/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_opt-floodmax.3.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:10:29,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:10:29,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:10:29,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:10:29,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:10:29,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:10:29,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:10:29,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:10:29,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:10:29,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:10:29,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:10:29,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:10:29,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:10:29,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:10:29,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:10:29,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:10:29,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:10:29,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:10:29,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:10:29,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:10:29,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:10:29,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:10:29,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:10:29,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:10:29,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:10:29,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:10:29,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:10:29,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:10:29,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:10:29,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:10:29,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:10:29,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:10:29,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:10:29,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:10:29,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:10:29,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:10:29,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:10:29,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:10:29,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:10:29,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:10:29,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:10:29,214 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 23:10:29,266 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:10:29,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:10:29,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:10:29,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:10:29,272 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:10:29,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:10:29,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:10:29,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:10:29,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:10:29,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:10:29,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:10:29,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:10:29,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:10:29,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:10:29,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:10:29,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:10:29,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:10:29,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:10:29,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:10:29,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:10:29,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:10:29,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:10:29,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:10:29,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:10:29,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:10:29,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:10:29,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:10:29,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:10:29,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:10:29,278 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:10:29,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:10:29,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:10:29,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:10:29,695 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:10:29,696 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:10:29,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-27 23:10:29,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/389e826ed/0364b76820514f189e1904202e3f9c4b/FLAGbac969a96 [2020-10-27 23:10:30,455 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:10:30,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-27 23:10:30,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/389e826ed/0364b76820514f189e1904202e3f9c4b/FLAGbac969a96 [2020-10-27 23:10:30,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/389e826ed/0364b76820514f189e1904202e3f9c4b [2020-10-27 23:10:30,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:10:30,805 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:10:30,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:10:30,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:10:30,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:10:30,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:10:30" (1/1) ... [2020-10-27 23:10:30,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d4d73b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:30, skipping insertion in model container [2020-10-27 23:10:30,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:10:30" (1/1) ... [2020-10-27 23:10:30,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:10:30,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:10:31,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:10:31,185 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:10:31,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:10:31,302 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:10:31,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:31 WrapperNode [2020-10-27 23:10:31,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:10:31,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:10:31,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:10:31,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:10:31,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:31" (1/1) ... [2020-10-27 23:10:31,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:31" (1/1) ... [2020-10-27 23:10:31,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:31" (1/1) ... [2020-10-27 23:10:31,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:31" (1/1) ... [2020-10-27 23:10:31,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:31" (1/1) ... [2020-10-27 23:10:31,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:31" (1/1) ... [2020-10-27 23:10:31,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:31" (1/1) ... [2020-10-27 23:10:31,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:10:31,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:10:31,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:10:31,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:10:31,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:31" (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 23:10:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:10:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:10:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:10:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:10:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 23:10:31,514 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 23:10:31,514 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 23:10:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:10:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:10:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:10:31,516 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:10:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:10:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:10:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:10:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:10:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:10:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:10:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:10:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:10:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:10:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:10:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 23:10:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 23:10:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 23:10:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:10:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:10:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:10:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:10:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:10:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:10:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:10:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:10:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:10:32,706 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:10:32,707 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:10:32,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:10:32 BoogieIcfgContainer [2020-10-27 23:10:32,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:10:32,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:10:32,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:10:32,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:10:32,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:10:30" (1/3) ... [2020-10-27 23:10:32,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@199bf479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:10:32, skipping insertion in model container [2020-10-27 23:10:32,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:10:31" (2/3) ... [2020-10-27 23:10:32,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@199bf479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:10:32, skipping insertion in model container [2020-10-27 23:10:32,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:10:32" (3/3) ... [2020-10-27 23:10:32,719 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c [2020-10-27 23:10:32,730 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:10:32,735 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:10:32,747 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:10:32,777 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:10:32,778 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:10:32,778 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:10:32,778 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:10:32,778 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:10:32,778 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:10:32,779 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:10:32,779 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:10:32,804 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-10-27 23:10:32,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 23:10:32,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:10:32,818 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] [2020-10-27 23:10:32,818 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:10:32,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:10:32,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1937700257, now seen corresponding path program 1 times [2020-10-27 23:10:32,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:10:32,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676489516] [2020-10-27 23:10:32,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:10:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:33,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:33,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:33,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 23:10:33,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:33,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 579 [2020-10-27 23:10:33,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:33,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:33,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-27 23:10:33,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:33,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 23:10:34,179 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:10:34,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:10:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:34,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:34,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:34,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:10:34,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:34,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 23:10:34,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:34,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:34,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:34,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:34,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:34,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:10:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:34,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:34,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:34,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:10:34,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:34,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 23:10:34,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:34,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:34,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:34,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 23:10:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:34,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:34,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:34,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:10:34,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:34,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:10:34,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:34,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:34,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:10:34,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:34,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:10:34,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 23:10:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:34,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:34,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:34,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:34,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:34,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:10:34,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:34,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:34,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:34,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 23:10:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:34,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:34,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:34,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:34,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:34,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:10:34,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:34,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:34,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:34,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:34,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:34,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 23:10:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:34,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:34,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:34,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:34,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:34,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:10:34,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:34,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:34,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:34,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:34,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:34,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:10:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:34,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:34,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:34,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:10:34,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:34,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:10:34,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:34,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:34,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:10:34,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:34,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:34,562 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 23:10:34,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676489516] [2020-10-27 23:10:34,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:10:34,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 23:10:34,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798380410] [2020-10-27 23:10:34,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 23:10:34,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:10:34,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 23:10:34,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-27 23:10:34,590 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 6 states. [2020-10-27 23:10:35,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:10:35,949 INFO L93 Difference]: Finished difference Result 299 states and 471 transitions. [2020-10-27 23:10:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 23:10:35,952 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-10-27 23:10:35,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:10:35,966 INFO L225 Difference]: With dead ends: 299 [2020-10-27 23:10:35,966 INFO L226 Difference]: Without dead ends: 185 [2020-10-27 23:10:35,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-27 23:10:35,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-27 23:10:36,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 170. [2020-10-27 23:10:36,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-27 23:10:36,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 272 transitions. [2020-10-27 23:10:36,057 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 272 transitions. Word has length 66 [2020-10-27 23:10:36,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:10:36,057 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 272 transitions. [2020-10-27 23:10:36,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 23:10:36,058 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 272 transitions. [2020-10-27 23:10:36,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 23:10:36,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:10:36,064 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] [2020-10-27 23:10:36,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:10:36,067 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:10:36,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:10:36,068 INFO L82 PathProgramCache]: Analyzing trace with hash 92333091, now seen corresponding path program 1 times [2020-10-27 23:10:36,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:10:36,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099491910] [2020-10-27 23:10:36,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:10:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:36,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:37,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:37,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 23:10:37,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:37,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 860 [2020-10-27 23:10:37,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:37,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:10:37,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-27 23:10:37,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:10:37,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:37,340 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:10:37,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:10:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:37,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:37,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:37,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:10:37,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:37,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 23:10:37,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:37,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:37,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:37,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:37,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:37,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:10:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:37,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:37,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:37,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:10:37,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:37,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-27 23:10:37,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:10:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:37,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:10:37,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:37,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 23:10:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:37,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:37,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:37,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:10:37,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:37,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:10:37,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:37,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:10:37,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:10:37,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:10:37,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:10:37,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 23:10:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:37,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:37,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:37,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:37,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:37,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:10:37,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:37,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:37,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:37,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:37,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 23:10:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:37,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:37,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:37,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:37,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:37,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:10:37,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:37,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:37,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:37,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:37,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:37,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 23:10:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:37,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:37,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:37,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:37,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:37,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:10:37,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:37,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:37,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:37,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:37,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:37,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:10:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:37,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:37,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:37,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:10:37,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:37,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:10:37,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:10:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:37,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:37,772 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 23:10:37,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099491910] [2020-10-27 23:10:37,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:10:37,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:10:37,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327584504] [2020-10-27 23:10:37,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:10:37,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:10:37,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:10:37,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:10:37,776 INFO L87 Difference]: Start difference. First operand 170 states and 272 transitions. Second operand 12 states. [2020-10-27 23:10:38,377 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:10:38,707 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:10:39,087 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:10:39,368 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:10:41,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:10:41,244 INFO L93 Difference]: Finished difference Result 298 states and 469 transitions. [2020-10-27 23:10:41,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 23:10:41,245 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 66 [2020-10-27 23:10:41,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:10:41,253 INFO L225 Difference]: With dead ends: 298 [2020-10-27 23:10:41,253 INFO L226 Difference]: Without dead ends: 194 [2020-10-27 23:10:41,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:10:41,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-27 23:10:41,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 170. [2020-10-27 23:10:41,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-27 23:10:41,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 242 transitions. [2020-10-27 23:10:41,312 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 242 transitions. Word has length 66 [2020-10-27 23:10:41,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:10:41,313 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 242 transitions. [2020-10-27 23:10:41,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:10:41,313 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 242 transitions. [2020-10-27 23:10:41,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-27 23:10:41,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:10:41,319 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] [2020-10-27 23:10:41,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:10:41,320 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:10:41,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:10:41,321 INFO L82 PathProgramCache]: Analyzing trace with hash -2007534636, now seen corresponding path program 1 times [2020-10-27 23:10:41,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:10:41,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911356357] [2020-10-27 23:10:41,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:10:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:41,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:41,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:41,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:43,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:46,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:46,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-27 23:10:46,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:10:46,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 23:10:46,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:46,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 23:10:46,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-27 23:10:46,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 23:10:46,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:10:46,721 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:10:46,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:10:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:46,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:46,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:46,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:10:46,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:46,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:10:46,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:46,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:46,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:46,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:46,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:46,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:10:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:46,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:46,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:46,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:10:46,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:46,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-27 23:10:46,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:46,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:10:46,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:46,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 23:10:46,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:46,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:10:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:46,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:46,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:46,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:10:46,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:46,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:10:46,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:46,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:10:46,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:46,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:10:46,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:46,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:10:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:46,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:46,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:46,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:46,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:46,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:10:46,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:46,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:10:46,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:10:46,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:10:46,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:10:47,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:10:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:47,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:47,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:47,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:47,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:47,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 23:10:47,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:47,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:10:47,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:10:47,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:10:47,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:47,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:10:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:47,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:47,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:47,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:47,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:47,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:10:47,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:47,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:10:47,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:10:47,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:10:47,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:47,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:10:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:47,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:47,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:47,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:10:47,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:47,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:10:47,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:47,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:10:47,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:10:47,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:10:47,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:47,203 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 23:10:47,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911356357] [2020-10-27 23:10:47,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:10:47,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:10:47,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24239687] [2020-10-27 23:10:47,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:10:47,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:10:47,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:10:47,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:10:47,207 INFO L87 Difference]: Start difference. First operand 170 states and 242 transitions. Second operand 13 states. [2020-10-27 23:10:47,475 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:10:48,108 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-27 23:10:48,385 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:10:50,582 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:10:50,827 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-27 23:10:51,115 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:10:54,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:10:54,994 INFO L93 Difference]: Finished difference Result 952 states and 1452 transitions. [2020-10-27 23:10:54,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-27 23:10:54,995 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 95 [2020-10-27 23:10:54,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:10:55,011 INFO L225 Difference]: With dead ends: 952 [2020-10-27 23:10:55,011 INFO L226 Difference]: Without dead ends: 854 [2020-10-27 23:10:55,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=567, Invalid=1883, Unknown=0, NotChecked=0, Total=2450 [2020-10-27 23:10:55,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2020-10-27 23:10:55,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 731. [2020-10-27 23:10:55,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2020-10-27 23:10:55,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1111 transitions. [2020-10-27 23:10:55,157 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1111 transitions. Word has length 95 [2020-10-27 23:10:55,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:10:55,158 INFO L481 AbstractCegarLoop]: Abstraction has 731 states and 1111 transitions. [2020-10-27 23:10:55,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:10:55,158 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1111 transitions. [2020-10-27 23:10:55,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-27 23:10:55,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:10:55,165 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] [2020-10-27 23:10:55,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:10:55,165 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:10:55,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:10:55,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1890593305, now seen corresponding path program 1 times [2020-10-27 23:10:55,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:10:55,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197978745] [2020-10-27 23:10:55,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:10:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:55,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:55,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:55,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:56,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:56,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:00,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:00,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 23:11:00,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:11:00,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 23:11:00,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:00,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 23:11:00,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-27 23:11:00,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 23:11:00,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:11:00,536 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:11:00,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:00,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:00,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:00,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:00,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:00,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:11:00,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:00,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:00,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:00,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:00,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:00,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:00,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:00,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:00,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:11:00,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:00,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-27 23:11:00,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:00,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:00,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:00,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 23:11:00,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:00,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:11:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:00,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:00,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:00,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:00,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:00,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:11:00,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:00,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:00,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:00,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:11:00,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:00,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:11:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:00,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:00,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:00,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:00,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:00,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:11:00,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:00,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:00,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:00,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:11:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:00,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:00,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:00,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:00,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:00,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:11:00,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:00,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:00,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:00,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:00,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:00,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:11:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:00,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:00,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:00,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:00,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:00,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:11:00,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:00,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:00,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:11:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:00,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:00,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:00,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:00,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:00,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:11:00,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:00,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:11:00,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:11:00,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:11:00,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:01,020 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 23:11:01,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197978745] [2020-10-27 23:11:01,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:01,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:11:01,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072262849] [2020-10-27 23:11:01,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:11:01,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:01,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:11:01,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:11:01,024 INFO L87 Difference]: Start difference. First operand 731 states and 1111 transitions. Second operand 14 states. [2020-10-27 23:11:01,335 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:11:02,006 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-27 23:11:02,280 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:11:02,548 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:11:04,787 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:11:05,036 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:11:05,338 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-27 23:11:05,596 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-27 23:11:09,109 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:11:09,373 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:11:11,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:11:11,947 INFO L93 Difference]: Finished difference Result 3331 states and 5214 transitions. [2020-10-27 23:11:11,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-27 23:11:11,948 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 96 [2020-10-27 23:11:11,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:11:11,967 INFO L225 Difference]: With dead ends: 3331 [2020-10-27 23:11:11,968 INFO L226 Difference]: Without dead ends: 2672 [2020-10-27 23:11:11,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1412 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=881, Invalid=3541, Unknown=0, NotChecked=0, Total=4422 [2020-10-27 23:11:11,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2020-10-27 23:11:12,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 1413. [2020-10-27 23:11:12,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1413 states. [2020-10-27 23:11:12,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 2181 transitions. [2020-10-27 23:11:12,157 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 2181 transitions. Word has length 96 [2020-10-27 23:11:12,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:11:12,158 INFO L481 AbstractCegarLoop]: Abstraction has 1413 states and 2181 transitions. [2020-10-27 23:11:12,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:11:12,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 2181 transitions. [2020-10-27 23:11:12,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-27 23:11:12,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:12,163 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] [2020-10-27 23:11:12,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:11:12,164 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:12,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:12,165 INFO L82 PathProgramCache]: Analyzing trace with hash 871242141, now seen corresponding path program 1 times [2020-10-27 23:11:12,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:12,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154548666] [2020-10-27 23:11:12,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:12,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:12,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:12,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:12,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:13,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:17,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:17,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-27 23:11:17,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:11:17,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 23:11:17,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:11:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-27 23:11:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 23:11:17,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:17,458 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:11:17,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:17,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:17,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:17,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:17,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:17,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:11:17,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:17,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:17,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:17,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:17,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:17,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:17,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:17,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:17,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:11:17,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:17,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-27 23:11:17,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:17,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:11:17,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:17,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 23:11:17,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:17,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:11:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:17,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:17,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:17,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:17,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:17,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:11:17,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:17,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:17,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:17,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:11:17,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:17,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:11:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:17,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:17,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:17,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:17,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:17,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:11:17,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:17,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:17,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:17,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:11:17,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:17,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:11:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:17,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:17,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:17,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:17,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:17,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:11:17,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:17,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:17,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:17,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:17,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:17,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:11:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:17,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:17,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:17,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:17,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:17,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:11:17,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:11:17,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:17,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:11:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:17,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:17,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:17,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:11:17,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:17,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:11:17,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:17,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:17,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 23:11:17,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:11:17,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:17,783 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 23:11:17,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154548666] [2020-10-27 23:11:17,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:17,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:11:17,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014236628] [2020-10-27 23:11:17,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:11:17,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:17,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:11:17,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:11:17,786 INFO L87 Difference]: Start difference. First operand 1413 states and 2181 transitions. Second operand 10 states. [2020-10-27 23:11:18,052 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:11:18,564 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-27 23:11:20,455 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:11:20,712 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-27 23:11:23,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:11:23,969 INFO L93 Difference]: Finished difference Result 5462 states and 8524 transitions. [2020-10-27 23:11:23,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 23:11:23,973 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 97 [2020-10-27 23:11:23,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:11:23,998 INFO L225 Difference]: With dead ends: 5462 [2020-10-27 23:11:23,998 INFO L226 Difference]: Without dead ends: 4148 [2020-10-27 23:11:24,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 23:11:24,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2020-10-27 23:11:24,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 3546. [2020-10-27 23:11:24,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3546 states. [2020-10-27 23:11:24,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3546 states to 3546 states and 5485 transitions. [2020-10-27 23:11:24,317 INFO L78 Accepts]: Start accepts. Automaton has 3546 states and 5485 transitions. Word has length 97 [2020-10-27 23:11:24,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:11:24,319 INFO L481 AbstractCegarLoop]: Abstraction has 3546 states and 5485 transitions. [2020-10-27 23:11:24,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:11:24,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3546 states and 5485 transitions. [2020-10-27 23:11:24,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 23:11:24,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:24,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:11:24,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:11:24,323 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:24,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:24,324 INFO L82 PathProgramCache]: Analyzing trace with hash 2028861378, now seen corresponding path program 1 times [2020-10-27 23:11:24,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:24,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352357415] [2020-10-27 23:11:24,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:24,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:24,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:24,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:25,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:26,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:29,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:29,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-27 23:11:29,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:11:29,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 23:11:29,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:11:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-27 23:11:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 23:11:29,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:29,682 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:11:29,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:29,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:29,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:29,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:29,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:29,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 23:11:29,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:29,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:29,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:29,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:29,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:29,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:29,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:29,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:29,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:11:29,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:29,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 23:11:29,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:29,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:11:29,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:29,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 23:11:29,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:29,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:11:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:29,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:29,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:29,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:29,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:29,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:11:29,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:29,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:29,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:29,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:11:29,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:29,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:11:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:29,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:29,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:29,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:29,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:29,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:11:29,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:11:29,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:30,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:11:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:30,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:30,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:30,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:30,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:30,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:11:30,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:30,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:30,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:30,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:11:30,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:30,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:11:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:30,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:30,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:30,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:30,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:30,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:11:30,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:30,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:30,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:30,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:30,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:30,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:11:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:30,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:30,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:30,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:11:30,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:30,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:11:30,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:30,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:30,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 23:11:30,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:11:30,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:30,145 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 23:11:30,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352357415] [2020-10-27 23:11:30,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:30,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:11:30,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236405032] [2020-10-27 23:11:30,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:11:30,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:30,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:11:30,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:11:30,152 INFO L87 Difference]: Start difference. First operand 3546 states and 5485 transitions. Second operand 10 states. [2020-10-27 23:11:30,388 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:11:30,905 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:11:32,450 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:11:32,762 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:11:36,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:11:36,662 INFO L93 Difference]: Finished difference Result 18724 states and 29207 transitions. [2020-10-27 23:11:36,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 23:11:36,663 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 98 [2020-10-27 23:11:36,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:11:36,759 INFO L225 Difference]: With dead ends: 18724 [2020-10-27 23:11:36,759 INFO L226 Difference]: Without dead ends: 15277 [2020-10-27 23:11:36,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 23:11:36,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15277 states. [2020-10-27 23:11:37,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15277 to 13001. [2020-10-27 23:11:37,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13001 states. [2020-10-27 23:11:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13001 states to 13001 states and 20150 transitions. [2020-10-27 23:11:37,876 INFO L78 Accepts]: Start accepts. Automaton has 13001 states and 20150 transitions. Word has length 98 [2020-10-27 23:11:37,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:11:37,876 INFO L481 AbstractCegarLoop]: Abstraction has 13001 states and 20150 transitions. [2020-10-27 23:11:37,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:11:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 13001 states and 20150 transitions. [2020-10-27 23:11:37,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-27 23:11:37,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:37,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:11:37,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:11:37,880 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:37,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:37,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1486226264, now seen corresponding path program 1 times [2020-10-27 23:11:37,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:37,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526391983] [2020-10-27 23:11:37,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:37,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:37,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:38,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:38,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:38,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:38,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:42,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:42,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 23:11:42,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 23:11:42,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 23:11:42,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:42,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-27 23:11:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 23:11:42,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:43,233 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:11:43,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:43,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:43,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:43,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:43,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:43,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:11:43,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:43,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:43,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:43,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:43,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:43,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:43,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:11:43,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:43,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 23:11:43,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:43,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:43,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:43,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 23:11:43,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:43,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:11:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:43,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:43,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:43,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:43,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:43,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:11:43,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:43,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:43,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:43,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:11:43,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:43,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:11:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:43,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:43,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:43,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 23:11:43,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:43,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 23:11:43,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 23:11:43,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:43,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:11:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:43,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:43,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:43,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:43,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:43,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:11:43,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:43,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:43,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:43,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:43,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:43,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:11:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:43,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:43,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:43,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:43,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:43,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:11:43,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:43,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:43,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:43,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:43,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:43,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:11:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:43,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:43,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:43,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:11:43,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:43,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:11:43,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:43,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:11:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:43,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:11:43,632 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 23:11:43,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526391983] [2020-10-27 23:11:43,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:43,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 23:11:43,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971735332] [2020-10-27 23:11:43,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 23:11:43,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:43,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 23:11:43,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-27 23:11:43,636 INFO L87 Difference]: Start difference. First operand 13001 states and 20150 transitions. Second operand 9 states. [2020-10-27 23:11:43,903 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:11:47,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:11:47,559 INFO L93 Difference]: Finished difference Result 38447 states and 59726 transitions. [2020-10-27 23:11:47,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 23:11:47,559 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-10-27 23:11:47,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:11:47,701 INFO L225 Difference]: With dead ends: 38447 [2020-10-27 23:11:47,701 INFO L226 Difference]: Without dead ends: 25532 [2020-10-27 23:11:47,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:11:47,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25532 states. [2020-10-27 23:11:49,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25532 to 22084. [2020-10-27 23:11:49,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22084 states. [2020-10-27 23:11:49,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22084 states to 22084 states and 33765 transitions. [2020-10-27 23:11:49,449 INFO L78 Accepts]: Start accepts. Automaton has 22084 states and 33765 transitions. Word has length 99 [2020-10-27 23:11:49,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:11:49,450 INFO L481 AbstractCegarLoop]: Abstraction has 22084 states and 33765 transitions. [2020-10-27 23:11:49,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 23:11:49,450 INFO L276 IsEmpty]: Start isEmpty. Operand 22084 states and 33765 transitions. [2020-10-27 23:11:49,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-27 23:11:49,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:49,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:11:49,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:11:49,453 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:49,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:49,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1787437888, now seen corresponding path program 1 times [2020-10-27 23:11:49,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:49,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696418361] [2020-10-27 23:11:49,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:49,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:49,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:49,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:49,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:49,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:49,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:54,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:54,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 23:11:54,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 23:11:54,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 23:11:54,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 23:11:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 23:11:54,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:54,756 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:11:54,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:54,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:54,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:54,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:54,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:54,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:11:54,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:54,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:54,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:54,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:54,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:54,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:11:54,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:54,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 23:11:54,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:54,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:54,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:54,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 23:11:54,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:54,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:11:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:54,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:54,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:54,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:54,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:54,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:11:54,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:54,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:54,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:54,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:11:54,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 23:11:54,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:11:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:54,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:54,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:54,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:54,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:54,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:11:54,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:54,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:54,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:54,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:11:54,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:54,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:11:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:54,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:54,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:54,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 23:11:54,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:54,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:11:54,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:54,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:54,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:54,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 23:11:54,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:55,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:11:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:55,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:55,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:55,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:55,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:55,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:11:55,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:55,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:55,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:11:55,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:55,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:55,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:11:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:55,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:55,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:55,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:11:55,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:55,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:11:55,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:55,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:11:55,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:55,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:55,070 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 23:11:55,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1696418361] [2020-10-27 23:11:55,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:55,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 23:11:55,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287040947] [2020-10-27 23:11:55,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 23:11:55,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:55,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 23:11:55,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-27 23:11:55,073 INFO L87 Difference]: Start difference. First operand 22084 states and 33765 transitions. Second operand 9 states. [2020-10-27 23:11:55,333 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:12:00,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:12:00,048 INFO L93 Difference]: Finished difference Result 65461 states and 100451 transitions. [2020-10-27 23:12:00,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 23:12:00,048 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-10-27 23:12:00,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:12:00,240 INFO L225 Difference]: With dead ends: 65461 [2020-10-27 23:12:00,240 INFO L226 Difference]: Without dead ends: 43465 [2020-10-27 23:12:00,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:12:00,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43465 states. [2020-10-27 23:12:03,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43465 to 38077. [2020-10-27 23:12:03,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38077 states. [2020-10-27 23:12:03,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38077 states to 38077 states and 57101 transitions. [2020-10-27 23:12:03,286 INFO L78 Accepts]: Start accepts. Automaton has 38077 states and 57101 transitions. Word has length 99 [2020-10-27 23:12:03,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:12:03,287 INFO L481 AbstractCegarLoop]: Abstraction has 38077 states and 57101 transitions. [2020-10-27 23:12:03,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 23:12:03,287 INFO L276 IsEmpty]: Start isEmpty. Operand 38077 states and 57101 transitions. [2020-10-27 23:12:03,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-27 23:12:03,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:12:03,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:12:03,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:12:03,289 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:12:03,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:12:03,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1829443368, now seen corresponding path program 1 times [2020-10-27 23:12:03,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:12:03,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323836867] [2020-10-27 23:12:03,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:12:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:03,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:03,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:03,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:03,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:03,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:03,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:07,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:08,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:08,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 23:12:08,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 23:12:08,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 23:12:08,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:08,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:08,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-27 23:12:08,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 23:12:08,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:08,578 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:12:08,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:12:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:08,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:08,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:08,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:12:08,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:08,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:12:08,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:08,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:08,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:08,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:12:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:08,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:08,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:08,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:12:08,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:08,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 23:12:08,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:08,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:08,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:08,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 23:12:08,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:08,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:12:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:08,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:08,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:08,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:12:08,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:08,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:12:08,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:08,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:08,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:08,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:12:08,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:08,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:12:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:08,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:08,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:08,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:08,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:08,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:12:08,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:08,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:08,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:08,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:12:08,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:08,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:12:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:08,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:08,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:08,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:08,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:08,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:12:08,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:08,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:08,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:08,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:12:08,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:08,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:12:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:08,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:08,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:08,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 23:12:08,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:08,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:12:08,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 23:12:08,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:08,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:12:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:08,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:08,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:08,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:12:08,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:08,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:12:08,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:08,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:08,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:12:08,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:08,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:08,874 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 23:12:08,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323836867] [2020-10-27 23:12:08,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:12:08,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 23:12:08,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373466474] [2020-10-27 23:12:08,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 23:12:08,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:12:08,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 23:12:08,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 23:12:08,877 INFO L87 Difference]: Start difference. First operand 38077 states and 57101 transitions. Second operand 9 states. [2020-10-27 23:12:09,170 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:12:14,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:12:14,688 INFO L93 Difference]: Finished difference Result 110834 states and 166682 transitions. [2020-10-27 23:12:14,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 23:12:14,689 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-10-27 23:12:14,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:12:15,003 INFO L225 Difference]: With dead ends: 110834 [2020-10-27 23:12:15,004 INFO L226 Difference]: Without dead ends: 72845 [2020-10-27 23:12:15,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:12:15,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72845 states. [2020-10-27 23:12:19,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72845 to 64927. [2020-10-27 23:12:19,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64927 states. [2020-10-27 23:12:20,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64927 states to 64927 states and 94748 transitions. [2020-10-27 23:12:20,161 INFO L78 Accepts]: Start accepts. Automaton has 64927 states and 94748 transitions. Word has length 99 [2020-10-27 23:12:20,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:12:20,161 INFO L481 AbstractCegarLoop]: Abstraction has 64927 states and 94748 transitions. [2020-10-27 23:12:20,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 23:12:20,162 INFO L276 IsEmpty]: Start isEmpty. Operand 64927 states and 94748 transitions. [2020-10-27 23:12:20,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 23:12:20,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:12:20,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:12:20,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 23:12:20,163 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:12:20,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:12:20,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1886649782, now seen corresponding path program 1 times [2020-10-27 23:12:20,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:12:20,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945877439] [2020-10-27 23:12:20,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:12:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:20,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:20,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:20,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:20,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:21,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:25,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:25,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-27 23:12:25,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:12:25,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 23:12:25,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-27 23:12:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 23:12:25,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:25,513 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:12:25,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:12:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:25,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:25,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:25,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:12:25,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:25,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:12:25,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:25,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:25,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:25,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:12:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:25,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:25,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:25,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:12:25,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:25,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:12:25,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:25,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:25,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:25,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:12:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:25,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:25,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:25,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:12:25,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:25,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:12:25,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:25,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:25,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:25,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:25,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:12:25,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:12:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:25,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:25,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:25,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:25,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:25,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:12:25,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:12:25,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:25,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:12:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:25,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:25,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:25,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:25,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:25,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:12:25,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:25,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:25,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:25,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:12:25,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:25,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:12:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:25,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:25,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:25,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:25,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:25,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-27 23:12:25,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:25,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:25,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:25,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:12:25,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:25,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:12:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:25,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:25,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:25,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 23:12:25,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:25,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:12:25,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:25,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:25,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:12:25,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:12:25,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:25,852 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 23:12:25,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945877439] [2020-10-27 23:12:25,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:12:25,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 23:12:25,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736300386] [2020-10-27 23:12:25,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 23:12:25,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:12:25,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 23:12:25,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 23:12:25,855 INFO L87 Difference]: Start difference. First operand 64927 states and 94748 transitions. Second operand 8 states. [2020-10-27 23:12:26,092 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-27 23:12:27,560 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-27 23:12:35,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:12:35,977 INFO L93 Difference]: Finished difference Result 190734 states and 280747 transitions. [2020-10-27 23:12:35,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 23:12:35,978 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 100 [2020-10-27 23:12:35,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:12:36,743 INFO L225 Difference]: With dead ends: 190734 [2020-10-27 23:12:36,743 INFO L226 Difference]: Without dead ends: 125892 [2020-10-27 23:12:36,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:12:37,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125892 states. [2020-10-27 23:12:45,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125892 to 113591. [2020-10-27 23:12:45,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113591 states. [2020-10-27 23:12:45,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113591 states to 113591 states and 162059 transitions. [2020-10-27 23:12:45,890 INFO L78 Accepts]: Start accepts. Automaton has 113591 states and 162059 transitions. Word has length 100 [2020-10-27 23:12:45,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:12:45,891 INFO L481 AbstractCegarLoop]: Abstraction has 113591 states and 162059 transitions. [2020-10-27 23:12:45,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 23:12:45,891 INFO L276 IsEmpty]: Start isEmpty. Operand 113591 states and 162059 transitions. [2020-10-27 23:12:45,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-27 23:12:45,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:12:45,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:12:45,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 23:12:45,893 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:12:45,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:12:45,896 INFO L82 PathProgramCache]: Analyzing trace with hash -15793057, now seen corresponding path program 1 times [2020-10-27 23:12:45,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:12:45,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502110341] [2020-10-27 23:12:45,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:12:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:45,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:45,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:46,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:46,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:46,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:50,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:50,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-27 23:12:50,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:12:50,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 23:12:50,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 23:12:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-27 23:12:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 23:12:50,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:51,222 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:12:51,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:12:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:51,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:51,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:51,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:12:51,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:51,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:12:51,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:51,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:51,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:51,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:51,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:51,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:12:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:51,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:51,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:51,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:12:51,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:51,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 23:12:51,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 23:12:51,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:51,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:12:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:51,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:51,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:51,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:12:51,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:51,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:12:51,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:51,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:51,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:51,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:12:51,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:51,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:12:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:51,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:51,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:51,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:12:51,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:51,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:12:51,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:51,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:51,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:51,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 23:12:51,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:51,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 23:12:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:51,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:51,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:51,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:51,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:51,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:12:51,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:51,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:51,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:51,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:51,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:51,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 23:12:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:51,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:51,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:51,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:51,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:51,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:12:51,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:51,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:51,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:51,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:51,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:51,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 23:12:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:51,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:51,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:51,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 23:12:51,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:51,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:12:51,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:51,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:51,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:12:51,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:12:51,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:51,645 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 23:12:51,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502110341] [2020-10-27 23:12:51,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:12:51,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:12:51,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204060155] [2020-10-27 23:12:51,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:12:51,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:12:51,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:12:51,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:12:51,648 INFO L87 Difference]: Start difference. First operand 113591 states and 162059 transitions. Second operand 13 states. [2020-10-27 23:12:51,915 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:12:52,437 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-27 23:12:52,674 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:12:53,884 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:12:54,785 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-27 23:12:55,935 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-27 23:13:09,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:13:09,021 INFO L93 Difference]: Finished difference Result 290216 states and 418475 transitions. [2020-10-27 23:13:09,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-27 23:13:09,021 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 102 [2020-10-27 23:13:09,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:13:09,792 INFO L225 Difference]: With dead ends: 290216 [2020-10-27 23:13:09,793 INFO L226 Difference]: Without dead ends: 176713 [2020-10-27 23:13:10,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=540, Invalid=1716, Unknown=0, NotChecked=0, Total=2256 [2020-10-27 23:13:10,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176713 states. [2020-10-27 23:13:21,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176713 to 156667. [2020-10-27 23:13:21,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156667 states. [2020-10-27 23:13:21,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156667 states to 156667 states and 224270 transitions. [2020-10-27 23:13:21,636 INFO L78 Accepts]: Start accepts. Automaton has 156667 states and 224270 transitions. Word has length 102 [2020-10-27 23:13:21,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:13:21,637 INFO L481 AbstractCegarLoop]: Abstraction has 156667 states and 224270 transitions. [2020-10-27 23:13:21,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:13:21,637 INFO L276 IsEmpty]: Start isEmpty. Operand 156667 states and 224270 transitions. [2020-10-27 23:13:21,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-27 23:13:21,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:13:21,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:13:21,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 23:13:21,638 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:13:21,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:13:21,639 INFO L82 PathProgramCache]: Analyzing trace with hash -863624667, now seen corresponding path program 1 times [2020-10-27 23:13:21,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:13:21,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358315004] [2020-10-27 23:13:21,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:13:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:21,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:21,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:21,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:22,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:22,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:26,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:26,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 23:13:26,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:13:26,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 23:13:26,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:26,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 23:13:26,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-27 23:13:26,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 23:13:26,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:26,967 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:13:26,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:13:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:26,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:26,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:26,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:13:26,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:26,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:13:26,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:26,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:26,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:26,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:26,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:26,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:13:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:26,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:27,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:27,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:13:27,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:27,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 23:13:27,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:27,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:27,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:27,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 23:13:27,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:27,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:13:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:27,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:27,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:27,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:13:27,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:27,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:13:27,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:27,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:27,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:27,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:13:27,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:27,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:13:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:27,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:27,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:27,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:13:27,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:27,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:13:27,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:13:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 23:13:27,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:27,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 23:13:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:27,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:27,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:27,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:27,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:27,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:13:27,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:27,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:27,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:13:27,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:13:27,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:27,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 23:13:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:27,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:27,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:27,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:27,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:27,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:13:27,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:27,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:27,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:13:27,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:13:27,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:27,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 23:13:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:27,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:27,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:27,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:13:27,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:27,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:13:27,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 23:13:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:13:27,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:27,363 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 23:13:27,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [358315004] [2020-10-27 23:13:27,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:13:27,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:13:27,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000871535] [2020-10-27 23:13:27,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:13:27,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:13:27,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:13:27,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:13:27,365 INFO L87 Difference]: Start difference. First operand 156667 states and 224270 transitions. Second operand 14 states. [2020-10-27 23:13:27,675 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-27 23:13:28,383 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:13:28,667 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:13:30,114 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:13:31,179 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:13:32,584 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191