/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=SHALLOWEST --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-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 05:29:34,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 05:29:34,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 05:29:34,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 05:29:34,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 05:29:34,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 05:29:34,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 05:29:34,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 05:29:34,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 05:29:34,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 05:29:34,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 05:29:34,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 05:29:34,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 05:29:34,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 05:29:34,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 05:29:34,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 05:29:34,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 05:29:34,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 05:29:34,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 05:29:34,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 05:29:34,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 05:29:34,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 05:29:34,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 05:29:34,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 05:29:34,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 05:29:34,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 05:29:34,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 05:29:34,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 05:29:34,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 05:29:34,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 05:29:34,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 05:29:34,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 05:29:34,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 05:29:34,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 05:29:34,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 05:29:34,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 05:29:34,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 05:29:34,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 05:29:34,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 05:29:34,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 05:29:34,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 05:29:34,143 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 05:29:34,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 05:29:34,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 05:29:34,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 05:29:34,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 05:29:34,190 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 05:29:34,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 05:29:34,191 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 05:29:34,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 05:29:34,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 05:29:34,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 05:29:34,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 05:29:34,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 05:29:34,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 05:29:34,193 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 05:29:34,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 05:29:34,193 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 05:29:34,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 05:29:34,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 05:29:34,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 05:29:34,194 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 05:29:34,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 05:29:34,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 05:29:34,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 05:29:34,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 05:29:34,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 05:29:34,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 05:29:34,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 05:29:34,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 05:29:34,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 05:29:34,197 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 05:29:34,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 05:29:34,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 05:29:34,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 05:29:34,603 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 05:29:34,603 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 05:29:34,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-10-27 05:29:34,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40fb30928/7239cee08bd1415a8c2d4660026a289a/FLAG6db420108 [2020-10-27 05:29:35,388 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 05:29:35,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-10-27 05:29:35,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40fb30928/7239cee08bd1415a8c2d4660026a289a/FLAG6db420108 [2020-10-27 05:29:35,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40fb30928/7239cee08bd1415a8c2d4660026a289a [2020-10-27 05:29:35,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 05:29:35,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 05:29:35,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 05:29:35,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 05:29:35,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 05:29:35,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:29:35" (1/1) ... [2020-10-27 05:29:35,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1bf27b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:29:35, skipping insertion in model container [2020-10-27 05:29:35,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:29:35" (1/1) ... [2020-10-27 05:29:35,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 05:29:35,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 05:29:36,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 05:29:36,238 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 05:29:36,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 05:29:36,408 INFO L208 MainTranslator]: Completed translation [2020-10-27 05:29:36,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:29:36 WrapperNode [2020-10-27 05:29:36,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 05:29:36,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 05:29:36,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 05:29:36,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 05:29:36,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:29:36" (1/1) ... [2020-10-27 05:29:36,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:29:36" (1/1) ... [2020-10-27 05:29:36,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:29:36" (1/1) ... [2020-10-27 05:29:36,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:29:36" (1/1) ... [2020-10-27 05:29:36,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:29:36" (1/1) ... [2020-10-27 05:29:36,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:29:36" (1/1) ... [2020-10-27 05:29:36,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:29:36" (1/1) ... [2020-10-27 05:29:36,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 05:29:36,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 05:29:36,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 05:29:36,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 05:29:36,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:29:36" (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 05:29:36,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 05:29:36,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 05:29:36,632 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 05:29:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 05:29:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 05:29:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 05:29:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 05:29:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 05:29:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 05:29:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 05:29:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 05:29:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 05:29:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 05:29:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 05:29:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 05:29:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 05:29:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 05:29:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 05:29:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 05:29:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 05:29:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 05:29:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-27 05:29:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2020-10-27 05:29:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 05:29:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 05:29:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 05:29:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 05:29:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 05:29:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 05:29:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 05:29:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 05:29:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 05:29:37,883 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 05:29:37,884 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 05:29:37,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:29:37 BoogieIcfgContainer [2020-10-27 05:29:37,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 05:29:37,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 05:29:37,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 05:29:37,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 05:29:37,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:29:35" (1/3) ... [2020-10-27 05:29:37,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9118b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:29:37, skipping insertion in model container [2020-10-27 05:29:37,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:29:36" (2/3) ... [2020-10-27 05:29:37,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9118b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:29:37, skipping insertion in model container [2020-10-27 05:29:37,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:29:37" (3/3) ... [2020-10-27 05:29:37,896 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-10-27 05:29:37,908 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 05:29:37,913 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 05:29:37,927 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 05:29:37,953 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 05:29:37,953 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 05:29:37,953 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 05:29:37,954 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 05:29:37,954 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 05:29:37,954 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 05:29:37,954 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 05:29:37,954 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 05:29:37,977 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states. [2020-10-27 05:29:37,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-27 05:29:37,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:29:37,990 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] [2020-10-27 05:29:37,991 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:29:37,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:29:37,997 INFO L82 PathProgramCache]: Analyzing trace with hash 825418362, now seen corresponding path program 1 times [2020-10-27 05:29:38,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:29:38,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476962252] [2020-10-27 05:29:38,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:29:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:29:38,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:38,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:38,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:39,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:39,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:39,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:39,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:39,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:40,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:42,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:42,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:43,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:43,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:29:43,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-27 05:29:43,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-27 05:29:43,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 05:29:43,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:29:43,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 05:29:43,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 05:29:43,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-27 05:29:43,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 05:29:44,144 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:29:44,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:29:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:29:44,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:44,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:29:44,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:29:44,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:29:44,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 05:29:44,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:29:44,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 05:29:44,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:29:44,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 05:29:44,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 05:29:44,314 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 05:29:44,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476962252] [2020-10-27 05:29:44,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:29:44,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 05:29:44,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492422488] [2020-10-27 05:29:44,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 05:29:44,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:29:44,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 05:29:44,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 05:29:44,355 INFO L87 Difference]: Start difference. First operand 210 states. Second operand 6 states. [2020-10-27 05:29:44,884 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 05:29:46,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:29:46,322 INFO L93 Difference]: Finished difference Result 357 states and 596 transitions. [2020-10-27 05:29:46,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 05:29:46,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2020-10-27 05:29:46,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:29:46,337 INFO L225 Difference]: With dead ends: 357 [2020-10-27 05:29:46,337 INFO L226 Difference]: Without dead ends: 203 [2020-10-27 05:29:46,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-27 05:29:46,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-27 05:29:46,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-10-27 05:29:46,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-27 05:29:46,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 274 transitions. [2020-10-27 05:29:46,408 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 274 transitions. Word has length 112 [2020-10-27 05:29:46,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:29:46,409 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 274 transitions. [2020-10-27 05:29:46,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 05:29:46,409 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 274 transitions. [2020-10-27 05:29:46,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-27 05:29:46,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:29:46,413 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] [2020-10-27 05:29:46,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 05:29:46,413 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:29:46,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:29:46,414 INFO L82 PathProgramCache]: Analyzing trace with hash -598880468, now seen corresponding path program 1 times [2020-10-27 05:29:46,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:29:46,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287182544] [2020-10-27 05:29:46,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:29:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:29:46,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:46,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:46,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:46,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:46,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:46,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:47,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:47,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:47,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:47,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:47,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:48,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:48,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:51,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:29:51,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 05:29:51,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-27 05:29:51,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-27 05:29:51,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:29:51,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 05:29:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 05:29:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 05:29:51,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 05:29:52,104 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:29:52,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:29:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:29:52,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:52,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:29:52,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:29:52,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:29:52,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-27 05:29:52,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:29:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 05:29:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:29:52,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 05:29:52,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 05:29:52,227 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 05:29:52,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287182544] [2020-10-27 05:29:52,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:29:52,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 05:29:52,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243028931] [2020-10-27 05:29:52,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 05:29:52,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:29:52,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 05:29:52,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 05:29:52,233 INFO L87 Difference]: Start difference. First operand 203 states and 274 transitions. Second operand 6 states. [2020-10-27 05:29:52,625 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 05:29:53,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:29:53,618 INFO L93 Difference]: Finished difference Result 342 states and 482 transitions. [2020-10-27 05:29:53,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 05:29:53,619 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2020-10-27 05:29:53,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:29:53,622 INFO L225 Difference]: With dead ends: 342 [2020-10-27 05:29:53,622 INFO L226 Difference]: Without dead ends: 203 [2020-10-27 05:29:53,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-27 05:29:53,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-27 05:29:53,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-10-27 05:29:53,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-27 05:29:53,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 272 transitions. [2020-10-27 05:29:53,662 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 272 transitions. Word has length 113 [2020-10-27 05:29:53,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:29:53,663 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 272 transitions. [2020-10-27 05:29:53,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 05:29:53,663 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 272 transitions. [2020-10-27 05:29:53,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-27 05:29:53,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:29:53,667 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] [2020-10-27 05:29:53,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 05:29:53,670 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:29:53,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:29:53,671 INFO L82 PathProgramCache]: Analyzing trace with hash -288727799, now seen corresponding path program 1 times [2020-10-27 05:29:53,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:29:53,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386309267] [2020-10-27 05:29:53,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:29:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:29:53,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:53,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:53,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:53,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:53,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:54,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:54,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:54,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:54,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:58,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:29:58,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-27 05:29:58,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 05:29:58,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 05:29:58,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:29:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 05:29:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 05:29:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 05:29:58,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:29:59,164 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:29:59,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:29:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:29:59,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:29:59,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:29:59,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:29:59,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:29:59,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 05:29:59,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:29:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 05:29:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:29:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 05:29:59,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:29:59,255 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 05:29:59,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [386309267] [2020-10-27 05:29:59,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:29:59,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 05:29:59,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283982309] [2020-10-27 05:29:59,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 05:29:59,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:29:59,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 05:29:59,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 05:29:59,261 INFO L87 Difference]: Start difference. First operand 203 states and 272 transitions. Second operand 6 states. [2020-10-27 05:29:59,659 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 05:30:00,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:30:00,587 INFO L93 Difference]: Finished difference Result 322 states and 455 transitions. [2020-10-27 05:30:00,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 05:30:00,589 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2020-10-27 05:30:00,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:30:00,591 INFO L225 Difference]: With dead ends: 322 [2020-10-27 05:30:00,592 INFO L226 Difference]: Without dead ends: 203 [2020-10-27 05:30:00,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-27 05:30:00,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-27 05:30:00,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-10-27 05:30:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-27 05:30:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 270 transitions. [2020-10-27 05:30:00,623 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 270 transitions. Word has length 114 [2020-10-27 05:30:00,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:30:00,623 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 270 transitions. [2020-10-27 05:30:00,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 05:30:00,624 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 270 transitions. [2020-10-27 05:30:00,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-27 05:30:00,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:30:00,626 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] [2020-10-27 05:30:00,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 05:30:00,626 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:30:00,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:30:00,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1317194429, now seen corresponding path program 1 times [2020-10-27 05:30:00,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:30:00,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178736725] [2020-10-27 05:30:00,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:30:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:00,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:00,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:00,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:00,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:00,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:01,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:01,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:01,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:01,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:01,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:02,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:02,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:05,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:30:05,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 05:30:05,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-27 05:30:05,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 05:30:05,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:30:05,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 05:30:05,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 05:30:05,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 05:30:05,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 05:30:06,273 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:30:06,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:30:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:06,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:06,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:30:06,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:30:06,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:30:06,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 05:30:06,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:30:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 05:30:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:30:06,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 05:30:06,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 05:30:06,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 05:30:06,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178736725] [2020-10-27 05:30:06,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:30:06,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 05:30:06,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118423019] [2020-10-27 05:30:06,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 05:30:06,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:30:06,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 05:30:06,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 05:30:06,372 INFO L87 Difference]: Start difference. First operand 203 states and 270 transitions. Second operand 6 states. [2020-10-27 05:30:06,763 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 05:30:07,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:30:07,741 INFO L93 Difference]: Finished difference Result 330 states and 461 transitions. [2020-10-27 05:30:07,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 05:30:07,741 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2020-10-27 05:30:07,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:30:07,745 INFO L225 Difference]: With dead ends: 330 [2020-10-27 05:30:07,745 INFO L226 Difference]: Without dead ends: 203 [2020-10-27 05:30:07,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-27 05:30:07,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-27 05:30:07,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-10-27 05:30:07,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-27 05:30:07,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 268 transitions. [2020-10-27 05:30:07,791 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 268 transitions. Word has length 115 [2020-10-27 05:30:07,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:30:07,794 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 268 transitions. [2020-10-27 05:30:07,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 05:30:07,794 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 268 transitions. [2020-10-27 05:30:07,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-27 05:30:07,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:30:07,799 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] [2020-10-27 05:30:07,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 05:30:07,799 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:30:07,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:30:07,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1256546903, now seen corresponding path program 1 times [2020-10-27 05:30:07,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:30:07,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127414165] [2020-10-27 05:30:07,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:30:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:07,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:07,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:07,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:08,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:08,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:08,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:09,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:09,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:12,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:30:12,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-27 05:30:12,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 05:30:12,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-27 05:30:12,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:30:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 05:30:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 05:30:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 05:30:12,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:30:13,363 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:30:13,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:30:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:13,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:13,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:30:13,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:30:13,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:30:13,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 05:30:13,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:30:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 05:30:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:30:13,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 05:30:13,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:30:13,449 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 05:30:13,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127414165] [2020-10-27 05:30:13,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:30:13,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 05:30:13,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265271144] [2020-10-27 05:30:13,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 05:30:13,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:30:13,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 05:30:13,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 05:30:13,452 INFO L87 Difference]: Start difference. First operand 203 states and 268 transitions. Second operand 6 states. [2020-10-27 05:30:13,868 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-27 05:30:14,931 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 05:30:15,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:30:15,413 INFO L93 Difference]: Finished difference Result 426 states and 603 transitions. [2020-10-27 05:30:15,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 05:30:15,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2020-10-27 05:30:15,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:30:15,416 INFO L225 Difference]: With dead ends: 426 [2020-10-27 05:30:15,416 INFO L226 Difference]: Without dead ends: 295 [2020-10-27 05:30:15,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-27 05:30:15,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-27 05:30:15,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 292. [2020-10-27 05:30:15,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-27 05:30:15,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 405 transitions. [2020-10-27 05:30:15,447 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 405 transitions. Word has length 116 [2020-10-27 05:30:15,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:30:15,448 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 405 transitions. [2020-10-27 05:30:15,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 05:30:15,448 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 405 transitions. [2020-10-27 05:30:15,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-27 05:30:15,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:30:15,450 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] [2020-10-27 05:30:15,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 05:30:15,450 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:30:15,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:30:15,451 INFO L82 PathProgramCache]: Analyzing trace with hash -2036978290, now seen corresponding path program 1 times [2020-10-27 05:30:15,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:30:15,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545822703] [2020-10-27 05:30:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:30:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:15,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:15,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:15,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:15,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:15,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:15,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:17,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:17,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:17,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:18,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:20,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:30:20,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-27 05:30:20,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 05:30:20,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-27 05:30:20,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:30:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 05:30:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 05:30:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 05:30:20,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:30:20,915 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:30:20,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:30:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:20,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:20,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:30:20,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:30:20,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:30:20,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 05:30:20,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:30:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 05:30:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:30:20,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 05:30:20,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:30:20,993 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 05:30:20,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545822703] [2020-10-27 05:30:20,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:30:20,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 05:30:20,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851720878] [2020-10-27 05:30:20,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 05:30:20,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:30:20,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 05:30:20,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 05:30:20,996 INFO L87 Difference]: Start difference. First operand 292 states and 405 transitions. Second operand 6 states. [2020-10-27 05:30:21,429 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-27 05:30:22,441 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 05:30:22,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:30:22,875 INFO L93 Difference]: Finished difference Result 664 states and 973 transitions. [2020-10-27 05:30:22,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 05:30:22,876 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2020-10-27 05:30:22,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:30:22,879 INFO L225 Difference]: With dead ends: 664 [2020-10-27 05:30:22,879 INFO L226 Difference]: Without dead ends: 452 [2020-10-27 05:30:22,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-27 05:30:22,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2020-10-27 05:30:22,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 449. [2020-10-27 05:30:22,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2020-10-27 05:30:22,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 645 transitions. [2020-10-27 05:30:22,919 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 645 transitions. Word has length 117 [2020-10-27 05:30:22,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:30:22,919 INFO L481 AbstractCegarLoop]: Abstraction has 449 states and 645 transitions. [2020-10-27 05:30:22,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 05:30:22,919 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 645 transitions. [2020-10-27 05:30:22,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-27 05:30:22,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:30:22,921 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] [2020-10-27 05:30:22,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 05:30:22,921 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:30:22,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:30:22,922 INFO L82 PathProgramCache]: Analyzing trace with hash 227553191, now seen corresponding path program 1 times [2020-10-27 05:30:22,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:30:22,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961138480] [2020-10-27 05:30:22,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:30:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:22,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:23,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:23,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:23,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:23,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:23,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:23,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:26,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:27,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:27,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:27,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:27,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:30:27,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 05:30:27,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-27 05:30:27,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-27 05:30:27,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:30:27,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 05:30:27,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 05:30:27,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-27 05:30:27,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:30:28,365 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:30:28,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:30:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:28,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:28,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:30:28,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:30:28,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:30:28,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 05:30:28,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:30:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 05:30:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:30:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 05:30:28,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:30:28,429 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 05:30:28,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961138480] [2020-10-27 05:30:28,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:30:28,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 05:30:28,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612424170] [2020-10-27 05:30:28,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 05:30:28,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:30:28,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 05:30:28,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 05:30:28,431 INFO L87 Difference]: Start difference. First operand 449 states and 645 transitions. Second operand 6 states. [2020-10-27 05:30:28,894 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-27 05:30:29,956 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 05:30:30,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:30:30,405 INFO L93 Difference]: Finished difference Result 1188 states and 1767 transitions. [2020-10-27 05:30:30,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 05:30:30,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2020-10-27 05:30:30,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:30:30,413 INFO L225 Difference]: With dead ends: 1188 [2020-10-27 05:30:30,413 INFO L226 Difference]: Without dead ends: 799 [2020-10-27 05:30:30,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-27 05:30:30,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2020-10-27 05:30:30,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 796. [2020-10-27 05:30:30,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 796 states. [2020-10-27 05:30:30,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1176 transitions. [2020-10-27 05:30:30,479 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1176 transitions. Word has length 118 [2020-10-27 05:30:30,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:30:30,480 INFO L481 AbstractCegarLoop]: Abstraction has 796 states and 1176 transitions. [2020-10-27 05:30:30,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 05:30:30,480 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1176 transitions. [2020-10-27 05:30:30,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-27 05:30:30,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:30:30,482 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] [2020-10-27 05:30:30,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 05:30:30,482 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:30:30,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:30:30,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1224673465, now seen corresponding path program 1 times [2020-10-27 05:30:30,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:30:30,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443121795] [2020-10-27 05:30:30,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:30:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:30,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:30,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:30,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:30,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:30,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:31,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:31,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:32,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:35,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:30:35,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 05:30:35,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 05:30:35,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 05:30:35,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:30:35,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 05:30:35,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 05:30:35,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-27 05:30:35,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:30:36,075 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:30:36,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:30:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:36,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:36,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:30:36,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:30:36,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:30:36,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 05:30:36,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:30:36,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 05:30:36,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:30:36,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 05:30:36,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:30:36,186 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 05:30:36,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443121795] [2020-10-27 05:30:36,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:30:36,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 05:30:36,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391839881] [2020-10-27 05:30:36,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 05:30:36,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:30:36,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 05:30:36,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 05:30:36,189 INFO L87 Difference]: Start difference. First operand 796 states and 1176 transitions. Second operand 10 states. [2020-10-27 05:30:36,621 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 05:30:37,881 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 05:30:38,330 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-27 05:30:38,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:30:38,945 INFO L93 Difference]: Finished difference Result 2081 states and 3152 transitions. [2020-10-27 05:30:38,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 05:30:38,946 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 119 [2020-10-27 05:30:38,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:30:38,955 INFO L225 Difference]: With dead ends: 2081 [2020-10-27 05:30:38,955 INFO L226 Difference]: Without dead ends: 1419 [2020-10-27 05:30:38,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-10-27 05:30:38,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2020-10-27 05:30:39,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 796. [2020-10-27 05:30:39,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 796 states. [2020-10-27 05:30:39,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1175 transitions. [2020-10-27 05:30:39,068 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1175 transitions. Word has length 119 [2020-10-27 05:30:39,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:30:39,069 INFO L481 AbstractCegarLoop]: Abstraction has 796 states and 1175 transitions. [2020-10-27 05:30:39,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 05:30:39,069 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1175 transitions. [2020-10-27 05:30:39,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-27 05:30:39,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:30:39,071 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] [2020-10-27 05:30:39,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 05:30:39,071 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:30:39,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:30:39,072 INFO L82 PathProgramCache]: Analyzing trace with hash 85612118, now seen corresponding path program 1 times [2020-10-27 05:30:39,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:30:39,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621566950] [2020-10-27 05:30:39,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:30:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:39,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:39,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:39,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:39,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:39,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:40,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:40,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:42,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:42,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:42,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:42,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:43,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:43,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:43,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:43,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:44,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:30:44,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-27 05:30:44,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-27 05:30:44,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-27 05:30:44,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:30:44,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 05:30:44,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 05:30:44,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 05:30:44,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:30:44,670 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:30:44,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:30:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:44,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:44,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:30:44,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:30:44,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:30:44,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 05:30:44,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:30:44,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 05:30:44,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:30:44,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 05:30:44,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:30:44,743 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 05:30:44,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621566950] [2020-10-27 05:30:44,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:30:44,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 05:30:44,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627336658] [2020-10-27 05:30:44,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 05:30:44,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:30:44,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 05:30:44,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-27 05:30:44,745 INFO L87 Difference]: Start difference. First operand 796 states and 1175 transitions. Second operand 11 states. [2020-10-27 05:30:45,228 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-27 05:30:46,845 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 05:30:47,353 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-27 05:30:48,955 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 05:30:49,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:30:49,061 INFO L93 Difference]: Finished difference Result 2429 states and 3681 transitions. [2020-10-27 05:30:49,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 05:30:49,062 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 120 [2020-10-27 05:30:49,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:30:49,071 INFO L225 Difference]: With dead ends: 2429 [2020-10-27 05:30:49,071 INFO L226 Difference]: Without dead ends: 1738 [2020-10-27 05:30:49,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=184, Invalid=628, Unknown=0, NotChecked=0, Total=812 [2020-10-27 05:30:49,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2020-10-27 05:30:49,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 796. [2020-10-27 05:30:49,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 796 states. [2020-10-27 05:30:49,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1173 transitions. [2020-10-27 05:30:49,199 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1173 transitions. Word has length 120 [2020-10-27 05:30:49,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:30:49,199 INFO L481 AbstractCegarLoop]: Abstraction has 796 states and 1173 transitions. [2020-10-27 05:30:49,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 05:30:49,199 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1173 transitions. [2020-10-27 05:30:49,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-27 05:30:49,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:30:49,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 05:30:49,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 05:30:49,202 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:30:49,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:30:49,202 INFO L82 PathProgramCache]: Analyzing trace with hash -950329181, now seen corresponding path program 1 times [2020-10-27 05:30:49,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:30:49,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187418919] [2020-10-27 05:30:49,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:30:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:49,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:49,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:49,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:49,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:49,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:49,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:50,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:50,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:50,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:51,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:51,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:51,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:51,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:52,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:52,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:53,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:53,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:54,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:30:54,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 05:30:54,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-27 05:30:54,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 05:30:54,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:30:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 05:30:54,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 05:30:54,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 05:30:54,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:30:54,773 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:30:54,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:30:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:54,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:54,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:30:54,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:30:54,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:30:54,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 05:30:54,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:30:54,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 05:30:54,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:30:54,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 05:30:54,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:30:54,846 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 05:30:54,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187418919] [2020-10-27 05:30:54,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:30:54,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 05:30:54,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247212321] [2020-10-27 05:30:54,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 05:30:54,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:30:54,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 05:30:54,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-27 05:30:54,849 INFO L87 Difference]: Start difference. First operand 796 states and 1173 transitions. Second operand 11 states. [2020-10-27 05:30:55,339 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-27 05:30:56,804 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 05:30:57,222 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 05:30:57,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:30:57,950 INFO L93 Difference]: Finished difference Result 2090 states and 3149 transitions. [2020-10-27 05:30:57,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 05:30:57,951 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 121 [2020-10-27 05:30:57,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:30:57,959 INFO L225 Difference]: With dead ends: 2090 [2020-10-27 05:30:57,959 INFO L226 Difference]: Without dead ends: 1463 [2020-10-27 05:30:57,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-10-27 05:30:57,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2020-10-27 05:30:58,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 796. [2020-10-27 05:30:58,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 796 states. [2020-10-27 05:30:58,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1169 transitions. [2020-10-27 05:30:58,080 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1169 transitions. Word has length 121 [2020-10-27 05:30:58,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:30:58,080 INFO L481 AbstractCegarLoop]: Abstraction has 796 states and 1169 transitions. [2020-10-27 05:30:58,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 05:30:58,080 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1169 transitions. [2020-10-27 05:30:58,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-27 05:30:58,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:30:58,083 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] [2020-10-27 05:30:58,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 05:30:58,083 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:30:58,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:30:58,084 INFO L82 PathProgramCache]: Analyzing trace with hash -439209354, now seen corresponding path program 1 times [2020-10-27 05:30:58,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:30:58,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368236466] [2020-10-27 05:30:58,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:30:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:30:58,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:58,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:58,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:58,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:58,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:58,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:58,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:59,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:59,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:59,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:30:59,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:00,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:00,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:01,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:03,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:31:03,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 05:31:03,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-27 05:31:03,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 05:31:03,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:31:03,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 05:31:03,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 05:31:03,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-27 05:31:03,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:31:03,684 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:31:03,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:31:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:31:03,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:03,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:31:03,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:31:03,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:31:03,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 05:31:03,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:31:03,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 05:31:03,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:31:03,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 05:31:03,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:31:03,780 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 05:31:03,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368236466] [2020-10-27 05:31:03,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:31:03,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 05:31:03,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466856051] [2020-10-27 05:31:03,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 05:31:03,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:31:03,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 05:31:03,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-27 05:31:03,783 INFO L87 Difference]: Start difference. First operand 796 states and 1169 transitions. Second operand 11 states. [2020-10-27 05:31:04,277 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-27 05:31:05,777 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 05:31:06,241 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-27 05:31:07,949 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 212 [2020-10-27 05:31:08,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:31:08,160 INFO L93 Difference]: Finished difference Result 2389 states and 3607 transitions. [2020-10-27 05:31:08,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 05:31:08,160 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 122 [2020-10-27 05:31:08,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:31:08,169 INFO L225 Difference]: With dead ends: 2389 [2020-10-27 05:31:08,170 INFO L226 Difference]: Without dead ends: 1738 [2020-10-27 05:31:08,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2020-10-27 05:31:08,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2020-10-27 05:31:08,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 796. [2020-10-27 05:31:08,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 796 states. [2020-10-27 05:31:08,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1165 transitions. [2020-10-27 05:31:08,307 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1165 transitions. Word has length 122 [2020-10-27 05:31:08,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:31:08,308 INFO L481 AbstractCegarLoop]: Abstraction has 796 states and 1165 transitions. [2020-10-27 05:31:08,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 05:31:08,308 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1165 transitions. [2020-10-27 05:31:08,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-27 05:31:08,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:31:08,310 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] [2020-10-27 05:31:08,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 05:31:08,310 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:31:08,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:31:08,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1100655373, now seen corresponding path program 1 times [2020-10-27 05:31:08,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:31:08,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203020322] [2020-10-27 05:31:08,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:31:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:31:08,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:08,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:08,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:08,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:08,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:08,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:08,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:09,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:09,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:10,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:13,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:31:13,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 05:31:13,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 05:31:13,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-27 05:31:13,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:31:13,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 05:31:13,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 05:31:13,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-27 05:31:13,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:31:13,896 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:31:13,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:31:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:31:13,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:13,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:31:13,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:31:13,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:31:13,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 05:31:13,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:31:13,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 05:31:13,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:31:13,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 05:31:13,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:31:13,960 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 05:31:13,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203020322] [2020-10-27 05:31:13,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:31:13,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 05:31:13,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066428664] [2020-10-27 05:31:13,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 05:31:13,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:31:13,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 05:31:13,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 05:31:13,962 INFO L87 Difference]: Start difference. First operand 796 states and 1165 transitions. Second operand 11 states. [2020-10-27 05:31:14,451 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-27 05:31:16,005 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 05:31:16,394 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 05:31:17,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:31:17,454 INFO L93 Difference]: Finished difference Result 2184 states and 3273 transitions. [2020-10-27 05:31:17,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 05:31:17,455 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 123 [2020-10-27 05:31:17,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:31:17,462 INFO L225 Difference]: With dead ends: 2184 [2020-10-27 05:31:17,462 INFO L226 Difference]: Without dead ends: 1503 [2020-10-27 05:31:17,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2020-10-27 05:31:17,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2020-10-27 05:31:17,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 796. [2020-10-27 05:31:17,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 796 states. [2020-10-27 05:31:17,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1163 transitions. [2020-10-27 05:31:17,610 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1163 transitions. Word has length 123 [2020-10-27 05:31:17,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:31:17,611 INFO L481 AbstractCegarLoop]: Abstraction has 796 states and 1163 transitions. [2020-10-27 05:31:17,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 05:31:17,611 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1163 transitions. [2020-10-27 05:31:17,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-27 05:31:17,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:31:17,612 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] [2020-10-27 05:31:17,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 05:31:17,613 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:31:17,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:31:17,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1747369622, now seen corresponding path program 1 times [2020-10-27 05:31:17,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:31:17,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980106222] [2020-10-27 05:31:17,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:31:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:31:17,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:17,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:17,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:18,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:18,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:18,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:19,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:22,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:22,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:22,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:31:22,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 05:31:22,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 05:31:22,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 05:31:22,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:31:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 05:31:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 05:31:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 05:31:22,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:31:23,323 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:31:23,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:31:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:31:23,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:23,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:31:23,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:31:23,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:31:23,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 05:31:23,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:31:23,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 05:31:23,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:31:23,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 05:31:23,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:31:23,426 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 05:31:23,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980106222] [2020-10-27 05:31:23,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:31:23,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 05:31:23,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004748609] [2020-10-27 05:31:23,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 05:31:23,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:31:23,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 05:31:23,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-27 05:31:23,428 INFO L87 Difference]: Start difference. First operand 796 states and 1163 transitions. Second operand 13 states. [2020-10-27 05:31:23,579 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2020-10-27 05:31:24,666 WARN L193 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 228 [2020-10-27 05:31:25,108 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2020-10-27 05:31:25,691 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2020-10-27 05:31:25,856 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2020-10-27 05:31:26,662 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-10-27 05:31:27,727 WARN L193 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 227 [2020-10-27 05:31:28,663 WARN L193 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 226 [2020-10-27 05:31:29,391 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2020-10-27 05:31:29,704 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2020-10-27 05:31:29,997 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2020-10-27 05:31:33,096 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-10-27 05:31:34,296 WARN L193 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 221 [2020-10-27 05:31:35,250 WARN L193 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 220 [2020-10-27 05:31:35,754 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2020-10-27 05:31:36,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:31:36,134 INFO L93 Difference]: Finished difference Result 9464 states and 14185 transitions. [2020-10-27 05:31:36,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-27 05:31:36,134 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 124 [2020-10-27 05:31:36,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:31:36,177 INFO L225 Difference]: With dead ends: 9464 [2020-10-27 05:31:36,177 INFO L226 Difference]: Without dead ends: 8817 [2020-10-27 05:31:36,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=402, Invalid=1668, Unknown=0, NotChecked=0, Total=2070 [2020-10-27 05:31:36,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8817 states. [2020-10-27 05:31:36,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8817 to 802. [2020-10-27 05:31:36,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 802 states. [2020-10-27 05:31:36,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1169 transitions. [2020-10-27 05:31:36,478 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1169 transitions. Word has length 124 [2020-10-27 05:31:36,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:31:36,478 INFO L481 AbstractCegarLoop]: Abstraction has 802 states and 1169 transitions. [2020-10-27 05:31:36,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 05:31:36,478 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1169 transitions. [2020-10-27 05:31:36,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-27 05:31:36,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:31:36,480 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] [2020-10-27 05:31:36,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 05:31:36,480 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:31:36,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:31:36,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1141051273, now seen corresponding path program 1 times [2020-10-27 05:31:36,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:31:36,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232307178] [2020-10-27 05:31:36,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:31:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:31:36,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:36,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:36,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:37,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:37,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:37,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:37,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:41,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:31:41,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 05:31:41,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 05:31:41,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 05:31:41,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:31:41,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 05:31:41,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 05:31:41,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 05:31:41,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:31:42,184 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:31:42,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:31:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:31:42,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:42,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:31:42,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:31:42,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:31:42,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 05:31:42,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:31:42,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 05:31:42,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:31:42,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 05:31:42,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:31:42,254 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 05:31:42,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232307178] [2020-10-27 05:31:42,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:31:42,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 05:31:42,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382743468] [2020-10-27 05:31:42,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 05:31:42,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:31:42,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 05:31:42,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-27 05:31:42,256 INFO L87 Difference]: Start difference. First operand 802 states and 1169 transitions. Second operand 13 states. [2020-10-27 05:31:42,757 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-27 05:31:43,726 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-10-27 05:31:45,311 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-27 05:31:45,837 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-27 05:31:49,062 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-27 05:31:49,500 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-27 05:31:50,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:31:50,427 INFO L93 Difference]: Finished difference Result 4798 states and 7209 transitions. [2020-10-27 05:31:50,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-27 05:31:50,427 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-10-27 05:31:50,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:31:50,444 INFO L225 Difference]: With dead ends: 4798 [2020-10-27 05:31:50,445 INFO L226 Difference]: Without dead ends: 4175 [2020-10-27 05:31:50,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=397, Invalid=1409, Unknown=0, NotChecked=0, Total=1806 [2020-10-27 05:31:50,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4175 states. [2020-10-27 05:31:50,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4175 to 830. [2020-10-27 05:31:50,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2020-10-27 05:31:50,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1205 transitions. [2020-10-27 05:31:50,770 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1205 transitions. Word has length 125 [2020-10-27 05:31:50,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:31:50,770 INFO L481 AbstractCegarLoop]: Abstraction has 830 states and 1205 transitions. [2020-10-27 05:31:50,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 05:31:50,770 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1205 transitions. [2020-10-27 05:31:50,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-27 05:31:50,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:31:50,772 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] [2020-10-27 05:31:50,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 05:31:50,772 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:31:50,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:31:50,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1390713661, now seen corresponding path program 1 times [2020-10-27 05:31:50,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:31:50,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297927138] [2020-10-27 05:31:50,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:31:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:31:50,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:50,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:50,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:51,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:52,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:31:55,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:31:55,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-27 05:31:55,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 05:31:55,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 05:31:55,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:31:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-27 05:31:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 05:31:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-27 05:31:55,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:31:56,939 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2020-10-27 05:31:57,299 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 43 [2020-10-27 05:31:57,592 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2020-10-27 05:31:57,820 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2020-10-27 05:31:58,257 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 76 [2020-10-27 05:31:58,429 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2020-10-27 05:31:58,732 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 70 [2020-10-27 05:31:59,021 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2020-10-27 05:31:59,375 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2020-10-27 05:31:59,609 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2020-10-27 05:31:59,924 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2020-10-27 05:32:00,167 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2020-10-27 05:32:00,494 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2020-10-27 05:32:00,780 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2020-10-27 05:32:01,117 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2020-10-27 05:32:03,904 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 05:32:03,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 05:32:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:32:03,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:32:03,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:32:03,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 05:32:03,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 05:32:03,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 05:32:03,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:32:03,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 05:32:03,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 05:32:03,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 05:32:03,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 05:32:04,264 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 05:32:04,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297927138] [2020-10-27 05:32:04,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 05:32:04,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2020-10-27 05:32:04,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429139742] [2020-10-27 05:32:04,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-27 05:32:04,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 05:32:04,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-27 05:32:04,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1276, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 05:32:04,267 INFO L87 Difference]: Start difference. First operand 830 states and 1205 transitions. Second operand 38 states. [2020-10-27 05:32:05,656 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 223 DAG size of output: 207 [2020-10-27 05:32:08,521 WARN L193 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 397 DAG size of output: 381 [2020-10-27 05:32:09,110 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2020-10-27 05:32:09,401 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-10-27 05:32:09,705 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-10-27 05:32:10,016 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-10-27 05:32:11,336 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2020-10-27 05:32:11,809 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-27 05:32:12,555 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2020-10-27 05:32:13,318 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 126 [2020-10-27 05:32:14,332 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 144 [2020-10-27 05:32:15,547 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 207 DAG size of output: 184 [2020-10-27 05:32:17,204 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 240 DAG size of output: 207 [2020-10-27 05:32:18,969 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 260 DAG size of output: 224 [2020-10-27 05:32:21,013 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 287 DAG size of output: 251 [2020-10-27 05:32:23,269 WARN L193 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 305 DAG size of output: 268 [2020-10-27 05:32:25,967 WARN L193 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 329 DAG size of output: 293 [2020-10-27 05:32:28,711 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 345 DAG size of output: 309 [2020-10-27 05:32:32,051 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 371 DAG size of output: 335 [2020-10-27 05:32:32,620 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2020-10-27 05:32:33,210 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2020-10-27 05:32:33,842 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-10-27 05:32:34,218 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-27 05:32:34,658 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-27 05:32:35,041 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-10-27 05:32:35,773 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2020-10-27 05:32:37,970 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2020-10-27 05:32:38,777 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2020-10-27 05:32:39,559 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-10-27 05:32:40,394 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-10-27 05:32:43,971 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 232 [2020-10-27 05:32:44,902 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-10-27 05:32:45,892 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-10-27 05:32:47,694 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 237 DAG size of output: 234 [2020-10-27 05:32:49,142 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 242 DAG size of output: 236 [2020-10-27 05:32:51,146 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 238 DAG size of output: 235 [2020-10-27 05:32:51,857 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-10-27 05:33:09,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 05:33:09,526 INFO L93 Difference]: Finished difference Result 6017 states and 9065 transitions. [2020-10-27 05:33:09,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-10-27 05:33:09,527 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 126 [2020-10-27 05:33:09,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 05:33:09,550 INFO L225 Difference]: With dead ends: 6017 [2020-10-27 05:33:09,551 INFO L226 Difference]: Without dead ends: 5394 [2020-10-27 05:33:09,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1057 ImplicationChecksByTransitivity, 43.1s TimeCoverageRelationStatistics Valid=821, Invalid=5185, Unknown=0, NotChecked=0, Total=6006 [2020-10-27 05:33:09,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5394 states. [2020-10-27 05:33:09,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5394 to 891. [2020-10-27 05:33:09,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-10-27 05:33:09,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1284 transitions. [2020-10-27 05:33:09,904 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1284 transitions. Word has length 126 [2020-10-27 05:33:09,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 05:33:09,904 INFO L481 AbstractCegarLoop]: Abstraction has 891 states and 1284 transitions. [2020-10-27 05:33:09,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-27 05:33:09,904 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1284 transitions. [2020-10-27 05:33:09,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-27 05:33:09,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 05:33:09,906 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] [2020-10-27 05:33:09,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 05:33:09,906 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 05:33:09,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 05:33:09,906 INFO L82 PathProgramCache]: Analyzing trace with hash 2016095101, now seen corresponding path program 1 times [2020-10-27 05:33:09,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 05:33:09,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496283363] [2020-10-27 05:33:09,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 05:33:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 05:33:09,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:33:09,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:33:10,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:33:10,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 05:33:11,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 05:33:11,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-27 05:33:11,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 05:33:11,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1468 [2020-10-27 05:33:11,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 05:33:11,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 05:33:11,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 05:33:11,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-27 05:33:11,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0