/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/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 04:35:56,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 04:35:56,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 04:35:56,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 04:35:56,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 04:35:56,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 04:35:56,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 04:35:56,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 04:35:56,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 04:35:56,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 04:35:56,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 04:35:56,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 04:35:56,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 04:35:56,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 04:35:56,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 04:35:56,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 04:35:56,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 04:35:56,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 04:35:56,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 04:35:56,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 04:35:56,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 04:35:56,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 04:35:56,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 04:35:56,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 04:35:56,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 04:35:56,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 04:35:56,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 04:35:56,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 04:35:56,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 04:35:56,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 04:35:56,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 04:35:56,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 04:35:56,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 04:35:56,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 04:35:56,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 04:35:56,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 04:35:56,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 04:35:56,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 04:35:56,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 04:35:56,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 04:35:56,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 04:35:56,206 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 04:35:56,263 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 04:35:56,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 04:35:56,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 04:35:56,268 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 04:35:56,268 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 04:35:56,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 04:35:56,268 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 04:35:56,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 04:35:56,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 04:35:56,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 04:35:56,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 04:35:56,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 04:35:56,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 04:35:56,271 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 04:35:56,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 04:35:56,271 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 04:35:56,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 04:35:56,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 04:35:56,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 04:35:56,272 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 04:35:56,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 04:35:56,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:35:56,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 04:35:56,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 04:35:56,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 04:35:56,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 04:35:56,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 04:35:56,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 04:35:56,274 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 04:35:56,274 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 04:35:56,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 04:35:56,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 04:35:56,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 04:35:56,828 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 04:35:56,828 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 04:35:56,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c [2020-10-27 04:35:56,920 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e17bc8db/93c96936227a44dd853d70e5501b76d9/FLAG6b3561a50 [2020-10-27 04:35:57,520 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 04:35:57,520 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c [2020-10-27 04:35:57,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e17bc8db/93c96936227a44dd853d70e5501b76d9/FLAG6b3561a50 [2020-10-27 04:35:57,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e17bc8db/93c96936227a44dd853d70e5501b76d9 [2020-10-27 04:35:57,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 04:35:57,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 04:35:57,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 04:35:57,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 04:35:57,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 04:35:57,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:35:57" (1/1) ... [2020-10-27 04:35:57,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bfac43b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:35:57, skipping insertion in model container [2020-10-27 04:35:57,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:35:57" (1/1) ... [2020-10-27 04:35:57,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 04:35:57,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 04:35:58,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:35:58,301 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 04:35:58,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:35:58,406 INFO L208 MainTranslator]: Completed translation [2020-10-27 04:35:58,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:35:58 WrapperNode [2020-10-27 04:35:58,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 04:35:58,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 04:35:58,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 04:35:58,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 04:35:58,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:35:58" (1/1) ... [2020-10-27 04:35:58,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:35:58" (1/1) ... [2020-10-27 04:35:58,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:35:58" (1/1) ... [2020-10-27 04:35:58,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:35:58" (1/1) ... [2020-10-27 04:35:58,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:35:58" (1/1) ... [2020-10-27 04:35:58,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:35:58" (1/1) ... [2020-10-27 04:35:58,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:35:58" (1/1) ... [2020-10-27 04:35:58,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 04:35:58,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 04:35:58,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 04:35:58,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 04:35:58,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:35:58" (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 04:35:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 04:35:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 04:35:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 04:35:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 04:35:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 04:35:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 04:35:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 04:35:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 04:35:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 04:35:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 04:35:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 04:35:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 04:35:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 04:35:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 04:35:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 04:35:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 04:35:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 04:35:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 04:35:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 04:35:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 04:35:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 04:35:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 04:35:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 04:35:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 04:35:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 04:35:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 04:35:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 04:35:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 04:35:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 04:35:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 04:35:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 04:35:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 04:35:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 04:35:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 04:35:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 04:35:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 04:35:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 04:35:59,699 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 04:35:59,699 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 04:35:59,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:35:59 BoogieIcfgContainer [2020-10-27 04:35:59,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 04:35:59,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 04:35:59,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 04:35:59,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 04:35:59,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:35:57" (1/3) ... [2020-10-27 04:35:59,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9f323a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:35:59, skipping insertion in model container [2020-10-27 04:35:59,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:35:58" (2/3) ... [2020-10-27 04:35:59,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9f323a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:35:59, skipping insertion in model container [2020-10-27 04:35:59,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:35:59" (3/3) ... [2020-10-27 04:35:59,712 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c [2020-10-27 04:35:59,727 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 04:35:59,732 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 04:35:59,745 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 04:35:59,772 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 04:35:59,772 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 04:35:59,772 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 04:35:59,772 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 04:35:59,772 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 04:35:59,773 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 04:35:59,773 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 04:35:59,773 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 04:35:59,795 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2020-10-27 04:35:59,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 04:35:59,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:35:59,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:35:59,808 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:35:59,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:35:59,815 INFO L82 PathProgramCache]: Analyzing trace with hash -924276508, now seen corresponding path program 1 times [2020-10-27 04:35:59,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:35:59,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290736177] [2020-10-27 04:35:59,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:36:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:00,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:00,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:00,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 04:36:00,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:00,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-10-27 04:36:00,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:00,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:00,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 04:36:00,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:00,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 04:36:00,932 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 04:36:00,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:36:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:00,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:00,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:00,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:36:00,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:00,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 04:36:00,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:36:00,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:00,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:00,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:36:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:00,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:01,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:01,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:36:01,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:01,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:36:01,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:01,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:01,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:36:01,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:01,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:01,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 04:36:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:01,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:01,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:01,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:36:01,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:01,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:36:01,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:01,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:01,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:36:01,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:01,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:01,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 04:36:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:01,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:01,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:01,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:01,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:01,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:36:01,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:01,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:01,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:01,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:01,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:36:01,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 04:36:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:01,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:01,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:01,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:01,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:01,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:36:01,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:01,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:01,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:01,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:01,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:01,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 04:36:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:01,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:01,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:01,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:01,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:01,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:36:01,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:01,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:01,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 04:36:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:01,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:01,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:01,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:01,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:36:01,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:01,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:36:01,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 04:36:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:01,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:01,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:01,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:01,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:01,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:36:01,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:01,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:01,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:01,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:01,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:01,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 04:36:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:01,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:01,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:01,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:36:01,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:01,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:36:01,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:01,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:01,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:36:01,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:01,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:01,322 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 04:36:01,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290736177] [2020-10-27 04:36:01,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:36:01,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 04:36:01,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111255598] [2020-10-27 04:36:01,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 04:36:01,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:36:01,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 04:36:01,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 04:36:01,357 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 8 states. [2020-10-27 04:36:02,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:36:02,810 INFO L93 Difference]: Finished difference Result 281 states and 416 transitions. [2020-10-27 04:36:02,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 04:36:02,812 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-27 04:36:02,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:36:02,829 INFO L225 Difference]: With dead ends: 281 [2020-10-27 04:36:02,831 INFO L226 Difference]: Without dead ends: 160 [2020-10-27 04:36:02,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:36:02,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-27 04:36:02,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 155. [2020-10-27 04:36:02,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-27 04:36:02,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 235 transitions. [2020-10-27 04:36:02,938 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 235 transitions. Word has length 68 [2020-10-27 04:36:02,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:36:02,939 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 235 transitions. [2020-10-27 04:36:02,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 04:36:02,939 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 235 transitions. [2020-10-27 04:36:02,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 04:36:02,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:36:02,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:36:02,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 04:36:02,953 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:36:02,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:36:02,954 INFO L82 PathProgramCache]: Analyzing trace with hash -480375834, now seen corresponding path program 1 times [2020-10-27 04:36:02,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:36:02,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70999957] [2020-10-27 04:36:02,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:36:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:03,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:03,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:03,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 04:36:03,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:03,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 757 [2020-10-27 04:36:03,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:03,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:36:03,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 04:36:03,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:36:03,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:04,240 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 04:36:04,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:36:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:04,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:04,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:04,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:36:04,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:04,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 04:36:04,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:04,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:04,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:36:04,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:04,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:36:04,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:36:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:04,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:04,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:04,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:36:04,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:04,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:36:04,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:04,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:36:04,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:36:04,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:36:04,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 04:36:04,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 04:36:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:04,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:04,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:04,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:36:04,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:04,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:36:04,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:04,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:36:04,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:36:04,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:36:04,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:04,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 04:36:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:04,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:04,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:04,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:04,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:04,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:36:04,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:04,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:04,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:04,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:04,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:04,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 04:36:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:04,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:04,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:04,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:04,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:04,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:36:04,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:04,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:04,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:04,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:04,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:04,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 04:36:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:04,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:04,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:04,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:04,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:04,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:36:04,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:04,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:04,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:04,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:04,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:04,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 04:36:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:04,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:04,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:04,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:04,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:04,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:36:04,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:04,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:04,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:04,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:04,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:04,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 04:36:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:04,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:04,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:04,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:04,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:04,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:36:04,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:04,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:04,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:04,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:04,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:04,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 04:36:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:04,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:04,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:04,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:36:04,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:04,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:36:04,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:04,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:04,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:36:04,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:04,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:04,651 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 04:36:04,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70999957] [2020-10-27 04:36:04,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:36:04,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 04:36:04,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068107832] [2020-10-27 04:36:04,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 04:36:04,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:36:04,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 04:36:04,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 04:36:04,658 INFO L87 Difference]: Start difference. First operand 155 states and 235 transitions. Second operand 14 states. [2020-10-27 04:36:05,043 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 04:36:05,373 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 04:36:05,817 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 04:36:06,133 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 04:36:08,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:36:08,511 INFO L93 Difference]: Finished difference Result 282 states and 418 transitions. [2020-10-27 04:36:08,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 04:36:08,512 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-27 04:36:08,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:36:08,518 INFO L225 Difference]: With dead ends: 282 [2020-10-27 04:36:08,519 INFO L226 Difference]: Without dead ends: 171 [2020-10-27 04:36:08,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:36:08,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-27 04:36:08,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 155. [2020-10-27 04:36:08,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-27 04:36:08,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 203 transitions. [2020-10-27 04:36:08,572 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 203 transitions. Word has length 68 [2020-10-27 04:36:08,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:36:08,572 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 203 transitions. [2020-10-27 04:36:08,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 04:36:08,573 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 203 transitions. [2020-10-27 04:36:08,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-27 04:36:08,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:36:08,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:36:08,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 04:36:08,576 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:36:08,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:36:08,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1756922108, now seen corresponding path program 1 times [2020-10-27 04:36:08,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:36:08,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692770056] [2020-10-27 04:36:08,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:36:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:08,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:08,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:08,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:08,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:09,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:09,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:13,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:13,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-27 04:36:13,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:36:13,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-27 04:36:13,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:13,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:36:13,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 04:36:13,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 04:36:13,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:36:13,965 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 04:36:13,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:36:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:13,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:13,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:13,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:36:13,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:13,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:36:13,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:13,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:13,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:36:13,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:13,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:14,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:36:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:14,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:14,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:14,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:36:14,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:14,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 04:36:14,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:14,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:36:14,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:36:14,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 04:36:14,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:14,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 04:36:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:14,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:14,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:14,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:36:14,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:14,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:36:14,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:14,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:36:14,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:36:14,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:36:14,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:14,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 04:36:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:14,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:14,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:14,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:14,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:14,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:36:14,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:14,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:36:14,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:36:14,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:36:14,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:14,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 04:36:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:14,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:14,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:14,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:14,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:14,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:36:14,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:36:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:36:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:36:14,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:36:14,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 04:36:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:14,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:14,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:14,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:14,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:14,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:36:14,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:14,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:36:14,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:36:14,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:36:14,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:14,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 04:36:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:14,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:14,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:14,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:14,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:14,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:36:14,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:14,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:36:14,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:36:14,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:36:14,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:14,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 04:36:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:14,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:14,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:14,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:14,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:14,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:36:14,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:14,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:36:14,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:36:14,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:36:14,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:14,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 04:36:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:14,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:14,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:14,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:36:14,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:14,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:36:14,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:14,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:36:14,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:36:14,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:36:14,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:14,719 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 04:36:14,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692770056] [2020-10-27 04:36:14,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:36:14,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 04:36:14,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109299786] [2020-10-27 04:36:14,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 04:36:14,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:36:14,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 04:36:14,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2020-10-27 04:36:14,723 INFO L87 Difference]: Start difference. First operand 155 states and 203 transitions. Second operand 19 states. [2020-10-27 04:36:15,042 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 04:36:15,354 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 04:36:15,610 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 04:36:15,875 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 04:36:16,175 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 04:36:21,972 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 04:36:22,253 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 04:36:22,571 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 04:36:22,876 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 04:36:23,177 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 04:36:31,097 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-27 04:36:32,846 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2020-10-27 04:36:33,374 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 04:36:39,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:36:39,648 INFO L93 Difference]: Finished difference Result 1632 states and 2505 transitions. [2020-10-27 04:36:39,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2020-10-27 04:36:39,648 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 99 [2020-10-27 04:36:39,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:36:39,668 INFO L225 Difference]: With dead ends: 1632 [2020-10-27 04:36:39,669 INFO L226 Difference]: Without dead ends: 1527 [2020-10-27 04:36:39,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5736 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=2945, Invalid=12555, Unknown=0, NotChecked=0, Total=15500 [2020-10-27 04:36:39,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2020-10-27 04:36:39,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1222. [2020-10-27 04:36:39,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1222 states. [2020-10-27 04:36:39,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1784 transitions. [2020-10-27 04:36:39,866 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1784 transitions. Word has length 99 [2020-10-27 04:36:39,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:36:39,866 INFO L481 AbstractCegarLoop]: Abstraction has 1222 states and 1784 transitions. [2020-10-27 04:36:39,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 04:36:39,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1784 transitions. [2020-10-27 04:36:39,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 04:36:39,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:36:39,871 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:36:39,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 04:36:39,871 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:36:39,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:36:39,872 INFO L82 PathProgramCache]: Analyzing trace with hash -614532040, now seen corresponding path program 1 times [2020-10-27 04:36:39,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:36:39,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178730267] [2020-10-27 04:36:39,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:36:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:39,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:39,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:40,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:40,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:40,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:40,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:44,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:44,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:36:44,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:36:44,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 04:36:44,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:44,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:36:44,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 04:36:44,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 04:36:44,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:45,211 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 04:36:45,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:36:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:45,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:45,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:45,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:36:45,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:45,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:36:45,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:36:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:45,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:45,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:36:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:45,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:45,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:45,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:36:45,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:45,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:36:45,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:45,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:36:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:36:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:36:45,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:45,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 04:36:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:45,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:45,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:45,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:36:45,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:45,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:36:45,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:45,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:36:45,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:36:45,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:36:45,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:45,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 04:36:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:45,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:45,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:45,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:45,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:45,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:36:45,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:45,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:36:45,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:36:45,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:36:45,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:45,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 04:36:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:45,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:45,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:45,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:45,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:45,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:36:45,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:45,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:45,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:45,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:45,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:45,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 04:36:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:45,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:45,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:45,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:45,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:45,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:36:45,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:45,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:45,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:45,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:45,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:45,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 04:36:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:45,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:45,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:45,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:45,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:45,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:36:45,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:45,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:45,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 04:36:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:45,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:45,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:45,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:45,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:45,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:36:45,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:45,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:45,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:45,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:45,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:45,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 04:36:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:45,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:45,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:45,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:45,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:45,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:36:45,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:45,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:45,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:45,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:45,528 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 04:36:45,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178730267] [2020-10-27 04:36:45,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:36:45,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 04:36:45,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681343272] [2020-10-27 04:36:45,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 04:36:45,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:36:45,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 04:36:45,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:36:45,531 INFO L87 Difference]: Start difference. First operand 1222 states and 1784 transitions. Second operand 11 states. [2020-10-27 04:36:45,833 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 04:36:48,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:36:48,962 INFO L93 Difference]: Finished difference Result 3527 states and 5149 transitions. [2020-10-27 04:36:48,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:36:48,963 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-27 04:36:48,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:36:48,979 INFO L225 Difference]: With dead ends: 3527 [2020-10-27 04:36:48,979 INFO L226 Difference]: Without dead ends: 2355 [2020-10-27 04:36:48,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-27 04:36:48,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2355 states. [2020-10-27 04:36:49,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2355 to 2253. [2020-10-27 04:36:49,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2253 states. [2020-10-27 04:36:49,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2253 states to 2253 states and 3281 transitions. [2020-10-27 04:36:49,150 INFO L78 Accepts]: Start accepts. Automaton has 2253 states and 3281 transitions. Word has length 100 [2020-10-27 04:36:49,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:36:49,151 INFO L481 AbstractCegarLoop]: Abstraction has 2253 states and 3281 transitions. [2020-10-27 04:36:49,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 04:36:49,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2253 states and 3281 transitions. [2020-10-27 04:36:49,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 04:36:49,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:36:49,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:36:49,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 04:36:49,154 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:36:49,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:36:49,154 INFO L82 PathProgramCache]: Analyzing trace with hash -32177036, now seen corresponding path program 1 times [2020-10-27 04:36:49,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:36:49,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412103633] [2020-10-27 04:36:49,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:36:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:49,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:49,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:49,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:49,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:49,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:54,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:54,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 04:36:54,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:36:54,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 04:36:54,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:54,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:36:54,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 04:36:54,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-27 04:36:54,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:54,452 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 04:36:54,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:36:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:54,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:54,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:54,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:36:54,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:54,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:36:54,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:36:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:54,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:54,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:36:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:54,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:54,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:54,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:36:54,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:54,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 04:36:54,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:54,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:36:54,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:36:54,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 04:36:54,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:54,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 04:36:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:54,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:54,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:54,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:36:54,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:54,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:36:54,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:54,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:36:54,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:36:54,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:36:54,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:54,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 04:36:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:54,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:54,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:54,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:36:54,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:54,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:36:54,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:54,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:36:54,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:36:54,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:36:54,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:54,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 04:36:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:54,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:54,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:54,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:54,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:54,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:36:54,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:54,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:36:54,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:36:54,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:36:54,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:54,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 04:36:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:54,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:54,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:54,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:54,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:54,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:36:54,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:54,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:54,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:54,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:54,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 04:36:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:54,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:54,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:54,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:54,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:54,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:36:54,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:54,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:54,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:54,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:54,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:54,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 04:36:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:54,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:54,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:54,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:54,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:54,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:36:54,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:54,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:54,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 04:36:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:54,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:54,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:36:54,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:36:54,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:36:54,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:36:54,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:36:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:36:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:36:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:36:54,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:36:54,788 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 04:36:54,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412103633] [2020-10-27 04:36:54,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:36:54,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 04:36:54,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774431589] [2020-10-27 04:36:54,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 04:36:54,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:36:54,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 04:36:54,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:36:54,791 INFO L87 Difference]: Start difference. First operand 2253 states and 3281 transitions. Second operand 11 states. [2020-10-27 04:36:55,076 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 04:36:58,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:36:58,206 INFO L93 Difference]: Finished difference Result 6553 states and 9511 transitions. [2020-10-27 04:36:58,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:36:58,210 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-27 04:36:58,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:36:58,237 INFO L225 Difference]: With dead ends: 6553 [2020-10-27 04:36:58,238 INFO L226 Difference]: Without dead ends: 4350 [2020-10-27 04:36:58,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-27 04:36:58,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4350 states. [2020-10-27 04:36:58,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4350 to 4171. [2020-10-27 04:36:58,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4171 states. [2020-10-27 04:36:58,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4171 states to 4171 states and 6036 transitions. [2020-10-27 04:36:58,602 INFO L78 Accepts]: Start accepts. Automaton has 4171 states and 6036 transitions. Word has length 101 [2020-10-27 04:36:58,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:36:58,602 INFO L481 AbstractCegarLoop]: Abstraction has 4171 states and 6036 transitions. [2020-10-27 04:36:58,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 04:36:58,602 INFO L276 IsEmpty]: Start isEmpty. Operand 4171 states and 6036 transitions. [2020-10-27 04:36:58,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-27 04:36:58,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:36:58,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:36:58,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 04:36:58,605 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:36:58,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:36:58,606 INFO L82 PathProgramCache]: Analyzing trace with hash 671381218, now seen corresponding path program 1 times [2020-10-27 04:36:58,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:36:58,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2093351817] [2020-10-27 04:36:58,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:36:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:36:58,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:58,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:58,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:36:58,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:03,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:03,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-27 04:37:03,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:37:03,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 04:37:03,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:03,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:37:03,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 04:37:03,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-27 04:37:03,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:03,941 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 04:37:03,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:37:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:03,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:03,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:03,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:37:03,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:03,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:37:03,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:03,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:37:03,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:03,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:37:03,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:03,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:37:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:03,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:03,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:03,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:37:03,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:03,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:37:03,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:03,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:03,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:03,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 04:37:03,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:04,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 04:37:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:04,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:04,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:04,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:37:04,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:04,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:37:04,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:04,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:04,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:04,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:37:04,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:04,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 04:37:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:04,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:04,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:04,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:37:04,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:04,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:37:04,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:04,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:37:04,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:04,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 04:37:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:04,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:04,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:04,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:37:04,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:04,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:37:04,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:04,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:04,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:04,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:37:04,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:04,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 04:37:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:04,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:04,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:04,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:37:04,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:04,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:37:04,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:04,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:37:04,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:37:04,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:37:04,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:04,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 04:37:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:04,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:04,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:04,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:37:04,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:04,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:37:04,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:04,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:37:04,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:37:04,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:37:04,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:04,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 04:37:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:04,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:04,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:04,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:37:04,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:04,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:37:04,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:37:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:37:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:37:04,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:04,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 04:37:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:04,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:04,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:04,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:37:04,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:04,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:37:04,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:37:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:37:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:37:04,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:04,295 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 04:37:04,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2093351817] [2020-10-27 04:37:04,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:37:04,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 04:37:04,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777453899] [2020-10-27 04:37:04,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 04:37:04,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:37:04,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 04:37:04,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:37:04,300 INFO L87 Difference]: Start difference. First operand 4171 states and 6036 transitions. Second operand 11 states. [2020-10-27 04:37:04,625 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 04:37:08,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:37:08,117 INFO L93 Difference]: Finished difference Result 12145 states and 17492 transitions. [2020-10-27 04:37:08,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:37:08,118 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-10-27 04:37:08,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:37:08,164 INFO L225 Difference]: With dead ends: 12145 [2020-10-27 04:37:08,164 INFO L226 Difference]: Without dead ends: 8024 [2020-10-27 04:37:08,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-10-27 04:37:08,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8024 states. [2020-10-27 04:37:08,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8024 to 7713. [2020-10-27 04:37:08,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7713 states. [2020-10-27 04:37:08,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7713 states to 7713 states and 11064 transitions. [2020-10-27 04:37:08,760 INFO L78 Accepts]: Start accepts. Automaton has 7713 states and 11064 transitions. Word has length 102 [2020-10-27 04:37:08,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:37:08,761 INFO L481 AbstractCegarLoop]: Abstraction has 7713 states and 11064 transitions. [2020-10-27 04:37:08,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 04:37:08,761 INFO L276 IsEmpty]: Start isEmpty. Operand 7713 states and 11064 transitions. [2020-10-27 04:37:08,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-27 04:37:08,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:37:08,763 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:37:08,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 04:37:08,763 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:37:08,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:37:08,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1074598232, now seen corresponding path program 1 times [2020-10-27 04:37:08,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:37:08,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735540103] [2020-10-27 04:37:08,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:37:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:08,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:08,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:08,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:13,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:13,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 04:37:13,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:37:13,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4915 [2020-10-27 04:37:13,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:37:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 04:37:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 04:37:13,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:14,048 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 04:37:14,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:37:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:14,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:14,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:14,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:37:14,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:14,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:37:14,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:14,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:37:14,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:37:14,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:14,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:37:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:14,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:14,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:14,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:37:14,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:14,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 04:37:14,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:14,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:14,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:14,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 04:37:14,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:37:14,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 04:37:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:14,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:14,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:14,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:37:14,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:14,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:37:14,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:14,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:14,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:14,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:37:14,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:14,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 04:37:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:14,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:14,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:14,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:37:14,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:14,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:37:14,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:14,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:14,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:14,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:37:14,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:14,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 04:37:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:14,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:14,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:14,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:37:14,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:14,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:37:14,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:14,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:14,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:14,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:37:14,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:14,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 04:37:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:14,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:14,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:14,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:37:14,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:14,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:37:14,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:37:14,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:14,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 04:37:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:14,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:14,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:14,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:37:14,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:14,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 04:37:14,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:14,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:37:14,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:37:14,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:37:14,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:14,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 04:37:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:14,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:14,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:14,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:37:14,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:14,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:37:14,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:14,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:37:14,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:37:14,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:37:14,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:14,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 04:37:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:14,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:14,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:14,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:37:14,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:14,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:37:14,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:14,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:37:14,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:37:14,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:37:14,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:14,539 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 04:37:14,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735540103] [2020-10-27 04:37:14,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:37:14,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 04:37:14,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535071530] [2020-10-27 04:37:14,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 04:37:14,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:37:14,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 04:37:14,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:37:14,548 INFO L87 Difference]: Start difference. First operand 7713 states and 11064 transitions. Second operand 11 states. [2020-10-27 04:37:14,854 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 04:37:15,907 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-27 04:37:18,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:37:18,513 INFO L93 Difference]: Finished difference Result 22391 states and 31956 transitions. [2020-10-27 04:37:18,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:37:18,514 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-10-27 04:37:18,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:37:18,592 INFO L225 Difference]: With dead ends: 22391 [2020-10-27 04:37:18,592 INFO L226 Difference]: Without dead ends: 14728 [2020-10-27 04:37:18,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-27 04:37:18,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14728 states. [2020-10-27 04:37:19,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14728 to 14197. [2020-10-27 04:37:19,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14197 states. [2020-10-27 04:37:19,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14197 states to 14197 states and 20148 transitions. [2020-10-27 04:37:19,762 INFO L78 Accepts]: Start accepts. Automaton has 14197 states and 20148 transitions. Word has length 103 [2020-10-27 04:37:19,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:37:19,762 INFO L481 AbstractCegarLoop]: Abstraction has 14197 states and 20148 transitions. [2020-10-27 04:37:19,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 04:37:19,762 INFO L276 IsEmpty]: Start isEmpty. Operand 14197 states and 20148 transitions. [2020-10-27 04:37:19,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-27 04:37:19,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:37:19,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:37:19,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 04:37:19,764 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:37:19,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:37:19,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1140259606, now seen corresponding path program 1 times [2020-10-27 04:37:19,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:37:19,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230826250] [2020-10-27 04:37:19,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:37:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:19,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:19,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:21,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:21,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 04:37:21,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:37:21,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1270 [2020-10-27 04:37:21,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:21,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:37:21,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-27 04:37:21,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 04:37:21,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:21,438 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 04:37:21,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:37:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:21,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:21,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:21,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:37:21,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:21,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:37:21,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:21,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:37:21,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:21,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:37:21,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:21,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:37:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:21,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:21,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:21,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:37:21,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:21,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 04:37:21,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:21,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:21,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:21,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 04:37:21,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:21,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 04:37:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:21,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:21,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:21,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:37:21,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:21,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:37:21,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:37:21,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:21,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 04:37:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:21,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:21,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:21,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:37:21,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:21,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:37:21,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:21,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:21,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:21,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:37:21,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:21,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 04:37:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:21,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:21,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:21,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:37:21,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:21,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:37:21,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:21,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:21,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:21,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:37:21,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:21,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 04:37:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:21,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:21,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:21,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:37:21,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:21,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:37:21,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:37:21,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:21,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 04:37:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:21,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:21,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:21,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:37:21,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:21,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:37:21,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:21,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:21,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:37:21,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:21,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 04:37:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:21,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:21,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:21,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:37:21,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:21,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:37:21,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:21,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:37:21,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:37:21,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:37:21,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:21,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 04:37:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:21,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:21,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:21,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:37:21,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:21,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:37:21,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:21,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:37:21,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:37:21,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:37:21,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:21,788 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 04:37:21,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230826250] [2020-10-27 04:37:21,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:37:21,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 04:37:21,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561381768] [2020-10-27 04:37:21,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 04:37:21,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:37:21,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 04:37:21,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:37:21,795 INFO L87 Difference]: Start difference. First operand 14197 states and 20148 transitions. Second operand 11 states. [2020-10-27 04:37:22,103 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 04:37:26,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:37:26,320 INFO L93 Difference]: Finished difference Result 41019 states and 57896 transitions. [2020-10-27 04:37:26,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:37:26,320 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 104 [2020-10-27 04:37:26,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:37:26,434 INFO L225 Difference]: With dead ends: 41019 [2020-10-27 04:37:26,435 INFO L226 Difference]: Without dead ends: 26872 [2020-10-27 04:37:26,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-27 04:37:26,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26872 states. [2020-10-27 04:37:28,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26872 to 25989. [2020-10-27 04:37:28,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25989 states. [2020-10-27 04:37:28,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25989 states to 25989 states and 36388 transitions. [2020-10-27 04:37:28,513 INFO L78 Accepts]: Start accepts. Automaton has 25989 states and 36388 transitions. Word has length 104 [2020-10-27 04:37:28,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:37:28,513 INFO L481 AbstractCegarLoop]: Abstraction has 25989 states and 36388 transitions. [2020-10-27 04:37:28,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 04:37:28,514 INFO L276 IsEmpty]: Start isEmpty. Operand 25989 states and 36388 transitions. [2020-10-27 04:37:28,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-27 04:37:28,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:37:28,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:37:28,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 04:37:28,516 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:37:28,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:37:28,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1829394246, now seen corresponding path program 1 times [2020-10-27 04:37:28,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:37:28,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447589226] [2020-10-27 04:37:28,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:37:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:28,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:28,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:30,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:30,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 04:37:30,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:37:30,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2258 [2020-10-27 04:37:30,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:37:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 04:37:30,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 04:37:30,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:31,136 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 04:37:31,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:37:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:31,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:31,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:31,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:37:31,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:31,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:37:31,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:31,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:37:31,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:31,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:37:31,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:31,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:37:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:31,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:31,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:31,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 04:37:31,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:31,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:37:31,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:31,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:31,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:31,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 04:37:31,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:31,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 04:37:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:31,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:31,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:31,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:37:31,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:31,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:37:31,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:31,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:31,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:31,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:37:31,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:31,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 04:37:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:31,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:31,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:31,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:37:31,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:31,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:37:31,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:31,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:37:31,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:31,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:37:31,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:31,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 04:37:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:31,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:31,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:31,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:37:31,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:31,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:37:31,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:31,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:37:31,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:31,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:37:31,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:31,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 04:37:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:31,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:31,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:31,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:37:31,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:31,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:37:31,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:31,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:37:31,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:31,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:37:31,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:31,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 04:37:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:31,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:31,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:31,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:37:31,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:31,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:37:31,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:31,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:37:31,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:37:31,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:37:31,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:31,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 04:37:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:31,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:31,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:31,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 04:37:31,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:31,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:37:31,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:31,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:37:31,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 04:37:31,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:37:31,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:31,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 04:37:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:37:31,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:37:31,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:37:31,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:37:31,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:37:31,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:37:31,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:37:31,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:37:31,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:37:31,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:37:31,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:37:31,669 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 04:37:31,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447589226] [2020-10-27 04:37:31,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:37:31,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-27 04:37:31,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282685178] [2020-10-27 04:37:31,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 04:37:31,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:37:31,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 04:37:31,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-10-27 04:37:31,671 INFO L87 Difference]: Start difference. First operand 25989 states and 36388 transitions. Second operand 18 states. [2020-10-27 04:37:32,091 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 04:37:32,453 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 04:37:33,334 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 04:37:34,097 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 04:37:34,461 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 04:37:34,781 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 04:37:35,913 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 04:37:36,268 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 04:37:36,570 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 04:37:36,879 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 04:37:37,190 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 04:37:37,781 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 04:37:38,080 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 04:37:39,650 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 04:37:40,047 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 04:37:40,340 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 04:37:40,663 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 04:37:40,972 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 04:37:41,299 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 04:37:41,604 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 04:37:42,211 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 04:37:42,512 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 04:37:42,856 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 04:37:43,152 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 04:37:43,468 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 04:37:43,760 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 04:37:44,826 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 04:37:45,114 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 04:37:47,658 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 04:37:47,976 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 04:37:48,298 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 04:37:48,634 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 04:37:48,961 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 04:37:49,317 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 04:37:49,666 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 04:37:50,001 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 04:37:50,481 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 04:37:50,785 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 04:37:51,114 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 04:37:51,429 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 04:37:51,742 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 04:37:52,067 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 04:37:52,398 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 04:37:52,713 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 04:37:53,028 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 04:37:53,359 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 04:37:53,681 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 04:37:54,015 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 04:37:55,107 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 04:37:55,417 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 04:37:55,992 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 04:37:56,299 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 04:37:56,613 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 04:37:56,921 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 04:37:57,233 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 04:37:57,552 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 04:37:59,373 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 04:37:59,680 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 04:38:07,838 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 04:38:08,149 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-27 04:38:08,320 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-27 04:38:08,510 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-27 04:38:14,736 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 04:38:14,894 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 04:38:15,052 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 04:38:15,227 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 04:38:15,445 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 04:38:15,803 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 04:38:15,979 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 04:38:16,309 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 04:38:16,491 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 04:38:16,647 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 04:38:16,817 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 04:38:16,998 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 04:38:17,164 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 04:38:17,314 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 04:38:22,392 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 04:38:22,624 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 04:38:22,836 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 04:38:29,676 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 04:38:29,848 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 04:38:30,020 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 04:38:30,240 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 04:38:30,582 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 04:38:30,931 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 04:38:31,086 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 04:38:31,269 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 04:38:31,426 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 04:38:31,589 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-27 04:38:31,798 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 04:38:31,954 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 04:38:32,121 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-27 04:39:17,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:39:17,356 INFO L93 Difference]: Finished difference Result 628488 states and 927920 transitions. [2020-10-27 04:39:17,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 303 states. [2020-10-27 04:39:17,357 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 105 [2020-10-27 04:39:17,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:39:21,008 INFO L225 Difference]: With dead ends: 628488 [2020-10-27 04:39:21,008 INFO L226 Difference]: Without dead ends: 602549 [2020-10-27 04:39:21,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42616 ImplicationChecksByTransitivity, 43.7s TimeCoverageRelationStatistics Valid=8249, Invalid=89407, Unknown=0, NotChecked=0, Total=97656 [2020-10-27 04:39:21,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602549 states.