/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=DEEPEST --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.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:57:33,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:57:33,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:57:33,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:57:33,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:57:33,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:57:33,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:57:33,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:57:33,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:57:33,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:57:33,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:57:33,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:57:33,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:57:33,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:57:33,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:57:33,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:57:33,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:57:33,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:57:33,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:57:33,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:57:33,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:57:33,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:57:33,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:57:33,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:57:33,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:57:33,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:57:33,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:57:33,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:57:33,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:57:33,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:57:33,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:57:33,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:57:33,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:57:33,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:57:33,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:57:33,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:57:33,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:57:33,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:57:33,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:57:33,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:57:33,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:57:33,465 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 22:57:33,510 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:57:33,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:57:33,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:57:33,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:57:33,515 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:57:33,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:57:33,516 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:57:33,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:57:33,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:57:33,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:57:33,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:57:33,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:57:33,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:57:33,518 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:57:33,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:57:33,519 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:57:33,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:57:33,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:57:33,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:57:33,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:57:33,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:57:33,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:57:33,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:57:33,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:57:33,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:57:33,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:57:33,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:57:33,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:57:33,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:57:33,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:57:33,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:57:33,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:57:33,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:57:33,908 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:57:33,908 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:57:33,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2020-10-27 22:57:33,988 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/859c1e5c6/e67f952bff4f41c2ade00e70538b3ad1/FLAG76f9916e3 [2020-10-27 22:57:34,575 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:57:34,576 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2020-10-27 22:57:34,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/859c1e5c6/e67f952bff4f41c2ade00e70538b3ad1/FLAG76f9916e3 [2020-10-27 22:57:34,896 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/859c1e5c6/e67f952bff4f41c2ade00e70538b3ad1 [2020-10-27 22:57:34,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:57:34,906 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:57:34,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:57:34,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:57:34,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:57:34,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:57:34" (1/1) ... [2020-10-27 22:57:34,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62046dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:57:34, skipping insertion in model container [2020-10-27 22:57:34,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:57:34" (1/1) ... [2020-10-27 22:57:34,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:57:34,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:57:35,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:57:35,237 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:57:35,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:57:35,317 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:57:35,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:57:35 WrapperNode [2020-10-27 22:57:35,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:57:35,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:57:35,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:57:35,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:57:35,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:57:35" (1/1) ... [2020-10-27 22:57:35,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:57:35" (1/1) ... [2020-10-27 22:57:35,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:57:35" (1/1) ... [2020-10-27 22:57:35,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:57:35" (1/1) ... [2020-10-27 22:57:35,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:57:35" (1/1) ... [2020-10-27 22:57:35,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:57:35" (1/1) ... [2020-10-27 22:57:35,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:57:35" (1/1) ... [2020-10-27 22:57:35,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:57:35,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:57:35,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:57:35,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:57:35,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:57:35" (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 22:57:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:57:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:57:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:57:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 22:57:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 22:57:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 22:57:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 22:57:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 22:57:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 22:57:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 22:57:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 22:57:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:57:35,503 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 22:57:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:57:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:57:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:57:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:57:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 22:57:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 22:57:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 22:57:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 22:57:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 22:57:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 22:57:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 22:57:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 22:57:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 22:57:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 22:57:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 22:57:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 22:57:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 22:57:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:57:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:57:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:57:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:57:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:57:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:57:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:57:36,403 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:57:36,404 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 22:57:36,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:57:36 BoogieIcfgContainer [2020-10-27 22:57:36,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:57:36,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:57:36,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:57:36,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:57:36,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:57:34" (1/3) ... [2020-10-27 22:57:36,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5045748d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:57:36, skipping insertion in model container [2020-10-27 22:57:36,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:57:35" (2/3) ... [2020-10-27 22:57:36,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5045748d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:57:36, skipping insertion in model container [2020-10-27 22:57:36,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:57:36" (3/3) ... [2020-10-27 22:57:36,416 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c [2020-10-27 22:57:36,430 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:57:36,435 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 22:57:36,449 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 22:57:36,478 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:57:36,478 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:57:36,478 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:57:36,478 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:57:36,478 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:57:36,479 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:57:36,479 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:57:36,479 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:57:36,498 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2020-10-27 22:57:36,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 22:57:36,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:57:36,509 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 22:57:36,510 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:57:36,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:57:36,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1652664608, now seen corresponding path program 1 times [2020-10-27 22:57:36,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:57:36,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041218582] [2020-10-27 22:57:36,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:57:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:36,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:37,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:37,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 22:57:37,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:37,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-10-27 22:57:37,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:37,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:37,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 22:57:37,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:37,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:57:37,510 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 22:57:37,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:57:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:37,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:37,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:37,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:57:37,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:37,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 22:57:37,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:37,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:37,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:37,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:37,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:57:37,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:57:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:37,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:37,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:37,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:57:37,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:37,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:37,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:37,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:37,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:37,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:37,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:37,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 22:57:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:37,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:37,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:37,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:37,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:37,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:37,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:37,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:57:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:37,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:57:37,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 22:57:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:37,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:37,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:37,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:37,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:37,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:57:37,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:37,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:57:37,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 22:57:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:37,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:37,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:37,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:37,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:37,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:57:37,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:37,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:37,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:37,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:37,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:57:37,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 22:57:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:37,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:37,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:37,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:37,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:37,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:57:37,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:37,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:37,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:37,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:37,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:37,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 22:57:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:37,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:37,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:37,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:37,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:37,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:57:37,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:37,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:37,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:37,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:37,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:37,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 22:57:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:37,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:37,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:37,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:37,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:37,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:57:37,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:37,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:37,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:57:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:37,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:37,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:37,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:57:37,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:37,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:37,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:37,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:37,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:57:37,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:37,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:37,801 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 22:57:37,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041218582] [2020-10-27 22:57:37,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:57:37,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 22:57:37,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728431249] [2020-10-27 22:57:37,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 22:57:37,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:57:37,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 22:57:37,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 22:57:37,827 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 8 states. [2020-10-27 22:57:38,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:57:38,991 INFO L93 Difference]: Finished difference Result 219 states and 317 transitions. [2020-10-27 22:57:38,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 22:57:38,993 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-27 22:57:38,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:57:39,004 INFO L225 Difference]: With dead ends: 219 [2020-10-27 22:57:39,004 INFO L226 Difference]: Without dead ends: 126 [2020-10-27 22:57:39,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:57:39,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-27 22:57:39,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-10-27 22:57:39,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-27 22:57:39,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 187 transitions. [2020-10-27 22:57:39,068 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 187 transitions. Word has length 68 [2020-10-27 22:57:39,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:57:39,068 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 187 transitions. [2020-10-27 22:57:39,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 22:57:39,069 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 187 transitions. [2020-10-27 22:57:39,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 22:57:39,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:57:39,075 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 22:57:39,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:57:39,075 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:57:39,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:57:39,076 INFO L82 PathProgramCache]: Analyzing trace with hash 2096565282, now seen corresponding path program 1 times [2020-10-27 22:57:39,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:57:39,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520505028] [2020-10-27 22:57:39,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:57:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:39,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:39,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:39,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 22:57:39,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:39,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 735 [2020-10-27 22:57:39,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:39,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:57:39,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 22:57:39,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:57:39,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:40,113 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 22:57:40,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:57:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:40,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:40,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:40,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:57:40,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:40,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 22:57:40,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:40,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:40,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:40,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:40,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:40,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:57:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:40,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:40,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:40,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:57:40,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:40,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:57:40,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:40,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:40,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:40,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:57:40,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 22:57:40,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 22:57:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:40,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:40,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:40,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:40,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:40,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:57:40,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:40,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:40,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:57:40,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:57:40,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:57:40,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 22:57:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:40,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:40,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:40,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:40,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:40,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:57:40,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:40,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:40,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:40,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:40,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:40,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 22:57:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:40,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:40,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:40,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:40,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:40,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:57:40,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:40,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:40,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:40,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:40,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:40,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 22:57:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:40,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:40,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:40,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:40,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:40,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:57:40,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:40,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:40,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:40,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:40,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:40,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 22:57:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:40,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:40,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:40,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:40,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:40,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:57:40,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:40,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:40,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:40,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:40,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:40,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 22:57:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:40,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:40,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:40,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:40,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:40,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:40,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:40,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:40,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:40,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:40,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:40,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:57:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:40,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:40,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:40,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:57:40,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:40,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:40,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:40,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:40,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:57:40,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:40,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:40,543 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 22:57:40,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520505028] [2020-10-27 22:57:40,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:57:40,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 22:57:40,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864418206] [2020-10-27 22:57:40,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 22:57:40,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:57:40,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 22:57:40,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 22:57:40,548 INFO L87 Difference]: Start difference. First operand 126 states and 187 transitions. Second operand 14 states. [2020-10-27 22:57:40,876 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 22:57:41,173 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 22:57:41,547 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 22:57:41,799 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 22:57:43,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:57:43,694 INFO L93 Difference]: Finished difference Result 220 states and 319 transitions. [2020-10-27 22:57:43,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 22:57:43,694 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-27 22:57:43,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:57:43,699 INFO L225 Difference]: With dead ends: 220 [2020-10-27 22:57:43,699 INFO L226 Difference]: Without dead ends: 137 [2020-10-27 22:57:43,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:57:43,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-27 22:57:43,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 126. [2020-10-27 22:57:43,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-27 22:57:43,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 156 transitions. [2020-10-27 22:57:43,727 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 156 transitions. Word has length 68 [2020-10-27 22:57:43,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:57:43,740 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 156 transitions. [2020-10-27 22:57:43,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 22:57:43,740 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 156 transitions. [2020-10-27 22:57:43,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 22:57:43,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:57:43,743 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 22:57:43,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:57:43,743 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:57:43,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:57:43,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1450431595, now seen corresponding path program 1 times [2020-10-27 22:57:43,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:57:43,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890858810] [2020-10-27 22:57:43,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:57:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:43,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:43,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:43,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:44,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:46,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:48,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:48,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-27 22:57:48,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:57:48,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-27 22:57:48,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:48,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:48,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-27 22:57:48,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 22:57:48,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:57:49,044 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 22:57:49,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:57:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:49,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:49,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:49,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:57:49,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:49,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:57:49,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:49,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:49,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:49,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:49,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:49,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:57:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:49,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:49,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:49,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 22:57:49,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:49,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 22:57:49,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 22:57:49,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:49,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:57:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:49,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:49,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:49,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:49,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:49,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:49,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:49,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:49,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:57:49,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:49,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:57:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:49,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:49,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:49,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:49,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:49,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:57:49,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:49,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:49,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:49,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:49,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:49,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 22:57:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:49,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:49,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:49,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:49,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:49,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:57:49,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:49,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:49,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:57:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:49,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:49,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:49,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:49,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:49,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:57:49,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:49,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:49,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:49,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:49,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:49,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:57:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:49,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:49,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:49,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:49,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:49,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:57:49,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:49,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:49,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 22:57:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:49,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:49,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:49,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:49,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:49,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:57:49,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:49,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:49,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 22:57:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:49,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:49,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:49,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:57:49,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:49,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:49,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:49,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:49,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:57:49,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:49,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:49,367 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 22:57:49,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [890858810] [2020-10-27 22:57:49,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:57:49,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:57:49,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616265187] [2020-10-27 22:57:49,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:57:49,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:57:49,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:57:49,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:57:49,370 INFO L87 Difference]: Start difference. First operand 126 states and 156 transitions. Second operand 11 states. [2020-10-27 22:57:49,615 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 22:57:51,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:57:51,594 INFO L93 Difference]: Finished difference Result 274 states and 362 transitions. [2020-10-27 22:57:51,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 22:57:51,595 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-10-27 22:57:51,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:57:51,599 INFO L225 Difference]: With dead ends: 274 [2020-10-27 22:57:51,600 INFO L226 Difference]: Without dead ends: 197 [2020-10-27 22:57:51,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:57:51,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-27 22:57:51,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2020-10-27 22:57:51,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-27 22:57:51,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 251 transitions. [2020-10-27 22:57:51,639 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 251 transitions. Word has length 98 [2020-10-27 22:57:51,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:57:51,639 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 251 transitions. [2020-10-27 22:57:51,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:57:51,639 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 251 transitions. [2020-10-27 22:57:51,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 22:57:51,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:57:51,643 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 22:57:51,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:57:51,643 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:57:51,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:57:51,644 INFO L82 PathProgramCache]: Analyzing trace with hash -727753291, now seen corresponding path program 1 times [2020-10-27 22:57:51,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:57:51,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384595647] [2020-10-27 22:57:51,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:57:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:51,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:51,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:51,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:52,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:56,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:56,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-27 22:57:56,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:57:56,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 22:57:56,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:56,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:56,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 22:57:56,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-27 22:57:56,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:56,953 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 22:57:56,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:57:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:56,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:56,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:56,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:57:56,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:56,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:57:56,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:56,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:56,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:56,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:56,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:56,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:57:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:56,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:56,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:56,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 22:57:56,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:56,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:57:56,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:56,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:56,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:56,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 22:57:56,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:57:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:57,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:57,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:57,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:57,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:57:57,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:57:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:57,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:57:57,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:57,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:57,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:57,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 22:57:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:57,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:57:57,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:57,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:57:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:57,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:57:57,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:57,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:57,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:57:57,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:57:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:57,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:57:57,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:57,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:57,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:57:57,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 22:57:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:57:57,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:57:57,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:57,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:57:57,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:57,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 22:57:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:57,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:57,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:57,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:57:57,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:57,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:57:57,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:57:57,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:57,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:57,261 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 22:57:57,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384595647] [2020-10-27 22:57:57,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:57:57,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:57:57,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739195519] [2020-10-27 22:57:57,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:57:57,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:57:57,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:57:57,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:57:57,266 INFO L87 Difference]: Start difference. First operand 194 states and 251 transitions. Second operand 11 states. [2020-10-27 22:57:57,531 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 22:57:59,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:57:59,695 INFO L93 Difference]: Finished difference Result 472 states and 639 transitions. [2020-10-27 22:57:59,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 22:57:59,696 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-10-27 22:57:59,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:57:59,700 INFO L225 Difference]: With dead ends: 472 [2020-10-27 22:57:59,700 INFO L226 Difference]: Without dead ends: 327 [2020-10-27 22:57:59,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:57:59,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-27 22:57:59,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 324. [2020-10-27 22:57:59,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-27 22:57:59,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 431 transitions. [2020-10-27 22:57:59,789 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 431 transitions. Word has length 98 [2020-10-27 22:57:59,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:57:59,790 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 431 transitions. [2020-10-27 22:57:59,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:57:59,790 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 431 transitions. [2020-10-27 22:57:59,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 22:57:59,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:57:59,802 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 22:57:59,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:57:59,803 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:57:59,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:57:59,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1473336021, now seen corresponding path program 1 times [2020-10-27 22:57:59,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:57:59,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18426053] [2020-10-27 22:57:59,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:57:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:59,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:59,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:00,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:03,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:03,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-27 22:58:03,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:58:03,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3367 [2020-10-27 22:58:03,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:03,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:03,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-27 22:58:03,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-27 22:58:03,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:03,449 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 22:58:03,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:58:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:03,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:03,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:03,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:58:03,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:03,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:58:03,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:03,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:03,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:03,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:03,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:03,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:58:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:03,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:03,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:03,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 22:58:03,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:03,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:58:03,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:03,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:03,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:03,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:03,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:03,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:58:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:03,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:03,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:03,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:58:03,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:03,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:58:03,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:03,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:03,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:03,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:58:03,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:03,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:58:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:03,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:03,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:03,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:03,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:03,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:58:03,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:03,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:03,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:03,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:58:03,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:03,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 22:58:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:03,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:03,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:03,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:03,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:03,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:58:03,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:03,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:03,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:03,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:03,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:03,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:58:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:03,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:03,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:03,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:03,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:03,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:03,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:03,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:03,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:03,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:03,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:03,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:58:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:03,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:03,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:03,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:03,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:03,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:03,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:03,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:03,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:03,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:03,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:03,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 22:58:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:03,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:03,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:03,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:03,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:03,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:03,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:03,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:03,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:03,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:03,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:03,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 22:58:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:03,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:03,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:03,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:58:03,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:03,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:58:03,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:03,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:03,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:58:03,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:03,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:03,769 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 22:58:03,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18426053] [2020-10-27 22:58:03,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:58:03,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:58:03,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46676272] [2020-10-27 22:58:03,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:58:03,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:58:03,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:58:03,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:58:03,771 INFO L87 Difference]: Start difference. First operand 324 states and 431 transitions. Second operand 11 states. [2020-10-27 22:58:04,028 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 22:58:06,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:58:06,003 INFO L93 Difference]: Finished difference Result 850 states and 1163 transitions. [2020-10-27 22:58:06,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 22:58:06,004 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-10-27 22:58:06,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:58:06,009 INFO L225 Difference]: With dead ends: 850 [2020-10-27 22:58:06,009 INFO L226 Difference]: Without dead ends: 575 [2020-10-27 22:58:06,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:58:06,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2020-10-27 22:58:06,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 572. [2020-10-27 22:58:06,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-10-27 22:58:06,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 771 transitions. [2020-10-27 22:58:06,092 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 771 transitions. Word has length 98 [2020-10-27 22:58:06,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:58:06,092 INFO L481 AbstractCegarLoop]: Abstraction has 572 states and 771 transitions. [2020-10-27 22:58:06,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:58:06,092 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 771 transitions. [2020-10-27 22:58:06,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 22:58:06,094 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:58:06,094 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 22:58:06,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:58:06,094 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:58:06,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:58:06,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1234520543, now seen corresponding path program 1 times [2020-10-27 22:58:06,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:58:06,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664974984] [2020-10-27 22:58:06,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:58:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:06,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:06,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:07,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:07,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-27 22:58:07,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:58:07,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1456 [2020-10-27 22:58:07,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-27 22:58:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:58:07,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:07,809 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 22:58:07,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:58:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:07,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:07,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:07,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:58:07,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:07,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:58:07,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:07,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:07,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:07,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:07,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:07,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:58:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:07,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:07,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:07,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 22:58:07,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:07,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 22:58:07,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:07,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:07,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:07,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:58:07,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:07,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:58:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:07,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:07,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:07,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:58:07,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:07,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:58:07,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:07,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:07,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:07,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:58:07,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:07,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:58:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:07,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:07,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:07,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:07,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:07,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:58:07,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:07,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:07,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 22:58:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:07,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:07,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:07,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:07,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:07,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:58:07,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:07,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:07,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:07,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:07,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:08,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:58:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:08,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:08,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:08,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:08,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:08,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:58:08,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:08,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:08,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:08,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:08,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:08,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:58:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:08,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:08,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:08,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:08,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:08,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:58:08,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:08,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:08,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 22:58:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:08,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:08,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:08,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:08,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:08,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:58:08,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:58:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:08,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:08,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 22:58:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:08,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:08,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:08,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:58:08,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:08,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:58:08,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:58:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:08,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:08,122 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 22:58:08,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664974984] [2020-10-27 22:58:08,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:58:08,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:58:08,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863238965] [2020-10-27 22:58:08,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:58:08,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:58:08,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:58:08,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:58:08,125 INFO L87 Difference]: Start difference. First operand 572 states and 771 transitions. Second operand 11 states. [2020-10-27 22:58:08,372 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 22:58:10,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:58:10,407 INFO L93 Difference]: Finished difference Result 1570 states and 2151 transitions. [2020-10-27 22:58:10,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 22:58:10,408 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-10-27 22:58:10,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:58:10,416 INFO L225 Difference]: With dead ends: 1570 [2020-10-27 22:58:10,416 INFO L226 Difference]: Without dead ends: 1047 [2020-10-27 22:58:10,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:58:10,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-10-27 22:58:10,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1044. [2020-10-27 22:58:10,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2020-10-27 22:58:10,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1411 transitions. [2020-10-27 22:58:10,522 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1411 transitions. Word has length 98 [2020-10-27 22:58:10,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:58:10,522 INFO L481 AbstractCegarLoop]: Abstraction has 1044 states and 1411 transitions. [2020-10-27 22:58:10,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:58:10,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1411 transitions. [2020-10-27 22:58:10,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 22:58:10,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:58:10,524 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 22:58:10,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:58:10,524 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:58:10,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:58:10,525 INFO L82 PathProgramCache]: Analyzing trace with hash 2109231469, now seen corresponding path program 1 times [2020-10-27 22:58:10,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:58:10,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432199396] [2020-10-27 22:58:10,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:58:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:10,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:10,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:13,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:13,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-27 22:58:13,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:58:13,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3260 [2020-10-27 22:58:13,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 22:58:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 22:58:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 22:58:13,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:14,134 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 22:58:14,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:58:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:14,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:14,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:14,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:58:14,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:14,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:58:14,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:14,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:14,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:58:14,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:58:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:14,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:14,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:14,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 22:58:14,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:14,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 22:58:14,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:14,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:58:14,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:14,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:58:14,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:58:14,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:58:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:14,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:14,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:14,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:58:14,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:14,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:58:14,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:14,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:14,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:14,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:58:14,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:14,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:58:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:14,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:14,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:14,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:14,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:14,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:58:14,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:14,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:14,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:14,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:14,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:14,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 22:58:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:14,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:14,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:14,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:14,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:14,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:58:14,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:14,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:14,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:14,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:14,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:14,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:58:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:14,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:14,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:14,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:14,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:14,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:58:14,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:14,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:14,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:14,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:14,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:14,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:58:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:14,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:14,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:14,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:14,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:14,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 22:58:14,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:14,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:14,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:14,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:14,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:14,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 22:58:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:14,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:14,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:14,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:14,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:14,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:58:14,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:14,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:14,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:14,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:14,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:14,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 22:58:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:14,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:14,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:14,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:58:14,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:14,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:14,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:14,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:14,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:58:14,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:58:14,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:14,733 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 22:58:14,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432199396] [2020-10-27 22:58:14,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:58:14,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 22:58:14,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285322050] [2020-10-27 22:58:14,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 22:58:14,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:58:14,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 22:58:14,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2020-10-27 22:58:14,737 INFO L87 Difference]: Start difference. First operand 1044 states and 1411 transitions. Second operand 19 states. [2020-10-27 22:58:15,059 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 22:58:15,278 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 22:58:15,516 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 22:58:15,739 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 22:58:15,993 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 22:58:17,592 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 22:58:18,803 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 22:58:20,014 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 22:58:24,063 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-27 22:58:24,313 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 22:58:29,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:58:29,866 INFO L93 Difference]: Finished difference Result 12221 states and 16857 transitions. [2020-10-27 22:58:29,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-10-27 22:58:29,867 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 98 [2020-10-27 22:58:29,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:58:29,933 INFO L225 Difference]: With dead ends: 12221 [2020-10-27 22:58:29,933 INFO L226 Difference]: Without dead ends: 11226 [2020-10-27 22:58:29,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4175 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=2092, Invalid=9464, Unknown=0, NotChecked=0, Total=11556 [2020-10-27 22:58:29,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11226 states. [2020-10-27 22:58:30,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11226 to 11196. [2020-10-27 22:58:30,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11196 states. [2020-10-27 22:58:31,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11196 states to 11196 states and 15251 transitions. [2020-10-27 22:58:31,041 INFO L78 Accepts]: Start accepts. Automaton has 11196 states and 15251 transitions. Word has length 98 [2020-10-27 22:58:31,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:58:31,042 INFO L481 AbstractCegarLoop]: Abstraction has 11196 states and 15251 transitions. [2020-10-27 22:58:31,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 22:58:31,042 INFO L276 IsEmpty]: Start isEmpty. Operand 11196 states and 15251 transitions. [2020-10-27 22:58:31,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 22:58:31,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:58:31,044 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 22:58:31,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 22:58:31,044 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:58:31,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:58:31,045 INFO L82 PathProgramCache]: Analyzing trace with hash -2009350243, now seen corresponding path program 1 times [2020-10-27 22:58:31,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:58:31,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770082069] [2020-10-27 22:58:31,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:58:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:31,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:31,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:31,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:32,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:33,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:33,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 22:58:33,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:58:33,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2638 [2020-10-27 22:58:33,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:33,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:58:33,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 112 [2020-10-27 22:58:33,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:58:33,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:34,049 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 22:58:34,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:58:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:34,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:34,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:34,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:58:34,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:34,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:58:34,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:34,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:34,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:34,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:34,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:34,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:58:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:34,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:34,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:34,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 22:58:34,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:34,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:58:34,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:34,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:34,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:34,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:34,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:34,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:58:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:34,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:34,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:34,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:58:34,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:34,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:58:34,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:34,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:34,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:34,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:34,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:34,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:58:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:34,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:34,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:34,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:34,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:34,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:58:34,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:34,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:34,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 22:58:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:34,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:34,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:34,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:34,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:34,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:58:34,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:34,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:34,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:34,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:34,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:34,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:58:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:34,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:34,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:34,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:34,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:34,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:58:34,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:34,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:34,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:58:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:34,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:34,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:34,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:34,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:34,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:58:34,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:34,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:34,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:34,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:34,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:34,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 22:58:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:34,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:34,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:34,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:34,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:34,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:58:34,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:34,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:34,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:34,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:34,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:34,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 22:58:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:34,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:34,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:34,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:34,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 22:58:34,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:58:34,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:58:34,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:34,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 22:58:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:58:34,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:34,301 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 22:58:34,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770082069] [2020-10-27 22:58:34,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:58:34,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 22:58:34,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900218475] [2020-10-27 22:58:34,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 22:58:34,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:58:34,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 22:58:34,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:58:34,304 INFO L87 Difference]: Start difference. First operand 11196 states and 15251 transitions. Second operand 13 states. [2020-10-27 22:58:35,582 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 22:58:38,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:58:38,248 INFO L93 Difference]: Finished difference Result 28414 states and 38851 transitions. [2020-10-27 22:58:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 22:58:38,249 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 100 [2020-10-27 22:58:38,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:58:38,350 INFO L225 Difference]: With dead ends: 28414 [2020-10-27 22:58:38,350 INFO L226 Difference]: Without dead ends: 17267 [2020-10-27 22:58:38,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2020-10-27 22:58:38,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17267 states. [2020-10-27 22:58:40,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17267 to 17264. [2020-10-27 22:58:40,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17264 states. [2020-10-27 22:58:40,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17264 states to 17264 states and 23351 transitions. [2020-10-27 22:58:40,113 INFO L78 Accepts]: Start accepts. Automaton has 17264 states and 23351 transitions. Word has length 100 [2020-10-27 22:58:40,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:58:40,114 INFO L481 AbstractCegarLoop]: Abstraction has 17264 states and 23351 transitions. [2020-10-27 22:58:40,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 22:58:40,114 INFO L276 IsEmpty]: Start isEmpty. Operand 17264 states and 23351 transitions. [2020-10-27 22:58:40,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 22:58:40,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:58:40,115 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 22:58:40,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 22:58:40,116 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:58:40,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:58:40,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1021546581, now seen corresponding path program 1 times [2020-10-27 22:58:40,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:58:40,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047139126] [2020-10-27 22:58:40,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:58:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:40,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:40,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:43,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:43,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 22:58:43,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:58:43,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3782 [2020-10-27 22:58:43,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:43,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 22:58:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 22:58:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 22:58:43,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:44,184 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 22:58:44,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:58:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:44,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:44,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:44,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:58:44,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:44,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 22:58:44,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:44,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:58:44,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:44,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:58:44,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:44,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:58:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:44,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:44,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:44,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 22:58:44,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:44,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 22:58:44,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:58:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:58:44,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:44,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:58:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:44,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:44,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:44,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:58:44,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:44,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:58:44,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:44,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:44,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:58:44,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:58:44,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:44,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:58:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:44,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:44,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:44,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:44,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:44,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:58:44,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:44,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:44,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:44,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 22:58:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:44,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:44,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:44,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:44,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:44,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 22:58:44,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:44,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:44,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:44,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:44,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:44,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:58:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:44,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:44,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:44,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:44,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:44,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:58:44,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:44,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:58:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:44,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:44,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:44,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:44,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:44,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 22:58:44,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:44,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:44,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:44,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:44,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:44,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 22:58:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:44,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:44,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:44,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:58:44,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:44,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:58:44,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:44,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:58:44,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:58:44,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:58:44,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:44,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 22:58:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:58:44,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:58:44,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:58:44,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 22:58:44,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:58:44,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:58:44,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:58:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:58:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:58:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:58:44,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:58:44,818 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 22:58:44,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047139126] [2020-10-27 22:58:44,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:58:44,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 22:58:44,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715343944] [2020-10-27 22:58:44,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 22:58:44,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:58:44,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 22:58:44,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2020-10-27 22:58:44,821 INFO L87 Difference]: Start difference. First operand 17264 states and 23351 transitions. Second operand 19 states. [2020-10-27 22:58:45,164 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-27 22:58:45,422 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 22:58:45,663 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 22:58:45,922 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 22:58:46,196 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-27 22:58:46,794 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 22:58:47,299 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-27 22:58:49,094 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 22:58:50,260 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-27 22:58:52,834 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-27 22:58:54,776 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-27 22:58:55,236 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 22:58:55,760 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-27 22:58:59,664 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 22:59:03,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:59:03,697 INFO L93 Difference]: Finished difference Result 45392 states and 63119 transitions. [2020-10-27 22:59:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2020-10-27 22:59:03,698 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 100 [2020-10-27 22:59:03,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:59:03,961 INFO L225 Difference]: With dead ends: 45392 [2020-10-27 22:59:03,961 INFO L226 Difference]: Without dead ends: 28177 [2020-10-27 22:59:04,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5001 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=2387, Invalid=11185, Unknown=0, NotChecked=0, Total=13572 [2020-10-27 22:59:04,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28177 states. [2020-10-27 22:59:06,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28177 to 25916. [2020-10-27 22:59:06,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25916 states. [2020-10-27 22:59:06,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25916 states to 25916 states and 35327 transitions. [2020-10-27 22:59:06,827 INFO L78 Accepts]: Start accepts. Automaton has 25916 states and 35327 transitions. Word has length 100 [2020-10-27 22:59:06,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:59:06,828 INFO L481 AbstractCegarLoop]: Abstraction has 25916 states and 35327 transitions. [2020-10-27 22:59:06,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 22:59:06,828 INFO L276 IsEmpty]: Start isEmpty. Operand 25916 states and 35327 transitions. [2020-10-27 22:59:06,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 22:59:06,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:59:06,829 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 22:59:06,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 22:59:06,830 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:59:06,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:59:06,830 INFO L82 PathProgramCache]: Analyzing trace with hash 703467097, now seen corresponding path program 1 times [2020-10-27 22:59:06,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:59:06,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1683652604] [2020-10-27 22:59:06,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:59:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:06,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:06,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:06,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:08,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:08,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:08,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:11,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:11,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 22:59:11,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:59:11,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-27 22:59:11,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:11,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:59:11,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-27 22:59:11,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 22:59:11,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:12,178 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 22:59:12,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:59:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:12,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:12,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:12,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:59:12,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:12,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:59:12,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:12,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:12,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:12,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:12,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:59:12,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:59:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:12,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:12,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:12,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 22:59:12,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:12,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:59:12,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:12,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:59:12,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:59:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:12,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:12,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:12,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:59:12,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:12,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:59:12,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:12,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:12,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:12,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:12,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:59:12,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:59:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:12,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:12,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:12,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:12,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:12,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:59:12,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:12,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:12,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:12,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:12,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:59:12,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 22:59:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:12,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:12,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:12,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:12,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:12,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:59:12,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:12,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:12,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:12,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:12,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:59:12,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:59:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:12,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:12,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:12,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:59:12,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:12,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:59:12,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:12,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:59:12,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:12,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:59:12,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:59:12,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 22:59:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:12,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:12,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:12,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:12,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:12,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:59:12,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:12,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:12,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:12,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:12,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:59:12,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 22:59:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:12,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:12,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:12,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:12,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:12,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:59:12,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:12,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:12,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:12,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:12,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:59:12,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 22:59:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:12,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:12,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:12,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:59:12,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:12,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:59:12,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:12,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:12,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:59:12,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:12,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:12,571 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 22:59:12,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1683652604] [2020-10-27 22:59:12,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:59:12,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 22:59:12,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150668394] [2020-10-27 22:59:12,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:59:12,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:59:12,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:59:12,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:59:12,574 INFO L87 Difference]: Start difference. First operand 25916 states and 35327 transitions. Second operand 12 states. [2020-10-27 22:59:13,050 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-27 22:59:13,483 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 22:59:16,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:59:16,662 INFO L93 Difference]: Finished difference Result 60901 states and 82371 transitions. [2020-10-27 22:59:16,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 22:59:16,662 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 100 [2020-10-27 22:59:16,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:59:16,786 INFO L225 Difference]: With dead ends: 60901 [2020-10-27 22:59:16,786 INFO L226 Difference]: Without dead ends: 35034 [2020-10-27 22:59:16,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2020-10-27 22:59:16,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35034 states. [2020-10-27 22:59:18,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35034 to 26294. [2020-10-27 22:59:18,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26294 states. [2020-10-27 22:59:18,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26294 states to 26294 states and 35830 transitions. [2020-10-27 22:59:18,976 INFO L78 Accepts]: Start accepts. Automaton has 26294 states and 35830 transitions. Word has length 100 [2020-10-27 22:59:18,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:59:18,976 INFO L481 AbstractCegarLoop]: Abstraction has 26294 states and 35830 transitions. [2020-10-27 22:59:18,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 22:59:18,976 INFO L276 IsEmpty]: Start isEmpty. Operand 26294 states and 35830 transitions. [2020-10-27 22:59:18,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 22:59:18,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:59:18,977 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 22:59:18,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 22:59:18,977 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:59:18,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:59:18,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1281008254, now seen corresponding path program 1 times [2020-10-27 22:59:18,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:59:18,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139810103] [2020-10-27 22:59:18,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:59:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:19,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:19,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:19,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:19,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:19,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 22:59:19,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:59:19,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 666 [2020-10-27 22:59:19,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:19,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:19,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 22:59:19,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-27 22:59:19,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:19,892 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 22:59:19,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:59:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:19,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:19,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:19,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:59:19,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:19,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:59:19,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:19,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:19,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:19,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:19,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:19,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:59:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:19,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:19,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:19,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 22:59:19,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:19,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:59:19,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:19,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:19,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:19,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:59:19,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:19,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:59:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:19,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:19,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:19,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:59:19,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:19,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:59:19,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:19,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:19,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:19,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:59:19,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:19,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:59:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:19,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:19,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:19,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:19,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:19,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:59:19,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:19,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:19,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:19,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:19,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:20,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 22:59:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:20,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:20,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:20,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:20,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:20,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:59:20,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:20,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:20,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:20,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:20,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:20,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:59:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:20,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:20,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:20,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:20,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:20,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:59:20,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:20,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:20,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:59:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:20,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:20,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:20,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:20,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:20,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:59:20,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:20,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:20,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:20,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:20,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:20,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 22:59:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:20,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:20,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:20,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:20,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:20,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:59:20,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:20,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:20,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:20,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:20,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:20,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 22:59:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:20,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:20,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:20,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:20,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:59:20,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:59:20,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:59:20,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:20,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:20,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:59:20,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:59:20,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:20,204 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 22:59:20,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139810103] [2020-10-27 22:59:20,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:59:20,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:59:20,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233675356] [2020-10-27 22:59:20,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:59:20,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:59:20,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:59:20,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:59:20,207 INFO L87 Difference]: Start difference. First operand 26294 states and 35830 transitions. Second operand 11 states. [2020-10-27 22:59:20,451 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 22:59:22,560 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 22:59:25,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:59:25,326 INFO L93 Difference]: Finished difference Result 58997 states and 80626 transitions. [2020-10-27 22:59:25,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 22:59:25,327 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-27 22:59:25,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:59:25,466 INFO L225 Difference]: With dead ends: 58997 [2020-10-27 22:59:25,466 INFO L226 Difference]: Without dead ends: 32773 [2020-10-27 22:59:25,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2020-10-27 22:59:25,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32773 states. [2020-10-27 22:59:28,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32773 to 32764. [2020-10-27 22:59:28,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32764 states. [2020-10-27 22:59:28,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32764 states to 32764 states and 44640 transitions. [2020-10-27 22:59:28,703 INFO L78 Accepts]: Start accepts. Automaton has 32764 states and 44640 transitions. Word has length 101 [2020-10-27 22:59:28,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:59:28,703 INFO L481 AbstractCegarLoop]: Abstraction has 32764 states and 44640 transitions. [2020-10-27 22:59:28,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:59:28,703 INFO L276 IsEmpty]: Start isEmpty. Operand 32764 states and 44640 transitions. [2020-10-27 22:59:28,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 22:59:28,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:59:28,705 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 22:59:28,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 22:59:28,705 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:59:28,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:59:28,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1750442015, now seen corresponding path program 1 times [2020-10-27 22:59:28,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:59:28,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696548948] [2020-10-27 22:59:28,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:59:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:28,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:28,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:30,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:30,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 22:59:30,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:59:30,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2110 [2020-10-27 22:59:30,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:30,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:59:30,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-27 22:59:30,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:59:30,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:31,106 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 22:59:31,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:59:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:31,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:31,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:31,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:59:31,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:31,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:59:31,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:31,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:31,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:31,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:59:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:31,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:31,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:31,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 22:59:31,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:31,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:59:31,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:31,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:31,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:31,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:31,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:31,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:59:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:31,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:31,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:31,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:59:31,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:31,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:59:31,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:31,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:31,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:59:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:31,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:31,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:31,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:31,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:31,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:59:31,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:31,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:31,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:31,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:31,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:31,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 22:59:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:31,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:31,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:31,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:31,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:31,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:59:31,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:31,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:31,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:31,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:31,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:31,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:59:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:31,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:31,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:31,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:31,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:31,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:31,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:31,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:31,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:31,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:31,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:31,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:59:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:31,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:31,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:31,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:31,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:31,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:31,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:31,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:31,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:31,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:31,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:31,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 22:59:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:31,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:31,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:31,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:31,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:31,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:31,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:31,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:31,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:31,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:31,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:31,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 22:59:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:31,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:31,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:31,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:59:31,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:31,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:59:31,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:31,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:31,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:31,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 22:59:31,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:31,358 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 22:59:31,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [696548948] [2020-10-27 22:59:31,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:59:31,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 22:59:31,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215599253] [2020-10-27 22:59:31,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 22:59:31,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:59:31,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 22:59:31,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 22:59:31,360 INFO L87 Difference]: Start difference. First operand 32764 states and 44640 transitions. Second operand 14 states. [2020-10-27 22:59:32,514 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 22:59:32,818 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 22:59:33,068 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 22:59:33,345 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 22:59:33,623 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-27 22:59:36,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:59:36,188 INFO L93 Difference]: Finished difference Result 35568 states and 50106 transitions. [2020-10-27 22:59:36,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 22:59:36,189 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 101 [2020-10-27 22:59:36,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:59:36,351 INFO L225 Difference]: With dead ends: 35568 [2020-10-27 22:59:36,352 INFO L226 Difference]: Without dead ends: 35565 [2020-10-27 22:59:36,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-10-27 22:59:36,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35565 states. [2020-10-27 22:59:38,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35565 to 33484. [2020-10-27 22:59:38,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33484 states. [2020-10-27 22:59:38,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33484 states to 33484 states and 45288 transitions. [2020-10-27 22:59:38,959 INFO L78 Accepts]: Start accepts. Automaton has 33484 states and 45288 transitions. Word has length 101 [2020-10-27 22:59:38,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:59:38,959 INFO L481 AbstractCegarLoop]: Abstraction has 33484 states and 45288 transitions. [2020-10-27 22:59:38,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 22:59:38,959 INFO L276 IsEmpty]: Start isEmpty. Operand 33484 states and 45288 transitions. [2020-10-27 22:59:38,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-27 22:59:38,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:59:38,984 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:38,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 22:59:38,984 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:59:38,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:59:38,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1192828991, now seen corresponding path program 1 times [2020-10-27 22:59:38,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:59:38,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [325591579] [2020-10-27 22:59:38,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:59:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:39,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:39,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:39,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:39,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:39,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-27 22:59:44,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:59:44,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 22:59:44,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:44,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 22:59:44,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-27 22:59:44,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,262 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 22:59:44,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:59:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:59:44,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:59:44,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:44,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:44,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:44,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:59:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 22:59:44,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:59:44,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:44,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:44,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:44,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:59:44,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:59:44,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:59:44,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:44,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:44,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:44,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:59:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:44,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:44,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:44,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:44,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:44,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 22:59:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:44,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:44,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:44,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:44,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 22:59:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:44,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:59:44,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:59:44,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 22:59:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:44,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:59:44,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:44,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 22:59:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:44,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:59:44,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:44,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:44,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:44,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 22:59:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:59:44,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:59:44,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:44,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:44,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:59:44,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 22:59:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:59:44,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:59:44,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:44,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:44,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:59:44,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 22:59:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:44,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:59:44,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:44,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:44,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:44,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 22:59:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:44,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:59:44,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:59:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:59:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:59:44,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-27 22:59:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:44,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:59:44,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:59:44,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:59:44,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:59:44,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 22:59:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 22:59:44,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:59:44,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 22:59:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:44,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-27 22:59:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 22:59:44,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:59:44,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:44,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-27 22:59:44,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:44,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-27 22:59:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:44,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:44,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:59:44,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:59:44,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:59:44,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:59:44,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:59:44,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:59:44,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:59:44,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:59:44,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:59:44,594 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-27 22:59:44,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [325591579] [2020-10-27 22:59:44,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:59:44,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 22:59:44,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092934326] [2020-10-27 22:59:44,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:59:44,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:59:44,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:59:44,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:59:44,596 INFO L87 Difference]: Start difference. First operand 33484 states and 45288 transitions. Second operand 11 states. [2020-10-27 22:59:44,923 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 22:59:45,754 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 22:59:50,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:59:50,470 INFO L93 Difference]: Finished difference Result 97400 states and 132851 transitions. [2020-10-27 22:59:50,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:59:50,471 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 153 [2020-10-27 22:59:50,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:59:50,717 INFO L225 Difference]: With dead ends: 97400 [2020-10-27 22:59:50,718 INFO L226 Difference]: Without dead ends: 63986 [2020-10-27 22:59:50,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:59:50,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63986 states. [2020-10-27 22:59:55,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63986 to 61878. [2020-10-27 22:59:55,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61878 states. [2020-10-27 22:59:55,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61878 states to 61878 states and 83091 transitions. [2020-10-27 22:59:55,489 INFO L78 Accepts]: Start accepts. Automaton has 61878 states and 83091 transitions. Word has length 153 [2020-10-27 22:59:55,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:59:55,490 INFO L481 AbstractCegarLoop]: Abstraction has 61878 states and 83091 transitions. [2020-10-27 22:59:55,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:59:55,490 INFO L276 IsEmpty]: Start isEmpty. Operand 61878 states and 83091 transitions. [2020-10-27 22:59:55,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-27 22:59:55,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:59:55,508 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:55,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 22:59:55,508 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:59:55,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:59:55,509 INFO L82 PathProgramCache]: Analyzing trace with hash -504753867, now seen corresponding path program 1 times [2020-10-27 22:59:55,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:59:55,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455168500] [2020-10-27 22:59:55,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:59:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:59:55,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:55,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:55,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:59:56,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:00,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:00,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-27 23:00:00,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:00:00,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 23:00:00,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:00,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 23:00:00,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-27 23:00:00,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-27 23:00:00,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:00,816 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 23:00:00,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:00:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:00,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:00,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:00,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:00:00,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:00,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:00:00,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:00,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:00:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:00:00,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:00,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:00:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:00,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:00,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:00,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 23:00:00,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:00,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:00:00,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:00,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:00,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:00,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 23:00:00,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:00,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 23:00:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:00,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:00,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:00,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:00:00,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:00,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:00:00,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:00:00,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:00,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 23:00:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:00,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:00,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:00,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:00,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:00,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:00:00,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:00,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:00,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:00,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:00:00,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:00,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:00:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:00,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:00,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:00,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:00,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:00,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:00:00,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:00,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:00,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:00,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:00:00,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:00,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 23:00:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:00,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:00,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:00,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:00,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:00,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:00:00,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:00,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:00,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:00,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:00,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:00,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 23:00:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:01,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:01,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:01,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:01,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:01,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:00:01,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:01,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:01,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:01,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:00:01,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:01,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 23:00:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:01,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:01,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:01,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:01,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:01,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:00:01,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:01,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:01,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:01,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:00:01,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:01,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 23:00:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:01,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:01,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:01,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:00:01,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:01,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:00:01,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:01,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:00:01,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:01,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:00:01,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:01,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 23:00:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:01,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:01,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:01,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:00:01,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:01,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:00:01,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:00:01,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:01,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 23:00:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:01,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:01,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:01,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:01,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:01,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:00:01,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:01,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:01,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 23:00:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:01,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:01,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:01,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:01,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:01,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:00:01,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:01,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:01,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:01,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:01,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:01,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-27 23:00:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:01,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:01,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:01,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:00:01,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:01,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:00:01,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:00:01,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:01,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:00:01,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:01,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 23:00:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:01,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:01,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:01,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:01,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:01,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:00:01,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:01,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:01,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 23:00:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:01,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:01,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:01,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:01,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:01,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:00:01,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:01,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:01,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:01,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:01,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:01,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-27 23:00:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:01,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:01,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:01,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:00:01,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:01,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:00:01,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:01,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:01,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:00:01,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:00:01,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:01,315 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-27 23:00:01,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455168500] [2020-10-27 23:00:01,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 23:00:01,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-27 23:00:01,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666566514] [2020-10-27 23:00:01,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 23:00:01,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:00:01,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 23:00:01,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:00:01,317 INFO L87 Difference]: Start difference. First operand 61878 states and 83091 transitions. Second operand 19 states. [2020-10-27 23:00:01,823 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 152 [2020-10-27 23:00:02,136 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 23:00:03,229 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 23:00:03,462 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-27 23:00:03,784 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-27 23:00:04,136 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-27 23:00:04,328 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-27 23:00:04,934 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 153 [2020-10-27 23:00:05,127 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-27 23:00:05,327 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-27 23:00:05,563 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 23:00:06,148 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-27 23:00:06,375 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-27 23:00:07,147 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 23:00:07,450 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 23:00:07,685 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 23:00:07,940 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 23:00:08,253 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 23:00:09,658 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-27 23:00:11,094 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-27 23:00:12,872 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-27 23:00:25,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:00:25,361 INFO L93 Difference]: Finished difference Result 212543 states and 292440 transitions. [2020-10-27 23:00:25,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2020-10-27 23:00:25,362 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 153 [2020-10-27 23:00:25,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:00:26,416 INFO L225 Difference]: With dead ends: 212543 [2020-10-27 23:00:26,416 INFO L226 Difference]: Without dead ends: 154772 [2020-10-27 23:00:26,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3090 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=1634, Invalid=7678, Unknown=0, NotChecked=0, Total=9312 [2020-10-27 23:00:26,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154772 states. [2020-10-27 23:00:38,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154772 to 150576. [2020-10-27 23:00:38,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150576 states. [2020-10-27 23:00:39,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150576 states to 150576 states and 203607 transitions. [2020-10-27 23:00:39,615 INFO L78 Accepts]: Start accepts. Automaton has 150576 states and 203607 transitions. Word has length 153 [2020-10-27 23:00:39,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:00:39,616 INFO L481 AbstractCegarLoop]: Abstraction has 150576 states and 203607 transitions. [2020-10-27 23:00:39,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 23:00:39,616 INFO L276 IsEmpty]: Start isEmpty. Operand 150576 states and 203607 transitions. [2020-10-27 23:00:39,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-27 23:00:39,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:00:39,635 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:00:39,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 23:00:39,635 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:00:39,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:00:39,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1174760181, now seen corresponding path program 1 times [2020-10-27 23:00:39,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:00:39,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2516922] [2020-10-27 23:00:39,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:00:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:39,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:39,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:40,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:40,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:41,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:44,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:44,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-27 23:00:44,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:00:44,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 23:00:44,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:44,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 23:00:44,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-27 23:00:44,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-27 23:00:44,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:44,940 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 23:00:44,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:00:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:44,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:44,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:44,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:00:44,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:44,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:00:44,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:44,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:00:44,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:44,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:00:44,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:44,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:00:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:44,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:44,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:44,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 23:00:44,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:44,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:00:44,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:44,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:44,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:44,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 23:00:44,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:44,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 23:00:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:44,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:44,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:44,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:00:44,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:44,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:00:44,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:44,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:44,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:44,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:00:44,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:45,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 23:00:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:45,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:45,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:45,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:45,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:45,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:00:45,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:45,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:45,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:45,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:00:45,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:45,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 23:00:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:45,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:45,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:45,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:45,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:45,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:00:45,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:45,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:45,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:45,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:00:45,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:45,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 23:00:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:45,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:45,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:45,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:45,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:45,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:00:45,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:45,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:45,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:45,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:00:45,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:45,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 23:00:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:45,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:45,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:45,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:45,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:45,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:00:45,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:00:45,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:45,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 23:00:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:45,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:45,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:45,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:45,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:45,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:00:45,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:45,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:45,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:45,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:45,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:45,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 23:00:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:45,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:45,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:45,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:00:45,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:45,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:00:45,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:45,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:00:45,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:45,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:00:45,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:45,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 23:00:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:45,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:45,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:45,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:00:45,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:45,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:00:45,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:45,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:45,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:45,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:00:45,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:45,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 23:00:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:45,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:45,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:45,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:45,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:45,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:00:45,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:45,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:45,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:45,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:45,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:45,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 23:00:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:45,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:45,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:45,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:45,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:45,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:00:45,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:45,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:45,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:45,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:45,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:45,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-27 23:00:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:45,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:45,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:45,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:45,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:45,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:00:45,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:45,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:45,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:45,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:45,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:45,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 23:00:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:45,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:45,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:45,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:00:45,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:45,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:00:45,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:00:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:00:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:00:45,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:45,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-27 23:00:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:45,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:45,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:45,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:00:45,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:45,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:00:45,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:45,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:00:45,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:00:45,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:00:45,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:45,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-27 23:00:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:00:45,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:00:45,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:00:45,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:00:45,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:00:45,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:00:45,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:00:45,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:00:45,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:00:45,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:00:45,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:00:45,445 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-27 23:00:45,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2516922] [2020-10-27 23:00:45,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 23:00:45,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-27 23:00:45,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642062252] [2020-10-27 23:00:45,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 23:00:45,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:00:45,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 23:00:45,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:00:45,448 INFO L87 Difference]: Start difference. First operand 150576 states and 203607 transitions. Second operand 19 states. [2020-10-27 23:00:45,951 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 152 [2020-10-27 23:00:46,330 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 23:00:47,522 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 23:00:47,749 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-27 23:00:48,058 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-27 23:00:48,429 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-27 23:00:48,786 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-27 23:00:49,171 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-27 23:00:49,410 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-27 23:00:50,064 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 153 [2020-10-27 23:00:50,343 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 23:00:50,590 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 23:00:50,900 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 23:00:51,137 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 23:00:51,421 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 23:00:51,717 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 23:00:53,428 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-27 23:00:54,999 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72