/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_floodmax.5.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:53:48,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:53:48,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:53:48,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:53:48,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:53:48,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:53:48,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:53:48,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:53:48,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:53:48,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:53:48,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:53:48,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:53:48,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:53:48,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:53:48,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:53:48,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:53:48,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:53:48,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:53:48,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:53:48,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:53:48,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:53:48,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:53:48,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:53:48,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:53:48,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:53:48,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:53:48,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:53:48,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:53:48,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:53:48,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:53:48,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:53:48,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:53:48,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:53:48,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:53:48,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:53:48,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:53:48,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:53:48,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:53:48,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:53:48,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:53:48,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:53:48,310 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 22:53:48,359 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:53:48,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:53:48,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:53:48,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:53:48,365 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:53:48,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:53:48,365 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:53:48,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:53:48,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:53:48,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:53:48,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:53:48,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:53:48,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:53:48,368 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:53:48,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:53:48,368 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:53:48,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:53:48,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:53:48,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:53:48,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:53:48,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:53:48,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:53:48,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:53:48,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:53:48,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:53:48,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:53:48,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:53:48,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:53:48,371 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:53:48,371 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:53:48,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:53:48,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:53:48,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:53:48,790 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:53:48,791 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:53:48,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.ufo.BOUNDED-10.pals.c [2020-10-27 22:53:48,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce376059d/8a377e11ada24816b4aa068cae165cb8/FLAGf2344e97b [2020-10-27 22:53:49,635 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:53:49,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.ufo.BOUNDED-10.pals.c [2020-10-27 22:53:49,675 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce376059d/8a377e11ada24816b4aa068cae165cb8/FLAGf2344e97b [2020-10-27 22:53:49,848 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce376059d/8a377e11ada24816b4aa068cae165cb8 [2020-10-27 22:53:49,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:53:49,860 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:53:49,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:53:49,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:53:49,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:53:49,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:53:49" (1/1) ... [2020-10-27 22:53:49,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5712c473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:53:49, skipping insertion in model container [2020-10-27 22:53:49,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:53:49" (1/1) ... [2020-10-27 22:53:49,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:53:49,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:53:50,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:53:50,558 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:53:50,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:53:50,869 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:53:50,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:53:50 WrapperNode [2020-10-27 22:53:50,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:53:50,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:53:50,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:53:50,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:53:50,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:53:50" (1/1) ... [2020-10-27 22:53:50,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:53:50" (1/1) ... [2020-10-27 22:53:50,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:53:50" (1/1) ... [2020-10-27 22:53:50,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:53:50" (1/1) ... [2020-10-27 22:53:51,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:53:50" (1/1) ... [2020-10-27 22:53:51,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:53:50" (1/1) ... [2020-10-27 22:53:51,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:53:50" (1/1) ... [2020-10-27 22:53:51,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:53:51,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:53:51,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:53:51,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:53:51,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:53:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:53:51,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:53:51,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:53:51,165 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:53:51,165 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 22:53:51,165 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 22:53:51,165 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 22:53:51,165 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 22:53:51,166 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 22:53:51,166 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 22:53:51,166 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 22:53:51,166 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 22:53:51,166 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:53:51,167 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 22:53:51,167 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:53:51,167 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:53:51,167 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:53:51,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:53:51,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 22:53:51,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 22:53:51,168 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 22:53:51,168 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 22:53:51,168 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 22:53:51,168 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 22:53:51,169 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 22:53:51,169 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 22:53:51,169 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 22:53:51,169 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 22:53:51,169 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 22:53:51,169 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 22:53:51,169 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 22:53:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:53:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:53:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:53:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:53:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:53:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:53:51,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:53:53,747 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:53:53,748 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 22:53:53,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:53:53 BoogieIcfgContainer [2020-10-27 22:53:53,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:53:53,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:53:53,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:53:53,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:53:53,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:53:49" (1/3) ... [2020-10-27 22:53:53,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0809ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:53:53, skipping insertion in model container [2020-10-27 22:53:53,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:53:50" (2/3) ... [2020-10-27 22:53:53,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0809ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:53:53, skipping insertion in model container [2020-10-27 22:53:53,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:53:53" (3/3) ... [2020-10-27 22:53:53,766 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.ufo.BOUNDED-10.pals.c [2020-10-27 22:53:53,782 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:53:53,788 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 22:53:53,802 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 22:53:53,847 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:53:53,847 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:53:53,847 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:53:53,847 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:53:53,848 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:53:53,848 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:53:53,848 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:53:53,848 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:53:53,881 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states. [2020-10-27 22:53:53,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-27 22:53:53,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:53:53,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:53:53,913 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:53:53,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:53:53,920 INFO L82 PathProgramCache]: Analyzing trace with hash -966148239, now seen corresponding path program 1 times [2020-10-27 22:53:53,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:53:53,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203202224] [2020-10-27 22:53:53,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:53:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:54,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:55,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:55,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-27 22:53:55,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:55,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 969 [2020-10-27 22:53:55,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:55,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:55,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-27 22:53:55,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:55,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:53:56,662 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:53:56,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:53:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:56,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:56,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:56,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:53:56,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:56,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-27 22:53:56,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:56,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:56,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:56,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:56,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:56,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:53:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:56,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:56,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:56,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 22:53:56,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:56,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-27 22:53:56,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:56,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 22:53:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:57,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:53:57,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:53:57,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:57,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:53:57,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:57,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 22:53:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:57,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:57,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:53:57,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:57,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:57,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:57,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 22:53:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:57,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:57,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:53:57,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:57,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:57,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 22:53:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:57,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:57,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:53:57,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:57,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:57,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:57,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 22:53:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:57,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:57,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:53:57,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:57,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 22:53:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:57,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:57,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:53:57,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:57,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:57,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:57,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-27 22:53:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:57,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:57,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:53:57,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:57,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:57,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:57,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:53:57,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203202224] [2020-10-27 22:53:57,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:53:57,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 22:53:57,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067265775] [2020-10-27 22:53:57,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 22:53:57,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:53:57,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 22:53:57,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 22:53:57,544 INFO L87 Difference]: Start difference. First operand 742 states. Second operand 8 states. [2020-10-27 22:54:00,632 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:01,325 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:02,014 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:02,576 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:03,121 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:03,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:54:03,909 INFO L93 Difference]: Finished difference Result 976 states and 1721 transitions. [2020-10-27 22:54:03,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 22:54:03,911 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 183 [2020-10-27 22:54:03,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:54:03,938 INFO L225 Difference]: With dead ends: 976 [2020-10-27 22:54:03,938 INFO L226 Difference]: Without dead ends: 784 [2020-10-27 22:54:03,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:54:03,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-10-27 22:54:04,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 734. [2020-10-27 22:54:04,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-10-27 22:54:04,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1328 transitions. [2020-10-27 22:54:04,161 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1328 transitions. Word has length 183 [2020-10-27 22:54:04,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:54:04,162 INFO L481 AbstractCegarLoop]: Abstraction has 734 states and 1328 transitions. [2020-10-27 22:54:04,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 22:54:04,162 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1328 transitions. [2020-10-27 22:54:04,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-27 22:54:04,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:54:04,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:54:04,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:54:04,173 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:54:04,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:54:04,174 INFO L82 PathProgramCache]: Analyzing trace with hash 973013807, now seen corresponding path program 1 times [2020-10-27 22:54:04,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:54:04,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226096704] [2020-10-27 22:54:04,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:54:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:04,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:07,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:07,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-27 22:54:07,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:07,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2959 [2020-10-27 22:54:07,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:07,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:54:07,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-27 22:54:07,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:54:07,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:08,566 WARN L193 SmtUtils]: Spent 954.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:54:08,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:54:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:08,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:08,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:08,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:54:08,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:08,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 22:54:08,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:08,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:08,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:08,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:54:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:08,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:09,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:09,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 22:54:09,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:09,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 733 [2020-10-27 22:54:09,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:09,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-27 22:54:09,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:54:09,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 22:54:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:09,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:09,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:09,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:54:09,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:09,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:54:09,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:09,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:09,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:54:09,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:54:09,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:09,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 22:54:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:09,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:09,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:09,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:09,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:09,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:54:09,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:09,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:09,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:09,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:09,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:09,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 22:54:09,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:09,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:09,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:09,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:09,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:09,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:54:09,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:09,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:09,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:09,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:09,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:09,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 22:54:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:09,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:09,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:09,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:09,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:09,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:54:09,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:09,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:09,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:09,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 22:54:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:09,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:09,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:09,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:09,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:09,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:54:09,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:09,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:09,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:09,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:09,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:09,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 22:54:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:09,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:09,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:09,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:09,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:09,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:54:09,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:09,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:09,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:09,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:09,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:09,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-27 22:54:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:09,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:09,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:09,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:09,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:09,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:54:09,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:09,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:10,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:54:10,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226096704] [2020-10-27 22:54:10,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:54:10,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 22:54:10,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322824981] [2020-10-27 22:54:10,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 22:54:10,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:54:10,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 22:54:10,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 22:54:10,082 INFO L87 Difference]: Start difference. First operand 734 states and 1328 transitions. Second operand 14 states. [2020-10-27 22:54:19,892 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-27 22:54:20,983 WARN L193 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2020-10-27 22:54:22,217 WARN L193 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 396 [2020-10-27 22:54:23,327 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 400 [2020-10-27 22:54:24,707 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:25,484 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:26,372 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:27,209 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:28,090 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:29,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:54:29,558 INFO L93 Difference]: Finished difference Result 977 states and 1723 transitions. [2020-10-27 22:54:29,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 22:54:29,559 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 183 [2020-10-27 22:54:29,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:54:29,567 INFO L225 Difference]: With dead ends: 977 [2020-10-27 22:54:29,568 INFO L226 Difference]: Without dead ends: 795 [2020-10-27 22:54:29,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:54:29,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2020-10-27 22:54:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 734. [2020-10-27 22:54:29,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-10-27 22:54:29,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1268 transitions. [2020-10-27 22:54:29,732 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1268 transitions. Word has length 183 [2020-10-27 22:54:29,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:54:29,733 INFO L481 AbstractCegarLoop]: Abstraction has 734 states and 1268 transitions. [2020-10-27 22:54:29,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 22:54:29,733 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1268 transitions. [2020-10-27 22:54:29,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-27 22:54:29,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:54:29,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:54:29,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:54:29,739 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:54:29,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:54:29,740 INFO L82 PathProgramCache]: Analyzing trace with hash -929784361, now seen corresponding path program 1 times [2020-10-27 22:54:29,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:54:29,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834415713] [2020-10-27 22:54:29,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:54:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:29,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:30,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:30,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:31,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:34,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:34,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-27 22:54:34,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:54:34,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5090 [2020-10-27 22:54:34,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-27 22:54:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-27 22:54:34,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:54:36,005 WARN L193 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:54:36,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:54:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:36,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:36,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:36,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:54:36,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:36,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 22:54:36,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:36,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:36,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:36,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:36,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:36,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:54:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:36,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:36,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:36,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:54:36,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:36,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-10-27 22:54:36,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:36,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:36,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:36,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-27 22:54:36,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:36,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:54:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:36,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:36,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:36,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:54:36,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:36,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:54:36,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:36,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:54:36,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:36,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:54:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:36,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:36,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:36,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:36,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:36,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:54:36,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:36,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:36,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:36,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:54:36,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:36,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:54:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:36,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:36,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:36,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:36,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:36,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:54:36,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:36,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:36,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:36,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:54:36,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:36,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-27 22:54:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:36,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:36,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:36,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:36,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:36,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:54:36,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:54:36,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:36,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-27 22:54:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:36,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:36,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:36,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:36,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 22:54:36,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:54:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:54:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:36,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-27 22:54:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:36,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:36,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:36,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:36,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:36,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:54:36,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:36,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:36,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:36,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:36,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:36,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-27 22:54:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:36,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:36,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:36,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:36,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:36,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:54:36,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:36,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:36,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:36,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:36,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:37,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:54:37,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834415713] [2020-10-27 22:54:37,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:54:37,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:54:37,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082716669] [2020-10-27 22:54:37,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:54:37,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:54:37,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:54:37,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:54:37,086 INFO L87 Difference]: Start difference. First operand 734 states and 1268 transitions. Second operand 11 states. [2020-10-27 22:54:38,160 WARN L193 SmtUtils]: Spent 982.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:54:44,864 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:45,483 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:46,271 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:47,014 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:47,549 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:48,199 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:48,484 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:50,235 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:50,773 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:51,336 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:52,680 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:54:53,002 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:53,345 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:54:53,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:54:53,453 INFO L93 Difference]: Finished difference Result 1180 states and 1994 transitions. [2020-10-27 22:54:53,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:54:53,454 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 242 [2020-10-27 22:54:53,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:54:53,462 INFO L225 Difference]: With dead ends: 1180 [2020-10-27 22:54:53,463 INFO L226 Difference]: Without dead ends: 1004 [2020-10-27 22:54:53,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:54:53,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2020-10-27 22:54:53,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 898. [2020-10-27 22:54:53,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-27 22:54:53,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1537 transitions. [2020-10-27 22:54:53,640 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1537 transitions. Word has length 242 [2020-10-27 22:54:53,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:54:53,641 INFO L481 AbstractCegarLoop]: Abstraction has 898 states and 1537 transitions. [2020-10-27 22:54:53,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:54:53,642 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1537 transitions. [2020-10-27 22:54:53,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-27 22:54:53,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:54:53,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:54:53,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:54:53,649 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:54:53,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:54:53,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1924668613, now seen corresponding path program 1 times [2020-10-27 22:54:53,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:54:53,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17701250] [2020-10-27 22:54:53,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:54:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:53,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:54,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:54,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:55,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:55,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:56,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:56,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:58,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:58,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-27 22:54:58,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 22:54:58,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-27 22:54:58,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:58,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:58,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-27 22:54:58,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:54:58,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:59,934 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:54:59,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:54:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:59,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:59,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:59,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:54:59,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:59,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 22:54:59,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:59,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:59,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:59,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:59,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:59,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:55:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:00,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:00,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:00,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:55:00,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:00,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-27 22:55:00,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:00,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:00,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:00,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-27 22:55:00,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:00,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:55:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:00,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:00,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:00,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:55:00,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:00,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:55:00,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:00,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:00,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:00,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:55:00,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:00,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:55:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:00,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:00,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:00,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:00,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:00,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:55:00,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:00,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:00,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:00,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:55:00,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:00,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:55:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:00,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:00,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:00,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:00,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:00,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:55:00,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:00,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:00,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:00,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:55:00,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:00,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-27 22:55:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:00,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:00,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:00,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:00,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:00,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 22:55:00,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:55:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:55:00,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:00,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-27 22:55:00,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:00,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:00,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:00,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:00,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:00,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:55:00,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:00,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:00,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:55:00,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:00,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:00,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-27 22:55:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:00,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:00,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:00,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:00,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:00,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:55:00,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:55:00,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:00,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:00,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-27 22:55:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:00,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:00,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:00,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:00,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:00,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:55:00,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:00,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:00,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:55:00,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:00,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:00,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:55:00,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17701250] [2020-10-27 22:55:00,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:55:00,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:55:00,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826895139] [2020-10-27 22:55:00,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:55:00,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:55:00,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:55:00,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:55:00,964 INFO L87 Difference]: Start difference. First operand 898 states and 1537 transitions. Second operand 11 states. [2020-10-27 22:55:02,020 WARN L193 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:55:08,806 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:09,430 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:10,172 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:10,627 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:55:11,234 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:11,495 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:12,433 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:12,702 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:14,366 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:14,838 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:16,130 WARN L193 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:55:16,411 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:55:16,714 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:55:16,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:55:16,850 INFO L93 Difference]: Finished difference Result 1766 states and 2947 transitions. [2020-10-27 22:55:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:55:16,853 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 246 [2020-10-27 22:55:16,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:55:16,862 INFO L225 Difference]: With dead ends: 1766 [2020-10-27 22:55:16,862 INFO L226 Difference]: Without dead ends: 1426 [2020-10-27 22:55:16,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:55:16,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2020-10-27 22:55:17,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1217. [2020-10-27 22:55:17,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1217 states. [2020-10-27 22:55:17,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 2056 transitions. [2020-10-27 22:55:17,053 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 2056 transitions. Word has length 246 [2020-10-27 22:55:17,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:55:17,054 INFO L481 AbstractCegarLoop]: Abstraction has 1217 states and 2056 transitions. [2020-10-27 22:55:17,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:55:17,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 2056 transitions. [2020-10-27 22:55:17,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-27 22:55:17,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:55:17,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:55:17,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:55:17,060 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:55:17,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:55:17,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1834733217, now seen corresponding path program 1 times [2020-10-27 22:55:17,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:55:17,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84828194] [2020-10-27 22:55:17,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:55:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:17,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:17,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:17,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:18,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:19,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:20,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:20,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:21,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:21,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:21,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:22,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:22,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-27 22:55:22,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 22:55:22,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-10-27 22:55:22,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-10-27 22:55:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 22:55:22,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:23,335 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:55:23,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:55:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:23,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:23,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:23,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:55:23,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:23,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 22:55:23,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:23,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:23,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:55:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:23,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:23,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:23,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:55:23,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:23,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-10-27 22:55:23,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-27 22:55:23,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:23,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:55:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:23,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:23,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:23,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:55:23,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:23,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:55:23,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:23,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:23,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:23,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:55:23,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:23,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:55:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:23,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:23,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:23,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:23,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:23,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:55:23,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:23,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:23,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:23,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:55:23,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:23,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:55:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:23,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:23,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:23,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:23,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:23,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:55:23,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:23,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:23,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:55:23,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:55:23,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:24,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-27 22:55:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:24,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:24,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:24,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:24,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:24,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:55:24,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:55:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:24,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:24,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 22:55:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:24,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:24,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:24,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:24,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:24,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:55:24,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:55:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:24,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:24,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-10-27 22:55:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:24,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:24,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:24,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:24,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:24,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:55:24,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:24,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:24,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:55:24,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:24,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:24,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-27 22:55:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:24,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:24,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:24,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:24,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:24,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:55:24,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:24,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:24,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:55:24,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:24,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:24,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:55:24,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84828194] [2020-10-27 22:55:24,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:55:24,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:55:24,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834668489] [2020-10-27 22:55:24,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:55:24,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:55:24,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:55:24,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:55:24,283 INFO L87 Difference]: Start difference. First operand 1217 states and 2056 transitions. Second operand 11 states. [2020-10-27 22:55:25,376 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:55:32,726 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:33,344 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:33,846 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:55:34,473 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:34,744 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:35,889 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:36,160 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:37,288 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:37,561 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:39,462 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:40,707 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:55:40,987 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:55:41,289 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:55:41,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:55:41,466 INFO L93 Difference]: Finished difference Result 2911 states and 4796 transitions. [2020-10-27 22:55:41,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:55:41,469 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 250 [2020-10-27 22:55:41,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:55:41,481 INFO L225 Difference]: With dead ends: 2911 [2020-10-27 22:55:41,482 INFO L226 Difference]: Without dead ends: 2252 [2020-10-27 22:55:41,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:55:41,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2020-10-27 22:55:41,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 1837. [2020-10-27 22:55:41,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1837 states. [2020-10-27 22:55:41,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 3056 transitions. [2020-10-27 22:55:41,726 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 3056 transitions. Word has length 250 [2020-10-27 22:55:41,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:55:41,727 INFO L481 AbstractCegarLoop]: Abstraction has 1837 states and 3056 transitions. [2020-10-27 22:55:41,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:55:41,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 3056 transitions. [2020-10-27 22:55:41,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-27 22:55:41,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:55:41,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:55:41,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:55:41,732 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:55:41,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:55:41,733 INFO L82 PathProgramCache]: Analyzing trace with hash 651225798, now seen corresponding path program 1 times [2020-10-27 22:55:41,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:55:41,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392344662] [2020-10-27 22:55:41,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:55:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:41,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:42,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:42,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:42,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:43,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:43,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:46,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:46,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-27 22:55:46,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:55:46,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-27 22:55:46,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-10-27 22:55:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:55:46,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:47,925 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:55:47,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:55:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:47,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:47,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:47,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:55:47,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:47,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 22:55:47,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:47,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:47,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:47,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:47,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:47,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:55:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:48,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:48,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:48,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:55:48,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:48,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-27 22:55:48,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:48,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:48,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-27 22:55:48,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:48,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:55:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:48,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:48,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:48,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:55:48,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:48,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:55:48,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:48,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:48,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:48,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:55:48,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:48,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:55:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:48,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:48,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:48,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:48,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:48,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:55:48,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:48,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:55:48,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:48,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:55:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:48,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:48,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:48,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:48,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:48,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 22:55:48,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:48,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:48,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:55:48,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:55:48,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:48,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-27 22:55:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:48,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:48,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:48,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:48,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:48,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:55:48,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:48,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:55:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:48,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:48,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-27 22:55:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:48,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:48,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:48,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:48,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:48,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:55:48,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:48,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:48,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:55:48,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:48,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:48,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-27 22:55:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:48,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:48,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:48,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:48,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:48,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:55:48,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:48,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:48,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:55:48,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:48,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:48,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-27 22:55:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:48,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:48,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:48,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:48,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:48,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:55:48,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:48,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:48,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:55:48,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:48,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:48,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:55:48,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392344662] [2020-10-27 22:55:48,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:55:48,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 22:55:48,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157226411] [2020-10-27 22:55:48,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:55:48,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:55:48,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:55:48,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:55:48,897 INFO L87 Difference]: Start difference. First operand 1837 states and 3056 transitions. Second operand 10 states. [2020-10-27 22:55:49,963 WARN L193 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 389 [2020-10-27 22:55:57,342 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:55:58,116 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:55:58,475 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:58,873 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:59,624 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:00,366 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:01,556 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:02,079 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 22:56:02,553 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 22:56:02,894 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:56:03,585 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:56:04,322 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:56:05,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:56:05,298 INFO L93 Difference]: Finished difference Result 3657 states and 6011 transitions. [2020-10-27 22:56:05,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 22:56:05,299 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2020-10-27 22:56:05,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:56:05,315 INFO L225 Difference]: With dead ends: 3657 [2020-10-27 22:56:05,315 INFO L226 Difference]: Without dead ends: 2990 [2020-10-27 22:56:05,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:56:05,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2020-10-27 22:56:05,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2417. [2020-10-27 22:56:05,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2417 states. [2020-10-27 22:56:05,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 4001 transitions. [2020-10-27 22:56:05,635 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 4001 transitions. Word has length 254 [2020-10-27 22:56:05,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:56:05,635 INFO L481 AbstractCegarLoop]: Abstraction has 2417 states and 4001 transitions. [2020-10-27 22:56:05,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:56:05,636 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 4001 transitions. [2020-10-27 22:56:05,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-27 22:56:05,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:56:05,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:56:05,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:56:05,640 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:56:05,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:56:05,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1666918467, now seen corresponding path program 1 times [2020-10-27 22:56:05,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:56:05,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772335206] [2020-10-27 22:56:05,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:56:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:05,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:05,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:10,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:10,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-27 22:56:10,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 22:56:10,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-27 22:56:10,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:10,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:10,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-27 22:56:10,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 22:56:10,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 22:56:12,004 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:56:12,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:56:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:12,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:56:12,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 22:56:12,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:12,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:12,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:12,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:12,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:56:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:12,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:56:12,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-27 22:56:12,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:12,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:12,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-27 22:56:12,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:12,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:56:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:12,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:56:12,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:56:12,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:12,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:12,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:56:12,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:12,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:56:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:12,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:12,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:56:12,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:56:12,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:12,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:56:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:12,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:56:12,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:56:12,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:56:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:12,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:12,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-27 22:56:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:12,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:56:12,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:56:12,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:12,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:56:12,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:12,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:12,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-27 22:56:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:12,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:56:12,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:56:12,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:12,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:56:12,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:12,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:12,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-27 22:56:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:12,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:12,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:56:12,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:12,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:56:12,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:12,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:12,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-27 22:56:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:12,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:12,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:56:12,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:12,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:56:12,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:12,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:12,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:56:12,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772335206] [2020-10-27 22:56:12,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:56:12,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:56:12,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100375618] [2020-10-27 22:56:12,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:56:12,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:56:12,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:56:12,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:56:12,743 INFO L87 Difference]: Start difference. First operand 2417 states and 4001 transitions. Second operand 11 states. [2020-10-27 22:56:13,842 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:56:20,754 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:21,159 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:56:21,736 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:56:22,025 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:22,543 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:56:22,807 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:23,634 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:56:23,900 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:24,714 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:56:24,981 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:26,771 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:56:27,448 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:56:27,806 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:56:28,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:56:28,317 INFO L93 Difference]: Finished difference Result 7186 states and 11676 transitions. [2020-10-27 22:56:28,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:56:28,319 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 254 [2020-10-27 22:56:28,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:56:28,346 INFO L225 Difference]: With dead ends: 7186 [2020-10-27 22:56:28,346 INFO L226 Difference]: Without dead ends: 5354 [2020-10-27 22:56:28,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:56:28,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2020-10-27 22:56:28,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 4149. [2020-10-27 22:56:28,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4149 states. [2020-10-27 22:56:28,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4149 states to 4149 states and 6685 transitions. [2020-10-27 22:56:28,919 INFO L78 Accepts]: Start accepts. Automaton has 4149 states and 6685 transitions. Word has length 254 [2020-10-27 22:56:28,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:56:28,920 INFO L481 AbstractCegarLoop]: Abstraction has 4149 states and 6685 transitions. [2020-10-27 22:56:28,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:56:28,920 INFO L276 IsEmpty]: Start isEmpty. Operand 4149 states and 6685 transitions. [2020-10-27 22:56:28,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-27 22:56:28,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:56:28,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:56:28,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 22:56:28,925 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:56:28,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:56:28,926 INFO L82 PathProgramCache]: Analyzing trace with hash 552749287, now seen corresponding path program 1 times [2020-10-27 22:56:28,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:56:28,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442834680] [2020-10-27 22:56:28,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:56:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:29,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:29,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:29,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:29,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:30,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:30,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:30,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:30,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:30,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:34,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:34,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-27 22:56:34,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 22:56:34,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 22:56:34,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-27 22:56:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 22:56:34,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:35,064 WARN L193 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:56:35,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:56:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:35,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:35,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:35,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:56:35,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:35,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:56:35,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:35,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:35,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:35,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:35,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:35,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:56:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:35,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:35,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:35,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:56:35,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:35,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-27 22:56:35,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-27 22:56:35,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:35,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:56:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:35,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:35,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:35,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:56:35,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:35,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:56:35,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:35,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:35,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:35,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:56:35,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:35,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:56:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:35,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:35,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:35,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:56:35,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:35,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:56:35,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:35,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:35,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:35,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:56:35,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:35,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-27 22:56:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:35,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:35,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:35,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:56:35,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:35,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:56:35,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:35,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:35,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:35,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:56:35,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:35,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-27 22:56:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:35,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:35,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:35,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:56:35,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:35,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:56:35,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:35,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:35,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:35,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:56:35,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:35,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-27 22:56:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:35,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:35,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:35,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:56:35,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:35,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:56:35,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:56:35,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:35,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-10-27 22:56:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:35,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:35,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:35,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:35,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:35,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:56:35,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:35,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:35,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:35,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:56:35,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:35,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-27 22:56:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:35,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:35,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:35,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:35,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:35,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:56:35,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:35,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:35,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:56:35,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:35,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:56:35,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442834680] [2020-10-27 22:56:35,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:56:35,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:56:35,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543542278] [2020-10-27 22:56:35,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:56:35,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:56:35,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:56:35,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:56:35,862 INFO L87 Difference]: Start difference. First operand 4149 states and 6685 transitions. Second operand 11 states. [2020-10-27 22:56:36,944 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:56:44,436 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:56:45,243 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:56:45,784 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:56:46,538 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:56:47,214 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:47,637 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:56:48,872 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:49,406 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:50,094 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:50,654 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:52,074 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:56:52,391 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:56:52,724 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:56:53,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:56:53,165 INFO L93 Difference]: Finished difference Result 13365 states and 21249 transitions. [2020-10-27 22:56:53,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:56:53,166 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 258 [2020-10-27 22:56:53,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:56:53,215 INFO L225 Difference]: With dead ends: 13365 [2020-10-27 22:56:53,215 INFO L226 Difference]: Without dead ends: 9810 [2020-10-27 22:56:53,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:56:53,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9810 states. [2020-10-27 22:56:53,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9810 to 7485. [2020-10-27 22:56:53,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7485 states. [2020-10-27 22:56:54,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7485 states to 7485 states and 11877 transitions. [2020-10-27 22:56:54,019 INFO L78 Accepts]: Start accepts. Automaton has 7485 states and 11877 transitions. Word has length 258 [2020-10-27 22:56:54,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:56:54,020 INFO L481 AbstractCegarLoop]: Abstraction has 7485 states and 11877 transitions. [2020-10-27 22:56:54,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:56:54,020 INFO L276 IsEmpty]: Start isEmpty. Operand 7485 states and 11877 transitions. [2020-10-27 22:56:54,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-27 22:56:54,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:56:54,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:56:54,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 22:56:54,026 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:56:54,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:56:54,027 INFO L82 PathProgramCache]: Analyzing trace with hash 2051169035, now seen corresponding path program 1 times [2020-10-27 22:56:54,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:56:54,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724467951] [2020-10-27 22:56:54,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:56:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:54,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:54,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:54,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:54,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:55,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:55,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:55,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:55,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:55,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:59,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:59,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-27 22:56:59,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 22:56:59,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5078 [2020-10-27 22:56:59,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 22:56:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-27 22:56:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-27 22:56:59,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:00,295 WARN L193 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:57:00,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:57:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:00,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:00,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:00,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:57:00,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:00,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:57:00,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:00,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:57:00,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:00,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:57:00,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:00,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:57:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:00,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:00,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:00,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:57:00,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:00,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 597 [2020-10-27 22:57:00,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:00,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:57:00,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:00,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-27 22:57:00,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:01,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:57:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:01,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:01,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:01,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:57:01,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:01,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:01,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:01,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:01,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:57:01,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:57:01,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:01,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:57:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:01,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:01,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:01,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:57:01,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:01,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:57:01,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:01,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:01,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:01,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:57:01,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:01,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-27 22:57:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:01,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:01,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:01,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:57:01,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:01,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:57:01,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:01,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:01,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:01,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:57:01,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:01,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-27 22:57:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:01,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:01,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:01,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:57:01,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:01,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:57:01,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:01,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:01,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:01,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:57:01,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:01,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-27 22:57:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:01,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:01,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:01,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:57:01,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:01,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 22:57:01,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:01,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:01,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:01,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:57:01,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:01,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-10-27 22:57:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:01,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:01,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:01,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:57:01,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:01,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:57:01,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:01,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:57:01,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:57:01,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:57:01,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:01,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-10-27 22:57:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:57:01,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:57:01,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:57:01,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:57:01,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:57:01,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:57:01,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:57:01,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:57:01,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:57:01,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:57:01,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:57:01,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:57:01,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724467951] [2020-10-27 22:57:01,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:57:01,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 22:57:01,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308861535] [2020-10-27 22:57:01,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 22:57:01,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:57:01,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 22:57:01,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2020-10-27 22:57:01,886 INFO L87 Difference]: Start difference. First operand 7485 states and 11877 transitions. Second operand 19 states. [2020-10-27 22:57:04,181 WARN L193 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 396 DAG size of output: 393 [2020-10-27 22:57:12,418 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:57:13,540 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-27 22:57:14,689 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 390 [2020-10-27 22:57:15,917 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 392 [2020-10-27 22:57:16,933 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 180 [2020-10-27 22:57:17,563 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:57:18,474 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 180 [2020-10-27 22:57:18,874 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:57:19,983 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 180 [2020-10-27 22:57:20,319 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:57:21,098 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:57:21,534 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:57:22,418 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 180 [2020-10-27 22:57:22,790 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:57:23,098 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:57:24,024 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:57:24,488 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:57:24,872 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:57:25,791 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 180 [2020-10-27 22:57:26,198 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 22:57:26,536 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:57:26,878 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:57:27,898 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 22:57:28,441 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 174