/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=SHALLOWEST --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/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 04:26:56,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 04:26:56,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 04:26:56,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 04:26:56,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 04:26:56,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 04:26:56,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 04:26:56,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 04:26:56,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 04:26:56,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 04:26:56,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 04:26:56,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 04:26:56,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 04:26:56,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 04:26:56,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 04:26:56,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 04:26:56,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 04:26:56,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 04:26:56,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 04:26:56,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 04:26:56,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 04:26:56,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 04:26:56,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 04:26:56,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 04:26:56,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 04:26:56,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 04:26:56,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 04:26:56,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 04:26:56,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 04:26:56,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 04:26:56,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 04:26:56,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 04:26:56,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 04:26:56,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 04:26:56,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 04:26:56,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 04:26:56,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 04:26:56,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 04:26:56,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 04:26:56,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 04:26:56,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 04:26:56,399 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 [2020-10-27 04:26:56,431 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 04:26:56,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 04:26:56,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 04:26:56,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 04:26:56,434 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 04:26:56,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 04:26:56,435 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 04:26:56,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 04:26:56,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 04:26:56,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 04:26:56,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 04:26:56,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 04:26:56,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 04:26:56,437 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 04:26:56,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 04:26:56,437 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 04:26:56,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 04:26:56,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 04:26:56,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 04:26:56,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 04:26:56,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 04:26:56,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:26:56,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 04:26:56,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 04:26:56,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 04:26:56,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 04:26:56,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 04:26:56,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 04:26:56,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 04:26:56,441 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 04:26:56,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 04:26:56,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 04:26:56,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 04:26:56,896 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 04:26:56,899 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 04:26:56,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c [2020-10-27 04:26:56,991 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/774f448c7/17356325804b41cc90897da3a13f651f/FLAG5389c5da9 [2020-10-27 04:26:57,689 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 04:26:57,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.1.ufo.BOUNDED-10.pals.c [2020-10-27 04:26:57,702 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/774f448c7/17356325804b41cc90897da3a13f651f/FLAG5389c5da9 [2020-10-27 04:26:58,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/774f448c7/17356325804b41cc90897da3a13f651f [2020-10-27 04:26:58,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 04:26:58,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 04:26:58,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 04:26:58,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 04:26:58,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 04:26:58,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:26:58" (1/1) ... [2020-10-27 04:26:58,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56d5d5a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:58, skipping insertion in model container [2020-10-27 04:26:58,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:26:58" (1/1) ... [2020-10-27 04:26:58,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 04:26:58,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 04:26:58,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:26:58,341 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 04:26:58,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:26:58,485 INFO L208 MainTranslator]: Completed translation [2020-10-27 04:26:58,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:58 WrapperNode [2020-10-27 04:26:58,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 04:26:58,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 04:26:58,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 04:26:58,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 04:26:58,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:58" (1/1) ... [2020-10-27 04:26:58,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:58" (1/1) ... [2020-10-27 04:26:58,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:58" (1/1) ... [2020-10-27 04:26:58,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:58" (1/1) ... [2020-10-27 04:26:58,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:58" (1/1) ... [2020-10-27 04:26:58,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:58" (1/1) ... [2020-10-27 04:26:58,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:58" (1/1) ... [2020-10-27 04:26:58,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 04:26:58,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 04:26:58,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 04:26:58,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 04:26:58,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:26:58,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 04:26:58,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 04:26:58,653 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 04:26:58,654 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 04:26:58,654 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 04:26:58,654 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 04:26:58,655 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 04:26:58,655 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 04:26:58,656 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 04:26:58,656 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 04:26:58,657 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 04:26:58,657 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 04:26:58,657 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 04:26:58,657 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 04:26:58,658 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 04:26:58,659 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 04:26:58,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 04:26:58,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 04:26:58,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 04:26:58,659 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 04:26:58,659 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 04:26:58,659 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 04:26:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 04:26:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 04:26:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 04:26:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 04:26:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 04:26:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 04:26:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 04:26:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 04:26:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 04:26:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 04:26:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 04:26:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 04:26:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 04:26:58,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 04:26:58,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 04:26:59,649 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 04:26:59,650 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 04:26:59,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:26:59 BoogieIcfgContainer [2020-10-27 04:26:59,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 04:26:59,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 04:26:59,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 04:26:59,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 04:26:59,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:26:58" (1/3) ... [2020-10-27 04:26:59,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c24f794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:26:59, skipping insertion in model container [2020-10-27 04:26:59,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:26:58" (2/3) ... [2020-10-27 04:26:59,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c24f794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:26:59, skipping insertion in model container [2020-10-27 04:26:59,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:26:59" (3/3) ... [2020-10-27 04:26:59,662 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c [2020-10-27 04:26:59,676 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 04:26:59,681 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 04:26:59,697 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 04:26:59,728 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 04:26:59,728 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 04:26:59,728 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 04:26:59,728 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 04:26:59,728 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 04:26:59,729 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 04:26:59,729 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 04:26:59,729 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 04:26:59,752 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2020-10-27 04:26:59,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 04:26:59,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:26:59,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:26:59,765 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:26:59,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:26:59,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1652664608, now seen corresponding path program 1 times [2020-10-27 04:26:59,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:26:59,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671356569] [2020-10-27 04:26:59,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:27:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:00,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:00,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:00,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 04:27:00,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:00,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-27 04:27:00,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 04:27:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:00,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 04:27:00,926 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:27:00,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:27:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:00,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:00,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:00,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:27:00,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:00,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 04:27:00,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:00,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:00,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:00,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:00,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:27:01,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:27:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:01,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:01,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:01,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:27:01,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:01,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:27:01,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:01,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:01,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:01,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:01,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:01,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 04:27:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:01,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:01,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:01,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:27:01,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:01,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:27:01,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:01,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:27:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:01,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 04:27:01,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 04:27:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:01,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:01,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:01,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:01,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:01,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 04:27:01,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:01,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:01,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:01,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:01,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:27:01,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 04:27:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:01,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:01,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:01,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:01,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:01,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:27:01,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:01,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:01,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:01,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:27:01,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 04:27:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:01,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:01,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:01,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:01,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:01,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:27:01,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:01,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:01,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:01,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:01,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:01,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 04:27:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:01,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:01,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:01,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:01,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:01,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:27:01,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:01,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:01,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:01,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:01,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:01,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 04:27:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:01,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:01,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:01,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:01,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:01,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:27:01,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:01,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:01,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:01,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:01,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:27:01,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 04:27:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:01,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:01,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:01,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:27:01,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:01,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:27:01,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:01,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:01,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:27:01,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:01,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:01,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:27:01,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671356569] [2020-10-27 04:27:01,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:27:01,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 04:27:01,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001911757] [2020-10-27 04:27:01,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 04:27:01,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:27:01,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 04:27:01,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 04:27:01,407 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 8 states. [2020-10-27 04:27:02,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:27:02,760 INFO L93 Difference]: Finished difference Result 219 states and 317 transitions. [2020-10-27 04:27:02,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 04:27:02,762 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-27 04:27:02,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:27:02,774 INFO L225 Difference]: With dead ends: 219 [2020-10-27 04:27:02,775 INFO L226 Difference]: Without dead ends: 126 [2020-10-27 04:27:02,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:27:02,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-27 04:27:02,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-10-27 04:27:02,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-27 04:27:02,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 187 transitions. [2020-10-27 04:27:02,860 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 187 transitions. Word has length 68 [2020-10-27 04:27:02,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:27:02,861 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 187 transitions. [2020-10-27 04:27:02,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 04:27:02,861 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 187 transitions. [2020-10-27 04:27:02,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 04:27:02,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:27:02,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:27:02,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 04:27:02,868 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:27:02,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:27:02,869 INFO L82 PathProgramCache]: Analyzing trace with hash 2096565282, now seen corresponding path program 1 times [2020-10-27 04:27:02,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:27:02,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411930926] [2020-10-27 04:27:02,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:27:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:02,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:03,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:03,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 04:27:03,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:03,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 798 [2020-10-27 04:27:03,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:03,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:27:03,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 04:27:03,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:27:03,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:04,025 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:27:04,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:27:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:04,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:04,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:04,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:27:04,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:04,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 04:27:04,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:04,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:04,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:04,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:04,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:04,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:27:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:04,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:04,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:04,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:27:04,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:04,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:27:04,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:04,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:27:04,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 04:27:04,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 04:27:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:04,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:04,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:04,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:27:04,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:04,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:27:04,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:04,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:04,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:27:04,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:27:04,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:04,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 04:27:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:04,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:04,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:04,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:04,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:04,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:27:04,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:04,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:04,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 04:27:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:04,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:04,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:04,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:04,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:04,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:27:04,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:04,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:04,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:04,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:04,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:04,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 04:27:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:04,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:04,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:04,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:04,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:04,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:27:04,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:04,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:04,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 04:27:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:04,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:04,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:04,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:04,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:04,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:27:04,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:04,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:04,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:04,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 04:27:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:04,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:04,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:04,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:04,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:04,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:27:04,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:04,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:04,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:27:04,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:04,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:04,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 04:27:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:04,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:04,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:04,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:27:04,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:04,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:27:04,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:27:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:04,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:04,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:27:04,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411930926] [2020-10-27 04:27:04,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:27:04,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 04:27:04,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178070197] [2020-10-27 04:27:04,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 04:27:04,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:27:04,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 04:27:04,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 04:27:04,507 INFO L87 Difference]: Start difference. First operand 126 states and 187 transitions. Second operand 14 states. [2020-10-27 04:27:04,918 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:27:05,203 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 04:27:05,583 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 04:27:05,840 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 04:27:07,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:27:07,834 INFO L93 Difference]: Finished difference Result 220 states and 319 transitions. [2020-10-27 04:27:07,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 04:27:07,835 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-27 04:27:07,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:27:07,840 INFO L225 Difference]: With dead ends: 220 [2020-10-27 04:27:07,840 INFO L226 Difference]: Without dead ends: 137 [2020-10-27 04:27:07,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:27:07,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-27 04:27:07,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 126. [2020-10-27 04:27:07,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-27 04:27:07,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 156 transitions. [2020-10-27 04:27:07,869 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 156 transitions. Word has length 68 [2020-10-27 04:27:07,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:27:07,869 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 156 transitions. [2020-10-27 04:27:07,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 04:27:07,869 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 156 transitions. [2020-10-27 04:27:07,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 04:27:07,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:27:07,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:27:07,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 04:27:07,874 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:27:07,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:27:07,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1450431595, now seen corresponding path program 1 times [2020-10-27 04:27:07,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:27:07,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563441622] [2020-10-27 04:27:07,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:27:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:07,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:08,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:08,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:08,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:10,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:12,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:12,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-27 04:27:12,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:27:12,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 04:27:12,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:12,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:27:12,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 04:27:12,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 04:27:12,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:27:13,230 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:27:13,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:27:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:13,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:13,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:13,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:27:13,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:13,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:27:13,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:13,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:13,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:13,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:13,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:13,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:27:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:13,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:13,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:13,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:27:13,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:13,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 04:27:13,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:13,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:27:13,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:13,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 04:27:13,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:13,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:27:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:13,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:13,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:13,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:27:13,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:13,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:27:13,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:13,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:13,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:13,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:27:13,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:13,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:27:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:13,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:13,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:13,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:13,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:13,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:27:13,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:13,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:13,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:27:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:13,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:13,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:13,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:13,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:13,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:27:13,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:13,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:13,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:13,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:13,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:13,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:27:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:13,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:13,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:13,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:13,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:13,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:27:13,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:13,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:13,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:13,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:13,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:27:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:13,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:13,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:13,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:13,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:13,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:27:13,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:13,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:13,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:13,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:13,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:13,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:27:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:13,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:13,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:13,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:13,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:13,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:27:13,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:13,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:13,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:13,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:13,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:13,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:27:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:13,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:13,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:13,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:27:13,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:13,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:27:13,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:13,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:13,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:27:13,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:27:13,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:14,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:27:14,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563441622] [2020-10-27 04:27:14,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:27:14,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 04:27:14,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626124487] [2020-10-27 04:27:14,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 04:27:14,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:27:14,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 04:27:14,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2020-10-27 04:27:14,044 INFO L87 Difference]: Start difference. First operand 126 states and 156 transitions. Second operand 19 states. [2020-10-27 04:27:14,669 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 156 [2020-10-27 04:27:14,954 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 04:27:15,250 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:27:15,507 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 04:27:15,783 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 04:27:16,133 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2020-10-27 04:27:16,469 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-27 04:27:17,108 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2020-10-27 04:27:17,892 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-27 04:27:19,001 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-27 04:27:20,609 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-27 04:27:20,873 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 04:27:21,120 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 04:27:21,356 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 04:27:21,586 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 04:27:29,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:27:29,622 INFO L93 Difference]: Finished difference Result 1010 states and 1399 transitions. [2020-10-27 04:27:29,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-10-27 04:27:29,623 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 98 [2020-10-27 04:27:29,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:27:29,638 INFO L225 Difference]: With dead ends: 1010 [2020-10-27 04:27:29,638 INFO L226 Difference]: Without dead ends: 933 [2020-10-27 04:27:29,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4079 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=2092, Invalid=9464, Unknown=0, NotChecked=0, Total=11556 [2020-10-27 04:27:29,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2020-10-27 04:27:29,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 903. [2020-10-27 04:27:29,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 903 states. [2020-10-27 04:27:29,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1258 transitions. [2020-10-27 04:27:29,812 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1258 transitions. Word has length 98 [2020-10-27 04:27:29,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:27:29,813 INFO L481 AbstractCegarLoop]: Abstraction has 903 states and 1258 transitions. [2020-10-27 04:27:29,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 04:27:29,813 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1258 transitions. [2020-10-27 04:27:29,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 04:27:29,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:27:29,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:27:29,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 04:27:29,821 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:27:29,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:27:29,821 INFO L82 PathProgramCache]: Analyzing trace with hash 539130651, now seen corresponding path program 1 times [2020-10-27 04:27:29,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:27:29,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1340511443] [2020-10-27 04:27:29,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:27:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:29,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:29,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:30,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:30,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:30,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:30,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:34,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:34,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:27:34,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:27:34,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-27 04:27:34,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:34,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:27:34,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 04:27:34,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-27 04:27:34,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:35,183 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:27:35,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:27:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:35,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:35,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:35,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:27:35,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:35,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:27:35,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:35,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:35,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:35,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:35,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:35,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:27:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:35,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:35,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:35,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:27:35,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:35,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:27:35,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 04:27:35,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:35,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:27:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:35,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:35,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:35,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:27:35,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:35,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:27:35,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:35,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:35,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:35,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:27:35,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:35,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:27:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:35,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:35,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:35,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:35,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:35,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:27:35,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:27:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:35,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:35,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:27:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:35,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:35,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:35,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:35,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:35,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:27:35,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:35,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:35,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:35,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:27:35,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:35,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:27:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:35,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:35,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:35,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:35,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:35,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:27:35,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:35,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:35,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:35,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:27:35,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:35,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:27:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:35,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:35,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:35,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:35,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:35,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:27:35,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:35,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:35,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:35,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:27:35,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:35,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:27:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:35,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:35,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:35,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:35,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:35,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:27:35,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:27:35,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:35,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:27:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:35,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:35,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:35,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:35,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:27:35,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:27:35,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:27:35,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:35,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 04:27:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:27:35,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:35,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:27:35,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1340511443] [2020-10-27 04:27:35,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:27:35,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 04:27:35,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968786831] [2020-10-27 04:27:35,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 04:27:35,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:27:35,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 04:27:35,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:27:35,584 INFO L87 Difference]: Start difference. First operand 903 states and 1258 transitions. Second operand 13 states. [2020-10-27 04:27:35,877 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 04:27:36,600 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 04:27:39,523 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 04:27:40,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:27:40,761 INFO L93 Difference]: Finished difference Result 4077 states and 5757 transitions. [2020-10-27 04:27:40,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-27 04:27:40,761 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 100 [2020-10-27 04:27:40,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:27:40,796 INFO L225 Difference]: With dead ends: 4077 [2020-10-27 04:27:40,796 INFO L226 Difference]: Without dead ends: 3223 [2020-10-27 04:27:40,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=338, Invalid=1068, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 04:27:40,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3223 states. [2020-10-27 04:27:41,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3223 to 3214. [2020-10-27 04:27:41,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3214 states. [2020-10-27 04:27:41,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 4484 transitions. [2020-10-27 04:27:41,178 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 4484 transitions. Word has length 100 [2020-10-27 04:27:41,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:27:41,178 INFO L481 AbstractCegarLoop]: Abstraction has 3214 states and 4484 transitions. [2020-10-27 04:27:41,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 04:27:41,179 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 4484 transitions. [2020-10-27 04:27:41,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 04:27:41,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:27:41,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:27:41,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 04:27:41,185 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:27:41,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:27:41,186 INFO L82 PathProgramCache]: Analyzing trace with hash -724939821, now seen corresponding path program 1 times [2020-10-27 04:27:41,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:27:41,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550003451] [2020-10-27 04:27:41,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:27:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:41,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:41,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:41,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:41,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:45,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:27:46,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:27:46,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 04:27:46,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:27:46,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 04:27:46,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 04:27:46,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:46,511 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:27:46,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:27:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:46,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:27:46,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:46,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:27:46,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:27:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:27:46,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:46,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:27:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:46,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:27:46,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:46,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 04:27:46,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:27:46,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:46,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 04:27:46,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:46,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:27:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:46,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:27:46,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:46,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:27:46,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:46,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:27:46,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:27:46,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:46,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:27:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:46,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:46,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:46,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:27:46,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:46,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:46,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:46,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:46,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:27:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:46,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:46,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:46,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:27:46,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:46,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:46,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:46,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:46,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:27:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:46,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:46,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:46,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 04:27:46,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:46,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:46,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:46,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:46,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:27:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:46,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:46,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:46,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:46,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:46,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:27:46,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:46,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:46,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:46,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:46,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:47,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:27:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:47,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:47,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:47,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:27:47,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:47,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:27:47,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:47,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:27:47,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:27:47,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:27:47,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:47,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:27:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:27:47,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:27:47,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:27:47,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:27:47,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:27:47,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:27:47,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:27:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:27:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:27:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:27:47,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:27:47,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:27:47,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550003451] [2020-10-27 04:27:47,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:27:47,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 04:27:47,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714770022] [2020-10-27 04:27:47,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 04:27:47,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:27:47,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 04:27:47,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2020-10-27 04:27:47,186 INFO L87 Difference]: Start difference. First operand 3214 states and 4484 transitions. Second operand 19 states. [2020-10-27 04:27:47,514 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 04:27:47,761 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 04:27:48,007 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 04:27:48,259 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 04:27:48,531 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 04:27:49,354 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 04:27:50,187 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-27 04:27:51,368 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 04:27:53,090 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-27 04:27:55,144 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-27 04:27:59,546 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 04:28:00,638 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 04:28:03,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:28:03,115 INFO L93 Difference]: Finished difference Result 8555 states and 12665 transitions. [2020-10-27 04:28:03,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2020-10-27 04:28:03,116 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 100 [2020-10-27 04:28:03,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:28:03,160 INFO L225 Difference]: With dead ends: 8555 [2020-10-27 04:28:03,160 INFO L226 Difference]: Without dead ends: 5390 [2020-10-27 04:28:03,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4466 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=2364, Invalid=9626, Unknown=0, NotChecked=0, Total=11990 [2020-10-27 04:28:03,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5390 states. [2020-10-27 04:28:03,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5390 to 4322. [2020-10-27 04:28:03,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4322 states. [2020-10-27 04:28:03,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4322 states to 4322 states and 6078 transitions. [2020-10-27 04:28:03,764 INFO L78 Accepts]: Start accepts. Automaton has 4322 states and 6078 transitions. Word has length 100 [2020-10-27 04:28:03,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:28:03,765 INFO L481 AbstractCegarLoop]: Abstraction has 4322 states and 6078 transitions. [2020-10-27 04:28:03,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 04:28:03,765 INFO L276 IsEmpty]: Start isEmpty. Operand 4322 states and 6078 transitions. [2020-10-27 04:28:03,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 04:28:03,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:28:03,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:28:03,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 04:28:03,770 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:28:03,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:28:03,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1548703519, now seen corresponding path program 1 times [2020-10-27 04:28:03,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:28:03,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024531372] [2020-10-27 04:28:03,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:28:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:03,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:03,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:03,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:03,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:04,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:04,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:08,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:08,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:28:08,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:28:08,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 04:28:08,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:28:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:28:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-27 04:28:08,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:09,101 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:28:09,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:28:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:09,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:09,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:09,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:28:09,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:09,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:28:09,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:09,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:09,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:09,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:28:09,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:09,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:28:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:09,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:09,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:09,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:28:09,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:09,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:28:09,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:09,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:28:09,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:09,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 04:28:09,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:09,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:28:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:09,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:09,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:09,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:28:09,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:09,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:28:09,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:09,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:28:09,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:09,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:28:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:09,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:09,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:09,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:09,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:09,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:28:09,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:09,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:09,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:09,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:09,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:28:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:09,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:09,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:09,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:09,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:09,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:28:09,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:09,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:09,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:28:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:09,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:09,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:09,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:09,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:09,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:28:09,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:09,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:09,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:28:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:09,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:09,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:09,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:09,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:09,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:28:09,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:09,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:09,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:09,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:09,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:09,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:28:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:09,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:09,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:09,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:28:09,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:09,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:28:09,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:28:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:28:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:28:09,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:09,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 04:28:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:09,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:09,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:09,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:28:09,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:09,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:28:09,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:09,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:09,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:28:09,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:09,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:09,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:28:09,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024531372] [2020-10-27 04:28:09,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:28:09,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 04:28:09,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598432810] [2020-10-27 04:28:09,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:28:09,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:28:09,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:28:09,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:28:09,585 INFO L87 Difference]: Start difference. First operand 4322 states and 6078 transitions. Second operand 15 states. [2020-10-27 04:28:10,164 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-27 04:28:10,436 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:28:11,270 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-27 04:28:11,434 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-27 04:28:11,711 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:11,976 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:12,260 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:12,904 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 158 [2020-10-27 04:28:13,137 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2020-10-27 04:28:13,544 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-27 04:28:13,782 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:14,029 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:14,284 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:14,564 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-27 04:28:14,790 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2020-10-27 04:28:14,965 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-27 04:28:15,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:28:15,297 INFO L93 Difference]: Finished difference Result 9477 states and 13177 transitions. [2020-10-27 04:28:15,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 04:28:15,297 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-27 04:28:15,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:28:15,326 INFO L225 Difference]: With dead ends: 9477 [2020-10-27 04:28:15,326 INFO L226 Difference]: Without dead ends: 5204 [2020-10-27 04:28:15,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 04:28:15,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5204 states. [2020-10-27 04:28:15,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5204 to 4719. [2020-10-27 04:28:15,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4719 states. [2020-10-27 04:28:15,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4719 states to 4719 states and 6621 transitions. [2020-10-27 04:28:15,835 INFO L78 Accepts]: Start accepts. Automaton has 4719 states and 6621 transitions. Word has length 100 [2020-10-27 04:28:15,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:28:15,835 INFO L481 AbstractCegarLoop]: Abstraction has 4719 states and 6621 transitions. [2020-10-27 04:28:15,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:28:15,836 INFO L276 IsEmpty]: Start isEmpty. Operand 4719 states and 6621 transitions. [2020-10-27 04:28:15,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 04:28:15,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:28:15,839 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:28:15,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 04:28:15,839 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:28:15,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:28:15,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1786715157, now seen corresponding path program 1 times [2020-10-27 04:28:15,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:28:15,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270901788] [2020-10-27 04:28:15,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:28:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:15,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:15,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:15,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:16,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:16,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:19,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:20,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:20,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:20,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:28:20,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:28:20,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 04:28:20,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:20,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:28:20,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:28:20,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 04:28:20,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:21,256 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:28:21,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:28:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:21,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:21,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:21,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:28:21,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:21,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 04:28:21,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:21,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:21,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:21,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:28:21,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:21,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:28:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:21,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:21,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:21,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:28:21,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:21,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 04:28:21,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:28:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 04:28:21,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:21,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:28:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:21,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:21,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:21,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:28:21,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:21,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:28:21,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:21,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:28:21,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:21,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:28:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:21,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:21,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:21,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:21,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:21,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:28:21,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:21,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:21,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:21,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:21,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:21,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:28:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:21,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:21,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:21,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:21,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:21,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:28:21,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:21,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:21,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:28:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:21,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:21,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:21,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:21,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:21,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:28:21,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:21,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:21,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:21,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:21,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:21,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:28:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:21,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:21,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:21,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:28:21,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:21,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:28:21,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:21,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:28:21,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:28:21,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:28:21,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:21,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:28:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:21,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:21,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:21,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:21,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:21,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:28:21,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:21,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:21,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:28:21,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:21,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:21,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 04:28:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:21,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:21,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:21,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:28:21,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:21,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:28:21,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:28:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:21,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:21,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:28:21,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270901788] [2020-10-27 04:28:21,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:28:21,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 04:28:21,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169327894] [2020-10-27 04:28:21,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:28:21,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:28:21,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:28:21,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:28:21,899 INFO L87 Difference]: Start difference. First operand 4719 states and 6621 transitions. Second operand 15 states. [2020-10-27 04:28:22,435 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-27 04:28:22,706 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:28:23,553 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-27 04:28:23,735 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-27 04:28:24,011 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:24,297 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:24,900 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-27 04:28:25,129 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-27 04:28:25,350 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:25,776 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-27 04:28:26,008 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:26,244 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:26,477 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-27 04:28:26,687 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2020-10-27 04:28:26,841 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-27 04:28:27,093 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:27,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:28:27,397 INFO L93 Difference]: Finished difference Result 10363 states and 14374 transitions. [2020-10-27 04:28:27,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 04:28:27,398 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-27 04:28:27,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:28:27,433 INFO L225 Difference]: With dead ends: 10363 [2020-10-27 04:28:27,433 INFO L226 Difference]: Without dead ends: 5893 [2020-10-27 04:28:27,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 04:28:27,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2020-10-27 04:28:27,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 4936. [2020-10-27 04:28:27,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4936 states. [2020-10-27 04:28:27,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4936 states to 4936 states and 6912 transitions. [2020-10-27 04:28:28,000 INFO L78 Accepts]: Start accepts. Automaton has 4936 states and 6912 transitions. Word has length 100 [2020-10-27 04:28:28,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:28:28,001 INFO L481 AbstractCegarLoop]: Abstraction has 4936 states and 6912 transitions. [2020-10-27 04:28:28,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:28:28,001 INFO L276 IsEmpty]: Start isEmpty. Operand 4936 states and 6912 transitions. [2020-10-27 04:28:28,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 04:28:28,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:28:28,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:28:28,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 04:28:28,004 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:28:28,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:28:28,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1048680919, now seen corresponding path program 1 times [2020-10-27 04:28:28,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:28:28,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276451891] [2020-10-27 04:28:28,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:28:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:28,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:28,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:28,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:28,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:28,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:28,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:33,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:33,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:28:33,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:28:33,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 04:28:33,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:28:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:28:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-27 04:28:33,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:33,390 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:28:33,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:28:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:33,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:33,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:33,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:28:33,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:33,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 04:28:33,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:33,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:33,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:33,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:28:33,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:33,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:28:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:33,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:33,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:33,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:28:33,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:33,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:28:33,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:33,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:28:33,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:33,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 04:28:33,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:33,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:28:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:33,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:33,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:33,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:28:33,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:33,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:28:33,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:33,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:33,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:33,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:28:33,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:33,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:28:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:33,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:33,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:33,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:33,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:33,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:28:33,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:33,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:33,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:33,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:33,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:33,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:28:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:33,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:33,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:33,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:33,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:33,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:28:33,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:33,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:33,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:33,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:33,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:33,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:28:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:33,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:33,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:33,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:28:33,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:33,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:28:33,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:33,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:28:33,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:28:33,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:28:33,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:33,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:28:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:33,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:33,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:33,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:33,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:33,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:28:33,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:33,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:33,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:28:33,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:33,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:33,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:28:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:33,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:33,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:33,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:33,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:33,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:28:33,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:33,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:28:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:33,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:33,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 04:28:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:33,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:33,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:33,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:28:33,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:33,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:28:33,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:33,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:33,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:28:33,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:33,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:33,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:28:33,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276451891] [2020-10-27 04:28:33,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:28:33,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 04:28:33,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709012208] [2020-10-27 04:28:33,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:28:33,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:28:33,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:28:33,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:28:33,802 INFO L87 Difference]: Start difference. First operand 4936 states and 6912 transitions. Second operand 15 states. [2020-10-27 04:28:34,348 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-27 04:28:34,628 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:28:35,503 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-27 04:28:35,709 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-27 04:28:36,003 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:36,621 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-27 04:28:36,842 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-27 04:28:37,075 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:37,319 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:37,713 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-27 04:28:37,948 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:38,198 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-27 04:28:38,378 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-27 04:28:38,559 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2020-10-27 04:28:38,849 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:39,149 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:28:39,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:28:39,632 INFO L93 Difference]: Finished difference Result 11858 states and 16500 transitions. [2020-10-27 04:28:39,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 04:28:39,633 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-27 04:28:39,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:28:39,673 INFO L225 Difference]: With dead ends: 11858 [2020-10-27 04:28:39,673 INFO L226 Difference]: Without dead ends: 7066 [2020-10-27 04:28:39,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 04:28:39,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7066 states. [2020-10-27 04:28:40,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7066 to 5053. [2020-10-27 04:28:40,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5053 states. [2020-10-27 04:28:40,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5053 states to 5053 states and 7073 transitions. [2020-10-27 04:28:40,169 INFO L78 Accepts]: Start accepts. Automaton has 5053 states and 7073 transitions. Word has length 100 [2020-10-27 04:28:40,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:28:40,170 INFO L481 AbstractCegarLoop]: Abstraction has 5053 states and 7073 transitions. [2020-10-27 04:28:40,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:28:40,170 INFO L276 IsEmpty]: Start isEmpty. Operand 5053 states and 7073 transitions. [2020-10-27 04:28:40,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 04:28:40,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:28:40,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:28:40,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 04:28:40,172 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:28:40,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:28:40,173 INFO L82 PathProgramCache]: Analyzing trace with hash 496568853, now seen corresponding path program 1 times [2020-10-27 04:28:40,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:28:40,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1861580838] [2020-10-27 04:28:40,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:28:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:40,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:40,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:40,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:40,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:41,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:41,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:41,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:45,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:45,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:28:45,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:28:45,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 04:28:45,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:45,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:28:45,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:28:45,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 04:28:45,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:45,463 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:28:45,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:28:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:45,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:45,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:45,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:28:45,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:45,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 04:28:45,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:28:45,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:45,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:28:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:45,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:45,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:45,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:28:45,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:45,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:28:45,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:45,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:28:45,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:45,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 04:28:45,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:45,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:28:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:45,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:45,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:45,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:28:45,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:45,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:28:45,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:28:45,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:45,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:28:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:45,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:45,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:45,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:45,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:45,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:28:45,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:45,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:45,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:45,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:28:45,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:45,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:28:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:45,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:45,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:45,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:28:45,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:45,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:28:45,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:28:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:28:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:28:45,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:45,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 04:28:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:45,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:45,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:45,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:45,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:45,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:28:45,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:45,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:45,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:28:45,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:45,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:45,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:28:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:45,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:45,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:45,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:45,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:45,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:28:45,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:45,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:45,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:28:45,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:45,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:45,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:28:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:45,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:45,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:45,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:45,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:45,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:28:45,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:45,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:45,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:28:45,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:45,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:45,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 04:28:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:45,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:45,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:45,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:28:45,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:45,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:28:45,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:45,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:45,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:28:45,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:45,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:45,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:28:45,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1861580838] [2020-10-27 04:28:45,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:28:45,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 04:28:45,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400715037] [2020-10-27 04:28:45,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:28:45,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:28:45,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:28:45,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:28:45,832 INFO L87 Difference]: Start difference. First operand 5053 states and 7073 transitions. Second operand 15 states. [2020-10-27 04:28:46,128 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 04:28:46,402 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:28:46,994 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 04:28:47,458 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 04:28:49,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:28:49,964 INFO L93 Difference]: Finished difference Result 12869 states and 18035 transitions. [2020-10-27 04:28:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 04:28:49,964 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-27 04:28:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:28:50,011 INFO L225 Difference]: With dead ends: 12869 [2020-10-27 04:28:50,011 INFO L226 Difference]: Without dead ends: 7900 [2020-10-27 04:28:50,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 04:28:50,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7900 states. [2020-10-27 04:28:50,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7900 to 5083. [2020-10-27 04:28:50,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5083 states. [2020-10-27 04:28:50,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5083 states to 5083 states and 7124 transitions. [2020-10-27 04:28:50,660 INFO L78 Accepts]: Start accepts. Automaton has 5083 states and 7124 transitions. Word has length 100 [2020-10-27 04:28:50,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:28:50,660 INFO L481 AbstractCegarLoop]: Abstraction has 5083 states and 7124 transitions. [2020-10-27 04:28:50,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:28:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5083 states and 7124 transitions. [2020-10-27 04:28:50,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 04:28:50,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:28:50,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:28:50,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 04:28:50,662 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:28:50,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:28:50,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1608707873, now seen corresponding path program 1 times [2020-10-27 04:28:50,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:28:50,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605981871] [2020-10-27 04:28:50,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:28:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:50,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:50,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:50,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:50,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:51,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:53,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:53,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:55,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:55,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:28:55,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:28:55,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 04:28:55,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:55,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:28:55,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:28:55,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:28:55,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:56,009 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:28:56,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:28:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:56,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:56,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:56,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:28:56,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:56,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 04:28:56,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:56,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:56,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:56,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:28:56,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:56,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:28:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:56,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:56,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:56,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:28:56,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:56,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:28:56,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:56,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:28:56,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:56,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 04:28:56,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:56,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:28:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:56,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:56,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:56,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:28:56,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:56,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:28:56,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:56,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:28:56,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:28:56,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:28:56,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:56,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:28:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:56,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:56,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:56,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:28:56,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:56,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:28:56,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:56,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:28:56,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:28:56,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:28:56,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:56,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 04:28:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:56,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:56,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:56,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:56,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:56,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:28:56,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:56,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:56,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:28:56,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:56,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:56,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 04:28:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:56,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:56,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:56,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:56,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:56,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:28:56,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:28:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:56,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:56,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:28:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:56,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:56,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:56,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:56,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:56,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:28:56,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:56,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:56,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:28:56,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:56,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:56,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:28:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:56,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:56,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:56,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:28:56,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:56,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:28:56,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:56,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:56,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:28:56,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:56,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:56,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 04:28:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:28:56,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:28:56,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:28:56,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:28:56,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:28:56,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:28:56,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:28:56,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:28:56,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:28:56,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:28:56,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:28:56,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:28:56,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605981871] [2020-10-27 04:28:56,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:28:56,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 04:28:56,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500638219] [2020-10-27 04:28:56,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:28:56,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:28:56,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:28:56,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:28:56,404 INFO L87 Difference]: Start difference. First operand 5083 states and 7124 transitions. Second operand 15 states. [2020-10-27 04:28:56,958 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-27 04:28:57,228 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:28:58,072 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-27 04:28:58,573 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-27 04:28:58,756 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-27 04:28:59,015 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:59,276 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:59,532 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:28:59,789 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-27 04:29:00,227 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-27 04:29:00,419 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:29:00,593 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-27 04:29:00,855 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:29:01,126 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:29:01,379 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:29:01,647 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-27 04:29:02,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:29:02,110 INFO L93 Difference]: Finished difference Result 10780 states and 15226 transitions. [2020-10-27 04:29:02,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 04:29:02,111 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-27 04:29:02,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:29:02,141 INFO L225 Difference]: With dead ends: 10780 [2020-10-27 04:29:02,142 INFO L226 Difference]: Without dead ends: 6987 [2020-10-27 04:29:02,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 04:29:02,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6987 states. [2020-10-27 04:29:02,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6987 to 4802. [2020-10-27 04:29:02,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4802 states. [2020-10-27 04:29:02,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4802 states to 4802 states and 6747 transitions. [2020-10-27 04:29:02,657 INFO L78 Accepts]: Start accepts. Automaton has 4802 states and 6747 transitions. Word has length 100 [2020-10-27 04:29:02,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:29:02,657 INFO L481 AbstractCegarLoop]: Abstraction has 4802 states and 6747 transitions. [2020-10-27 04:29:02,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:29:02,658 INFO L276 IsEmpty]: Start isEmpty. Operand 4802 states and 6747 transitions. [2020-10-27 04:29:02,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 04:29:02,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:29:02,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:29:02,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 04:29:02,659 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:29:02,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:29:02,660 INFO L82 PathProgramCache]: Analyzing trace with hash -56945629, now seen corresponding path program 1 times [2020-10-27 04:29:02,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:29:02,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353589448] [2020-10-27 04:29:02,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:29:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:02,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:02,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:02,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:02,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:03,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:07,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:07,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 04:29:07,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:29:07,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 04:29:07,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:07,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:29:07,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-27 04:29:07,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 04:29:07,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:07,936 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:29:07,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:29:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:07,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:07,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:07,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:29:07,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:07,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:29:07,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:07,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:07,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:29:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:07,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:07,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:07,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:29:07,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:07,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:29:07,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:07,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:07,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:07,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:29:07,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:07,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:29:07,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:07,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:07,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:07,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:29:07,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:07,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:07,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:07,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:07,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:07,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:29:07,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:08,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:29:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:08,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:08,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:08,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:08,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:08,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:29:08,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:08,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:29:08,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:29:08,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:29:08,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:08,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:29:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:08,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:08,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:08,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:08,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:08,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:29:08,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:08,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:08,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:29:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:08,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:08,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:08,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:08,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:08,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:08,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:08,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:08,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:08,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:29:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:08,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:08,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:08,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:08,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:08,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:29:08,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:08,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:08,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:08,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:08,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:08,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:29:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:08,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:08,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:08,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:08,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:08,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:08,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:08,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:08,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:08,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:08,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:08,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:29:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:08,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:08,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:08,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:29:08,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:08,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:29:08,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:08,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:08,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 04:29:08,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:08,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:08,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:29:08,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353589448] [2020-10-27 04:29:08,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:29:08,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 04:29:08,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415075640] [2020-10-27 04:29:08,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 04:29:08,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:29:08,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 04:29:08,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:29:08,217 INFO L87 Difference]: Start difference. First operand 4802 states and 6747 transitions. Second operand 11 states. [2020-10-27 04:29:08,502 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:29:11,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:29:11,278 INFO L93 Difference]: Finished difference Result 9974 states and 14102 transitions. [2020-10-27 04:29:11,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 04:29:11,278 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-27 04:29:11,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:29:11,304 INFO L225 Difference]: With dead ends: 9974 [2020-10-27 04:29:11,304 INFO L226 Difference]: Without dead ends: 6817 [2020-10-27 04:29:11,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:29:11,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6817 states. [2020-10-27 04:29:12,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6817 to 6556. [2020-10-27 04:29:12,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6556 states. [2020-10-27 04:29:12,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6556 states to 6556 states and 9161 transitions. [2020-10-27 04:29:12,096 INFO L78 Accepts]: Start accepts. Automaton has 6556 states and 9161 transitions. Word has length 101 [2020-10-27 04:29:12,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:29:12,096 INFO L481 AbstractCegarLoop]: Abstraction has 6556 states and 9161 transitions. [2020-10-27 04:29:12,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 04:29:12,096 INFO L276 IsEmpty]: Start isEmpty. Operand 6556 states and 9161 transitions. [2020-10-27 04:29:12,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 04:29:12,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:29:12,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:29:12,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 04:29:12,098 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:29:12,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:29:12,098 INFO L82 PathProgramCache]: Analyzing trace with hash 482747735, now seen corresponding path program 1 times [2020-10-27 04:29:12,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:29:12,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727461085] [2020-10-27 04:29:12,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:29:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:12,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:12,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:12,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:12,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:12,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:17,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:17,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 04:29:17,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:29:17,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 04:29:17,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:17,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:29:17,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:29:17,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 04:29:17,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:17,380 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:29:17,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:29:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:17,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:17,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:17,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:29:17,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:17,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:29:17,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:17,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:17,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:17,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 04:29:17,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:17,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:29:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:17,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:17,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:17,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:29:17,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:17,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 04:29:17,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:17,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:29:17,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:17,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 04:29:17,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:17,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:29:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:17,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:17,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:17,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:29:17,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:17,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:29:17,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:17,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:17,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:17,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:29:17,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:17,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:29:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:17,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:17,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:17,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:17,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:17,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:29:17,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:17,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:29:17,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:29:17,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:29:17,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:17,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:29:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:17,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:17,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:17,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:17,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:17,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:17,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:17,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:17,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:17,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:17,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:17,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:29:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:17,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:17,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:17,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:17,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:17,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:17,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:17,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:17,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:17,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:17,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:17,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:29:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:17,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:17,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:17,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:17,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:17,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:17,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:17,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:17,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:17,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:17,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:17,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:29:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:17,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:17,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:17,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:17,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:17,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:17,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:17,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:17,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:17,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:17,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:17,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:29:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:17,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:17,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:17,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:29:17,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:17,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:29:17,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:17,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:17,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 04:29:17,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:17,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:17,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:29:17,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727461085] [2020-10-27 04:29:17,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:29:17,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 04:29:17,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776997720] [2020-10-27 04:29:17,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 04:29:17,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:29:17,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 04:29:17,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:29:17,721 INFO L87 Difference]: Start difference. First operand 6556 states and 9161 transitions. Second operand 15 states. [2020-10-27 04:29:18,253 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 154 [2020-10-27 04:29:18,495 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:29:18,745 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 04:29:19,568 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 155 [2020-10-27 04:29:19,743 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-27 04:29:19,958 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-27 04:29:20,219 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-27 04:29:20,466 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-27 04:29:20,717 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-27 04:29:21,105 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-27 04:29:21,296 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-27 04:29:21,630 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-27 04:29:22,069 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-27 04:29:22,501 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-27 04:29:22,942 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-27 04:29:23,741 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 04:29:23,990 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-27 04:29:24,512 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 04:29:27,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:29:27,669 INFO L93 Difference]: Finished difference Result 23396 states and 33193 transitions. [2020-10-27 04:29:27,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-27 04:29:27,670 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 101 [2020-10-27 04:29:27,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:29:27,725 INFO L225 Difference]: With dead ends: 23396 [2020-10-27 04:29:27,725 INFO L226 Difference]: Without dead ends: 16894 [2020-10-27 04:29:27,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=692, Invalid=2278, Unknown=0, NotChecked=0, Total=2970 [2020-10-27 04:29:27,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16894 states. [2020-10-27 04:29:29,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16894 to 16117. [2020-10-27 04:29:29,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16117 states. [2020-10-27 04:29:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16117 states to 16117 states and 22708 transitions. [2020-10-27 04:29:29,274 INFO L78 Accepts]: Start accepts. Automaton has 16117 states and 22708 transitions. Word has length 101 [2020-10-27 04:29:29,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:29:29,275 INFO L481 AbstractCegarLoop]: Abstraction has 16117 states and 22708 transitions. [2020-10-27 04:29:29,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 04:29:29,275 INFO L276 IsEmpty]: Start isEmpty. Operand 16117 states and 22708 transitions. [2020-10-27 04:29:29,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 04:29:29,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:29:29,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:29:29,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 04:29:29,277 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:29:29,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:29:29,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1456414311, now seen corresponding path program 1 times [2020-10-27 04:29:29,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:29:29,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076354930] [2020-10-27 04:29:29,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:29:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:29,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:29,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:29,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:29,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:34,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:34,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 04:29:34,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:29:34,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 04:29:34,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:34,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:29:34,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-27 04:29:34,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-27 04:29:34,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:34,555 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:29:34,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:29:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:34,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:34,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:34,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:29:34,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:34,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:29:34,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:34,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:34,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:34,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:34,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:34,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:29:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:34,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:34,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:34,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:29:34,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:34,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:29:34,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:34,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:34,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:34,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:29:34,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:34,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:29:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:34,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:34,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:34,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:29:34,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:34,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:34,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:34,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:34,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:34,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:29:34,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:34,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:29:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:34,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:34,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:34,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:34,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:34,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:29:34,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:34,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:34,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:34,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:34,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:34,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:29:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:34,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:34,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:34,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:34,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:34,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:29:34,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:34,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:29:34,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:29:34,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:29:34,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:34,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:29:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:34,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:34,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:34,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:34,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:34,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:29:34,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:34,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:34,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:34,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:34,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:34,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:29:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:34,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:34,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:34,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:34,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:34,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:29:34,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:34,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:34,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:34,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:34,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:34,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:29:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:34,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:34,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:34,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:34,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:34,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:29:34,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:34,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:34,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:34,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:34,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:34,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:29:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:34,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:34,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:34,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:29:34,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:34,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:34,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:34,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:34,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 04:29:34,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:34,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:34,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:29:34,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2076354930] [2020-10-27 04:29:34,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:29:34,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 04:29:34,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880103544] [2020-10-27 04:29:34,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 04:29:34,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:29:34,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 04:29:34,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:29:34,834 INFO L87 Difference]: Start difference. First operand 16117 states and 22708 transitions. Second operand 11 states. [2020-10-27 04:29:35,129 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:29:39,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:29:39,831 INFO L93 Difference]: Finished difference Result 46748 states and 66141 transitions. [2020-10-27 04:29:39,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 04:29:39,831 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-27 04:29:39,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:29:39,935 INFO L225 Difference]: With dead ends: 46748 [2020-10-27 04:29:39,935 INFO L226 Difference]: Without dead ends: 30693 [2020-10-27 04:29:39,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:29:40,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30693 states. [2020-10-27 04:29:42,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30693 to 30690. [2020-10-27 04:29:42,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30690 states. [2020-10-27 04:29:42,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30690 states to 30690 states and 42855 transitions. [2020-10-27 04:29:42,958 INFO L78 Accepts]: Start accepts. Automaton has 30690 states and 42855 transitions. Word has length 101 [2020-10-27 04:29:42,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:29:42,959 INFO L481 AbstractCegarLoop]: Abstraction has 30690 states and 42855 transitions. [2020-10-27 04:29:42,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 04:29:42,959 INFO L276 IsEmpty]: Start isEmpty. Operand 30690 states and 42855 transitions. [2020-10-27 04:29:42,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 04:29:42,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:29:42,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:29:42,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 04:29:42,960 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:29:42,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:29:42,961 INFO L82 PathProgramCache]: Analyzing trace with hash 629648611, now seen corresponding path program 1 times [2020-10-27 04:29:42,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:29:42,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313321121] [2020-10-27 04:29:42,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:29:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:42,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:43,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:43,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:46,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:46,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 04:29:46,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:29:46,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3843 [2020-10-27 04:29:46,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:46,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:29:46,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 04:29:46,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-27 04:29:46,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:47,073 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:29:47,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:29:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:47,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:47,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:47,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:29:47,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:47,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:29:47,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:47,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:47,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:47,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:47,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:29:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:47,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:47,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:47,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:29:47,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:47,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:29:47,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:47,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:47,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:47,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 04:29:47,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:47,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:29:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:47,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:47,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:47,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:29:47,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:47,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:29:47,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:47,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:47,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:29:47,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:47,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:29:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:47,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:47,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:47,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:47,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:47,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:29:47,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:47,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:47,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:47,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:47,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:47,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:29:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:47,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:47,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:47,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:47,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:47,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:29:47,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:47,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:47,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:47,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:47,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:47,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:29:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:47,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:47,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:47,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:47,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:47,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:29:47,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:47,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:29:47,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:29:47,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:29:47,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:47,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:29:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:47,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:47,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:47,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:47,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:47,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:29:47,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:47,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:29:47,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:29:47,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:29:47,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:47,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:29:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:47,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:47,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:47,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:29:47,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:47,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:29:47,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:47,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:47,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:29:47,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:47,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:47,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:29:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:29:47,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:29:47,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:29:47,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:29:47,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:29:47,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:29:47,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:29:47,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:29:47,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 04:29:47,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:29:47,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:29:47,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:29:47,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313321121] [2020-10-27 04:29:47,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:29:47,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 04:29:47,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716541622] [2020-10-27 04:29:47,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 04:29:47,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:29:47,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 04:29:47,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:29:47,329 INFO L87 Difference]: Start difference. First operand 30690 states and 42855 transitions. Second operand 11 states. [2020-10-27 04:29:47,611 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:29:54,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:29:54,837 INFO L93 Difference]: Finished difference Result 88827 states and 124630 transitions. [2020-10-27 04:29:54,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 04:29:54,838 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-27 04:29:54,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:29:55,059 INFO L225 Difference]: With dead ends: 88827 [2020-10-27 04:29:55,059 INFO L226 Difference]: Without dead ends: 58215 [2020-10-27 04:29:55,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:29:55,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58215 states. [2020-10-27 04:30:01,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58215 to 58212. [2020-10-27 04:30:01,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58212 states. [2020-10-27 04:30:01,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58212 states to 58212 states and 80577 transitions. [2020-10-27 04:30:01,614 INFO L78 Accepts]: Start accepts. Automaton has 58212 states and 80577 transitions. Word has length 101 [2020-10-27 04:30:01,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:30:01,615 INFO L481 AbstractCegarLoop]: Abstraction has 58212 states and 80577 transitions. [2020-10-27 04:30:01,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 04:30:01,615 INFO L276 IsEmpty]: Start isEmpty. Operand 58212 states and 80577 transitions. [2020-10-27 04:30:01,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 04:30:01,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:30:01,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:30:01,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 04:30:01,617 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:30:01,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:30:01,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1749573203, now seen corresponding path program 1 times [2020-10-27 04:30:01,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:30:01,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579812837] [2020-10-27 04:30:01,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:30:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:01,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:01,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:02,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:02,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 04:30:02,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:30:02,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1274 [2020-10-27 04:30:02,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:02,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:30:02,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-27 04:30:02,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 04:30:02,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:03,148 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 04:30:03,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:30:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:03,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:03,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:03,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:30:03,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:03,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:30:03,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:03,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:03,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:30:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:03,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:03,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:03,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 04:30:03,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:30:03,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:30:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:03,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 04:30:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:03,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:03,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:03,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:30:03,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:03,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:30:03,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:03,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:03,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:03,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:30:03,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:03,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 04:30:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:03,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:03,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:03,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:03,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:03,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:30:03,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:03,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:03,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:03,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:30:03,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:03,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 04:30:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:03,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:03,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:03,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:03,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:03,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:30:03,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:03,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:03,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:03,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:30:03,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:03,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:30:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:03,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:03,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:03,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:03,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:03,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:30:03,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:30:03,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:03,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 04:30:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:03,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:03,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:03,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:03,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:03,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:30:03,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:03,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:30:03,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:30:03,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:30:03,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:03,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 04:30:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:03,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:03,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:03,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:30:03,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:03,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:30:03,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:03,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:30:03,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:30:03,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:30:03,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:03,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 04:30:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:30:03,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:30:03,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:30:03,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 04:30:03,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:30:03,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:30:03,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:30:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:30:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 04:30:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:30:03,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:30:03,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:30:03,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579812837] [2020-10-27 04:30:03,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:30:03,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 04:30:03,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692976850] [2020-10-27 04:30:03,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 04:30:03,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:30:03,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 04:30:03,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:30:03,401 INFO L87 Difference]: Start difference. First operand 58212 states and 80577 transitions. Second operand 11 states. [2020-10-27 04:30:03,669 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 04:30:15,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:30:15,867 INFO L93 Difference]: Finished difference Result 168496 states and 234159 transitions. [2020-10-27 04:30:15,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 04:30:15,867 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-27 04:30:15,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:30:16,670 INFO L225 Difference]: With dead ends: 168496 [2020-10-27 04:30:16,670 INFO L226 Difference]: Without dead ends: 110369 [2020-10-27 04:30:16,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:30:16,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110369 states. [2020-10-27 04:30:29,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110369 to 110366. [2020-10-27 04:30:29,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110366 states.