/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-var-start-time.5.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:04:47,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:04:47,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:04:47,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:04:47,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:04:47,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:04:47,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:04:47,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:04:47,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:04:47,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:04:47,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:04:47,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:04:47,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:04:47,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:04:47,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:04:47,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:04:47,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:04:47,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:04:47,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:04:47,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:04:47,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:04:47,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:04:47,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:04:47,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:04:47,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:04:47,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:04:47,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:04:47,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:04:47,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:04:47,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:04:47,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:04:47,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:04:47,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:04:47,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:04:47,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:04:47,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:04:47,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:04:47,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:04:47,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:04:47,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:04:47,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:04:47,650 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 23:04:47,707 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:04:47,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:04:47,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:04:47,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:04:47,711 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:04:47,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:04:47,712 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:04:47,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:04:47,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:04:47,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:04:47,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:04:47,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:04:47,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:04:47,715 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:04:47,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:04:47,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:04:47,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:04:47,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:04:47,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:04:47,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:04:47,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:04:47,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:04:47,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:04:47,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:04:47,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:04:47,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:04:47,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:04:47,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:04:47,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:04:47,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:04:48,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:04:48,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:04:48,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:04:48,223 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:04:48,224 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:04:48,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c [2020-10-27 23:04:48,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea6bb863a/5a92f05afef0446c8a1a6e6af8b98a8a/FLAG18d501e32 [2020-10-27 23:04:49,050 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:04:49,050 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c [2020-10-27 23:04:49,062 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea6bb863a/5a92f05afef0446c8a1a6e6af8b98a8a/FLAG18d501e32 [2020-10-27 23:04:49,374 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea6bb863a/5a92f05afef0446c8a1a6e6af8b98a8a [2020-10-27 23:04:49,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:04:49,385 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:04:49,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:04:49,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:04:49,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:04:49,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:04:49" (1/1) ... [2020-10-27 23:04:49,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81edc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:04:49, skipping insertion in model container [2020-10-27 23:04:49,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:04:49" (1/1) ... [2020-10-27 23:04:49,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:04:49,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:04:49,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:04:49,708 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:04:49,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:04:49,820 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:04:49,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:04:49 WrapperNode [2020-10-27 23:04:49,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:04:49,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:04:49,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:04:49,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:04:49,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:04:49" (1/1) ... [2020-10-27 23:04:49,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:04:49" (1/1) ... [2020-10-27 23:04:49,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:04:49" (1/1) ... [2020-10-27 23:04:49,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:04:49" (1/1) ... [2020-10-27 23:04:49,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:04:49" (1/1) ... [2020-10-27 23:04:49,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:04:49" (1/1) ... [2020-10-27 23:04:49,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:04:49" (1/1) ... [2020-10-27 23:04:49,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:04:49,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:04:49,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:04:49,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:04:49,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:04:49" (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 23:04:50,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:04:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:04:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:04:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:04:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 23:04:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 23:04:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 23:04:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 23:04:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 23:04:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:04:50,005 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:04:50,005 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:04:50,005 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:04:50,005 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:04:50,005 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:04:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:04:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:04:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:04:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:04:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:04:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:04:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:04:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:04:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 23:04:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 23:04:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 23:04:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 23:04:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 23:04:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:04:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:04:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:04:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:04:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:04:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:04:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:04:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:04:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:04:51,018 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:04:51,018 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:04:51,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:04:51 BoogieIcfgContainer [2020-10-27 23:04:51,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:04:51,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:04:51,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:04:51,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:04:51,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:04:49" (1/3) ... [2020-10-27 23:04:51,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bbb09f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:04:51, skipping insertion in model container [2020-10-27 23:04:51,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:04:49" (2/3) ... [2020-10-27 23:04:51,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bbb09f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:04:51, skipping insertion in model container [2020-10-27 23:04:51,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:04:51" (3/3) ... [2020-10-27 23:04:51,030 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c [2020-10-27 23:04:51,043 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:04:51,049 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:04:51,062 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:04:51,092 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:04:51,092 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:04:51,092 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:04:51,092 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:04:51,092 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:04:51,093 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:04:51,093 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:04:51,093 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:04:51,119 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2020-10-27 23:04:51,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 23:04:51,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:04:51,132 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 23:04:51,132 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:04:51,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:04:51,139 INFO L82 PathProgramCache]: Analyzing trace with hash -924276508, now seen corresponding path program 1 times [2020-10-27 23:04:51,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:04:51,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604685823] [2020-10-27 23:04:51,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:04:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:51,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:51,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:51,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 23:04:51,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:51,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 477 [2020-10-27 23:04:51,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:51,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:04:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:51,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:04:52,324 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:04:52,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:04:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:52,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:52,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:52,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:04:52,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:52,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 23:04:52,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:52,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:52,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:04:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:52,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:52,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:52,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:04:52,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:52,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:04:52,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:52,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:52,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:52,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:52,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:04:52,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:04:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:52,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:52,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:52,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:04:52,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:52,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:04:52,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:52,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:52,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:04:52,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:52,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:04:52,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:04:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:52,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:52,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:52,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:52,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:52,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 23:04:52,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:52,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:52,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:04:52,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:52,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:04:52,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 23:04:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:52,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:52,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:52,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:52,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:52,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:04:52,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:52,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:52,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:04:52,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:52,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:52,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 23:04:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:52,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:52,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:52,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:52,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:52,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:04:52,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:52,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:52,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:04:52,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:52,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:52,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:04:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:52,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:52,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:52,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:52,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:52,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:04:52,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:52,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:52,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:04:52,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:52,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:52,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 23:04:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:52,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:52,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:52,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:52,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:52,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:04:52,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:52,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:52,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:04:52,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:52,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:52,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 23:04:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:52,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:52,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:52,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:04:52,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:52,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:04:52,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:52,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:52,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:04:52,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:52,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:52,872 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 23:04:52,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604685823] [2020-10-27 23:04:52,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:04:52,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 23:04:52,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138074812] [2020-10-27 23:04:52,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 23:04:52,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:04:52,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 23:04:52,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 23:04:52,916 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 8 states. [2020-10-27 23:04:54,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:04:54,587 INFO L93 Difference]: Finished difference Result 281 states and 416 transitions. [2020-10-27 23:04:54,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 23:04:54,590 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-27 23:04:54,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:04:54,602 INFO L225 Difference]: With dead ends: 281 [2020-10-27 23:04:54,602 INFO L226 Difference]: Without dead ends: 160 [2020-10-27 23:04:54,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:04:54,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-27 23:04:54,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 155. [2020-10-27 23:04:54,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-27 23:04:54,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 235 transitions. [2020-10-27 23:04:54,685 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 235 transitions. Word has length 68 [2020-10-27 23:04:54,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:04:54,686 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 235 transitions. [2020-10-27 23:04:54,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 23:04:54,686 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 235 transitions. [2020-10-27 23:04:54,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 23:04:54,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:04:54,693 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 23:04:54,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:04:54,694 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:04:54,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:04:54,697 INFO L82 PathProgramCache]: Analyzing trace with hash -480375834, now seen corresponding path program 1 times [2020-10-27 23:04:54,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:04:54,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384831065] [2020-10-27 23:04:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:04:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:54,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:55,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:55,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 23:04:55,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:55,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 617 [2020-10-27 23:04:55,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:55,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:04:55,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 23:04:55,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:04:55,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:55,727 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:04:55,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:04:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:55,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:55,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:55,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:04:55,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:55,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 23:04:55,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:55,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:55,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:04:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:55,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:55,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:55,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:04:55,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:55,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:04:55,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:55,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:04:55,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:55,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:04:55,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:55,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:04:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:55,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:55,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:55,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:04:55,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:55,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:04:55,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:04:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:04:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:04:55,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:55,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:04:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:55,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:55,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:55,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:55,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:55,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:04:55,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:55,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:04:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:55,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:55,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 23:04:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:55,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:55,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:55,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:55,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:55,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:04:55,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:04:55,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:55,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:55,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 23:04:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:55,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:55,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:55,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:55,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:55,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:04:55,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:55,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:55,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:04:55,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:55,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:55,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:04:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:56,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:56,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:56,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:56,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:56,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:04:56,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:04:56,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:56,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:56,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 23:04:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:56,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:56,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:56,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:56,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:56,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:04:56,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:56,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:56,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:04:56,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:56,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:56,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 23:04:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:56,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:56,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:56,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:04:56,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:04:56,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:04:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:56,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:56,073 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 23:04:56,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384831065] [2020-10-27 23:04:56,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:04:56,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:04:56,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774316300] [2020-10-27 23:04:56,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:04:56,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:04:56,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:04:56,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:04:56,077 INFO L87 Difference]: Start difference. First operand 155 states and 235 transitions. Second operand 14 states. [2020-10-27 23:04:56,435 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:04:56,741 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:04:57,204 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:04:57,515 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:05:00,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:00,004 INFO L93 Difference]: Finished difference Result 282 states and 418 transitions. [2020-10-27 23:05:00,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 23:05:00,005 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-27 23:05:00,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:00,010 INFO L225 Difference]: With dead ends: 282 [2020-10-27 23:05:00,010 INFO L226 Difference]: Without dead ends: 171 [2020-10-27 23:05:00,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-27 23:05:00,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-27 23:05:00,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 155. [2020-10-27 23:05:00,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-27 23:05:00,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 203 transitions. [2020-10-27 23:05:00,043 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 203 transitions. Word has length 68 [2020-10-27 23:05:00,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:00,044 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 203 transitions. [2020-10-27 23:05:00,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:05:00,044 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 203 transitions. [2020-10-27 23:05:00,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-27 23:05:00,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:00,047 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] [2020-10-27 23:05:00,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:05:00,048 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:00,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:00,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1756922108, now seen corresponding path program 1 times [2020-10-27 23:05:00,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:00,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208002631] [2020-10-27 23:05:00,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:00,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:00,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:00,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:00,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:01,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:01,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:05,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:05,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-27 23:05:05,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 23:05:05,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 23:05:05,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-27 23:05:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 23:05:05,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:05:05,455 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:05,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:05,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:05,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:05,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:05,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:05,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:05:05,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:05,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:05,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:05,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:05,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:05,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:05,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:05,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:05,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:05:05,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:05,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 23:05:05,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 23:05:05,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:05,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:05:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:05,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:05,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:05,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:05,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:05,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:05,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:05,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:05,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:05:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:05,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:05,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:05,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:05,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:05,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:05:05,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:05,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:05,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:05,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:05:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:05,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:05,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:05,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:05,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:05,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:05:05,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:05,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:05,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:05,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:05,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:05,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 23:05:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:05,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:05,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:05,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:05,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:05,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:05:05,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:05,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:05,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:05,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:05,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:05,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:05:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:05,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:05,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:05,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:05,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:05,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:05:05,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:05,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:05,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:05:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:05,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:05,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:05,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:05,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:05,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 23:05:05,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:05,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:05,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:05,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:05:05,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:05,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:05:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:05,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:05,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:05,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:05,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:05,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:05,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:05,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:05,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:05,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:05,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:05,906 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 23:05:05,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208002631] [2020-10-27 23:05:05,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:05,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:05:05,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902362194] [2020-10-27 23:05:05,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:05:05,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:05,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:05:05,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:05:05,910 INFO L87 Difference]: Start difference. First operand 155 states and 203 transitions. Second operand 11 states. [2020-10-27 23:05:06,228 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:09,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:09,052 INFO L93 Difference]: Finished difference Result 362 states and 500 transitions. [2020-10-27 23:05:09,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:05:09,055 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 99 [2020-10-27 23:05:09,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:09,065 INFO L225 Difference]: With dead ends: 362 [2020-10-27 23:05:09,066 INFO L226 Difference]: Without dead ends: 257 [2020-10-27 23:05:09,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:05:09,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-27 23:05:09,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 245. [2020-10-27 23:05:09,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-10-27 23:05:09,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 334 transitions. [2020-10-27 23:05:09,127 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 334 transitions. Word has length 99 [2020-10-27 23:05:09,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:09,128 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 334 transitions. [2020-10-27 23:05:09,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:05:09,128 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 334 transitions. [2020-10-27 23:05:09,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 23:05:09,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:09,133 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 23:05:09,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:05:09,133 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:09,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:09,134 INFO L82 PathProgramCache]: Analyzing trace with hash 253637008, now seen corresponding path program 1 times [2020-10-27 23:05:09,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:09,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212637349] [2020-10-27 23:05:09,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:09,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:09,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:09,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:09,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:12,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:14,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:14,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 23:05:14,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:05:14,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-27 23:05:14,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:14,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:14,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 23:05:14,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-27 23:05:14,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:14,560 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:14,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:14,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:14,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:14,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:14,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:14,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:05:14,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:14,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:14,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:14,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:14,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:14,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:14,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:14,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:14,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:05:14,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:14,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 23:05:14,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:14,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:14,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:14,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 23:05:14,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:14,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:05:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:14,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:14,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:14,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:14,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:14,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:14,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:14,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:14,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:14,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:14,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:14,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:05:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:14,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:14,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:14,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:14,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:14,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:05:14,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:14,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:14,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:14,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:14,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:05:14,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:05:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:14,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:14,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:14,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:14,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:14,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:05:14,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:14,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:14,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:14,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:14,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:14,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 23:05:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:14,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:14,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:14,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:14,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:14,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:05:14,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:14,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:14,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:14,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:14,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:14,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:05:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:14,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:14,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:14,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:14,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:14,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:05:14,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:05:14,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:14,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:05:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:14,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:14,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:14,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:14,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:14,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:14,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:14,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:14,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 23:05:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:14,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:14,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:14,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:14,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:14,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:14,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:14,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:14,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:14,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:14,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:14,981 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 23:05:14,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212637349] [2020-10-27 23:05:14,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:14,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:05:14,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524430978] [2020-10-27 23:05:14,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:05:14,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:14,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:05:14,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:05:14,988 INFO L87 Difference]: Start difference. First operand 245 states and 334 transitions. Second operand 11 states. [2020-10-27 23:05:15,309 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:18,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:18,131 INFO L93 Difference]: Finished difference Result 627 states and 882 transitions. [2020-10-27 23:05:18,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:05:18,133 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-27 23:05:18,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:18,139 INFO L225 Difference]: With dead ends: 627 [2020-10-27 23:05:18,139 INFO L226 Difference]: Without dead ends: 432 [2020-10-27 23:05:18,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:05:18,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-10-27 23:05:18,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 413. [2020-10-27 23:05:18,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-10-27 23:05:18,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 576 transitions. [2020-10-27 23:05:18,198 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 576 transitions. Word has length 100 [2020-10-27 23:05:18,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:18,199 INFO L481 AbstractCegarLoop]: Abstraction has 413 states and 576 transitions. [2020-10-27 23:05:18,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:05:18,199 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 576 transitions. [2020-10-27 23:05:18,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 23:05:18,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:18,201 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 23:05:18,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:05:18,202 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:18,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:18,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1095521438, now seen corresponding path program 1 times [2020-10-27 23:05:18,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:18,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [979988863] [2020-10-27 23:05:18,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:18,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:18,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:18,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:18,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:23,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:23,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 23:05:23,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:05:23,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-27 23:05:23,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:23,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:23,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 23:05:23,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 23:05:23,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:23,556 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:23,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:23,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:23,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:23,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:23,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:23,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:05:23,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:23,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:23,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:23,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:23,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:23,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:23,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:23,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:23,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:05:23,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:23,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 23:05:23,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:23,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:23,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:23,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 23:05:23,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:23,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:05:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:23,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:23,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:23,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:23,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:23,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:05:23,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:23,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:23,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:23,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:23,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:23,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:05:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:23,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:23,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:23,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:23,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:23,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:05:23,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:23,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:23,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:05:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:23,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:23,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:23,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:23,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:23,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:05:23,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:23,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:23,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:23,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:23,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:23,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 23:05:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:23,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:23,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:23,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:23,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:23,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:05:23,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:23,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:23,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:23,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:05:23,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:23,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:05:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:23,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:23,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:23,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:23,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:23,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:23,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:23,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:23,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:23,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:23,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:23,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:05:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:23,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:23,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:23,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:23,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:23,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:23,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:23,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:23,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:23,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:23,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:23,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:05:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:23,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:23,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:23,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:23,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:23,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:05:23,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:23,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:23,929 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 23:05:23,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [979988863] [2020-10-27 23:05:23,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:23,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:05:23,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721661857] [2020-10-27 23:05:23,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:05:23,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:23,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:05:23,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:05:23,934 INFO L87 Difference]: Start difference. First operand 413 states and 576 transitions. Second operand 11 states. [2020-10-27 23:05:24,232 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:27,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:27,127 INFO L93 Difference]: Finished difference Result 1119 states and 1584 transitions. [2020-10-27 23:05:27,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:05:27,134 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-27 23:05:27,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:27,140 INFO L225 Difference]: With dead ends: 1119 [2020-10-27 23:05:27,140 INFO L226 Difference]: Without dead ends: 756 [2020-10-27 23:05:27,143 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:05:27,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-10-27 23:05:27,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 725. [2020-10-27 23:05:27,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2020-10-27 23:05:27,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 1020 transitions. [2020-10-27 23:05:27,215 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 1020 transitions. Word has length 101 [2020-10-27 23:05:27,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:27,215 INFO L481 AbstractCegarLoop]: Abstraction has 725 states and 1020 transitions. [2020-10-27 23:05:27,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:05:27,216 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 1020 transitions. [2020-10-27 23:05:27,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-27 23:05:27,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:27,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:05:27,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:05:27,218 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:27,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:27,219 INFO L82 PathProgramCache]: Analyzing trace with hash 915849752, now seen corresponding path program 1 times [2020-10-27 23:05:27,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:27,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893163769] [2020-10-27 23:05:27,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:27,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:27,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:27,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:30,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:30,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-27 23:05:30,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:05:30,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3405 [2020-10-27 23:05:30,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:30,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:30,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:05:30,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-27 23:05:30,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:30,977 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:30,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:30,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:30,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:30,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:30,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:30,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:05:30,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:30,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:30,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:30,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:31,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:31,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:31,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:31,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:05:31,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:31,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:05:31,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:31,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:31,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:31,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:05:31,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:31,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:05:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:31,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:31,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:31,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:31,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:31,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:31,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:31,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:31,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:31,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:31,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:31,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:05:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:31,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:31,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:31,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:31,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:31,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:05:31,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:31,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:31,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:31,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:31,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:31,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:05:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:31,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:31,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:31,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:31,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:31,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:05:31,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:31,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:05:31,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:31,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 23:05:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:31,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:31,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:31,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:31,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:31,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:31,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:31,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:31,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:31,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:31,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:31,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:05:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:31,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:31,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:31,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:31,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:31,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:31,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:31,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:31,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:31,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:31,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:31,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:05:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:31,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:31,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:31,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:31,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:31,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:31,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:31,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:31,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:31,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:31,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:31,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 23:05:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:31,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:31,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:31,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:31,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:31,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:05:31,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:31,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:31,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:31,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:31,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:31,315 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 23:05:31,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893163769] [2020-10-27 23:05:31,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:31,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:05:31,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784919803] [2020-10-27 23:05:31,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:05:31,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:31,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:05:31,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:05:31,319 INFO L87 Difference]: Start difference. First operand 725 states and 1020 transitions. Second operand 11 states. [2020-10-27 23:05:31,619 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:34,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:34,334 INFO L93 Difference]: Finished difference Result 2027 states and 2864 transitions. [2020-10-27 23:05:34,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:05:34,335 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-10-27 23:05:34,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:34,349 INFO L225 Difference]: With dead ends: 2027 [2020-10-27 23:05:34,349 INFO L226 Difference]: Without dead ends: 1352 [2020-10-27 23:05:34,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:05:34,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2020-10-27 23:05:34,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1301. [2020-10-27 23:05:34,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1301 states. [2020-10-27 23:05:34,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1828 transitions. [2020-10-27 23:05:34,489 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1828 transitions. Word has length 102 [2020-10-27 23:05:34,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:34,489 INFO L481 AbstractCegarLoop]: Abstraction has 1301 states and 1828 transitions. [2020-10-27 23:05:34,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:05:34,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1828 transitions. [2020-10-27 23:05:34,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-27 23:05:34,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:34,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:05:34,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:05:34,491 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:34,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:34,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1837106178, now seen corresponding path program 1 times [2020-10-27 23:05:34,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:34,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219160543] [2020-10-27 23:05:34,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:34,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:34,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:36,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:36,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 23:05:36,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:05:36,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1859 [2020-10-27 23:05:36,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:36,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:36,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 23:05:36,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 23:05:36,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:36,664 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:36,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:36,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:36,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:36,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:36,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:36,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:05:36,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:36,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:36,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:36,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:36,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:36,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:36,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:05:36,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:36,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:05:36,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:36,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:36,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:36,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:36,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:36,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:05:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:36,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:36,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:36,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:36,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:36,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:05:36,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:36,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:36,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:05:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:36,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:36,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:36,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:36,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:36,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:05:36,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:36,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:36,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:36,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:05:36,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:36,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:05:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:36,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:36,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:36,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:36,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:36,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:36,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:36,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:36,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:36,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:36,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:36,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 23:05:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:36,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:36,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:36,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:36,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:36,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:36,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:36,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:36,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:36,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:36,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:36,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:05:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:36,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:36,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:36,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:36,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:36,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:36,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:36,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:36,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:36,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:36,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:36,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:05:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:36,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:36,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:36,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:36,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:36,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:36,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:36,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:36,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:36,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:36,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:36,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:05:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:36,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:36,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:36,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:36,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:36,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:05:36,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:36,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:36,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:36,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:36,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:36,990 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 23:05:36,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219160543] [2020-10-27 23:05:36,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:36,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:05:36,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881804362] [2020-10-27 23:05:36,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:05:36,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:36,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:05:36,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:05:36,993 INFO L87 Difference]: Start difference. First operand 1301 states and 1828 transitions. Second operand 11 states. [2020-10-27 23:05:37,408 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:40,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:40,340 INFO L93 Difference]: Finished difference Result 3691 states and 5176 transitions. [2020-10-27 23:05:40,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:05:40,341 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-10-27 23:05:40,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:40,358 INFO L225 Difference]: With dead ends: 3691 [2020-10-27 23:05:40,358 INFO L226 Difference]: Without dead ends: 2440 [2020-10-27 23:05:40,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:05:40,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2020-10-27 23:05:40,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2357. [2020-10-27 23:05:40,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2357 states. [2020-10-27 23:05:40,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 3284 transitions. [2020-10-27 23:05:40,601 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 3284 transitions. Word has length 103 [2020-10-27 23:05:40,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:40,602 INFO L481 AbstractCegarLoop]: Abstraction has 2357 states and 3284 transitions. [2020-10-27 23:05:40,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:05:40,602 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 3284 transitions. [2020-10-27 23:05:40,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-27 23:05:40,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:40,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:05:40,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:05:40,604 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:40,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:40,605 INFO L82 PathProgramCache]: Analyzing trace with hash -272090558, now seen corresponding path program 1 times [2020-10-27 23:05:40,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:40,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303694447] [2020-10-27 23:05:40,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:40,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:40,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 23:05:44,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:05:44,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3549 [2020-10-27 23:05:44,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 23:05:44,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 23:05:44,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 23:05:44,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,521 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:44,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:44,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:05:44,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:44,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:44,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:44,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:05:44,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-27 23:05:44,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 23:05:44,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:44,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 23:05:44,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:05:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:44,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:44,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:44,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:44,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:44,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:05:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:44,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:05:44,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:44,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:44,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:05:44,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:05:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:44,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:05:44,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:44,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:44,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:05:44,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:05:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:44,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:05:44,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:44,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:44,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:05:44,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:05:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:45,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:45,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:45,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:45,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:45,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:05:45,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:45,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:45,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:45,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:05:45,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:45,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:05:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:45,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:45,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:45,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:45,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:45,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:05:45,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:45,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:45,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:45,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:05:45,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:45,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 23:05:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:45,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:45,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:45,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:45,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:45,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:45,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:45,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:45,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:05:45,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:05:45,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:45,163 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 23:05:45,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303694447] [2020-10-27 23:05:45,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:45,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 23:05:45,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669931758] [2020-10-27 23:05:45,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 23:05:45,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:45,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 23:05:45,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:05:45,166 INFO L87 Difference]: Start difference. First operand 2357 states and 3284 transitions. Second operand 19 states. [2020-10-27 23:05:45,507 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:05:45,835 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:05:46,117 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:05:46,433 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:46,738 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 23:05:52,162 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:05:52,449 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:05:52,774 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 23:05:53,081 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:05:53,382 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:06:03,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:06:03,666 INFO L93 Difference]: Finished difference Result 29206 states and 40938 transitions. [2020-10-27 23:06:03,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-10-27 23:06:03,667 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 104 [2020-10-27 23:06:03,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:06:03,846 INFO L225 Difference]: With dead ends: 29206 [2020-10-27 23:06:03,846 INFO L226 Difference]: Without dead ends: 26899 [2020-10-27 23:06:03,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3994 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=2082, Invalid=9260, Unknown=0, NotChecked=0, Total=11342 [2020-10-27 23:06:03,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26899 states. [2020-10-27 23:06:06,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26899 to 25989. [2020-10-27 23:06:06,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25989 states. [2020-10-27 23:06:06,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25989 states to 25989 states and 36388 transitions. [2020-10-27 23:06:06,262 INFO L78 Accepts]: Start accepts. Automaton has 25989 states and 36388 transitions. Word has length 104 [2020-10-27 23:06:06,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:06:06,262 INFO L481 AbstractCegarLoop]: Abstraction has 25989 states and 36388 transitions. [2020-10-27 23:06:06,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 23:06:06,262 INFO L276 IsEmpty]: Start isEmpty. Operand 25989 states and 36388 transitions. [2020-10-27 23:06:06,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-27 23:06:06,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:06:06,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:06:06,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:06:06,264 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:06:06,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:06:06,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1829394246, now seen corresponding path program 1 times [2020-10-27 23:06:06,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:06:06,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [722723494] [2020-10-27 23:06:06,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:06:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:06,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:06,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:08,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:08,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 23:06:08,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:06:08,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2098 [2020-10-27 23:06:08,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:06:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-27 23:06:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:06:08,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:08,723 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:06:08,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:06:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:08,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:08,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:08,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:06:08,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:08,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:06:08,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:08,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:08,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:08,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:08,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:08,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:06:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:08,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:08,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:08,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:06:08,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:08,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:06:08,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:08,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:08,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:08,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:08,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:08,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:06:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:08,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:08,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:08,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:06:08,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:08,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:06:08,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:08,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:08,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:08,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:06:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:08,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:08,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:08,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:08,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:08,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:06:08,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:08,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:08,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:06:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:08,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:08,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:08,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:08,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:08,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:08,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:08,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:08,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:08,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:08,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:08,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:06:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:08,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:08,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:08,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:08,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:08,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:08,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:08,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:08,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:08,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:08,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:08,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:06:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:08,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:08,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:08,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:08,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:08,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:08,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:08,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:08,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:08,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:08,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:08,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:06:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:08,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:08,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:08,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:08,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:08,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:08,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:08,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:08,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:08,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:08,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:08,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 23:06:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:08,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:08,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:08,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:06:08,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:08,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:06:08,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:08,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:08,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:08,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:06:08,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:09,031 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 23:06:09,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [722723494] [2020-10-27 23:06:09,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:06:09,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:06:09,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268892884] [2020-10-27 23:06:09,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:06:09,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:06:09,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:06:09,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:06:09,034 INFO L87 Difference]: Start difference. First operand 25989 states and 36388 transitions. Second operand 14 states. [2020-10-27 23:06:10,723 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:06:11,011 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 23:06:11,337 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:06:11,639 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 23:06:13,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:06:13,943 INFO L93 Difference]: Finished difference Result 30872 states and 43926 transitions. [2020-10-27 23:06:13,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 23:06:13,944 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 105 [2020-10-27 23:06:13,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:06:14,110 INFO L225 Difference]: With dead ends: 30872 [2020-10-27 23:06:14,110 INFO L226 Difference]: Without dead ends: 30869 [2020-10-27 23:06:14,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:06:14,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30869 states. [2020-10-27 23:06:16,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30869 to 27717. [2020-10-27 23:06:16,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27717 states. [2020-10-27 23:06:16,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27717 states to 27717 states and 38116 transitions. [2020-10-27 23:06:16,880 INFO L78 Accepts]: Start accepts. Automaton has 27717 states and 38116 transitions. Word has length 105 [2020-10-27 23:06:16,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:06:16,881 INFO L481 AbstractCegarLoop]: Abstraction has 27717 states and 38116 transitions. [2020-10-27 23:06:16,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:06:16,881 INFO L276 IsEmpty]: Start isEmpty. Operand 27717 states and 38116 transitions. [2020-10-27 23:06:16,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-27 23:06:16,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:06:16,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:06:16,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 23:06:16,883 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:06:16,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:06:16,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1126262166, now seen corresponding path program 1 times [2020-10-27 23:06:16,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:06:16,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155594480] [2020-10-27 23:06:16,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:06:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:16,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:16,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:18,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:18,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 23:06:18,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:06:18,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1394 [2020-10-27 23:06:18,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:18,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 23:06:18,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 23:06:18,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 23:06:18,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:18,635 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:06:18,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:06:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:18,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:18,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:18,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:06:18,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:18,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:06:18,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:18,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:18,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:18,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:18,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:18,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:06:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:18,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:18,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:18,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:06:18,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:18,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:06:18,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:18,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:18,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:18,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:06:18,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:18,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:06:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:18,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:18,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:18,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:06:18,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:18,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:06:18,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:18,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:18,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:18,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:06:18,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:18,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:06:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:18,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:18,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:18,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:18,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:18,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:06:18,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:18,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:06:18,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:18,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:18,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:18,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:06:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:18,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:18,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:18,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:18,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:18,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:06:18,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:06:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:18,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:18,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:06:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:18,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:18,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:18,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:18,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:18,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:06:18,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:18,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:06:18,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:18,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:18,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:18,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:06:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:18,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:18,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:18,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:18,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:18,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:06:18,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:18,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:06:18,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:18,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:18,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:19,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:06:19,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:19,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:19,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:19,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:19,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:19,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:06:19,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:06:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:06:19,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:19,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 23:06:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:19,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:19,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:19,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:19,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:19,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:06:19,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:19,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:19,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:06:19,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:19,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:19,122 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 23:06:19,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155594480] [2020-10-27 23:06:19,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:06:19,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-27 23:06:19,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255636663] [2020-10-27 23:06:19,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 23:06:19,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:06:19,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 23:06:19,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:06:19,124 INFO L87 Difference]: Start difference. First operand 27717 states and 38116 transitions. Second operand 18 states. [2020-10-27 23:06:19,534 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:19,920 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:20,748 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:21,501 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 23:06:21,868 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:22,181 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:06:23,282 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:06:23,721 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 23:06:24,108 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 23:06:24,428 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 23:06:24,759 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 23:06:25,349 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 23:06:25,646 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 23:06:27,155 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:06:27,580 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:06:27,931 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:28,255 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:06:28,552 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:28,883 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:06:29,185 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:29,803 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:30,093 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:30,436 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:30,736 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:31,058 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:31,352 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:32,014 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:06:32,451 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:32,741 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:06:35,108 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:35,473 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 23:06:35,791 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:36,132 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 23:06:36,463 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:36,806 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 23:06:37,180 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:37,535 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 23:06:38,019 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:38,329 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:38,648 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:38,955 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:39,270 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:39,595 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:39,930 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:40,246 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:40,567 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:40,896 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:41,226 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:41,558 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:41,824 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:06:42,082 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:06:42,253 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 23:06:42,393 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:06:42,722 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:06:43,021 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:06:43,598 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:06:43,901 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:06:44,215 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:06:44,519 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:06:44,832 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:06:45,150 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:06:46,103 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 23:06:47,069 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:06:47,407 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 23:06:54,679 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-27 23:07:00,948 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:02,766 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:07,389 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:07:07,711 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:07,911 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:08,115 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:09,206 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:09,683 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:10,716 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-27 23:07:11,002 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 23:07:14,649 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:14,813 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:14,980 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:15,190 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:07:16,299 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:16,784 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:16,976 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 23:07:19,557 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-27 23:08:04,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:04,106 INFO L93 Difference]: Finished difference Result 676296 states and 975728 transitions. [2020-10-27 23:08:04,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 303 states. [2020-10-27 23:08:04,113 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 106 [2020-10-27 23:08:04,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:07,862 INFO L225 Difference]: With dead ends: 676296 [2020-10-27 23:08:07,862 INFO L226 Difference]: Without dead ends: 648629 [2020-10-27 23:08:08,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42616 ImplicationChecksByTransitivity, 44.1s TimeCoverageRelationStatistics Valid=8249, Invalid=89407, Unknown=0, NotChecked=0, Total=97656 [2020-10-27 23:08:09,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648629 states.