/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.8_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:01:01,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:01:01,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:01:01,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:01:01,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:01:01,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:01:01,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:01:01,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:01:01,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:01:01,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:01:01,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:01:01,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:01:01,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:01:01,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:01:01,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:01:01,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:01:01,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:01:01,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:01:01,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:01:01,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:01:01,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:01:01,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:01:01,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:01:01,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:01:01,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:01:01,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:01:01,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:01:01,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:01:01,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:01:01,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:01:01,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:01:01,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:01:01,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:01:01,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:01:01,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:01:01,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:01:01,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:01:01,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:01:01,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:01:01,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:01:01,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:01:01,829 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 23:01:01,888 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:01:01,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:01:01,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:01:01,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:01:01,894 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:01:01,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:01:01,895 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:01:01,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:01:01,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:01:01,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:01:01,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:01:01,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:01:01,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:01:01,898 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:01:01,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:01:01,898 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:01:01,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:01:01,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:01:01,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:01:01,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:01:01,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:01:01,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:01:01,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:01:01,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:01:01,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:01:01,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:01:01,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:01:01,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:01:01,901 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:01:01,902 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:01:02,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:01:02,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:01:02,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:01:02,390 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:01:02,390 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:01:02,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c [2020-10-27 23:01:02,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c8108ea2/b7a8eee9c7044e34a6e73bf5ad327a93/FLAG61adf9990 [2020-10-27 23:01:03,355 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:01:03,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c [2020-10-27 23:01:03,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c8108ea2/b7a8eee9c7044e34a6e73bf5ad327a93/FLAG61adf9990 [2020-10-27 23:01:03,627 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c8108ea2/b7a8eee9c7044e34a6e73bf5ad327a93 [2020-10-27 23:01:03,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:01:03,637 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:01:03,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:01:03,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:01:03,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:01:03,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:01:03" (1/1) ... [2020-10-27 23:01:03,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d2cb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:01:03, skipping insertion in model container [2020-10-27 23:01:03,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:01:03" (1/1) ... [2020-10-27 23:01:03,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:01:03,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:01:04,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:01:04,021 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:01:04,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:01:04,157 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:01:04,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:01:04 WrapperNode [2020-10-27 23:01:04,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:01:04,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:01:04,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:01:04,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:01:04,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:01:04" (1/1) ... [2020-10-27 23:01:04,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:01:04" (1/1) ... [2020-10-27 23:01:04,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:01:04" (1/1) ... [2020-10-27 23:01:04,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:01:04" (1/1) ... [2020-10-27 23:01:04,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:01:04" (1/1) ... [2020-10-27 23:01:04,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:01:04" (1/1) ... [2020-10-27 23:01:04,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:01:04" (1/1) ... [2020-10-27 23:01:04,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:01:04,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:01:04,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:01:04,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:01:04,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:01:04" (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 23:01:04,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:01:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:01:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:01:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:01:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 23:01:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 23:01:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 23:01:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 23:01:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 23:01:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-27 23:01:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2020-10-27 23:01:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure node8 [2020-10-27 23:01:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:01:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:01:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:01:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:01:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:01:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:01:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:01:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:01:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:01:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:01:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 23:01:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:01:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:01:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:01:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:01:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 23:01:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 23:01:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 23:01:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 23:01:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 23:01:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-27 23:01:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2020-10-27 23:01:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure node8 [2020-10-27 23:01:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:01:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:01:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:01:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:01:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:01:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:01:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:01:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:01:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:01:05,359 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:01:05,359 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:01:05,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:01:05 BoogieIcfgContainer [2020-10-27 23:01:05,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:01:05,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:01:05,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:01:05,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:01:05,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:01:03" (1/3) ... [2020-10-27 23:01:05,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29dececc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:01:05, skipping insertion in model container [2020-10-27 23:01:05,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:01:04" (2/3) ... [2020-10-27 23:01:05,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29dececc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:01:05, skipping insertion in model container [2020-10-27 23:01:05,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:01:05" (3/3) ... [2020-10-27 23:01:05,374 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c [2020-10-27 23:01:05,389 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:01:05,395 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:01:05,410 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:01:05,459 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:01:05,459 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:01:05,459 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:01:05,460 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:01:05,460 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:01:05,460 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:01:05,460 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:01:05,460 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:01:05,493 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2020-10-27 23:01:05,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-27 23:01:05,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:01:05,521 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] [2020-10-27 23:01:05,522 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:01:05,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:01:05,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1487453024, now seen corresponding path program 1 times [2020-10-27 23:01:05,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:01:05,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014778799] [2020-10-27 23:01:05,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:01:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:06,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:06,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:06,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 23:01:06,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:06,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 636 [2020-10-27 23:01:06,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:06,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:06,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:01:06,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:06,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:01:07,022 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 23:01:07,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:01:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:07,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:07,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:07,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:01:07,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:07,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 23:01:07,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:07,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:07,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:07,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:07,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:07,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:01:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:07,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:07,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:07,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:01:07,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:07,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:01:07,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:07,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:07,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:07,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:07,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:07,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:01:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:07,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:07,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:07,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:01:07,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:07,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:01:07,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:07,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:07,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:01:07,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:07,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:07,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:01:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:07,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:07,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:07,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:07,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:07,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:01:07,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:07,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:07,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:07,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:07,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:07,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 23:01:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:07,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:07,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:07,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:07,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:07,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:01:07,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:07,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:07,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:07,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:07,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:07,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 23:01:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:07,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:07,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:07,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:07,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:07,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:01:07,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:07,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:07,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:07,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:07,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:07,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:01:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:07,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:07,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:07,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:07,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:07,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:01:07,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:07,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:07,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:07,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:07,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:07,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 23:01:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:07,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:07,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:07,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:07,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:07,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:01:07,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:07,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:07,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:07,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:07,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:07,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 23:01:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:07,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:07,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:07,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:07,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:07,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:01:07,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:07,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:07,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:07,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:07,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:07,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 23:01:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:07,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:07,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:07,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:07,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:07,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:01:07,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:07,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:07,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:07,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:07,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:07,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 23:01:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:07,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:07,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:07,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:07,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:07,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:01:07,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:07,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:07,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:07,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:07,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:07,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 23:01:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:07,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:07,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:07,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:01:07,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:07,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:01:07,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:01:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:07,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:07,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:01:07,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014778799] [2020-10-27 23:01:07,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:01:07,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:01:07,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778236415] [2020-10-27 23:01:07,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:01:07,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:01:07,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:01:07,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:01:07,527 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 11 states. [2020-10-27 23:01:08,212 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:08,479 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:08,744 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:09,025 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:09,323 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:09,594 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:09,851 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:10,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:01:10,016 INFO L93 Difference]: Finished difference Result 308 states and 467 transitions. [2020-10-27 23:01:10,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 23:01:10,018 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 89 [2020-10-27 23:01:10,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:01:10,029 INFO L225 Difference]: With dead ends: 308 [2020-10-27 23:01:10,029 INFO L226 Difference]: Without dead ends: 188 [2020-10-27 23:01:10,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:01:10,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-27 23:01:10,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-10-27 23:01:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-27 23:01:10,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 294 transitions. [2020-10-27 23:01:10,107 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 294 transitions. Word has length 89 [2020-10-27 23:01:10,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:01:10,107 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 294 transitions. [2020-10-27 23:01:10,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:01:10,108 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 294 transitions. [2020-10-27 23:01:10,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-27 23:01:10,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:01:10,113 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] [2020-10-27 23:01:10,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:01:10,113 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:01:10,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:01:10,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1920291426, now seen corresponding path program 1 times [2020-10-27 23:01:10,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:01:10,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080848190] [2020-10-27 23:01:10,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:01:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:10,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:11,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:11,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 23:01:11,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:11,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1039 [2020-10-27 23:01:11,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:11,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:01:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 23:01:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:01:11,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:11,650 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 23:01:11,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:01:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:11,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:11,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:11,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:01:11,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:11,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:01:11,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:11,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:11,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:11,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:11,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:11,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:01:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:11,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:11,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:11,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:01:11,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:11,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:01:11,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:11,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:01:11,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:11,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:01:11,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:11,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:01:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:11,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:11,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:11,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:01:11,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:11,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:01:11,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:11,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:01:11,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:01:11,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:01:11,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:11,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:01:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:11,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:11,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:11,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:11,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:11,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:01:11,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:11,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:11,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 23:01:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:11,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:11,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:11,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:11,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:11,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:01:11,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:11,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:11,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:11,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:11,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:11,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 23:01:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:11,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:11,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:11,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:11,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:11,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:01:11,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:11,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:11,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:11,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:01:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:11,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:11,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:11,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:11,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:11,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:01:11,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:11,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:12,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 23:01:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:12,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:12,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:12,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:12,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:12,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:01:12,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:12,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:12,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 23:01:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:12,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:12,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:12,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:12,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:12,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:01:12,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:12,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:12,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 23:01:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:12,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:12,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:12,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:12,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:12,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:01:12,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:12,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:12,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:12,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:12,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:12,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 23:01:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:12,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:12,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:12,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:12,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:12,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:01:12,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:12,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:12,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:12,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:12,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:12,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 23:01:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:12,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:12,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:12,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:01:12,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:12,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:01:12,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:01:12,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:12,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:12,252 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 23:01:12,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080848190] [2020-10-27 23:01:12,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:01:12,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-27 23:01:12,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646537549] [2020-10-27 23:01:12,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 23:01:12,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:01:12,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 23:01:12,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-10-27 23:01:12,257 INFO L87 Difference]: Start difference. First operand 188 states and 294 transitions. Second operand 17 states. [2020-10-27 23:01:12,720 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-27 23:01:13,157 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-27 23:01:13,717 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-27 23:01:14,160 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-27 23:01:15,243 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:01:15,526 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:15,799 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:16,092 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:16,380 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:16,660 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:16,924 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:17,195 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:17,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:01:17,536 INFO L93 Difference]: Finished difference Result 303 states and 455 transitions. [2020-10-27 23:01:17,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:01:17,537 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 89 [2020-10-27 23:01:17,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:01:17,542 INFO L225 Difference]: With dead ends: 303 [2020-10-27 23:01:17,542 INFO L226 Difference]: Without dead ends: 188 [2020-10-27 23:01:17,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2020-10-27 23:01:17,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-27 23:01:17,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-10-27 23:01:17,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-27 23:01:17,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 233 transitions. [2020-10-27 23:01:17,584 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 233 transitions. Word has length 89 [2020-10-27 23:01:17,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:01:17,585 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 233 transitions. [2020-10-27 23:01:17,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 23:01:17,585 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 233 transitions. [2020-10-27 23:01:17,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-27 23:01:17,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:01:17,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:01:17,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:01:17,593 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:01:17,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:01:17,593 INFO L82 PathProgramCache]: Analyzing trace with hash 207788110, now seen corresponding path program 1 times [2020-10-27 23:01:17,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:01:17,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500465464] [2020-10-27 23:01:17,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:01:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:17,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:17,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:18,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:18,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:21,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:22,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:22,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:22,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:22,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 23:01:22,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 23:01:22,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 23:01:22,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:22,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:01:22,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-27 23:01:22,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-27 23:01:22,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:01:23,087 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 23:01:23,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:01:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:23,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:23,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:23,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:01:23,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:23,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:01:23,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:23,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:23,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:23,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:23,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:23,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:01:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:23,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:23,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:23,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 23:01:23,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:23,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 23:01:23,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:23,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:23,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:23,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 23:01:23,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:23,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:01:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:23,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:23,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:23,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:01:23,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:23,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:01:23,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:23,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:01:23,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:23,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:01:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:23,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:23,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:23,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:23,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:23,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:01:23,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:23,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:23,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:23,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:23,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:23,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:01:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:23,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:23,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:23,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:23,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:23,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:01:23,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:23,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:23,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:23,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:23,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:23,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:01:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:23,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:23,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:23,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:23,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:23,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:01:23,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:23,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:23,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:23,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:23,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:23,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:01:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:23,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:23,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:23,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:23,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:23,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:01:23,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:23,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:23,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:23,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:23,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:23,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:01:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:23,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:23,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:23,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:23,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:23,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:01:23,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:23,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:23,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:23,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:23,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:23,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:01:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:23,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:23,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:23,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:23,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:23,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:01:23,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:23,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:23,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:23,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:23,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:23,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:01:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:23,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:23,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:23,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:23,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:23,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:01:23,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:23,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:23,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:23,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:23,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:23,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 23:01:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:23,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:23,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:23,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:23,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:23,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:01:23,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:23,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:01:23,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:01:23,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:01:23,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:23,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 23:01:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:23,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:23,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:23,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:01:23,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:23,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:01:23,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:23,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:23,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:01:23,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:23,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:23,640 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 23:01:23,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500465464] [2020-10-27 23:01:23,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:01:23,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:01:23,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785391894] [2020-10-27 23:01:23,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:01:23,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:01:23,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:01:23,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:01:23,645 INFO L87 Difference]: Start difference. First operand 188 states and 233 transitions. Second operand 14 states. [2020-10-27 23:01:24,039 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-27 23:01:24,595 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 23:01:24,874 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:25,137 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:25,398 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:25,623 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:25,870 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:26,108 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:26,357 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:26,703 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:01:26,940 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:27,148 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:27,347 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:27,547 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:27,748 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:27,954 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:28,182 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:01:28,373 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:01:28,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:01:28,569 INFO L93 Difference]: Finished difference Result 400 states and 533 transitions. [2020-10-27 23:01:28,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 23:01:28,571 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 149 [2020-10-27 23:01:28,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:01:28,580 INFO L225 Difference]: With dead ends: 400 [2020-10-27 23:01:28,581 INFO L226 Difference]: Without dead ends: 291 [2020-10-27 23:01:28,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2020-10-27 23:01:28,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-10-27 23:01:28,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 288. [2020-10-27 23:01:28,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-10-27 23:01:28,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 375 transitions. [2020-10-27 23:01:28,678 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 375 transitions. Word has length 149 [2020-10-27 23:01:28,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:01:28,681 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 375 transitions. [2020-10-27 23:01:28,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:01:28,682 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 375 transitions. [2020-10-27 23:01:28,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-27 23:01:28,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:01:28,695 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:01:28,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:01:28,695 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:01:28,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:01:28,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1970396776, now seen corresponding path program 1 times [2020-10-27 23:01:28,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:01:28,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967780226] [2020-10-27 23:01:28,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:01:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:28,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:28,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:29,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:29,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:31,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:31,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:33,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:33,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 23:01:33,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 23:01:33,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-27 23:01:33,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:01:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-27 23:01:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-27 23:01:33,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:34,119 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 23:01:34,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:01:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:34,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:34,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:34,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:01:34,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:34,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:01:34,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:34,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:34,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:34,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:34,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:34,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:01:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:34,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:34,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:34,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 23:01:34,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:34,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 23:01:34,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:34,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:34,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:34,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 23:01:34,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:34,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:01:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:34,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:34,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:34,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:01:34,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:34,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:01:34,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:34,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:34,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:34,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:01:34,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:34,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:01:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:34,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:34,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:34,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:34,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:34,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:01:34,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:34,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:34,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:01:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:34,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:34,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:34,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:34,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:34,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:01:34,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:34,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:34,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:34,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:34,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:34,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:01:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:34,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:34,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:34,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:34,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:34,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:01:34,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:34,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:34,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:34,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:34,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:34,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:01:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:34,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:34,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:34,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:34,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:34,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:01:34,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:34,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:34,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:34,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:34,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:34,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:01:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:34,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:34,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:34,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:34,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:34,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:01:34,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:34,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:34,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:34,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:34,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:34,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:01:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:34,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:34,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:34,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:34,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:34,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:01:34,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:34,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:34,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:34,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:34,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:34,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:01:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:34,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:34,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:34,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:34,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:34,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:01:34,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:34,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:01:34,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:01:34,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:01:34,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:34,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 23:01:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:34,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:34,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:34,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:34,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:34,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:01:34,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:34,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:34,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:34,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:34,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:34,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 23:01:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:34,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:34,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:34,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:01:34,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:34,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:01:34,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:34,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:34,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:01:34,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:34,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:34,750 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 23:01:34,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967780226] [2020-10-27 23:01:34,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:01:34,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:01:34,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393555530] [2020-10-27 23:01:34,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:01:34,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:01:34,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:01:34,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:01:34,753 INFO L87 Difference]: Start difference. First operand 288 states and 375 transitions. Second operand 14 states. [2020-10-27 23:01:35,162 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-27 23:01:35,743 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 23:01:36,006 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:36,288 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:36,523 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:36,757 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:37,004 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:37,237 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:37,419 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:37,762 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:01:37,973 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:38,178 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:38,381 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:38,596 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:38,805 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:39,047 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:01:39,219 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:01:39,431 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:39,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:01:39,702 INFO L93 Difference]: Finished difference Result 694 states and 951 transitions. [2020-10-27 23:01:39,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 23:01:39,703 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 149 [2020-10-27 23:01:39,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:01:39,707 INFO L225 Difference]: With dead ends: 694 [2020-10-27 23:01:39,707 INFO L226 Difference]: Without dead ends: 485 [2020-10-27 23:01:39,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=261, Invalid=731, Unknown=0, NotChecked=0, Total=992 [2020-10-27 23:01:39,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-10-27 23:01:39,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 482. [2020-10-27 23:01:39,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-10-27 23:01:39,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 649 transitions. [2020-10-27 23:01:39,767 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 649 transitions. Word has length 149 [2020-10-27 23:01:39,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:01:39,767 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 649 transitions. [2020-10-27 23:01:39,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:01:39,768 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 649 transitions. [2020-10-27 23:01:39,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-27 23:01:39,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:01:39,770 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:01:39,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:01:39,770 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:01:39,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:01:39,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1578987790, now seen corresponding path program 1 times [2020-10-27 23:01:39,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:01:39,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330974092] [2020-10-27 23:01:39,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:01:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:39,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:39,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:40,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:40,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:42,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:44,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:44,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 23:01:44,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:01:44,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 23:01:44,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:01:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-27 23:01:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-27 23:01:44,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:45,276 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 23:01:45,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:01:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:45,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:45,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:45,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:01:45,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:45,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:01:45,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:45,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:45,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:45,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:45,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:45,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:01:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:45,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:45,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:45,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 23:01:45,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:45,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 23:01:45,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:45,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:45,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:45,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 23:01:45,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:01:45,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:01:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:45,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:45,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:45,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:01:45,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:45,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:01:45,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:45,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:45,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:45,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:01:45,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:45,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:01:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:45,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:45,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:45,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:45,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:45,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:01:45,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:45,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:45,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:45,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:45,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:45,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:01:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:45,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:45,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:45,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:45,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:45,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:01:45,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:45,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:45,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:45,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:45,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:01:45,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:01:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:45,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:45,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:45,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:45,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:45,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:01:45,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:45,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:45,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:45,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:45,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:45,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:01:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:45,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:45,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:45,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:45,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:45,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:01:45,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:45,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:45,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:45,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:45,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:45,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:01:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:45,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:45,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:45,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:45,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:45,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:01:45,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:45,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:45,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:45,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:45,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:45,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:01:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:45,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:45,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:45,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:45,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:45,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:01:45,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:45,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:01:45,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:01:45,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:01:45,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:45,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:01:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:45,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:45,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:45,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:45,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:45,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:01:45,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:45,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:45,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:45,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:45,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:45,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 23:01:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:45,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:45,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:45,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:45,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:45,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:01:45,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:45,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:45,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:45,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:45,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:45,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 23:01:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:45,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:45,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:45,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:01:45,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:45,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:01:45,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:01:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:45,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:45,904 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 23:01:45,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330974092] [2020-10-27 23:01:45,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:01:45,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:01:45,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734245925] [2020-10-27 23:01:45,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:01:45,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:01:45,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:01:45,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:01:45,907 INFO L87 Difference]: Start difference. First operand 482 states and 649 transitions. Second operand 14 states. [2020-10-27 23:01:46,295 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-27 23:01:46,864 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 23:01:47,108 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:47,375 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:47,626 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:47,876 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:48,132 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:48,330 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:48,512 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:48,852 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:01:49,058 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:49,290 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:49,500 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:49,704 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:49,945 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:01:50,118 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:01:50,320 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:50,577 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:50,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:01:50,871 INFO L93 Difference]: Finished difference Result 1264 states and 1757 transitions. [2020-10-27 23:01:50,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 23:01:50,871 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 149 [2020-10-27 23:01:50,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:01:50,878 INFO L225 Difference]: With dead ends: 1264 [2020-10-27 23:01:50,878 INFO L226 Difference]: Without dead ends: 861 [2020-10-27 23:01:50,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2020-10-27 23:01:50,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2020-10-27 23:01:50,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 858. [2020-10-27 23:01:50,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 858 states. [2020-10-27 23:01:50,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1177 transitions. [2020-10-27 23:01:50,978 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1177 transitions. Word has length 149 [2020-10-27 23:01:50,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:01:50,978 INFO L481 AbstractCegarLoop]: Abstraction has 858 states and 1177 transitions. [2020-10-27 23:01:50,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:01:50,978 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1177 transitions. [2020-10-27 23:01:50,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-27 23:01:50,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:01:50,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:01:50,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:01:50,981 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:01:50,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:01:50,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1705905960, now seen corresponding path program 1 times [2020-10-27 23:01:50,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:01:50,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008700034] [2020-10-27 23:01:50,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:01:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:51,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:51,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:51,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:52,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:56,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:56,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 23:01:56,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:01:56,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-27 23:01:56,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:56,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:01:56,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-27 23:01:56,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 23:01:56,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:56,465 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 23:01:56,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:01:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:56,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:56,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:56,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:01:56,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:56,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:01:56,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:56,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:56,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:56,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:56,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:56,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:01:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:56,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:56,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:56,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 23:01:56,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:56,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:01:56,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 23:01:56,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:56,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:01:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:56,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:56,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:56,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:01:56,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:56,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:01:56,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:56,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:56,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:56,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:01:56,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:56,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:01:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:56,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:56,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:56,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:56,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:56,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:01:56,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:56,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:56,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:56,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:56,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:56,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:01:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:56,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:56,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:56,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:56,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:56,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:01:56,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:56,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:56,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:56,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:01:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:56,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:56,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:56,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:56,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:56,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:01:56,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:56,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:56,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:01:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:56,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:56,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:56,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:56,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:56,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:01:56,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:56,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:01:56,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:01:56,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:01:56,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:56,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:01:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:56,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:56,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:56,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:56,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:56,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:01:56,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:56,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:01:56,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:01:56,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:01:56,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:56,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:01:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:56,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:56,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:56,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:56,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:56,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:01:56,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:56,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:56,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:56,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:56,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:56,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:01:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:56,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:56,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:56,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:56,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:56,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:01:56,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:56,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:56,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:56,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:56,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:56,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 23:01:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:56,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:56,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:56,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:01:56,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:56,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:01:56,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:56,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:56,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:01:56,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:56,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:56,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 23:01:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:01:56,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:01:56,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:01:56,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:01:56,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:01:56,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:01:56,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:01:56,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:01:56,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:01:56,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:01:56,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:01:56,947 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 23:01:56,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008700034] [2020-10-27 23:01:56,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:01:56,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:01:56,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524943999] [2020-10-27 23:01:56,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:01:56,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:01:56,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:01:56,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:01:56,949 INFO L87 Difference]: Start difference. First operand 858 states and 1177 transitions. Second operand 14 states. [2020-10-27 23:01:57,354 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-27 23:01:57,923 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 23:01:58,165 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:58,429 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:58,661 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:01:58,901 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:59,092 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:59,280 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:59,476 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:01:59,832 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:02:00,035 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:00,239 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:00,461 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:00,699 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:02:00,869 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:02:01,085 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:01,362 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:01,656 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:02,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:02:02,032 INFO L93 Difference]: Finished difference Result 2368 states and 3309 transitions. [2020-10-27 23:02:02,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 23:02:02,035 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 149 [2020-10-27 23:02:02,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:02:02,052 INFO L225 Difference]: With dead ends: 2368 [2020-10-27 23:02:02,052 INFO L226 Difference]: Without dead ends: 1589 [2020-10-27 23:02:02,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2020-10-27 23:02:02,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2020-10-27 23:02:02,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1586. [2020-10-27 23:02:02,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1586 states. [2020-10-27 23:02:02,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2193 transitions. [2020-10-27 23:02:02,269 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2193 transitions. Word has length 149 [2020-10-27 23:02:02,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:02:02,270 INFO L481 AbstractCegarLoop]: Abstraction has 1586 states and 2193 transitions. [2020-10-27 23:02:02,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:02:02,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2193 transitions. [2020-10-27 23:02:02,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-27 23:02:02,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:02:02,272 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:02:02,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:02:02,272 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:02:02,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:02:02,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1467090482, now seen corresponding path program 1 times [2020-10-27 23:02:02,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:02:02,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1216701920] [2020-10-27 23:02:02,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:02:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:02,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:02,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:02,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:07,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:07,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 23:02:07,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:02:07,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-27 23:02:07,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:07,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:02:07,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 23:02:07,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 23:02:07,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:07,704 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 23:02:07,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:02:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:07,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:07,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:07,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:02:07,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:07,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:02:07,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:07,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:07,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:02:07,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:07,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:07,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:02:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:07,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:07,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:07,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 23:02:07,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:07,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 23:02:07,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:07,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:02:07,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:02:07,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 23:02:07,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:07,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:02:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:07,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:07,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:07,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:02:07,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:07,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:02:07,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:02:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:02:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:02:07,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:07,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:02:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:07,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:07,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:07,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:07,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:07,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:02:07,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:02:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:02:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:02:07,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:07,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:02:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:07,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:07,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:07,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:07,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:07,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:02:07,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:07,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:02:07,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:02:07,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:02:07,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:07,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:02:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:07,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:07,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:07,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:07,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:07,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:02:07,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:07,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:02:07,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:02:07,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:02:07,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:07,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:02:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:07,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:07,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:07,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:07,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:07,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:02:07,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:07,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:02:07,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:02:07,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:02:07,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:08,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:02:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:08,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:08,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:08,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:08,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:08,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:02:08,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:08,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:08,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:02:08,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:08,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:08,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:02:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:08,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:08,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:08,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:08,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:08,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:02:08,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:08,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:08,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:02:08,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:08,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:08,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:02:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:08,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:08,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:08,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:08,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:08,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:02:08,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:08,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:08,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:02:08,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:08,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:08,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 23:02:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:08,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:08,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:08,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:08,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:08,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:02:08,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:08,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:08,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:02:08,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:08,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:08,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 23:02:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:08,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:08,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:08,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:02:08,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:08,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:02:08,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:08,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:08,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:02:08,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:08,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:08,197 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 23:02:08,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1216701920] [2020-10-27 23:02:08,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:02:08,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:02:08,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254672469] [2020-10-27 23:02:08,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:02:08,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:02:08,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:02:08,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:02:08,199 INFO L87 Difference]: Start difference. First operand 1586 states and 2193 transitions. Second operand 14 states. [2020-10-27 23:02:08,632 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-27 23:02:09,186 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 23:02:09,453 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:09,709 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:09,963 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:10,156 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:10,344 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:10,543 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:10,730 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:11,058 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:02:11,270 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:11,502 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:11,754 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:02:11,938 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:02:12,154 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:12,435 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:12,716 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:12,991 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:13,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:02:13,464 INFO L93 Difference]: Finished difference Result 4504 states and 6293 transitions. [2020-10-27 23:02:13,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 23:02:13,465 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 149 [2020-10-27 23:02:13,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:02:13,483 INFO L225 Difference]: With dead ends: 4504 [2020-10-27 23:02:13,484 INFO L226 Difference]: Without dead ends: 2997 [2020-10-27 23:02:13,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=261, Invalid=731, Unknown=0, NotChecked=0, Total=992 [2020-10-27 23:02:13,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2020-10-27 23:02:13,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2994. [2020-10-27 23:02:13,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2994 states. [2020-10-27 23:02:13,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2994 states to 2994 states and 4145 transitions. [2020-10-27 23:02:13,874 INFO L78 Accepts]: Start accepts. Automaton has 2994 states and 4145 transitions. Word has length 149 [2020-10-27 23:02:13,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:02:13,875 INFO L481 AbstractCegarLoop]: Abstraction has 2994 states and 4145 transitions. [2020-10-27 23:02:13,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:02:13,875 INFO L276 IsEmpty]: Start isEmpty. Operand 2994 states and 4145 transitions. [2020-10-27 23:02:13,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-27 23:02:13,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:02:13,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:02:13,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:02:13,877 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:02:13,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:02:13,878 INFO L82 PathProgramCache]: Analyzing trace with hash 983175192, now seen corresponding path program 1 times [2020-10-27 23:02:13,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:02:13,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83739152] [2020-10-27 23:02:13,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:02:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:13,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:14,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:17,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:17,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 23:02:17,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:02:17,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3375 [2020-10-27 23:02:17,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:02:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-27 23:02:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-27 23:02:17,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:17,678 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 23:02:17,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:02:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:17,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:17,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:17,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:02:17,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:17,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:02:17,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:17,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:17,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:02:17,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:17,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:17,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:02:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:17,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:17,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:17,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 23:02:17,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:17,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:02:17,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:17,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:02:17,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:02:17,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:02:17,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:17,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:02:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:17,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:17,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:17,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:02:17,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:17,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:02:17,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:17,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:02:17,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:02:17,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:02:17,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:17,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:02:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:17,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:17,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:17,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:17,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:17,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:02:17,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:17,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:02:17,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:02:17,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:02:17,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:17,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:02:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:17,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:17,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:17,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:17,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:17,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:02:17,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:02:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:17,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:17,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:02:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:17,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:17,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:17,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:17,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:17,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:02:17,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:17,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:17,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:02:17,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:17,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:17,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:02:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:17,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:17,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:17,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:17,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:17,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:02:17,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:02:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:17,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:17,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:02:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:17,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:17,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:17,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:17,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:17,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:02:17,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:17,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:17,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:02:17,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:17,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:17,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:02:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:17,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:18,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:18,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:18,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:18,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:02:18,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:18,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:18,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:02:18,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:18,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:18,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:02:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:18,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:18,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:18,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:18,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:18,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:02:18,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:18,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:18,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:02:18,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:18,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:18,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 23:02:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:18,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:18,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:18,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:18,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:18,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:02:18,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:02:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:18,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:18,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 23:02:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:18,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:18,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:18,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:02:18,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:18,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:02:18,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:18,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:18,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:02:18,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:18,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:18,121 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 23:02:18,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83739152] [2020-10-27 23:02:18,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:02:18,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:02:18,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053925816] [2020-10-27 23:02:18,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:02:18,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:02:18,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:02:18,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:02:18,123 INFO L87 Difference]: Start difference. First operand 2994 states and 4145 transitions. Second operand 14 states. [2020-10-27 23:02:18,564 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-27 23:02:19,123 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:02:19,305 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:19,556 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:19,810 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:20,001 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:20,188 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:20,380 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:20,564 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:20,926 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:02:21,096 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:02:21,314 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:21,561 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:21,812 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:22,130 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:22,424 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:22,727 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:23,014 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:23,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:02:23,658 INFO L93 Difference]: Finished difference Result 8632 states and 12021 transitions. [2020-10-27 23:02:23,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 23:02:23,659 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 149 [2020-10-27 23:02:23,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:02:23,692 INFO L225 Difference]: With dead ends: 8632 [2020-10-27 23:02:23,692 INFO L226 Difference]: Without dead ends: 5717 [2020-10-27 23:02:23,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2020-10-27 23:02:23,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5717 states. [2020-10-27 23:02:24,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5717 to 5714. [2020-10-27 23:02:24,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5714 states. [2020-10-27 23:02:24,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5714 states to 5714 states and 7889 transitions. [2020-10-27 23:02:24,371 INFO L78 Accepts]: Start accepts. Automaton has 5714 states and 7889 transitions. Word has length 149 [2020-10-27 23:02:24,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:02:24,371 INFO L481 AbstractCegarLoop]: Abstraction has 5714 states and 7889 transitions. [2020-10-27 23:02:24,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:02:24,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5714 states and 7889 transitions. [2020-10-27 23:02:24,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-27 23:02:24,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:02:24,374 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:02:24,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:02:24,374 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:02:24,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:02:24,375 INFO L82 PathProgramCache]: Analyzing trace with hash 146779150, now seen corresponding path program 1 times [2020-10-27 23:02:24,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:02:24,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871741080] [2020-10-27 23:02:24,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:02:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:24,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:26,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:26,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 23:02:26,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:26,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1828 [2020-10-27 23:02:26,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:26,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 23:02:26,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 23:02:26,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-27 23:02:26,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:26,760 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 23:02:26,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:02:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:26,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:26,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:26,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:02:26,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:26,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:02:26,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:02:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:02:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:02:26,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:26,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:02:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:26,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:26,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:26,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 23:02:26,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:26,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 23:02:26,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 23:02:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:02:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 23:02:26,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:27,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:02:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:27,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:27,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:27,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:02:27,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:27,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:02:27,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:02:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:02:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:02:27,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:27,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:02:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:27,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:27,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:27,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:27,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:27,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:02:27,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:27,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:02:27,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:02:27,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:02:27,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:27,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:02:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:27,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:27,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:27,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:27,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:27,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 23:02:27,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:02:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:02:27,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:02:27,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:27,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:02:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:27,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:27,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:27,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:27,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:27,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:02:27,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:02:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:02:27,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:02:27,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:27,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:02:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:27,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:27,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:27,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:27,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:27,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 23:02:27,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:27,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:02:27,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:02:27,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:02:27,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:27,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:02:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:27,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:27,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:27,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:27,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:27,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:02:27,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:27,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:02:27,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:02:27,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:02:27,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:27,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:02:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:27,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:27,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:27,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:27,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:27,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:02:27,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:27,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:02:27,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:02:27,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:02:27,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:27,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:02:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:27,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:27,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:27,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:27,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:27,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 23:02:27,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:27,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:02:27,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:02:27,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:02:27,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:27,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 23:02:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:27,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:27,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:27,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:02:27,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:27,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:02:27,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:27,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:02:27,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:02:27,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:02:27,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:27,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 23:02:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:02:27,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:02:27,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:02:27,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:02:27,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:02:27,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:02:27,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:02:27,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:02:27,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:02:27,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:02:27,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:02:28,038 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 23:02:28,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871741080] [2020-10-27 23:02:28,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:02:28,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2020-10-27 23:02:28,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651084400] [2020-10-27 23:02:28,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-27 23:02:28,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:02:28,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-27 23:02:28,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=741, Unknown=0, NotChecked=0, Total=870 [2020-10-27 23:02:28,041 INFO L87 Difference]: Start difference. First operand 5714 states and 7889 transitions. Second operand 30 states. [2020-10-27 23:02:28,584 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-27 23:02:29,039 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-27 23:02:29,489 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-27 23:02:29,942 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-27 23:02:30,412 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-27 23:02:30,887 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-27 23:02:31,409 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-27 23:02:31,910 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-27 23:02:32,441 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 23:02:32,711 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:02:32,929 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 23:02:33,251 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:02:33,475 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 23:02:33,645 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 23:02:33,903 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 23:02:34,231 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:02:34,465 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:34,621 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 23:02:34,932 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:02:35,201 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:02:35,362 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 23:02:35,679 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:02:35,911 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:36,070 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 23:02:36,384 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:02:36,636 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:02:36,801 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 23:02:37,121 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:02:37,351 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:37,517 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 23:02:38,121 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-27 23:02:38,545 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-27 23:02:39,505 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:39,690 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 23:02:39,966 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 23:02:40,146 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:40,304 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:02:40,489 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-27 23:02:41,024 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:02:41,428 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-27 23:02:41,620 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:02:41,842 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 23:02:42,057 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:42,236 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:42,431 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 23:02:42,666 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:42,973 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:43,390 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:02:43,587 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:02:43,816 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 23:02:44,029 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:44,217 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:44,570 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:44,968 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:02:45,170 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:02:45,451 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 23:02:45,668 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:45,868 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:46,073 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 23:02:46,271 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 23:02:46,599 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:47,029 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:02:47,239 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:02:47,546 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:02:47,744 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:47,969 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:02:48,168 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 23:02:48,377 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 23:02:48,561 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 23:02:48,869 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:49,034 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:49,558 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:02:49,744 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:02:50,084 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:02:50,302 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 23:02:50,479 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 23:02:50,683 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:50,882 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:51,099 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 23:02:51,284 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 23:02:51,616 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 23:02:51,794 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:51,949 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:52,543 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:02:52,750 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:02:53,077 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:02:53,291 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:02:53,470 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:02:53,693 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:53,904 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:02:54,107 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 23:02:54,357 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 23:02:54,537 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 23:02:54,895 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:55,080 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 23:02:55,258 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:55,419 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:02:56,239 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:02:56,434 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:02:56,880 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:02:57,078 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:02:57,278 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:02:57,469 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 23:02:57,651 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 23:02:57,854 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:58,070 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:02:58,322 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 23:02:58,500 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 23:02:58,867 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 23:02:59,096 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:02:59,276 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 23:02:59,462 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:02:59,622 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:03:01,033 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-27 23:03:01,494 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-27 23:03:01,940 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-10-27 23:03:02,373 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-27 23:03:02,854 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-27 23:03:06,182 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:03:06,385 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:03:06,658 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 23:03:06,850 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:03:07,042 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 23:03:07,393 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:03:07,593 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:03:07,794 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-27 23:03:07,991 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:03:08,194 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 23:03:08,386 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 23:03:08,893 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-27 23:03:09,842 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:03:10,061 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:03:10,284 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:03:10,501 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:03:10,727 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:03:11,165 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:03:11,382 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:03:11,600 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:03:11,828 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:03:12,107 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 23:03:13,255 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:03:13,489 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:03:13,731 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:03:13,955 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:03:14,187 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:03:14,763 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:03:15,006 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:03:15,252 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:03:15,498 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:03:15,717 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 23:03:15,917 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 23:03:17,235 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:03:17,561 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:03:17,791 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:03:18,020 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:03:18,416 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:03:18,652 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:03:18,882 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:03:19,109 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:03:19,329 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:03:19,579 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:03:20,043 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 23:03:21,033 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:03:21,256 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:03:21,480 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:03:21,720 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:03:22,151 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:03:22,376 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:03:22,593 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-27 23:03:22,819 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-27 23:03:23,071 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:03:23,527 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:03:24,503 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:03:24,733 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:03:24,958 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:03:25,196 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:03:25,643 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:03:25,870 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:03:26,098 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:03:26,383 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:03:26,791 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:03:28,034 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:03:28,276 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:03:28,531 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:03:28,794 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:03:29,286 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:03:29,516 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:03:29,817 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:03:30,195 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:03:31,270 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:03:31,503 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:03:31,740 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:03:31,982 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 23:03:32,437 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:03:32,819 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:03:51,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:03:51,037 INFO L93 Difference]: Finished difference Result 127557 states and 203635 transitions. [2020-10-27 23:03:51,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 242 states. [2020-10-27 23:03:51,037 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 149 [2020-10-27 23:03:51,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:03:52,203 INFO L225 Difference]: With dead ends: 127557 [2020-10-27 23:03:52,203 INFO L226 Difference]: Without dead ends: 121922 [2020-10-27 23:03:52,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27251 ImplicationChecksByTransitivity, 43.4s TimeCoverageRelationStatistics Valid=10262, Invalid=56044, Unknown=0, NotChecked=0, Total=66306 [2020-10-27 23:03:52,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121922 states. [2020-10-27 23:04:03,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121922 to 98578. [2020-10-27 23:04:03,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98578 states. [2020-10-27 23:04:04,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98578 states to 98578 states and 137233 transitions. [2020-10-27 23:04:04,140 INFO L78 Accepts]: Start accepts. Automaton has 98578 states and 137233 transitions. Word has length 149 [2020-10-27 23:04:04,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:04:04,141 INFO L481 AbstractCegarLoop]: Abstraction has 98578 states and 137233 transitions. [2020-10-27 23:04:04,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-27 23:04:04,141 INFO L276 IsEmpty]: Start isEmpty. Operand 98578 states and 137233 transitions. [2020-10-27 23:04:04,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-27 23:04:04,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:04:04,144 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:04:04,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 23:04:04,144 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:04:04,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:04:04,145 INFO L82 PathProgramCache]: Analyzing trace with hash -2136500706, now seen corresponding path program 1 times [2020-10-27 23:04:04,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:04:04,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652757443] [2020-10-27 23:04:04,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:04:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:04,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:04,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:04,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:05,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:05,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-27 23:04:05,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:04:05,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1565 [2020-10-27 23:04:05,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:04:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-10-27 23:04:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:04:05,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:06,228 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 23:04:06,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:04:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:06,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:06,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:06,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:04:06,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:06,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 23:04:06,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:06,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:06,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:06,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:06,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:06,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:04:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:06,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:06,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:06,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 23:04:06,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:06,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:04:06,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:06,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:06,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:06,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:06,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:06,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:04:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:06,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:06,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:06,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:04:06,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:06,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:04:06,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:06,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:06,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:06,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:06,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:06,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:04:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:06,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:06,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:06,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:06,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:06,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:04:06,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:06,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:06,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:06,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:06,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:06,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:04:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:06,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:06,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:06,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:06,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:06,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:04:06,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:06,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:06,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:06,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:06,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:06,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 23:04:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:06,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:06,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:06,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:06,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:06,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:04:06,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:06,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:06,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:06,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:06,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:06,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 23:04:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:06,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:06,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:06,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:06,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:06,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:04:06,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:06,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:06,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:06,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:06,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:06,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:04:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:06,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:06,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:06,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:06,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:06,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:04:06,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:06,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:06,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:06,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:06,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:06,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 23:04:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:06,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:06,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:06,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:06,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:06,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:04:06,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:06,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:06,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:06,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:06,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:06,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:04:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:06,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:06,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:06,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:06,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:06,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:04:06,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:06,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:06,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:06,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:06,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:06,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 23:04:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:06,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:06,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:06,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:06,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:06,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:04:06,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:06,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:06,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:06,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:06,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:06,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 23:04:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:06,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:06,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:06,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:06,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:06,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:04:06,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:04:06,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:06,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:04:06,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:04:06,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 23:04:06,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:06,684 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 23:04:06,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652757443] [2020-10-27 23:04:06,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:04:06,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-27 23:04:06,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969270500] [2020-10-27 23:04:06,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 23:04:06,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:04:06,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 23:04:06,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-27 23:04:06,687 INFO L87 Difference]: Start difference. First operand 98578 states and 137233 transitions. Second operand 16 states. [2020-10-27 23:04:07,645 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:04:07,883 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:04:08,222 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:04:08,580 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:04:08,824 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:04:09,075 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:04:09,324 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:04:09,561 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 23:04:10,047 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-27 23:04:10,592 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-27 23:04:10,850 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:04:11,156 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:04:11,597 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:04:11,983 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:04:12,379 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:04:12,818 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:04:13,297 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-27 23:04:23,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:04:23,370 INFO L93 Difference]: Finished difference Result 249144 states and 347557 transitions. [2020-10-27 23:04:23,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 23:04:23,371 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 151 [2020-10-27 23:04:23,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:04:24,408 INFO L225 Difference]: With dead ends: 249144 [2020-10-27 23:04:24,408 INFO L226 Difference]: Without dead ends: 150645 [2020-10-27 23:04:24,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=233, Invalid=823, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 23:04:24,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150645 states.