/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_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 04:42:07,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 04:42:07,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 04:42:07,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 04:42:07,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 04:42:07,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 04:42:07,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 04:42:07,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 04:42:07,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 04:42:07,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 04:42:07,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 04:42:07,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 04:42:07,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 04:42:07,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 04:42:07,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 04:42:07,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 04:42:07,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 04:42:07,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 04:42:07,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 04:42:07,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 04:42:07,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 04:42:07,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 04:42:07,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 04:42:07,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 04:42:07,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 04:42:07,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 04:42:07,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 04:42:07,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 04:42:07,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 04:42:07,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 04:42:07,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 04:42:07,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 04:42:07,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 04:42:07,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 04:42:07,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 04:42:07,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 04:42:07,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 04:42:07,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 04:42:07,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 04:42:07,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 04:42:07,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 04:42:07,654 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 04:42:07,707 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 04:42:07,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 04:42:07,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 04:42:07,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 04:42:07,712 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 04:42:07,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 04:42:07,712 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 04:42:07,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 04:42:07,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 04:42:07,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 04:42:07,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 04:42:07,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 04:42:07,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 04:42:07,715 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 04:42:07,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 04:42:07,715 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 04:42:07,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 04:42:07,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 04:42:07,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 04:42:07,716 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 04:42:07,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 04:42:07,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:42:07,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 04:42:07,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 04:42:07,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 04:42:07,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 04:42:07,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 04:42:07,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 04:42:07,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 04:42:07,718 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 04:42:08,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 04:42:08,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 04:42:08,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 04:42:08,178 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 04:42:08,178 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 04:42:08,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2020-10-27 04:42:08,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bcf173dc8/ce60de1ea4fa44fdbde739a9075aba52/FLAG482e6afdf [2020-10-27 04:42:09,005 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 04:42:09,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2020-10-27 04:42:09,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bcf173dc8/ce60de1ea4fa44fdbde739a9075aba52/FLAG482e6afdf [2020-10-27 04:42:09,223 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bcf173dc8/ce60de1ea4fa44fdbde739a9075aba52 [2020-10-27 04:42:09,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 04:42:09,233 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 04:42:09,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 04:42:09,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 04:42:09,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 04:42:09,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:42:09" (1/1) ... [2020-10-27 04:42:09,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c5bef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:42:09, skipping insertion in model container [2020-10-27 04:42:09,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:42:09" (1/1) ... [2020-10-27 04:42:09,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 04:42:09,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 04:42:09,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:42:09,734 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 04:42:09,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:42:09,851 INFO L208 MainTranslator]: Completed translation [2020-10-27 04:42:09,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:42:09 WrapperNode [2020-10-27 04:42:09,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 04:42:09,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 04:42:09,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 04:42:09,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 04:42:09,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:42:09" (1/1) ... [2020-10-27 04:42:09,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:42:09" (1/1) ... [2020-10-27 04:42:09,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:42:09" (1/1) ... [2020-10-27 04:42:09,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:42:09" (1/1) ... [2020-10-27 04:42:09,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:42:09" (1/1) ... [2020-10-27 04:42:09,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:42:09" (1/1) ... [2020-10-27 04:42:09,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:42:09" (1/1) ... [2020-10-27 04:42:10,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 04:42:10,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 04:42:10,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 04:42:10,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 04:42:10,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:42:09" (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 04:42:10,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 04:42:10,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 04:42:10,081 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 04:42:10,081 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 04:42:10,081 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 04:42:10,082 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 04:42:10,082 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 04:42:10,082 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 04:42:10,082 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 04:42:10,082 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 04:42:10,082 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 04:42:10,083 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 04:42:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 04:42:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 04:42:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 04:42:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 04:42:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 04:42:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 04:42:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 04:42:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 04:42:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 04:42:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 04:42:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 04:42:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 04:42:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 04:42:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 04:42:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 04:42:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 04:42:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 04:42:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 04:42:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 04:42:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 04:42:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 04:42:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 04:42:10,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 04:42:10,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 04:42:11,583 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 04:42:11,584 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 04:42:11,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:42:11 BoogieIcfgContainer [2020-10-27 04:42:11,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 04:42:11,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 04:42:11,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 04:42:11,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 04:42:11,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:42:09" (1/3) ... [2020-10-27 04:42:11,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22beaae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:42:11, skipping insertion in model container [2020-10-27 04:42:11,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:42:09" (2/3) ... [2020-10-27 04:42:11,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22beaae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:42:11, skipping insertion in model container [2020-10-27 04:42:11,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:42:11" (3/3) ... [2020-10-27 04:42:11,602 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.UNBOUNDED.pals.c [2020-10-27 04:42:11,613 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 04:42:11,618 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 04:42:11,629 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 04:42:11,660 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 04:42:11,661 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 04:42:11,661 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 04:42:11,661 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 04:42:11,661 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 04:42:11,661 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 04:42:11,662 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 04:42:11,662 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 04:42:11,689 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states. [2020-10-27 04:42:11,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 04:42:11,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:42:11,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:42:11,709 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:42:11,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:42:11,716 INFO L82 PathProgramCache]: Analyzing trace with hash 2135324040, now seen corresponding path program 1 times [2020-10-27 04:42:11,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:42:11,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677278182] [2020-10-27 04:42:11,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:42:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:12,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:12,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:12,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 04:42:12,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:12,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 706 [2020-10-27 04:42:12,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:12,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:12,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 04:42:12,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:12,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:42:13,519 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:42:13,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:42:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:13,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:13,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:13,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:42:13,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:13,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 04:42:13,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:13,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:13,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:42:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:13,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:13,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:13,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 04:42:13,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:13,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 04:42:13,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:13,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:13,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:13,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:13,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:13,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 04:42:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:13,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:13,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:13,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:42:13,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:13,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:42:13,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:13,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:13,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:42:13,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:13,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:42:13,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 04:42:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:13,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:13,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:13,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:13,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:13,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:42:13,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:13,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:13,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:13,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:13,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:13,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 04:42:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:13,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:13,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:13,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:13,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:13,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:42:13,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:13,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:13,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:13,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:13,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:13,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 04:42:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:13,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:13,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:13,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:13,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:13,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:42:13,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:13,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:13,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:13,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:13,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:14,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 04:42:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:14,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:14,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:14,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:14,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:14,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:42:14,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:14,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:14,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:14,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:14,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:14,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 04:42:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:14,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:14,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:14,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:42:14,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:14,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:42:14,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:14,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:14,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:42:14,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:14,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:14,106 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 04:42:14,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677278182] [2020-10-27 04:42:14,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:42:14,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 04:42:14,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926455192] [2020-10-27 04:42:14,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 04:42:14,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:42:14,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 04:42:14,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 04:42:14,134 INFO L87 Difference]: Start difference. First operand 369 states. Second operand 7 states. [2020-10-27 04:42:15,374 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:15,893 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:16,472 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:17,007 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:17,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:42:17,623 INFO L93 Difference]: Finished difference Result 565 states and 949 transitions. [2020-10-27 04:42:17,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 04:42:17,625 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-27 04:42:17,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:42:17,645 INFO L225 Difference]: With dead ends: 565 [2020-10-27 04:42:17,645 INFO L226 Difference]: Without dead ends: 401 [2020-10-27 04:42:17,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:42:17,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-27 04:42:17,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 361. [2020-10-27 04:42:17,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-27 04:42:17,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 620 transitions. [2020-10-27 04:42:17,774 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 620 transitions. Word has length 109 [2020-10-27 04:42:17,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:42:17,775 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 620 transitions. [2020-10-27 04:42:17,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 04:42:17,775 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 620 transitions. [2020-10-27 04:42:17,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 04:42:17,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:42:17,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:42:17,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 04:42:17,783 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:42:17,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:42:17,784 INFO L82 PathProgramCache]: Analyzing trace with hash -231370554, now seen corresponding path program 1 times [2020-10-27 04:42:17,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:42:17,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210272180] [2020-10-27 04:42:17,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:42:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:17,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:19,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:19,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 04:42:19,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:19,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1363 [2020-10-27 04:42:19,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:42:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-27 04:42:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:42:19,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:19,988 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:42:19,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:42:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:20,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:20,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:42:20,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:20,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:42:20,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:20,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:20,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:20,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:20,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:20,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:42:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:20,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:20,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 04:42:20,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:20,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-27 04:42:20,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:20,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:42:20,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:20,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 04:42:20,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:20,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 04:42:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:20,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:20,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:42:20,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:20,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:42:20,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:20,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:42:20,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:42:20,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:42:20,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:20,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 04:42:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:20,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:20,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:20,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:20,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:42:20,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:20,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:20,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 04:42:20,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 04:42:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:20,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:20,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:20,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:20,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:42:20,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:20,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:20,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:20,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:20,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:42:20,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 04:42:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:20,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:20,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:20,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:20,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:42:20,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:20,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:20,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:20,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:20,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:42:20,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 04:42:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:20,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:20,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:20,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:20,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:42:20,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:20,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:20,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:20,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:20,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:42:20,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 04:42:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:20,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:20,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:42:20,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:20,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:42:20,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:20,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:20,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:42:20,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:20,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:20,770 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 04:42:20,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1210272180] [2020-10-27 04:42:20,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:42:20,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 04:42:20,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80938063] [2020-10-27 04:42:20,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 04:42:20,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:42:20,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 04:42:20,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:42:20,776 INFO L87 Difference]: Start difference. First operand 361 states and 620 transitions. Second operand 13 states. [2020-10-27 04:42:23,619 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 04:42:24,277 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 04:42:25,022 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 04:42:25,694 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2020-10-27 04:42:26,591 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:27,276 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:28,029 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:28,684 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:29,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:42:29,617 INFO L93 Difference]: Finished difference Result 560 states and 937 transitions. [2020-10-27 04:42:29,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 04:42:29,626 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-27 04:42:29,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:42:29,636 INFO L225 Difference]: With dead ends: 560 [2020-10-27 04:42:29,636 INFO L226 Difference]: Without dead ends: 401 [2020-10-27 04:42:29,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-27 04:42:29,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-27 04:42:29,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 361. [2020-10-27 04:42:29,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-27 04:42:29,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 574 transitions. [2020-10-27 04:42:29,702 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 574 transitions. Word has length 109 [2020-10-27 04:42:29,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:42:29,702 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 574 transitions. [2020-10-27 04:42:29,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 04:42:29,703 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 574 transitions. [2020-10-27 04:42:29,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-27 04:42:29,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:42:29,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:42:29,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 04:42:29,709 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:42:29,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:42:29,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1064128907, now seen corresponding path program 1 times [2020-10-27 04:42:29,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:42:29,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203207119] [2020-10-27 04:42:29,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:42:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:29,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:30,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:30,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:31,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:31,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:34,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:34,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-27 04:42:34,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:42:34,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-27 04:42:34,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:42:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-27 04:42:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:42:34,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:42:35,516 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:42:35,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:42:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:35,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:35,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:35,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:42:35,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:35,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 04:42:35,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:35,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:35,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:35,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:35,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:42:35,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:42:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:35,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:35,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:35,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:42:35,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:35,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-27 04:42:35,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:35,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:35,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 04:42:35,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 32 [2020-10-27 04:42:35,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:42:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:35,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:35,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:35,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:42:35,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:35,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:42:35,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:35,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:35,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:35,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:42:35,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:35,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:42:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:35,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:35,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:35,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:35,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:35,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:42:35,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:35,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:42:35,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:42:35,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:42:35,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:36,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 04:42:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:36,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:36,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:36,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:36,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:36,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:42:36,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:36,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:36,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 04:42:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:36,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:36,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:36,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:36,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:36,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:42:36,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:36,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:36,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 04:42:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:36,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:36,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:36,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:36,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:36,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:42:36,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:36,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:36,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 04:42:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:36,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:36,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:36,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:42:36,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:36,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:42:36,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:36,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:36,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:42:36,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:36,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:36,244 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 04:42:36,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203207119] [2020-10-27 04:42:36,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:42:36,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:42:36,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012991047] [2020-10-27 04:42:36,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:42:36,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:42:36,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:42:36,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:42:36,249 INFO L87 Difference]: Start difference. First operand 361 states and 574 transitions. Second operand 10 states. [2020-10-27 04:42:36,914 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:42:39,233 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:39,569 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:40,025 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:42:40,295 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:40,946 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:42:41,262 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:41,877 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:42:42,197 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:43,587 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-27 04:42:44,102 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 04:42:44,311 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 04:42:44,629 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:42:44,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:42:44,732 INFO L93 Difference]: Finished difference Result 757 states and 1209 transitions. [2020-10-27 04:42:44,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:42:44,733 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 154 [2020-10-27 04:42:44,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:42:44,739 INFO L225 Difference]: With dead ends: 757 [2020-10-27 04:42:44,739 INFO L226 Difference]: Without dead ends: 604 [2020-10-27 04:42:44,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:42:44,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-10-27 04:42:44,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 514. [2020-10-27 04:42:44,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-27 04:42:44,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 814 transitions. [2020-10-27 04:42:44,801 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 814 transitions. Word has length 154 [2020-10-27 04:42:44,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:42:44,801 INFO L481 AbstractCegarLoop]: Abstraction has 514 states and 814 transitions. [2020-10-27 04:42:44,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:42:44,802 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 814 transitions. [2020-10-27 04:42:44,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-27 04:42:44,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:42:44,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:42:44,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 04:42:44,806 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:42:44,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:42:44,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1343170987, now seen corresponding path program 1 times [2020-10-27 04:42:44,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:42:44,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825945978] [2020-10-27 04:42:44,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:42:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:44,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:45,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:45,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:45,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:45,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:49,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:49,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 04:42:49,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:42:49,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 04:42:49,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:49,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:42:49,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:42:49,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 04:42:49,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:50,552 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:42:50,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:42:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:50,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:50,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:50,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:42:50,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:50,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 04:42:50,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:50,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:50,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:50,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:42:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:50,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:50,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:50,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:42:50,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:50,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-27 04:42:50,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:50,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:42:50,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:50,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:42:50,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:50,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:42:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:50,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:50,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:50,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:42:50,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:50,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:42:50,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:50,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:50,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:50,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:42:50,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:51,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:42:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:51,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:51,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:51,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 04:42:51,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:51,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:42:51,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:42:51,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:42:51,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:51,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 04:42:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:51,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:51,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:51,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:51,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:51,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:42:51,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:51,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:51,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:51,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:51,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:51,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 04:42:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:51,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:51,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:51,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:51,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:51,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:42:51,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:51,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:51,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:51,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:51,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:42:51,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 04:42:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:51,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:51,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:51,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:51,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:51,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:42:51,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:51,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:51,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:51,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:51,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:42:51,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-27 04:42:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:51,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:51,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:51,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:42:51,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:51,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:42:51,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:42:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:51,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:51,418 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 04:42:51,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825945978] [2020-10-27 04:42:51,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:42:51,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:42:51,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552633825] [2020-10-27 04:42:51,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:42:51,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:42:51,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:42:51,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:42:51,421 INFO L87 Difference]: Start difference. First operand 514 states and 814 transitions. Second operand 10 states. [2020-10-27 04:42:52,117 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:42:52,654 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 04:42:53,304 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-27 04:42:53,915 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:42:57,578 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:42:58,002 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:58,313 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:59,082 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:59,321 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:00,179 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:00,528 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:01,357 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:01,716 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:03,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:43:03,282 INFO L93 Difference]: Finished difference Result 1655 states and 2635 transitions. [2020-10-27 04:43:03,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 04:43:03,285 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-27 04:43:03,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:43:03,297 INFO L225 Difference]: With dead ends: 1655 [2020-10-27 04:43:03,297 INFO L226 Difference]: Without dead ends: 1159 [2020-10-27 04:43:03,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:43:03,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2020-10-27 04:43:03,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1006. [2020-10-27 04:43:03,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1006 states. [2020-10-27 04:43:03,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1576 transitions. [2020-10-27 04:43:03,446 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1576 transitions. Word has length 157 [2020-10-27 04:43:03,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:43:03,447 INFO L481 AbstractCegarLoop]: Abstraction has 1006 states and 1576 transitions. [2020-10-27 04:43:03,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:43:03,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1576 transitions. [2020-10-27 04:43:03,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-27 04:43:03,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:43:03,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:43:03,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 04:43:03,452 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:43:03,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:43:03,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1890930063, now seen corresponding path program 1 times [2020-10-27 04:43:03,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:43:03,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455534186] [2020-10-27 04:43:03,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:43:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:03,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:03,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:03,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:03,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:04,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:08,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:08,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-27 04:43:08,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:43:08,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 04:43:08,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:43:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:43:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 04:43:08,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:09,139 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:43:09,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:43:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:09,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:09,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:09,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:43:09,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:09,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:43:09,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:09,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:09,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:09,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:09,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:43:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:09,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:09,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:09,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:43:09,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:09,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-27 04:43:09,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:09,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:43:09,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:09,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:43:09,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:09,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:43:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:09,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:09,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:09,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:43:09,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:09,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:43:09,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:09,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:09,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:09,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:43:09,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:09,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:43:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:09,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:09,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:09,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 04:43:09,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:09,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:43:09,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:09,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:09,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 04:43:09,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:43:09,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:09,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 04:43:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:09,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:09,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:09,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:09,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:09,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:43:09,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:09,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:09,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:09,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:09,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:09,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-27 04:43:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:09,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:09,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:09,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:09,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:09,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:43:09,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:09,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:09,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:09,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:09,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:09,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 04:43:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:09,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:09,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:09,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:09,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:09,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:43:09,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:09,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:09,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:09,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:09,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 04:43:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:09,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:09,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:09,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:43:09,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:09,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:43:09,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:09,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:09,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:43:09,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:09,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:09,933 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 04:43:09,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455534186] [2020-10-27 04:43:09,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:43:09,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:43:09,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548953785] [2020-10-27 04:43:09,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:43:09,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:43:09,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:43:09,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:43:09,936 INFO L87 Difference]: Start difference. First operand 1006 states and 1576 transitions. Second operand 10 states. [2020-10-27 04:43:10,572 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:43:11,245 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-27 04:43:11,948 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-27 04:43:13,754 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-27 04:43:18,657 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:43:19,081 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:19,363 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:19,756 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:20,354 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:20,622 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:20,972 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:21,641 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:21,989 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:22,302 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:22,881 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:23,199 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:23,540 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:24,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:43:24,871 INFO L93 Difference]: Finished difference Result 3953 states and 6220 transitions. [2020-10-27 04:43:24,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:43:24,876 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-27 04:43:24,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:43:24,893 INFO L225 Difference]: With dead ends: 3953 [2020-10-27 04:43:24,893 INFO L226 Difference]: Without dead ends: 3006 [2020-10-27 04:43:24,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-27 04:43:24,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2020-10-27 04:43:25,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 2648. [2020-10-27 04:43:25,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2648 states. [2020-10-27 04:43:25,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 4130 transitions. [2020-10-27 04:43:25,202 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 4130 transitions. Word has length 158 [2020-10-27 04:43:25,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:43:25,203 INFO L481 AbstractCegarLoop]: Abstraction has 2648 states and 4130 transitions. [2020-10-27 04:43:25,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:43:25,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 4130 transitions. [2020-10-27 04:43:25,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-27 04:43:25,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:43:25,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:43:25,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 04:43:25,212 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:43:25,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:43:25,213 INFO L82 PathProgramCache]: Analyzing trace with hash -212923130, now seen corresponding path program 1 times [2020-10-27 04:43:25,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:43:25,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178507958] [2020-10-27 04:43:25,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:43:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:25,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:25,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:25,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:26,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:26,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:27,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:27,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:30,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:30,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-27 04:43:30,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:43:30,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-27 04:43:30,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:43:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:43:30,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-27 04:43:30,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:30,961 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:43:30,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:43:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:30,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:30,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:30,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:43:30,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:30,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:43:30,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:30,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:30,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:30,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:30,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:30,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:43:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:31,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:31,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:31,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:43:31,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:31,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-27 04:43:31,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:43:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 04:43:31,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:31,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:43:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:31,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:31,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:31,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:43:31,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:31,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:43:31,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:31,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:31,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:31,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:43:31,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:31,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:43:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:31,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:31,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:31,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 04:43:31,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:31,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:43:31,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:31,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:31,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:43:31,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:43:31,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:31,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-27 04:43:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:31,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:31,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:31,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:31,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:31,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:43:31,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:31,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:31,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:31,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:31,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:31,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 04:43:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:31,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:31,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:31,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:31,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:31,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:43:31,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:31,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:31,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-27 04:43:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:31,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:31,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:31,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:31,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:31,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:43:31,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:31,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:31,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:31,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:31,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:31,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-27 04:43:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:31,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:31,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:31,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:43:31,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:31,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:43:31,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:31,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:31,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:43:31,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:31,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:31,552 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 04:43:31,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178507958] [2020-10-27 04:43:31,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:43:31,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:43:31,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136706038] [2020-10-27 04:43:31,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:43:31,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:43:31,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:43:31,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:43:31,555 INFO L87 Difference]: Start difference. First operand 2648 states and 4130 transitions. Second operand 10 states. [2020-10-27 04:43:32,210 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:43:32,812 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 04:43:33,468 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-27 04:43:34,145 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:43:38,585 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:43:39,033 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:39,348 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:40,224 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:40,491 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:41,444 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:41,841 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:42,670 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:43,037 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:44,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:43:44,640 INFO L93 Difference]: Finished difference Result 8471 states and 13262 transitions. [2020-10-27 04:43:44,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 04:43:44,642 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-27 04:43:44,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:43:44,677 INFO L225 Difference]: With dead ends: 8471 [2020-10-27 04:43:44,677 INFO L226 Difference]: Without dead ends: 5859 [2020-10-27 04:43:44,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:43:44,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5859 states. [2020-10-27 04:43:45,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5859 to 5188. [2020-10-27 04:43:45,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5188 states. [2020-10-27 04:43:45,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5188 states to 5188 states and 7981 transitions. [2020-10-27 04:43:45,277 INFO L78 Accepts]: Start accepts. Automaton has 5188 states and 7981 transitions. Word has length 159 [2020-10-27 04:43:45,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:43:45,278 INFO L481 AbstractCegarLoop]: Abstraction has 5188 states and 7981 transitions. [2020-10-27 04:43:45,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:43:45,278 INFO L276 IsEmpty]: Start isEmpty. Operand 5188 states and 7981 transitions. [2020-10-27 04:43:45,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-27 04:43:45,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:43:45,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:43:45,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 04:43:45,293 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:43:45,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:43:45,293 INFO L82 PathProgramCache]: Analyzing trace with hash 642898794, now seen corresponding path program 1 times [2020-10-27 04:43:45,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:43:45,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602147098] [2020-10-27 04:43:45,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:43:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:45,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:45,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:45,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:45,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:46,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:46,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:50,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:50,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-27 04:43:50,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:43:50,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 04:43:50,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:43:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:43:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 04:43:50,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:50,990 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:43:50,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:43:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:51,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:51,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:51,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:43:51,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:51,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:43:51,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:51,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:51,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:51,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:51,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:51,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:43:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:51,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:51,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:51,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:43:51,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:51,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-27 04:43:51,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:51,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:43:51,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:51,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 04:43:51,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:51,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:43:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:51,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:51,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:51,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:43:51,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:51,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:43:51,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:51,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:51,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:51,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:43:51,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:51,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:43:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:51,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:51,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:51,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:43:51,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:51,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:43:51,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:51,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:51,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:43:51,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:43:51,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:51,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 04:43:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:51,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:51,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:51,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:51,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:51,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:43:51,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:51,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:51,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 04:43:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:51,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:51,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:51,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:51,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:51,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:43:51,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:51,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:51,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:51,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:51,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:51,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 04:43:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:51,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:51,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:51,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:51,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:51,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:43:51,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:51,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:51,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:51,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:51,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:51,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 04:43:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:51,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:51,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:51,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:43:51,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:51,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:43:51,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:43:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:51,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:51,647 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 04:43:51,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602147098] [2020-10-27 04:43:51,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:43:51,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:43:51,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849199756] [2020-10-27 04:43:51,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:43:51,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:43:51,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:43:51,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:43:51,650 INFO L87 Difference]: Start difference. First operand 5188 states and 7981 transitions. Second operand 10 states. [2020-10-27 04:43:52,331 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:43:53,001 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 292 [2020-10-27 04:43:53,908 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 295 [2020-10-27 04:43:55,160 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 294 DAG size of output: 288 [2020-10-27 04:44:00,660 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:44:01,139 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:01,436 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:01,780 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:02,801 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:03,184 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:03,382 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:04,115 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:04,573 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:04,760 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:05,520 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:05,997 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:06,205 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:07,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:44:07,916 INFO L93 Difference]: Finished difference Result 19621 states and 30223 transitions. [2020-10-27 04:44:07,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:44:07,917 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2020-10-27 04:44:07,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:44:08,003 INFO L225 Difference]: With dead ends: 19621 [2020-10-27 04:44:08,004 INFO L226 Difference]: Without dead ends: 14754 [2020-10-27 04:44:08,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-27 04:44:08,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14754 states. [2020-10-27 04:44:09,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14754 to 13290. [2020-10-27 04:44:09,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13290 states. [2020-10-27 04:44:09,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13290 states to 13290 states and 20199 transitions. [2020-10-27 04:44:09,639 INFO L78 Accepts]: Start accepts. Automaton has 13290 states and 20199 transitions. Word has length 160 [2020-10-27 04:44:09,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:44:09,640 INFO L481 AbstractCegarLoop]: Abstraction has 13290 states and 20199 transitions. [2020-10-27 04:44:09,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:44:09,640 INFO L276 IsEmpty]: Start isEmpty. Operand 13290 states and 20199 transitions. [2020-10-27 04:44:09,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-27 04:44:09,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:44:09,678 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:44:09,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 04:44:09,678 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:44:09,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:44:09,679 INFO L82 PathProgramCache]: Analyzing trace with hash 320640236, now seen corresponding path program 1 times [2020-10-27 04:44:09,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:44:09,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716493991] [2020-10-27 04:44:09,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:44:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:09,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:09,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:10,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:10,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:10,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:11,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:11,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:14,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:14,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-27 04:44:14,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:44:14,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-27 04:44:14,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:14,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:44:14,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-27 04:44:14,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 04:44:14,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:15,453 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:44:15,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:44:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:15,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:15,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:15,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:44:15,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:15,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:44:15,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:15,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:15,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:44:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:15,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:15,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:15,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:44:15,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:15,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-27 04:44:15,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:15,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:15,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 04:44:15,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:15,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:44:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:15,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:15,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:15,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:44:15,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:15,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:44:15,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:15,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:44:15,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:15,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:44:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:15,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:15,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:15,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:44:15,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:15,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:44:15,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:15,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:15,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:15,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:44:15,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:15,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 04:44:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:15,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:15,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:15,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:44:15,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:15,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:44:15,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:15,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:44:15,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:44:15,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:44:15,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:15,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 04:44:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:15,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:15,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:15,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:44:15,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:15,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:44:15,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:15,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:15,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:44:15,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:15,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:15,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 04:44:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:15,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:15,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:15,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:44:15,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:15,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:44:15,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:15,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:15,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:44:15,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:15,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:15,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 04:44:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:15,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:15,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:15,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:44:15,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:15,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:44:15,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:15,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:15,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:44:15,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:15,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:15,941 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 04:44:15,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716493991] [2020-10-27 04:44:15,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:44:15,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:44:15,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641884437] [2020-10-27 04:44:15,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:44:15,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:44:15,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:44:15,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:44:15,944 INFO L87 Difference]: Start difference. First operand 13290 states and 20199 transitions. Second operand 10 states. [2020-10-27 04:44:16,575 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:44:19,354 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:44:19,862 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:20,157 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:20,617 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:44:20,955 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:21,406 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:44:21,978 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:23,401 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:23,847 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 04:44:24,460 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-27 04:44:24,777 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 04:44:25,062 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:44:25,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:44:25,216 INFO L93 Difference]: Finished difference Result 29982 states and 45915 transitions. [2020-10-27 04:44:25,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:44:25,221 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2020-10-27 04:44:25,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:44:25,306 INFO L225 Difference]: With dead ends: 29982 [2020-10-27 04:44:25,307 INFO L226 Difference]: Without dead ends: 23235 [2020-10-27 04:44:25,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:44:25,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23235 states. [2020-10-27 04:44:27,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23235 to 20030. [2020-10-27 04:44:27,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20030 states. [2020-10-27 04:44:27,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20030 states to 20030 states and 30491 transitions. [2020-10-27 04:44:27,191 INFO L78 Accepts]: Start accepts. Automaton has 20030 states and 30491 transitions. Word has length 160 [2020-10-27 04:44:27,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:44:27,192 INFO L481 AbstractCegarLoop]: Abstraction has 20030 states and 30491 transitions. [2020-10-27 04:44:27,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:44:27,192 INFO L276 IsEmpty]: Start isEmpty. Operand 20030 states and 30491 transitions. [2020-10-27 04:44:27,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-27 04:44:27,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:44:27,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:44:27,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 04:44:27,236 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:44:27,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:44:27,237 INFO L82 PathProgramCache]: Analyzing trace with hash 92205854, now seen corresponding path program 1 times [2020-10-27 04:44:27,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:44:27,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346557883] [2020-10-27 04:44:27,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:44:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:27,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:27,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:27,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:27,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:27,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:28,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:29,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:32,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:32,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:32,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-27 04:44:32,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 04:44:32,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-27 04:44:32,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:32,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:44:32,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:44:32,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-27 04:44:32,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:32,932 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:44:32,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:44:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:32,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:32,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:32,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:44:32,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:32,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:44:32,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:32,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:32,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:44:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:32,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:33,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:33,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:44:33,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:33,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-27 04:44:33,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:33,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:44:33,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:33,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:44:33,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:33,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:44:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:33,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:33,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:33,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:44:33,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:33,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:44:33,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:33,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:33,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:33,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:44:33,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:33,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:44:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:33,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:33,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:33,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:44:33,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:33,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:44:33,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:33,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:33,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:33,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:44:33,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:33,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 04:44:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:33,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:33,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:33,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 04:44:33,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:33,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:44:33,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:33,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:33,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:44:33,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:44:33,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:33,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 04:44:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:33,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:33,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:33,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:44:33,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:33,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:44:33,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:33,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:33,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:44:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:33,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:33,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-27 04:44:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:33,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:33,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:33,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:44:33,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:33,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:44:33,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:33,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:33,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:44:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:33,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:33,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-27 04:44:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:33,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:33,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:33,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:44:33,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:33,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:44:33,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:44:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:33,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:33,511 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 04:44:33,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346557883] [2020-10-27 04:44:33,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:44:33,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:44:33,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805560814] [2020-10-27 04:44:33,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:44:33,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:44:33,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:44:33,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:44:33,513 INFO L87 Difference]: Start difference. First operand 20030 states and 30491 transitions. Second operand 10 states. [2020-10-27 04:44:34,168 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:44:34,903 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-27 04:44:35,896 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-27 04:44:37,257 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-27 04:44:44,147 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:44:44,606 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:44,882 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:45,301 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:46,145 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:46,466 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:46,872 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:47,594 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:47,866 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:48,548 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:48,976 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:49,385 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:50,056 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:52,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:44:52,614 INFO L93 Difference]: Finished difference Result 75326 states and 115087 transitions. [2020-10-27 04:44:52,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:44:52,615 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-10-27 04:44:52,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:44:52,847 INFO L225 Difference]: With dead ends: 75326 [2020-10-27 04:44:52,847 INFO L226 Difference]: Without dead ends: 56178 [2020-10-27 04:44:52,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-27 04:44:52,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56178 states. [2020-10-27 04:44:56,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56178 to 49655. [2020-10-27 04:44:56,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49655 states. [2020-10-27 04:44:57,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49655 states to 49655 states and 74831 transitions. [2020-10-27 04:44:57,035 INFO L78 Accepts]: Start accepts. Automaton has 49655 states and 74831 transitions. Word has length 163 [2020-10-27 04:44:57,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:44:57,035 INFO L481 AbstractCegarLoop]: Abstraction has 49655 states and 74831 transitions. [2020-10-27 04:44:57,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:44:57,035 INFO L276 IsEmpty]: Start isEmpty. Operand 49655 states and 74831 transitions. [2020-10-27 04:44:57,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-27 04:44:57,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:44:57,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:44:57,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 04:44:57,288 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:44:57,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:44:57,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1014432144, now seen corresponding path program 1 times [2020-10-27 04:44:57,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:44:57,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750708611] [2020-10-27 04:44:57,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:44:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:57,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:57,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:57,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:57,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:58,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:58,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:58,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:02,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:45:02,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-27 04:45:02,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:45:02,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-27 04:45:02,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:45:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:45:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:45:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-27 04:45:02,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:45:02,986 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:45:02,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:45:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:45:02,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:03,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:45:03,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:45:03,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:45:03,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:45:03,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:45:03,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:45:03,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:45:03,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:45:03,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:45:03,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:45:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:45:03,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:03,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:45:03,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:45:03,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:45:03,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-27 04:45:03,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:45:03,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:45:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:45:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:45:03,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:45:03,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:45:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:45:03,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:03,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:45:03,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:45:03,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:45:03,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:45:03,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:45:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:45:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:45:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:45:03,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:45:03,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:45:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:45:03,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:03,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:45:03,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:45:03,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:45:03,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:45:03,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:45:03,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:45:03,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:45:03,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:45:03,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:45:03,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 04:45:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:45:03,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:03,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:45:03,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 04:45:03,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:45:03,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:45:03,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:45:03,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:45:03,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:45:03,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:45:03,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:45:03,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 04:45:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:45:03,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:03,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:45:03,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:45:03,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:45:03,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:45:03,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:45:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:45:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:45:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:45:03,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:45:03,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 04:45:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:45:03,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:03,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:45:03,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:45:03,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:45:03,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:45:03,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:45:03,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:45:03,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:45:03,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:45:03,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:45:03,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 04:45:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:45:03,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:03,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:45:03,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:45:03,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:45:03,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:45:03,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:45:03,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:45:03,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:45:03,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:45:03,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:45:03,588 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 04:45:03,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750708611] [2020-10-27 04:45:03,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:45:03,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:45:03,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034412085] [2020-10-27 04:45:03,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:45:03,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:45:03,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:45:03,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:45:03,591 INFO L87 Difference]: Start difference. First operand 49655 states and 74831 transitions. Second operand 10 states. [2020-10-27 04:45:04,348 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:45:05,089 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 291 [2020-10-27 04:45:05,998 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-27 04:45:08,153 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 293 DAG size of output: 291 [2020-10-27 04:45:16,931 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:45:17,535 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:45:17,848 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:45:18,112 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:45:19,426 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:45:19,807 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:45:20,211 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:45:21,343 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:45:21,674 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:45:22,255 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:45:22,987 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:45:23,493 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:45:24,146 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:45:28,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:45:28,983 INFO L93 Difference]: Finished difference Result 183786 states and 277434 transitions. [2020-10-27 04:45:28,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:45:28,984 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-27 04:45:28,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:45:29,694 INFO L225 Difference]: With dead ends: 183786 [2020-10-27 04:45:29,695 INFO L226 Difference]: Without dead ends: 135267 [2020-10-27 04:45:30,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-27 04:45:30,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135267 states. [2020-10-27 04:45:40,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135267 to 121712. [2020-10-27 04:45:40,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121712 states. [2020-10-27 04:45:40,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121712 states to 121712 states and 180564 transitions. [2020-10-27 04:45:40,656 INFO L78 Accepts]: Start accepts. Automaton has 121712 states and 180564 transitions. Word has length 164 [2020-10-27 04:45:40,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:45:40,657 INFO L481 AbstractCegarLoop]: Abstraction has 121712 states and 180564 transitions. [2020-10-27 04:45:40,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:45:40,657 INFO L276 IsEmpty]: Start isEmpty. Operand 121712 states and 180564 transitions. [2020-10-27 04:45:41,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-27 04:45:41,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:45:41,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:45:41,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 04:45:41,078 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:45:41,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:45:41,078 INFO L82 PathProgramCache]: Analyzing trace with hash 545527294, now seen corresponding path program 1 times [2020-10-27 04:45:41,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:45:41,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290606290] [2020-10-27 04:45:41,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:45:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:45:41,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:41,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:41,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:41,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:41,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:43,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:43,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:43,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:45:43,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking...