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:28,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 819 [2020-10-28 12:49:28,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:28,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 820 [2020-10-28 12:49:28,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:28,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:28,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:28,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-28 12:49:28,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:49:28,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:28,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:49:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:28,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:28,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:28,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:49:28,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:28,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:49:28,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:28,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:28,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:28,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:28,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:28,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:28,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:49:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:28,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:28,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:28,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:49:28,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:28,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:49:28,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:28,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:28,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:28,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:28,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:28,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:28,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:49:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:28,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:28,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:28,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:49:28,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:28,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:49:28,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:28,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:28,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:28,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:28,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:28,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:28,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:49:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:28,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:28,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:28,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:49:28,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:28,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:49:28,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:28,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:28,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:28,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:28,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:28,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:28,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:49:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:28,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:28,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:28,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:49:28,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:28,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:49:28,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:28,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:28,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:28,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:28,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:28,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:28,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:49:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:28,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:28,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:28,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:49:28,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:28,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:49:28,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:28,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:28,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:28,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:49:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:28,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:28,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:28,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:49:28,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:28,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:49:28,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:28,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:28,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:49:28,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:28,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 12:49:28,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:28,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:49:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:28,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:28,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:28,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:49:28,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:28,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 12:49:28,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:28,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:28,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:28,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:49:28,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:49:28,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:29,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2114 backedges. 753 proven. 2 refuted. 0 times theorem prover too weak. 1359 trivial. 0 not checked. [2020-10-28 12:49:29,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524292013] [2020-10-28 12:49:29,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:49:29,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:49:29,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752821943] [2020-10-28 12:49:29,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:49:29,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:49:29,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:49:29,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:49:29,211 INFO L87 Difference]: Start difference. First operand 5223 states and 5691 transitions. Second operand 7 states. [2020-10-28 12:49:31,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:49:31,747 INFO L93 Difference]: Finished difference Result 10262 states and 11217 transitions. [2020-10-28 12:49:31,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:49:31,755 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 795 [2020-10-28 12:49:31,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:49:31,781 INFO L225 Difference]: With dead ends: 10262 [2020-10-28 12:49:31,782 INFO L226 Difference]: Without dead ends: 5411 [2020-10-28 12:49:31,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-28 12:49:31,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5411 states. [2020-10-28 12:49:31,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5411 to 5407. [2020-10-28 12:49:31,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5407 states. [2020-10-28 12:49:31,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5407 states to 5407 states and 5885 transitions. [2020-10-28 12:49:31,902 INFO L78 Accepts]: Start accepts. Automaton has 5407 states and 5885 transitions. Word has length 795 [2020-10-28 12:49:31,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:49:31,903 INFO L481 AbstractCegarLoop]: Abstraction has 5407 states and 5885 transitions. [2020-10-28 12:49:31,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:49:31,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5407 states and 5885 transitions. [2020-10-28 12:49:31,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2020-10-28 12:49:31,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:31,915 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2020-10-28 12:49:31,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 12:49:31,915 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:31,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:31,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1721069892, now seen corresponding path program 1 times [2020-10-28 12:49:31,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:31,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891016350] [2020-10-28 12:49:31,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:32,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:33,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:35,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:35,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 860 [2020-10-28 12:49:35,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:49:35,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3260 [2020-10-28 12:49:35,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:35,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 12:49:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-28 12:49:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-28 12:49:35,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:35,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:49:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:35,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:35,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:35,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:49:35,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:35,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:49:35,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:35,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:35,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:35,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:49:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:35,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:35,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:35,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:49:35,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:35,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:49:35,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:35,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:35,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:35,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:35,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:35,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:35,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:49:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:35,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:35,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:35,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:49:35,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:35,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:49:35,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:35,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:35,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:35,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:49:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:35,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:35,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:35,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:49:35,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:35,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:49:35,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:35,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:35,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:35,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:35,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:35,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:35,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:49:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:35,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:35,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:35,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:49:35,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:35,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:49:35,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:35,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:35,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:35,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:35,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:35,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:35,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:49:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:35,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:35,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:35,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:49:35,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:35,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:49:35,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:35,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:35,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:35,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:35,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:35,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:35,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:49:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:35,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:36,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:36,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:49:36,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:36,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:49:36,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:36,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:36,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:49:36,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:36,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 12:49:36,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:36,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:49:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:36,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:36,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:36,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-28 12:49:36,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:36,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 12:49:36,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:36,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:36,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 12:49:36,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:49:36,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 12:49:36,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 872 proven. 49 refuted. 0 times theorem prover too weak. 1359 trivial. 0 not checked. [2020-10-28 12:49:36,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891016350] [2020-10-28 12:49:36,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:49:36,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:49:36,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39871184] [2020-10-28 12:49:36,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:49:36,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:49:36,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:49:36,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:49:36,682 INFO L87 Difference]: Start difference. First operand 5407 states and 5885 transitions. Second operand 8 states. [2020-10-28 12:49:39,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:49:39,820 INFO L93 Difference]: Finished difference Result 13418 states and 14859 transitions. [2020-10-28 12:49:39,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:49:39,824 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 836 [2020-10-28 12:49:39,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:49:39,848 INFO L225 Difference]: With dead ends: 13418 [2020-10-28 12:49:39,848 INFO L226 Difference]: Without dead ends: 8189 [2020-10-28 12:49:39,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:49:39,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8189 states. [2020-10-28 12:49:40,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8189 to 7989. [2020-10-28 12:49:40,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7989 states. [2020-10-28 12:49:40,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7989 states to 7989 states and 8790 transitions. [2020-10-28 12:49:40,038 INFO L78 Accepts]: Start accepts. Automaton has 7989 states and 8790 transitions. Word has length 836 [2020-10-28 12:49:40,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:49:40,039 INFO L481 AbstractCegarLoop]: Abstraction has 7989 states and 8790 transitions. [2020-10-28 12:49:40,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:49:40,039 INFO L276 IsEmpty]: Start isEmpty. Operand 7989 states and 8790 transitions. [2020-10-28 12:49:40,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2020-10-28 12:49:40,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:40,055 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 12:49:40,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 12:49:40,056 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:40,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:40,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1068747440, now seen corresponding path program 1 times [2020-10-28 12:49:40,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:40,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103926503] [2020-10-28 12:49:40,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:40,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:42,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:43,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:43,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 979 [2020-10-28 12:49:43,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:49:43,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3291 [2020-10-28 12:49:43,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:43,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:43,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 12:49:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 850 [2020-10-28 12:49:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 12:49:43,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:43,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:49:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:43,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:43,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:43,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:49:43,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:43,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:49:43,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:43,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:43,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:43,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:43,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:43,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:43,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:49:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:43,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:43,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:43,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:49:43,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:43,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:49:43,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:43,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:43,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:43,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:43,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:43,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:43,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:49:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:43,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:43,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:43,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:49:43,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:43,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:49:43,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:43,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:43,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:43,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:43,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:43,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:44,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:49:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:44,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:44,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:44,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:49:44,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:44,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:49:44,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:44,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:44,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:44,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:44,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:44,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:44,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:49:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:44,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:44,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:44,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:49:44,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:44,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:49:44,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:44,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:44,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:44,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:49:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:44,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:44,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:44,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-28 12:49:44,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:44,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:49:44,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:44,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:44,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:44,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:44,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:44,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:44,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-28 12:49:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:44,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:44,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:44,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 12:49:44,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:44,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 12:49:44,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:44,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:49:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-28 12:49:44,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:44,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 838 [2020-10-28 12:49:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:44,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:44,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:44,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:49:44,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:44,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 12:49:44,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:44,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:44,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 12:49:44,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:49:44,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:49:44,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:45,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2562 backedges. 706 proven. 49 refuted. 0 times theorem prover too weak. 1807 trivial. 0 not checked. [2020-10-28 12:49:45,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103926503] [2020-10-28 12:49:45,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:49:45,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:49:45,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606229868] [2020-10-28 12:49:45,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:49:45,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:49:45,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:49:45,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:49:45,123 INFO L87 Difference]: Start difference. First operand 7989 states and 8790 transitions. Second operand 8 states. [2020-10-28 12:49:48,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:49:48,630 INFO L93 Difference]: Finished difference Result 17284 states and 19213 transitions. [2020-10-28 12:49:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 12:49:48,631 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 955 [2020-10-28 12:49:48,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:49:48,653 INFO L225 Difference]: With dead ends: 17284 [2020-10-28 12:49:48,654 INFO L226 Difference]: Without dead ends: 9479 [2020-10-28 12:49:48,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-28 12:49:48,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9479 states. [2020-10-28 12:49:48,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9479 to 8555. [2020-10-28 12:49:48,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8555 states. [2020-10-28 12:49:48,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8555 states to 8555 states and 9514 transitions. [2020-10-28 12:49:48,850 INFO L78 Accepts]: Start accepts. Automaton has 8555 states and 9514 transitions. Word has length 955 [2020-10-28 12:49:48,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:49:48,852 INFO L481 AbstractCegarLoop]: Abstraction has 8555 states and 9514 transitions. [2020-10-28 12:49:48,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:49:48,852 INFO L276 IsEmpty]: Start isEmpty. Operand 8555 states and 9514 transitions. [2020-10-28 12:49:48,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1088 [2020-10-28 12:49:48,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:48,873 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:49:48,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 12:49:48,873 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:48,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:48,874 INFO L82 PathProgramCache]: Analyzing trace with hash -872335796, now seen corresponding path program 1 times [2020-10-28 12:49:48,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:48,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717002452] [2020-10-28 12:49:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:49,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:49,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:51,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:52,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:53,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:54,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:54,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1115 [2020-10-28 12:49:54,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:49:54,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-28 12:49:54,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:54,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:54,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:54,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 956 [2020-10-28 12:49:54,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-28 12:49:54,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:54,338 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:49:54,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:49:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:54,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:54,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:54,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:49:54,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:54,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:49:54,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:54,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:54,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:54,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:49:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:54,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:54,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:54,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:49:54,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:54,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:49:54,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:54,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:54,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:54,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:54,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:54,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:54,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:49:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:54,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:54,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:54,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:49:54,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:54,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:49:54,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:54,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:54,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:54,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:54,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:54,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:54,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:49:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:54,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:54,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:54,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:49:54,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:54,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:49:54,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:54,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:54,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:54,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:54,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:54,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:54,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:49:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:54,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:54,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:54,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:49:54,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:54,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:49:54,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:54,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:54,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:54,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:54,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:54,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:49:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:54,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:54,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:54,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:49:54,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:54,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 12:49:54,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:54,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:54,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:54,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:54,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:54,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:54,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:49:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:54,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:54,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:54,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:49:54,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:54,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:49:54,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:54,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:54,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:54,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:54,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:54,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:54,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:49:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:54,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:54,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:54,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:49:54,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:54,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:49:54,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:54,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:54,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:54,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:54,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:54,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:54,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:49:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:54,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:54,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:54,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:49:54,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:54,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 12:49:54,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:54,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:54,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:49:54,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:54,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 12:49:54,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:54,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2020-10-28 12:49:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:54,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:54,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:54,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-28 12:49:54,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:54,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 12:49:54,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:54,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:54,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:54,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:49:54,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:49:54,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:55,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3761 backedges. 1162 proven. 2 refuted. 0 times theorem prover too weak. 2597 trivial. 0 not checked. [2020-10-28 12:49:55,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717002452] [2020-10-28 12:49:55,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:49:55,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:49:55,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235633408] [2020-10-28 12:49:55,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:49:55,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:49:55,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:49:55,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:49:55,815 INFO L87 Difference]: Start difference. First operand 8555 states and 9514 transitions. Second operand 7 states. [2020-10-28 12:49:58,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:49:58,132 INFO L93 Difference]: Finished difference Result 17710 states and 19958 transitions. [2020-10-28 12:49:58,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:49:58,132 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1087 [2020-10-28 12:49:58,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:49:58,151 INFO L225 Difference]: With dead ends: 17710 [2020-10-28 12:49:58,151 INFO L226 Difference]: Without dead ends: 7681 [2020-10-28 12:49:58,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:49:58,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7681 states. [2020-10-28 12:49:58,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7681 to 7619. [2020-10-28 12:49:58,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7619 states. [2020-10-28 12:49:58,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7619 states to 7619 states and 8360 transitions. [2020-10-28 12:49:58,314 INFO L78 Accepts]: Start accepts. Automaton has 7619 states and 8360 transitions. Word has length 1087 [2020-10-28 12:49:58,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:49:58,315 INFO L481 AbstractCegarLoop]: Abstraction has 7619 states and 8360 transitions. [2020-10-28 12:49:58,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:49:58,315 INFO L276 IsEmpty]: Start isEmpty. Operand 7619 states and 8360 transitions. [2020-10-28 12:49:58,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1089 [2020-10-28 12:49:58,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:58,337 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-28 12:49:58,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 12:49:58,338 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:58,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:58,339 INFO L82 PathProgramCache]: Analyzing trace with hash -584456228, now seen corresponding path program 1 times [2020-10-28 12:49:58,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:58,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539254592] [2020-10-28 12:49:58,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:58,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:01,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:01,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:01,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1114 [2020-10-28 12:50:01,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:50:01,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3116 [2020-10-28 12:50:01,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:01,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:01,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 12:50:01,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 985 [2020-10-28 12:50:01,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 12:50:01,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:01,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:01,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:01,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:01,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:01,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:01,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:50:01,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:01,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:01,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:01,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:01,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:01,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:01,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:02,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:02,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:50:02,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:02,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:50:02,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:02,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:02,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:02,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:02,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:02,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:02,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:50:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:02,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:02,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:02,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:50:02,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:02,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:50:02,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:02,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:02,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:02,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:50:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:02,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:02,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:02,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:50:02,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:02,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:50:02,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:02,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:02,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:02,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:02,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:02,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:02,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:50:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:02,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:02,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:02,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:50:02,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:02,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-28 12:50:02,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:02,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:02,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:02,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:50:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:02,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:02,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:02,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-28 12:50:02,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:02,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:50:02,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:02,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:02,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:02,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-28 12:50:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:02,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:02,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:02,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 12:50:02,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:02,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 12:50:02,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:02,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:02,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:02,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 838 [2020-10-28 12:50:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:02,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:02,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:02,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:50:02,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:02,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 12:50:02,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:02,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:02,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:02,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:02,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:50:02,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:02,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-28 12:50:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:02,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:02,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:02,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:50:02,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:02,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-28 12:50:02,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:02,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:02,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 12:50:02,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:02,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:50:02,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3414 backedges. 824 proven. 50 refuted. 0 times theorem prover too weak. 2540 trivial. 0 not checked. [2020-10-28 12:50:03,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539254592] [2020-10-28 12:50:03,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:03,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:50:03,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104097352] [2020-10-28 12:50:03,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:50:03,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:03,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:50:03,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:50:03,676 INFO L87 Difference]: Start difference. First operand 7619 states and 8360 transitions. Second operand 8 states. [2020-10-28 12:50:07,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:07,236 INFO L93 Difference]: Finished difference Result 17466 states and 19334 transitions. [2020-10-28 12:50:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:50:07,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1088 [2020-10-28 12:50:07,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:07,263 INFO L225 Difference]: With dead ends: 17466 [2020-10-28 12:50:07,263 INFO L226 Difference]: Without dead ends: 10029 [2020-10-28 12:50:07,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:50:07,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10029 states. [2020-10-28 12:50:07,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10029 to 9833. [2020-10-28 12:50:07,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9833 states. [2020-10-28 12:50:07,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9833 states to 9833 states and 10837 transitions. [2020-10-28 12:50:07,495 INFO L78 Accepts]: Start accepts. Automaton has 9833 states and 10837 transitions. Word has length 1088 [2020-10-28 12:50:07,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:07,497 INFO L481 AbstractCegarLoop]: Abstraction has 9833 states and 10837 transitions. [2020-10-28 12:50:07,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:50:07,497 INFO L276 IsEmpty]: Start isEmpty. Operand 9833 states and 10837 transitions. [2020-10-28 12:50:07,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1117 [2020-10-28 12:50:07,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:07,526 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:50:07,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 12:50:07,527 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:07,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:07,527 INFO L82 PathProgramCache]: Analyzing trace with hash -826335312, now seen corresponding path program 1 times [2020-10-28 12:50:07,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:07,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101293457] [2020-10-28 12:50:07,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:07,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:08,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:09,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:10,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:12,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:12,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1144 [2020-10-28 12:50:12,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:50:12,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-28 12:50:12,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:12,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:12,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:12,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-28 12:50:12,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 12:50:12,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:12,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:12,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:12,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:12,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:12,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:12,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:50:12,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:12,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:12,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:12,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:12,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:12,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:12,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:13,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:13,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:13,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:50:13,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:13,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:50:13,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:13,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:13,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:13,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:13,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:13,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:13,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:50:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:13,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:13,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:13,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:50:13,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:13,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:50:13,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:13,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:13,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:13,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:50:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:13,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:13,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:13,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:50:13,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:13,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:50:13,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:13,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:13,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:13,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:13,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:13,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:13,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:50:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:13,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:13,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:13,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:50:13,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:13,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:50:13,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:13,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:13,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:13,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:13,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:13,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:13,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:50:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:13,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:13,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:13,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:50:13,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:13,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 12:50:13,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:13,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:13,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:13,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:13,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:50:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:13,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:13,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:13,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:50:13,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:13,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:50:13,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:13,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:13,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:13,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:13,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:13,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:13,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:50:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:13,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:13,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:13,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:50:13,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:13,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-28 12:50:13,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:13,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:13,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-28 12:50:13,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:13,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:50:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:13,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:13,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:13,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 12:50:13,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:13,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-28 12:50:13,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:13,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 12:50:13,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:14,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-28 12:50:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:14,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:14,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:14,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-28 12:50:14,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:14,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:50:14,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:14,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-28 12:50:14,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:14,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:14,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3921 backedges. 1145 proven. 102 refuted. 0 times theorem prover too weak. 2674 trivial. 0 not checked. [2020-10-28 12:50:14,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101293457] [2020-10-28 12:50:14,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:14,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:50:14,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981774015] [2020-10-28 12:50:14,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:50:14,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:14,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:50:14,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:50:14,893 INFO L87 Difference]: Start difference. First operand 9833 states and 10837 transitions. Second operand 8 states. [2020-10-28 12:50:17,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:17,824 INFO L93 Difference]: Finished difference Result 20944 states and 23282 transitions. [2020-10-28 12:50:17,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:50:17,825 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1116 [2020-10-28 12:50:17,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:17,847 INFO L225 Difference]: With dead ends: 20944 [2020-10-28 12:50:17,847 INFO L226 Difference]: Without dead ends: 11483 [2020-10-28 12:50:17,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-28 12:50:17,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11483 states. [2020-10-28 12:50:18,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11483 to 10565. [2020-10-28 12:50:18,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10565 states. [2020-10-28 12:50:18,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10565 states to 10565 states and 11701 transitions. [2020-10-28 12:50:18,097 INFO L78 Accepts]: Start accepts. Automaton has 10565 states and 11701 transitions. Word has length 1116 [2020-10-28 12:50:18,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:18,098 INFO L481 AbstractCegarLoop]: Abstraction has 10565 states and 11701 transitions. [2020-10-28 12:50:18,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:50:18,098 INFO L276 IsEmpty]: Start isEmpty. Operand 10565 states and 11701 transitions. [2020-10-28 12:50:18,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1235 [2020-10-28 12:50:18,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:18,124 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:18,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 12:50:18,124 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:18,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:18,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1944647448, now seen corresponding path program 1 times [2020-10-28 12:50:18,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:18,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39158362] [2020-10-28 12:50:18,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:18,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:18,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:21,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:22,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:22,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:23,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:23,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1264 [2020-10-28 12:50:23,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:50:23,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-28 12:50:23,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:23,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:23,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 991 [2020-10-28 12:50:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 12:50:23,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:23,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:23,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:23,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:23,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:23,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:23,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:50:23,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:23,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:23,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:23,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:23,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:23,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:23,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:23,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:23,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:23,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:50:23,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:23,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:50:23,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:23,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:23,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:23,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:23,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:23,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:23,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:50:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:23,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:23,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:23,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:50:23,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:23,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:50:23,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:23,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:23,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:23,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:50:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:23,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:23,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:23,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:50:23,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:23,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:50:23,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:23,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:23,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:23,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:23,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:50:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:23,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:23,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:23,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:50:23,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:23,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:50:23,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:23,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:23,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:23,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:23,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:23,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:23,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:50:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:23,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:23,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:23,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:50:23,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:23,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 12:50:23,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:23,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:23,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:23,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:23,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:23,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:24,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:50:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:24,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:24,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:24,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:50:24,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:24,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:50:24,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:24,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:24,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:24,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:24,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:24,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:24,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:50:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:24,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:24,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:24,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:50:24,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:24,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:50:24,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:24,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:24,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:24,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:24,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:24,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:24,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:50:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:24,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:24,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:24,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:50:24,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:24,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 12:50:24,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:24,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:24,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:24,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 12:50:24,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:24,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:50:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:24,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:24,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:24,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 12:50:24,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:24,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-28 12:50:24,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:24,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 12:50:24,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:24,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-28 12:50:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:24,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:24,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:24,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-28 12:50:24,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:24,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:50:24,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:24,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:24,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:24,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-28 12:50:24,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:24,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:25,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4909 backedges. 1307 proven. 102 refuted. 0 times theorem prover too weak. 3500 trivial. 0 not checked. [2020-10-28 12:50:25,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39158362] [2020-10-28 12:50:25,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:25,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:50:25,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669344656] [2020-10-28 12:50:25,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:25,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:25,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:25,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:25,539 INFO L87 Difference]: Start difference. First operand 10565 states and 11701 transitions. Second operand 7 states. [2020-10-28 12:50:27,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:27,874 INFO L93 Difference]: Finished difference Result 20956 states and 23244 transitions. [2020-10-28 12:50:27,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:50:27,875 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1234 [2020-10-28 12:50:27,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:27,898 INFO L225 Difference]: With dead ends: 20956 [2020-10-28 12:50:27,898 INFO L226 Difference]: Without dead ends: 10763 [2020-10-28 12:50:27,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:50:27,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10763 states. [2020-10-28 12:50:28,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 10565. [2020-10-28 12:50:28,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10565 states. [2020-10-28 12:50:28,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10565 states to 10565 states and 11693 transitions. [2020-10-28 12:50:28,131 INFO L78 Accepts]: Start accepts. Automaton has 10565 states and 11693 transitions. Word has length 1234 [2020-10-28 12:50:28,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:28,133 INFO L481 AbstractCegarLoop]: Abstraction has 10565 states and 11693 transitions. [2020-10-28 12:50:28,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:28,133 INFO L276 IsEmpty]: Start isEmpty. Operand 10565 states and 11693 transitions. [2020-10-28 12:50:28,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1327 [2020-10-28 12:50:28,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:28,157 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:28,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 12:50:28,158 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:28,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:28,158 INFO L82 PathProgramCache]: Analyzing trace with hash 956082336, now seen corresponding path program 1 times [2020-10-28 12:50:28,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:28,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856659925] [2020-10-28 12:50:28,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:28,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:29,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:32,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:33,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:33,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1356 [2020-10-28 12:50:33,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:50:33,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-28 12:50:33,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:33,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:33,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:33,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-28 12:50:33,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-28 12:50:33,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:33,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:33,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:33,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:33,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:33,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:33,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 12:50:33,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:33,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:33,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:33,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:33,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:33,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:33,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:33,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:33,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:33,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:50:33,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:33,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:50:33,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:33,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:33,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:33,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:33,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:33,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:33,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:50:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:33,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:33,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:33,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:50:33,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:33,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:50:33,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:33,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:33,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:33,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:33,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:33,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:33,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:50:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:33,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:33,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:33,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:50:33,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:33,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:50:33,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:33,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:33,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:33,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:50:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:33,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:33,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:33,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:50:33,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:33,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:50:33,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:33,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:33,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:33,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:33,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:33,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:33,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:50:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:33,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:33,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:33,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:50:33,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:33,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 12:50:33,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:33,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:33,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:33,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:33,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:50:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:33,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:33,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:33,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:50:33,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:33,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:50:33,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:33,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:33,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:33,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:33,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:33,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:33,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:50:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:34,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:34,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:34,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:50:34,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:34,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 12:50:34,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:34,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:34,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:34,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:34,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-28 12:50:34,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:34,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:50:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:34,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:34,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:34,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:50:34,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:34,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-28 12:50:34,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:34,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:34,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:34,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:34,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 12:50:34,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:34,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2020-10-28 12:50:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:34,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:34,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:34,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:50:34,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:34,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-28 12:50:34,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:34,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:34,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:34,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-28 12:50:34,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:34,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:34,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-28 12:50:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:34,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:34,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:34,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-28 12:50:34,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:34,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 12:50:34,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:34,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:34,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:34,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-28 12:50:34,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:34,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:36,113 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 1278 proven. 239 refuted. 0 times theorem prover too weak. 3601 trivial. 0 not checked. [2020-10-28 12:50:36,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856659925] [2020-10-28 12:50:36,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:36,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:50:36,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813457086] [2020-10-28 12:50:36,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:50:36,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:36,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:50:36,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:50:36,116 INFO L87 Difference]: Start difference. First operand 10565 states and 11693 transitions. Second operand 8 states. [2020-10-28 12:50:39,744 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-28 12:50:40,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:40,246 INFO L93 Difference]: Finished difference Result 21126 states and 23388 transitions. [2020-10-28 12:50:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 12:50:40,247 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1326 [2020-10-28 12:50:40,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:40,267 INFO L225 Difference]: With dead ends: 21126 [2020-10-28 12:50:40,267 INFO L226 Difference]: Without dead ends: 10745 [2020-10-28 12:50:40,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 12:50:40,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10745 states. [2020-10-28 12:50:40,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 10741. [2020-10-28 12:50:40,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10741 states. [2020-10-28 12:50:40,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10741 states to 10741 states and 11746 transitions. [2020-10-28 12:50:40,519 INFO L78 Accepts]: Start accepts. Automaton has 10741 states and 11746 transitions. Word has length 1326 [2020-10-28 12:50:40,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:40,520 INFO L481 AbstractCegarLoop]: Abstraction has 10741 states and 11746 transitions. [2020-10-28 12:50:40,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:50:40,520 INFO L276 IsEmpty]: Start isEmpty. Operand 10741 states and 11746 transitions. [2020-10-28 12:50:40,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1445 [2020-10-28 12:50:40,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:40,549 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:40,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-28 12:50:40,549 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:40,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:40,550 INFO L82 PathProgramCache]: Analyzing trace with hash -454003752, now seen corresponding path program 1 times [2020-10-28 12:50:40,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:40,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991366488] [2020-10-28 12:50:40,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:40,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:42,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1476 [2020-10-28 12:50:43,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:50:43,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2306 [2020-10-28 12:50:43,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1422 [2020-10-28 12:50:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 12:50:43,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:43,378 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:50:43,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:43,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:43,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:43,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:50:43,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:43,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:43,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:43,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:50:43,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:43,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:50:43,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:43,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:43,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:43,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:43,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:50:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:43,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:50:43,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:43,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:50:43,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:43,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:43,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:43,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:43,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:50:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:43,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:50:43,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:43,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:50:43,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:43,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:43,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:43,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:50:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:43,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:50:43,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:43,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:50:43,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:43,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:43,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:50:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:43,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:50:43,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:43,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:50:43,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:43,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:43,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:43,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:43,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:50:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:43,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:50:43,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:43,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:50:43,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:43,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:43,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:43,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:43,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:50:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:43,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:50:43,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:43,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:50:43,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:43,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:43,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:43,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:43,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:50:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:43,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:50:43,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:43,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:50:43,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:43,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:43,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:43,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:43,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:50:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:43,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:50:43,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:43,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:50:43,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:43,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:43,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:50:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:43,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:44,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:44,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:50:44,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:44,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 12:50:44,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:44,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:44,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:44,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:50:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:44,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:44,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:44,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-28 12:50:44,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:44,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:50:44,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:44,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:44,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:44,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:44,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-28 12:50:44,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:45,432 INFO L134 CoverageAnalysis]: Checked inductivity of 6230 backedges. 503 proven. 11 refuted. 0 times theorem prover too weak. 5716 trivial. 0 not checked. [2020-10-28 12:50:45,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991366488] [2020-10-28 12:50:45,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:45,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:50:45,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509246411] [2020-10-28 12:50:45,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:50:45,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:45,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:50:45,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:50:45,434 INFO L87 Difference]: Start difference. First operand 10741 states and 11746 transitions. Second operand 5 states. [2020-10-28 12:50:47,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:47,699 INFO L93 Difference]: Finished difference Result 22032 states and 24192 transitions. [2020-10-28 12:50:47,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:50:47,700 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1444 [2020-10-28 12:50:47,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:47,723 INFO L225 Difference]: With dead ends: 22032 [2020-10-28 12:50:47,723 INFO L226 Difference]: Without dead ends: 11479 [2020-10-28 12:50:47,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:50:47,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11479 states. [2020-10-28 12:50:47,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11479 to 11475. [2020-10-28 12:50:47,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11475 states. [2020-10-28 12:50:47,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11475 states to 11475 states and 12529 transitions. [2020-10-28 12:50:47,937 INFO L78 Accepts]: Start accepts. Automaton has 11475 states and 12529 transitions. Word has length 1444 [2020-10-28 12:50:47,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:47,938 INFO L481 AbstractCegarLoop]: Abstraction has 11475 states and 12529 transitions. [2020-10-28 12:50:47,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:50:47,939 INFO L276 IsEmpty]: Start isEmpty. Operand 11475 states and 12529 transitions. [2020-10-28 12:50:47,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1559 [2020-10-28 12:50:47,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:47,968 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:47,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-28 12:50:47,968 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:47,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:47,969 INFO L82 PathProgramCache]: Analyzing trace with hash 542556456, now seen corresponding path program 1 times [2020-10-28 12:50:47,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:47,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [373125150] [2020-10-28 12:50:47,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:48,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:49,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:49,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:49,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1592 [2020-10-28 12:50:49,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:50:49,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1746 [2020-10-28 12:50:49,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:49,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1538 [2020-10-28 12:50:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 12:50:49,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:50,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:50,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:50,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:50,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:50,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:50,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:50:50,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:50,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:50,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:50,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:50,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:50,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:50,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:50,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:50,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:50,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:50:50,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:50,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:50:50,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:50,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:50,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:50,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:50,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:50,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:50,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:50:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:50,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:50,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:50,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:50:50,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:50,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:50:50,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:50,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:50,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:50,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:50,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:50,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:50,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:50:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:50,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:50,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:50,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:50:50,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:50,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:50:50,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:50,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:50,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:50,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:50,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:50,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:50:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:50,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:50,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:50,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:50:50,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:50,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:50:50,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:50,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:50,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:50,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:50,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:50,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:50,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:50:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:50,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:50,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:50,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:50:50,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:50,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:50:50,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:50,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:50,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:50,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:50,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:50,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:50,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:50:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:50,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:50,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:50,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:50:50,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:50:50,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:50,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:50,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:50:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:50,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:50,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:50,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:50:50,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:50,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:50:50,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:50,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:50,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:50,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:50:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:50,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:50,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:50,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:50:50,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:50,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:50:50,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:50,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:50,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:50,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:50,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:50:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:50,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:50,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:50,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:50:50,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:50,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 12:50:50,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:50,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:50,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:50,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:50,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:50,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:50:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:50,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:50,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:50,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:50:50,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:50,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-28 12:50:50,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:50,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:50,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:50,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:50,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:50,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:51,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:50:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:51,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:51,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:51,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:50:51,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:51,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:50:51,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:51,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:51,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:51,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:51,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:51,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:51,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-28 12:50:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:51,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:51,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:51,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 12:50:51,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:51,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:50:51,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:51,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:51,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:51,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:51,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-28 12:50:51,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:52,707 INFO L134 CoverageAnalysis]: Checked inductivity of 7440 backedges. 549 proven. 12 refuted. 0 times theorem prover too weak. 6879 trivial. 0 not checked. [2020-10-28 12:50:52,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [373125150] [2020-10-28 12:50:52,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:52,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:50:52,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230221545] [2020-10-28 12:50:52,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:50:52,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:52,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:50:52,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:50:52,713 INFO L87 Difference]: Start difference. First operand 11475 states and 12529 transitions. Second operand 5 states. [2020-10-28 12:50:53,340 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 12:50:54,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:54,713 INFO L93 Difference]: Finished difference Result 22940 states and 25051 transitions. [2020-10-28 12:50:54,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:50:54,714 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1558 [2020-10-28 12:50:54,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:54,730 INFO L225 Difference]: With dead ends: 22940 [2020-10-28 12:50:54,730 INFO L226 Difference]: Without dead ends: 11467 [2020-10-28 12:50:54,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:50:54,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11467 states. [2020-10-28 12:50:54,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11467 to 9821. [2020-10-28 12:50:54,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9821 states. [2020-10-28 12:50:54,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9821 states to 9821 states and 10572 transitions. [2020-10-28 12:50:54,925 INFO L78 Accepts]: Start accepts. Automaton has 9821 states and 10572 transitions. Word has length 1558 [2020-10-28 12:50:54,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:54,926 INFO L481 AbstractCegarLoop]: Abstraction has 9821 states and 10572 transitions. [2020-10-28 12:50:54,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:50:54,927 INFO L276 IsEmpty]: Start isEmpty. Operand 9821 states and 10572 transitions. [2020-10-28 12:50:54,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1852 [2020-10-28 12:50:54,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:54,960 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:54,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-28 12:50:54,961 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:54,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:54,961 INFO L82 PathProgramCache]: Analyzing trace with hash 152600508, now seen corresponding path program 1 times [2020-10-28 12:50:54,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:54,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886765879] [2020-10-28 12:50:54,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:55,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:55,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:56,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:59,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:00,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1891 [2020-10-28 12:51:00,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:51:00,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5096 [2020-10-28 12:51:00,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:00,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:00,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:51:00,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-28 12:51:00,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 317 [2020-10-28 12:51:00,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:00,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:00,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:00,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:00,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:00,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:51:00,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:00,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:00,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:00,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:00,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:00,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:00,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:00,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:51:00,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:00,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:00,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:00,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:00,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:00,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:00,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:00,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:00,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:00,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:00,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:51:00,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:00,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:00,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:00,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:00,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:00,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:00,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:51:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:00,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:00,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:51:00,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:00,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:51:00,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:00,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:00,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:00,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:51:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:00,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:00,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:51:00,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:00,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:51:00,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:00,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:00,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:00,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:00,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:00,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:00,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:51:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:00,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:00,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:51:00,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:00,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:51:00,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:00,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:00,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:00,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:51:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:00,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:00,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:51:00,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:00,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:51:00,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:00,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:00,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:00,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:00,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:51:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:00,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:00,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:00,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:00,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:51:00,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:00,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:00,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:00,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:51:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:00,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:01,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:01,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:51:01,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:01,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:51:01,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:01,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:01,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:01,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:01,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:01,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:01,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:51:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:01,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:01,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:01,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:51:01,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:01,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 12:51:01,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:01,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:01,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:01,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:01,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 12:51:01,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:01,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:51:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:01,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:01,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:01,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:51:01,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:01,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-28 12:51:01,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:01,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:01,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:01,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:01,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-28 12:51:01,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:01,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:51:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:01,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:01,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:01,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:51:01,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:01,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-28 12:51:01,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:01,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:01,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:01,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:01,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-28 12:51:01,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-28 12:51:01,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1427 [2020-10-28 12:51:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:01,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:01,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:01,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-28 12:51:01,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:01,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 12:51:01,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:01,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:01,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:01,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 12:51:01,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:01,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:02,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1518 [2020-10-28 12:51:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:02,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:02,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:02,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:51:02,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:02,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-28 12:51:02,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:02,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:02,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:02,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-10-28 12:51:02,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:02,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:02,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1648 [2020-10-28 12:51:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:02,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:02,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:02,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:51:02,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:02,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 12:51:02,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:02,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:51:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:02,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:02,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1734 [2020-10-28 12:51:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:02,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:02,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:02,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:51:02,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:02,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:51:02,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:02,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 12:51:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:02,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:05,605 INFO L134 CoverageAnalysis]: Checked inductivity of 11009 backedges. 2930 proven. 857 refuted. 0 times theorem prover too weak. 7222 trivial. 0 not checked. [2020-10-28 12:51:05,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886765879] [2020-10-28 12:51:05,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:05,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:51:05,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922891273] [2020-10-28 12:51:05,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:51:05,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:05,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:51:05,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:51:05,609 INFO L87 Difference]: Start difference. First operand 9821 states and 10572 transitions. Second operand 8 states. [2020-10-28 12:51:08,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:08,568 INFO L93 Difference]: Finished difference Result 19488 states and 20999 transitions. [2020-10-28 12:51:08,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:51:08,570 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1851 [2020-10-28 12:51:08,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:08,587 INFO L225 Difference]: With dead ends: 19488 [2020-10-28 12:51:08,587 INFO L226 Difference]: Without dead ends: 9857 [2020-10-28 12:51:08,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-28 12:51:08,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9857 states. [2020-10-28 12:51:08,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9857 to 9637. [2020-10-28 12:51:08,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9637 states. [2020-10-28 12:51:08,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9637 states to 9637 states and 10359 transitions. [2020-10-28 12:51:08,769 INFO L78 Accepts]: Start accepts. Automaton has 9637 states and 10359 transitions. Word has length 1851 [2020-10-28 12:51:08,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:08,770 INFO L481 AbstractCegarLoop]: Abstraction has 9637 states and 10359 transitions. [2020-10-28 12:51:08,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:51:08,770 INFO L276 IsEmpty]: Start isEmpty. Operand 9637 states and 10359 transitions. [2020-10-28 12:51:08,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1926 [2020-10-28 12:51:08,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:08,815 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2020-10-28 12:51:08,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-28 12:51:08,815 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:08,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:08,816 INFO L82 PathProgramCache]: Analyzing trace with hash -2123588496, now seen corresponding path program 1 times [2020-10-28 12:51:08,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:08,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158967541] [2020-10-28 12:51:08,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:09,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:09,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:09,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:10,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1965 [2020-10-28 12:51:14,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:51:14,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-10-28 12:51:14,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:51:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-28 12:51:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 317 [2020-10-28 12:51:14,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:14,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:14,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:51:14,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:14,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:14,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 12:51:14,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:14,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:14,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:51:14,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:14,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:51:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:51:14,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 12:51:14,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:14,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:51:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:51:14,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:51:14,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:14,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:51:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:51:14,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 12:51:14,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:15,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:51:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:15,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:15,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:15,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:51:15,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:15,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:51:15,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:15,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:15,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:15,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:51:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:15,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:15,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:15,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:15,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:15,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 12:51:15,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:15,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:15,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:15,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:51:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:15,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:15,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:15,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:51:15,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:15,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:51:15,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:15,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:15,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:15,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:15,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:15,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:51:15,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:51:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:15,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:15,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:15,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:51:15,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:15,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:51:15,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:15,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:15,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:15,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:15,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:15,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:15,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:51:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:15,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:15,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:15,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:51:15,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:15,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:51:15,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:15,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:15,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:15,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:15,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:15,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:15,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:51:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:15,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:15,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:15,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:51:15,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:15,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-28 12:51:15,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:15,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:15,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:15,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:15,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-28 12:51:15,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:15,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-28 12:51:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:15,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:15,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:15,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:15,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:51:15,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:51:15,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-28 12:51:15,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:15,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:15,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:15,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:15,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-28 12:51:15,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:15,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1592 [2020-10-28 12:51:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:16,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:16,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:16,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:51:16,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:16,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-28 12:51:16,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:16,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:16,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:16,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:16,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-28 12:51:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:16,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1722 [2020-10-28 12:51:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:16,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:16,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:16,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:51:16,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:16,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:51:16,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:16,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:16,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:16,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:51:16,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:16,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:16,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1808 [2020-10-28 12:51:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:16,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:16,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:16,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:51:16,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:16,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 12:51:16,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:16,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:16,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:16,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 12:51:16,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:16,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0