/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:07:04,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:07:04,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:07:05,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:07:05,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:07:05,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:07:05,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:07:05,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:07:05,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:07:05,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:07:05,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:07:05,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:07:05,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:07:05,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:07:05,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:07:05,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:07:05,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:07:05,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:07:05,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:07:05,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:07:05,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:07:05,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:07:05,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:07:05,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:07:05,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:07:05,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:07:05,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:07:05,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:07:05,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:07:05,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:07:05,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:07:05,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:07:05,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:07:05,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:07:05,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:07:05,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:07:05,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:07:05,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:07:05,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:07:05,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:07:05,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:07:05,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 23:07:05,166 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:07:05,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:07:05,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:07:05,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:07:05,171 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:07:05,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:07:05,171 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:07:05,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:07:05,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:07:05,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:07:05,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:07:05,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:07:05,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:07:05,174 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:07:05,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:07:05,174 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:07:05,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:07:05,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:07:05,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:07:05,175 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:07:05,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:07:05,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:07:05,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:07:05,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:07:05,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:07:05,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:07:05,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:07:05,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:07:05,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:07:05,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:07:05,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:07:05,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:07:05,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:07:05,633 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:07:05,633 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:07:05,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c [2020-10-27 23:07:05,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3171d7c3a/cdb5161840f94c50b81e5f884e814439/FLAG281f223ca [2020-10-27 23:07:06,386 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:07:06,386 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c [2020-10-27 23:07:06,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3171d7c3a/cdb5161840f94c50b81e5f884e814439/FLAG281f223ca [2020-10-27 23:07:06,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3171d7c3a/cdb5161840f94c50b81e5f884e814439 [2020-10-27 23:07:06,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:07:06,706 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:07:06,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:07:06,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:07:06,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:07:06,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:07:06" (1/1) ... [2020-10-27 23:07:06,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79098a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:06, skipping insertion in model container [2020-10-27 23:07:06,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:07:06" (1/1) ... [2020-10-27 23:07:06,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:07:06,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:07:07,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:07:07,178 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:07:07,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:07:07,280 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:07:07,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:07 WrapperNode [2020-10-27 23:07:07,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:07:07,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:07:07,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:07:07,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:07:07,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:07" (1/1) ... [2020-10-27 23:07:07,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:07" (1/1) ... [2020-10-27 23:07:07,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:07" (1/1) ... [2020-10-27 23:07:07,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:07" (1/1) ... [2020-10-27 23:07:07,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:07" (1/1) ... [2020-10-27 23:07:07,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:07" (1/1) ... [2020-10-27 23:07:07,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:07" (1/1) ... [2020-10-27 23:07:07,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:07:07,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:07:07,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:07:07,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:07:07,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:07:07,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:07:07,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:07:07,479 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:07:07,480 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:07:07,480 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 23:07:07,481 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 23:07:07,481 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 23:07:07,481 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 23:07:07,481 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 23:07:07,481 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-27 23:07:07,482 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:07:07,483 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:07:07,483 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:07:07,483 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:07:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:07:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:07:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:07:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:07:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:07:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:07:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 23:07:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:07:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:07:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:07:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:07:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 23:07:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 23:07:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 23:07:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 23:07:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 23:07:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-27 23:07:07,488 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:07:07,488 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:07:07,488 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:07:07,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:07:07,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:07:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:07:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:07:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:07:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:07:08,650 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:07:08,651 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:07:08,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:07:08 BoogieIcfgContainer [2020-10-27 23:07:08,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:07:08,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:07:08,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:07:08,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:07:08,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:07:06" (1/3) ... [2020-10-27 23:07:08,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@682f4d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:07:08, skipping insertion in model container [2020-10-27 23:07:08,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:07" (2/3) ... [2020-10-27 23:07:08,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@682f4d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:07:08, skipping insertion in model container [2020-10-27 23:07:08,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:07:08" (3/3) ... [2020-10-27 23:07:08,664 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c [2020-10-27 23:07:08,677 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:07:08,683 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:07:08,698 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:07:08,732 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:07:08,732 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:07:08,732 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:07:08,732 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:07:08,732 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:07:08,733 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:07:08,733 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:07:08,733 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:07:08,757 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states. [2020-10-27 23:07:08,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 23:07:08,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:08,770 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] [2020-10-27 23:07:08,771 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:08,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:08,778 INFO L82 PathProgramCache]: Analyzing trace with hash 259878366, now seen corresponding path program 1 times [2020-10-27 23:07:08,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:08,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4679940] [2020-10-27 23:07:08,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:09,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:09,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:09,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:07:09,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:09,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 509 [2020-10-27 23:07:09,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:09,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:09,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:07:09,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:09,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:07:10,141 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:10,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:10,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:10,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:10,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:10,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:10,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 23:07:10,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:10,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:10,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:10,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:10,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:10,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:10,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:10,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:10,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:10,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:10,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:07:10,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:10,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:10,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:07:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:10,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:10,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:10,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:10,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:10,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:10,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:07:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:10,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:10,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:07:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:10,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:10,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:10,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:10,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:10,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:07:10,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:10,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:10,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:10,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:10,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 23:07:10,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 23:07:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:10,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:10,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:10,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:10,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:10,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:07:10,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:10,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:10,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:10,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:10,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:10,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 23:07:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:10,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:10,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:10,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:10,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:10,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:07:10,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:10,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:10,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:10,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:10,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:10,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:07:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:10,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:10,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:10,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:10,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:10,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:07:10,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:10,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:10,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:10,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:10,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:10,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 23:07:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:10,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:10,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:10,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:10,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:10,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:10,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:10,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:10,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:10,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:10,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:10,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 23:07:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:10,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:10,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:10,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:10,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:10,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:10,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:10,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:10,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:10,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:10,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:10,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 23:07:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:10,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:10,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:10,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:10,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:10,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:10,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4679940] [2020-10-27 23:07:10,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:10,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 23:07:10,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606917076] [2020-10-27 23:07:10,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 23:07:10,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:10,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 23:07:10,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 23:07:10,710 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 9 states. [2020-10-27 23:07:12,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:12,529 INFO L93 Difference]: Finished difference Result 317 states and 478 transitions. [2020-10-27 23:07:12,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 23:07:12,531 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-10-27 23:07:12,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:12,544 INFO L225 Difference]: With dead ends: 317 [2020-10-27 23:07:12,544 INFO L226 Difference]: Without dead ends: 186 [2020-10-27 23:07:12,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-27 23:07:12,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-10-27 23:07:12,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 179. [2020-10-27 23:07:12,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-27 23:07:12,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 276 transitions. [2020-10-27 23:07:12,617 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 276 transitions. Word has length 75 [2020-10-27 23:07:12,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:12,617 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 276 transitions. [2020-10-27 23:07:12,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 23:07:12,617 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 276 transitions. [2020-10-27 23:07:12,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 23:07:12,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:12,622 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] [2020-10-27 23:07:12,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:07:12,622 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:12,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:12,623 INFO L82 PathProgramCache]: Analyzing trace with hash 461702300, now seen corresponding path program 1 times [2020-10-27 23:07:12,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:12,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669020588] [2020-10-27 23:07:12,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:12,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:13,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:13,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:07:13,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:13,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 987 [2020-10-27 23:07:13,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:13,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:07:13,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 23:07:13,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:07:13,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:14,018 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:14,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:14,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:14,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:14,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:14,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:14,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 23:07:14,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:14,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:14,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:14,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:14,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:14,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:14,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:14,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:14,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:14,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:14,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:07:14,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:14,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:14,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:14,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:14,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:14,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:07:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:14,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:14,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:14,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:14,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:14,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:07:14,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:14,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:14,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:07:14,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:14,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:14,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:07:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:14,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:14,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:14,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:14,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:14,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:07:14,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:14,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:14,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:14,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:14,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:14,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 23:07:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:14,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:14,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:14,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:14,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:14,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:07:14,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:14,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:14,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:14,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:14,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:14,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 23:07:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:14,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:14,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:14,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:14,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:14,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:14,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:14,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:07:14,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:07:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:14,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:14,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:14,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:14,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:14,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:07:14,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:14,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:14,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:14,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:14,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:14,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 23:07:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:14,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:14,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:14,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:14,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:14,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:14,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:14,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:14,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:14,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:14,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:14,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 23:07:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:14,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:14,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:14,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:14,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:14,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:07:14,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:14,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:14,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:14,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:14,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:14,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 23:07:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:14,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:14,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:14,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:14,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:14,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:14,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:14,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:14,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:14,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:14,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:14,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:14,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669020588] [2020-10-27 23:07:14,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:14,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 23:07:14,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843478539] [2020-10-27 23:07:14,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 23:07:14,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:14,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 23:07:14,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-27 23:07:14,454 INFO L87 Difference]: Start difference. First operand 179 states and 276 transitions. Second operand 15 states. [2020-10-27 23:07:14,761 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:07:15,020 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-27 23:07:15,397 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-27 23:07:15,667 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-27 23:07:18,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:18,250 INFO L93 Difference]: Finished difference Result 312 states and 466 transitions. [2020-10-27 23:07:18,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 23:07:18,251 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 75 [2020-10-27 23:07:18,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:18,257 INFO L225 Difference]: With dead ends: 312 [2020-10-27 23:07:18,257 INFO L226 Difference]: Without dead ends: 186 [2020-10-27 23:07:18,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-10-27 23:07:18,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-10-27 23:07:18,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 179. [2020-10-27 23:07:18,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-27 23:07:18,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 235 transitions. [2020-10-27 23:07:18,324 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 235 transitions. Word has length 75 [2020-10-27 23:07:18,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:18,324 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 235 transitions. [2020-10-27 23:07:18,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 23:07:18,324 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 235 transitions. [2020-10-27 23:07:18,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-27 23:07:18,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:18,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:07:18,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:07:18,332 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:18,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:18,332 INFO L82 PathProgramCache]: Analyzing trace with hash -239189786, now seen corresponding path program 1 times [2020-10-27 23:07:18,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:18,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620110964] [2020-10-27 23:07:18,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:18,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:18,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:18,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:18,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:22,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:23,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:23,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-27 23:07:23,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:07:23,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 23:07:23,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:23,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:23,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 23:07:23,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 23:07:23,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:07:23,746 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:23,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:23,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:23,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:23,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:23,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:23,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:07:23,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:23,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:23,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:23,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:23,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:23,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:23,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:23,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:23,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:07:23,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:23,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 23:07:23,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:23,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:23,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:23,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 23:07:23,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:23,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:07:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:23,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:23,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:23,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:23,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:23,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:23,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:23,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:23,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:23,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:23,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:07:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:23,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:23,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:23,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:23,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:23,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:07:23,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:23,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:23,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:23,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:23,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:23,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:07:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:23,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:23,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:23,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:23,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:23,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:07:23,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:23,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:23,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:23,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:07:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:23,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:24,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:24,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:24,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:24,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:07:24,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:24,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:24,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:24,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:24,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:24,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:07:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:24,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:24,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:24,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:24,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:24,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:07:24,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:24,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:24,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 23:07:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:24,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:24,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:24,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:24,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:24,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:07:24,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:24,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:24,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:24,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 23:07:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:24,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:24,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:24,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:24,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:24,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 23:07:24,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:07:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:07:24,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:24,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 23:07:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:24,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:24,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:24,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:24,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:24,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:24,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:24,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:24,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:24,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620110964] [2020-10-27 23:07:24,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:24,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:07:24,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889144889] [2020-10-27 23:07:24,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:07:24,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:24,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:07:24,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:07:24,254 INFO L87 Difference]: Start difference. First operand 179 states and 235 transitions. Second operand 12 states. [2020-10-27 23:07:24,506 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:07:27,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:27,548 INFO L93 Difference]: Finished difference Result 420 states and 582 transitions. [2020-10-27 23:07:27,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:07:27,549 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 115 [2020-10-27 23:07:27,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:27,554 INFO L225 Difference]: With dead ends: 420 [2020-10-27 23:07:27,554 INFO L226 Difference]: Without dead ends: 300 [2020-10-27 23:07:27,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:07:27,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-10-27 23:07:27,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 284. [2020-10-27 23:07:27,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-10-27 23:07:27,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 389 transitions. [2020-10-27 23:07:27,627 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 389 transitions. Word has length 115 [2020-10-27 23:07:27,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:27,631 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 389 transitions. [2020-10-27 23:07:27,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:07:27,631 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 389 transitions. [2020-10-27 23:07:27,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-27 23:07:27,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:27,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:07:27,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:07:27,648 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:27,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:27,649 INFO L82 PathProgramCache]: Analyzing trace with hash 96478624, now seen corresponding path program 1 times [2020-10-27 23:07:27,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:27,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282897582] [2020-10-27 23:07:27,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:27,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:27,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:27,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:28,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:30,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:32,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:32,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 23:07:32,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:07:32,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 23:07:32,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-27 23:07:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 23:07:32,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:32,947 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:32,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:32,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:32,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:32,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:32,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:32,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:07:32,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:32,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:32,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:32,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:33,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:33,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:07:33,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:33,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 23:07:33,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:33,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:33,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:33,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 23:07:33,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:33,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:07:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:33,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:33,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:33,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:33,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:33,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:33,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:33,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:33,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:07:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:33,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:33,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:33,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:33,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:33,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:07:33,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:33,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:33,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:33,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:33,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:33,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:07:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:33,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:33,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:33,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:33,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:33,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:07:33,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:33,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:33,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:33,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:33,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:33,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:07:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:33,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:33,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:33,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:33,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:33,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:07:33,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:33,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:33,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:33,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:33,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:33,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:07:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:33,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:33,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:33,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:33,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:33,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:07:33,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:33,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:33,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:33,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:33,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:33,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 23:07:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:33,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:33,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:33,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:33,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:33,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:07:33,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:33,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:33,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:07:33,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:07:33,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:33,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 23:07:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:33,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:33,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:33,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:33,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:33,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:07:33,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:33,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:33,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:33,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:33,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:07:33,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 23:07:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:33,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:33,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:33,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:33,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:33,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:33,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:33,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:33,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:33,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:33,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:33,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282897582] [2020-10-27 23:07:33,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:33,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:07:33,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476993630] [2020-10-27 23:07:33,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:07:33,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:33,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:07:33,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:07:33,346 INFO L87 Difference]: Start difference. First operand 284 states and 389 transitions. Second operand 12 states. [2020-10-27 23:07:33,619 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:07:36,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:36,594 INFO L93 Difference]: Finished difference Result 734 states and 1037 transitions. [2020-10-27 23:07:36,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:07:36,595 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-10-27 23:07:36,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:36,600 INFO L225 Difference]: With dead ends: 734 [2020-10-27 23:07:36,601 INFO L226 Difference]: Without dead ends: 509 [2020-10-27 23:07:36,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:07:36,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2020-10-27 23:07:36,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 482. [2020-10-27 23:07:36,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-10-27 23:07:36,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 677 transitions. [2020-10-27 23:07:36,670 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 677 transitions. Word has length 116 [2020-10-27 23:07:36,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:36,673 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 677 transitions. [2020-10-27 23:07:36,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:07:36,673 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 677 transitions. [2020-10-27 23:07:36,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-27 23:07:36,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:36,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:07:36,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:07:36,676 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:36,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:36,676 INFO L82 PathProgramCache]: Analyzing trace with hash -93500594, now seen corresponding path program 1 times [2020-10-27 23:07:36,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:36,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008321971] [2020-10-27 23:07:36,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:36,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:36,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:36,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:36,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:41,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:41,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 23:07:41,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:07:41,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 23:07:41,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:41,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:41,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 23:07:41,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 23:07:41,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:42,007 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:42,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:42,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:42,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:42,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:42,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:42,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:07:42,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:42,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:42,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:42,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:42,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:42,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:07:42,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:42,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 23:07:42,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 23:07:42,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:42,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:07:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:42,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:42,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:42,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:42,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:42,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:07:42,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:42,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:42,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:42,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:42,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:42,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:07:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:42,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:42,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:42,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:42,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:42,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:42,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:42,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:42,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:42,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:42,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:42,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:07:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:42,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:42,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:42,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:42,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:42,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:42,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:42,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:42,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:07:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:42,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:42,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:42,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:42,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:42,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:42,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:42,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:42,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:42,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:42,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:42,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:07:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:42,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:42,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:42,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:42,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:42,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:07:42,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:42,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:42,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:07:42,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:07:42,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:42,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 23:07:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:42,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:42,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:42,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:42,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:42,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:42,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:42,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:42,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:42,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:42,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 23:07:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:42,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:42,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:42,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:42,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:42,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:42,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:42,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:42,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:42,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:42,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:42,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-27 23:07:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:42,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:42,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:42,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:42,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:42,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:07:42,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:42,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:42,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:42,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:42,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:42,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:42,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008321971] [2020-10-27 23:07:42,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:42,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:07:42,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203057932] [2020-10-27 23:07:42,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:07:42,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:42,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:07:42,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:07:42,369 INFO L87 Difference]: Start difference. First operand 482 states and 677 transitions. Second operand 12 states. [2020-10-27 23:07:42,634 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:07:45,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:45,883 INFO L93 Difference]: Finished difference Result 1324 states and 1885 transitions. [2020-10-27 23:07:45,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:07:45,883 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-10-27 23:07:45,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:45,894 INFO L225 Difference]: With dead ends: 1324 [2020-10-27 23:07:45,894 INFO L226 Difference]: Without dead ends: 901 [2020-10-27 23:07:45,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:07:45,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2020-10-27 23:07:45,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 854. [2020-10-27 23:07:45,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 854 states. [2020-10-27 23:07:45,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1213 transitions. [2020-10-27 23:07:45,995 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1213 transitions. Word has length 117 [2020-10-27 23:07:45,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:45,996 INFO L481 AbstractCegarLoop]: Abstraction has 854 states and 1213 transitions. [2020-10-27 23:07:45,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:07:45,996 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1213 transitions. [2020-10-27 23:07:45,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-27 23:07:45,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:45,997 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:07:45,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:07:45,998 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:45,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:45,999 INFO L82 PathProgramCache]: Analyzing trace with hash -70834178, now seen corresponding path program 1 times [2020-10-27 23:07:45,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:45,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461581310] [2020-10-27 23:07:45,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:46,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:46,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:46,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-27 23:07:49,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:07:49,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3202 [2020-10-27 23:07:49,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:49,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 23:07:49,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 23:07:49,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,542 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:49,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:49,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:07:49,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:49,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:49,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:49,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:07:49,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 23:07:49,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:49,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:49,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 23:07:49,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:07:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:49,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:49,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:49,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:49,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:49,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:07:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:49,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:49,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:49,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:49,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:49,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:07:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:49,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:07:49,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:49,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:49,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:49,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:07:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:49,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:07:49,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:49,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:07:49,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:07:49,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:07:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:49,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:07:49,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:49,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:49,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:49,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:07:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:49,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:49,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:49,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 23:07:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:49,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:07:49,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:49,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:49,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:49,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:07:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:49,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:07:49,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:49,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:49,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:49,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:49,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461581310] [2020-10-27 23:07:49,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:49,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:07:49,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751839710] [2020-10-27 23:07:49,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:07:49,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:49,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:07:49,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:07:49,979 INFO L87 Difference]: Start difference. First operand 854 states and 1213 transitions. Second operand 12 states. [2020-10-27 23:07:50,226 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:07:53,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:53,542 INFO L93 Difference]: Finished difference Result 2428 states and 3457 transitions. [2020-10-27 23:07:53,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:07:53,543 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 118 [2020-10-27 23:07:53,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:53,559 INFO L225 Difference]: With dead ends: 2428 [2020-10-27 23:07:53,560 INFO L226 Difference]: Without dead ends: 1633 [2020-10-27 23:07:53,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:07:53,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2020-10-27 23:07:53,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1550. [2020-10-27 23:07:53,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1550 states. [2020-10-27 23:07:53,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 2205 transitions. [2020-10-27 23:07:53,733 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 2205 transitions. Word has length 118 [2020-10-27 23:07:53,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:53,734 INFO L481 AbstractCegarLoop]: Abstraction has 1550 states and 2205 transitions. [2020-10-27 23:07:53,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:07:53,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 2205 transitions. [2020-10-27 23:07:53,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-27 23:07:53,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:53,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:07:53,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:07:53,739 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:53,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:53,740 INFO L82 PathProgramCache]: Analyzing trace with hash -425861290, now seen corresponding path program 1 times [2020-10-27 23:07:53,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:53,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757935931] [2020-10-27 23:07:53,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:53,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:53,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:55,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:55,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-27 23:07:55,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:07:55,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1696 [2020-10-27 23:07:55,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:07:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 23:07:55,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:55,720 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:55,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:55,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:55,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:55,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:55,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:55,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 23:07:55,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:55,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:55,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:55,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:55,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:55,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:55,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:55,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:55,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:07:55,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:55,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 23:07:55,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:55,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:55,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:55,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:07:55,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:55,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:07:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:55,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:55,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:55,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:55,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:55,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:55,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:55,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:55,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:07:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:55,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:55,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:55,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:55,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:55,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:55,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:55,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:55,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:55,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:55,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:55,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:07:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:55,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:55,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:55,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:55,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:55,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:07:55,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:55,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:55,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:07:55,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:07:55,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:55,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:07:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:55,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:55,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:55,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:55,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:55,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:55,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:55,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:55,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:55,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:55,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:56,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:07:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:56,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:56,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:56,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:56,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:56,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:56,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:56,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:56,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:56,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:56,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:56,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 23:07:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:56,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:56,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:56,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:56,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:56,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:56,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:56,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:56,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:56,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:56,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 23:07:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:56,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:56,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:56,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:56,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:56,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:56,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:56,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:56,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:56,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:56,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:56,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 23:07:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:56,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:56,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:56,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:56,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:56,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:07:56,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:56,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:56,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:56,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:56,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:56,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:56,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757935931] [2020-10-27 23:07:56,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:56,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:07:56,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933684864] [2020-10-27 23:07:56,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:07:56,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:56,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:07:56,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:07:56,143 INFO L87 Difference]: Start difference. First operand 1550 states and 2205 transitions. Second operand 12 states. [2020-10-27 23:07:56,395 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:07:59,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:59,739 INFO L93 Difference]: Finished difference Result 4484 states and 6353 transitions. [2020-10-27 23:07:59,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:07:59,740 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 119 [2020-10-27 23:07:59,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:59,757 INFO L225 Difference]: With dead ends: 4484 [2020-10-27 23:07:59,757 INFO L226 Difference]: Without dead ends: 2993 [2020-10-27 23:07:59,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:07:59,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2020-10-27 23:07:59,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 2846. [2020-10-27 23:07:59,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2846 states. [2020-10-27 23:08:00,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2846 states to 2846 states and 4029 transitions. [2020-10-27 23:08:00,010 INFO L78 Accepts]: Start accepts. Automaton has 2846 states and 4029 transitions. Word has length 119 [2020-10-27 23:08:00,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:00,011 INFO L481 AbstractCegarLoop]: Abstraction has 2846 states and 4029 transitions. [2020-10-27 23:08:00,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:08:00,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2846 states and 4029 transitions. [2020-10-27 23:08:00,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-27 23:08:00,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:00,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:08:00,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:08:00,013 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:00,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:00,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1248108698, now seen corresponding path program 1 times [2020-10-27 23:08:00,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:00,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696060980] [2020-10-27 23:08:00,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:00,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:00,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:03,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:03,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-27 23:08:03,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:08:03,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3573 [2020-10-27 23:08:03,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 23:08:03,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 23:08:03,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 23:08:03,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:03,926 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:08:03,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:03,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:03,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:03,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:03,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:03,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:08:03,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:03,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:03,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:03,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:03,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:03,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:03,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:08:04,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 23:08:04,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:08:04,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:04,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 23:08:04,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:08:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:04,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:08:04,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:04,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:04,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:04,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:08:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:04,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:08:04,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:04,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:04,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:08:04,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:08:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:04,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:08:04,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:04,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:04,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:04,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:08:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:04,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 23:08:04,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:04,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:04,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:04,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:08:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:04,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:08:04,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:04,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:08:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:04,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:08:04,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:04,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 23:08:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:04,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:08:04,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:04,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:04,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:04,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:08:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:08:04,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:08:04,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:04,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:08:04,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:08:04,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:04,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1696060980] [2020-10-27 23:08:04,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:04,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-27 23:08:04,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863028857] [2020-10-27 23:08:04,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 23:08:04,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:04,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 23:08:04,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:08:04,898 INFO L87 Difference]: Start difference. First operand 2846 states and 4029 transitions. Second operand 22 states. [2020-10-27 23:08:05,563 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 196 [2020-10-27 23:08:05,855 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-27 23:08:06,156 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:08:06,448 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-27 23:08:06,743 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-27 23:08:07,071 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-27 23:08:07,493 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-27 23:08:07,994 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-27 23:08:08,465 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-27 23:08:08,939 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-27 23:08:09,409 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-27 23:08:09,871 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-27 23:08:10,398 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:08:17,151 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-27 23:08:17,439 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-27 23:08:17,742 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-27 23:08:18,064 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-27 23:08:18,338 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-27 23:08:21,867 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:08:26,693 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:08:31,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:31,478 INFO L93 Difference]: Finished difference Result 41861 states and 59479 transitions. [2020-10-27 23:08:31,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2020-10-27 23:08:31,479 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 120 [2020-10-27 23:08:31,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:31,761 INFO L225 Difference]: With dead ends: 41861 [2020-10-27 23:08:31,761 INFO L226 Difference]: Without dead ends: 39074 [2020-10-27 23:08:31,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7803 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=3506, Invalid=17664, Unknown=0, NotChecked=0, Total=21170 [2020-10-27 23:08:31,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39074 states. [2020-10-27 23:08:35,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39074 to 37166. [2020-10-27 23:08:35,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37166 states. [2020-10-27 23:08:35,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37166 states to 37166 states and 53133 transitions. [2020-10-27 23:08:35,705 INFO L78 Accepts]: Start accepts. Automaton has 37166 states and 53133 transitions. Word has length 120 [2020-10-27 23:08:35,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:35,705 INFO L481 AbstractCegarLoop]: Abstraction has 37166 states and 53133 transitions. [2020-10-27 23:08:35,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 23:08:35,706 INFO L276 IsEmpty]: Start isEmpty. Operand 37166 states and 53133 transitions. [2020-10-27 23:08:35,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-27 23:08:35,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:35,708 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] [2020-10-27 23:08:35,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:08:35,708 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:35,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:35,709 INFO L82 PathProgramCache]: Analyzing trace with hash 75586319, now seen corresponding path program 1 times [2020-10-27 23:08:35,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:35,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1425530193] [2020-10-27 23:08:35,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:36,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:37,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:37,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-27 23:08:37,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:08:37,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2188 [2020-10-27 23:08:37,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:37,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:08:37,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-27 23:08:37,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:08:37,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:38,293 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:08:38,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:38,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:38,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:38,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:38,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:38,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 23:08:38,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:38,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:38,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:38,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:38,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:38,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:38,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:38,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:38,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:08:38,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:38,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:08:38,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:38,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:38,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:08:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:38,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:38,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:38,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:38,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:38,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:08:38,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:38,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:38,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:38,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:38,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:38,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:08:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:38,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:38,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:38,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:38,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:38,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:38,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:38,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:38,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:08:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:38,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:38,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:38,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:38,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:38,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:38,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:38,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:38,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:08:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:38,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:38,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:38,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:38,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:38,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:38,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:38,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:38,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:38,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:38,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:38,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:08:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:38,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:38,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:38,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:38,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:38,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:38,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:38,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:38,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:38,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:38,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:38,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:08:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:38,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:38,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:38,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:38,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:38,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:38,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:38,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:38,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:38,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:38,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:38,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 23:08:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:38,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:38,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:38,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:38,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:38,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:08:38,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:38,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:38,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:38,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:38,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:38,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:08:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:38,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:38,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:38,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:38,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:38,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:08:38,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:38,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:38,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:38,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:08:38,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:38,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:38,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1425530193] [2020-10-27 23:08:38,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:38,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 23:08:38,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379806742] [2020-10-27 23:08:38,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 23:08:38,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:38,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 23:08:38,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-27 23:08:38,657 INFO L87 Difference]: Start difference. First operand 37166 states and 53133 transitions. Second operand 15 states. [2020-10-27 23:08:40,588 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:08:40,832 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-27 23:08:41,135 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:08:41,418 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-27 23:08:44,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:44,140 INFO L93 Difference]: Finished difference Result 43713 states and 63231 transitions. [2020-10-27 23:08:44,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 23:08:44,140 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 121 [2020-10-27 23:08:44,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:44,364 INFO L225 Difference]: With dead ends: 43713 [2020-10-27 23:08:44,365 INFO L226 Difference]: Without dead ends: 43710 [2020-10-27 23:08:44,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2020-10-27 23:08:44,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43710 states. [2020-10-27 23:08:47,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43710 to 39182. [2020-10-27 23:08:47,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39182 states. [2020-10-27 23:08:47,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39182 states to 39182 states and 55149 transitions. [2020-10-27 23:08:47,623 INFO L78 Accepts]: Start accepts. Automaton has 39182 states and 55149 transitions. Word has length 121 [2020-10-27 23:08:47,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:47,624 INFO L481 AbstractCegarLoop]: Abstraction has 39182 states and 55149 transitions. [2020-10-27 23:08:47,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 23:08:47,624 INFO L276 IsEmpty]: Start isEmpty. Operand 39182 states and 55149 transitions. [2020-10-27 23:08:47,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-27 23:08:47,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:47,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:08:47,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 23:08:47,626 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:47,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:47,627 INFO L82 PathProgramCache]: Analyzing trace with hash -177962910, now seen corresponding path program 1 times [2020-10-27 23:08:47,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:47,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85010129] [2020-10-27 23:08:47,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:47,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:48,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:49,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:49,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-27 23:08:49,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:08:49,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1435 [2020-10-27 23:08:49,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:08:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 23:08:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-27 23:08:49,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:49,516 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:08:49,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:49,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:49,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:49,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:49,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:49,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:08:49,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:49,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:49,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:49,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:49,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:49,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:49,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:49,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:49,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:08:49,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:49,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:08:49,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:49,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:49,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:49,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:08:49,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:49,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:08:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:49,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:49,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:49,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:49,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:49,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:08:49,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:49,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:49,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:49,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:08:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:49,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:49,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:49,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:49,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:49,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:08:49,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:49,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:08:49,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:49,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:08:49,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:49,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:08:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:49,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:49,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:49,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:49,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:49,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:08:49,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:49,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:08:49,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:49,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:08:49,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:49,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:08:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:49,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:49,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:49,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:49,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:49,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:08:49,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:08:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:08:49,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:49,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:08:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:49,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:49,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:49,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:49,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:49,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:08:49,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:49,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:08:49,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:49,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:08:49,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:49,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:08:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:49,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:49,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:49,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:49,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:49,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:08:49,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:49,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:08:49,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:49,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:08:49,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:49,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 23:08:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:50,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:50,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:50,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:50,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:50,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:08:50,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:50,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:50,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:08:50,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:50,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:50,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:08:50,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:50,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:50,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:50,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:50,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:50,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:50,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:50,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:50,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:50,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:50,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:50,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:50,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85010129] [2020-10-27 23:08:50,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:50,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-27 23:08:50,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967440866] [2020-10-27 23:08:50,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 23:08:50,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:50,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 23:08:50,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2020-10-27 23:08:50,110 INFO L87 Difference]: Start difference. First operand 39182 states and 55149 transitions. Second operand 21 states. [2020-10-27 23:08:50,459 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:08:50,761 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:08:51,717 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:08:52,432 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:08:52,770 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:08:53,067 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:08:54,208 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 23:08:54,586 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:08:54,918 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:08:55,238 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:08:55,551 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:08:55,831 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 23:08:56,186 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-27 23:08:56,519 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:08:56,812 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 23:08:58,246 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:08:58,616 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:08:58,953 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 23:08:59,315 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:08:59,664 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 23:08:59,987 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:09:00,290 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 23:09:00,456 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 23:09:00,903 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-27 23:09:01,226 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:09:01,565 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-27 23:09:01,885 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:09:02,249 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-27 23:09:02,593 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:09:02,857 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 23:09:03,762 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-27 23:09:04,066 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-27 23:09:06,517 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:09:06,974 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:09:07,326 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:07,693 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:09:08,039 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:08,427 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:09:08,775 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:09,127 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:09:09,489 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:09,858 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:10,198 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:10,380 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:09:10,534 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:09:10,884 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:11,227 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:11,577 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:11,895 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:12,255 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:12,602 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:12,974 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:13,284 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:13,643 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:13,957 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:14,102 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:09:14,379 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:09:14,861 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:15,155 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:15,309 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:09:15,776 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:16,092 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:16,244 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:09:16,703 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:17,015 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:17,337 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:17,638 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:18,695 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:18,973 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:19,464 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:19,802 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-27 23:09:19,959 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:20,438 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:20,828 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:21,228 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:21,523 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:22,548 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:09:24,653 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:09:25,018 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:25,396 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:09:25,753 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:26,126 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:09:26,478 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:26,852 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:09:27,200 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:27,564 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:09:27,927 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:28,349 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:28,689 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:29,062 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:29,405 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:29,772 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:30,120 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:30,260 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:09:30,644 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:31,008 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:31,381 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:31,743 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:32,134 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:32,507 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:32,878 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:33,251 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:33,635 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:33,998 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:34,409 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:34,808 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:35,187 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:35,557 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:35,917 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:36,268 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:36,429 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:09:36,593 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:36,762 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:09:36,920 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:37,090 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:09:37,244 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:37,587 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:37,934 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:38,274 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:38,607 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:38,943 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:39,269 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:39,415 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:09:39,577 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:39,932 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:40,273 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:40,614 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:40,996 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:41,362 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:41,723 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:41,882 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:09:42,061 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:42,416 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:42,790 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:43,155 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:43,514 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:43,902 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:44,270 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:44,425 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:09:44,580 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:44,752 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:09:44,902 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:45,064 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:09:45,581 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-27 23:09:45,931 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-27 23:09:46,080 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:09:46,238 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:46,393 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:09:46,560 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:46,734 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:09:46,894 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:47,256 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-27 23:09:47,625 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-27 23:09:47,786 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:09:47,964 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:48,123 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:09:48,474 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:09:48,633 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:48,998 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-27 23:09:49,365 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-27 23:09:49,732 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-27 23:09:50,110 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-27 23:09:50,461 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-27 23:09:50,828 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-27 23:09:50,989 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:09:51,153 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:51,324 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:09:51,909 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:09:52,865 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:09:54,008 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-27 23:09:54,402 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-27 23:09:54,551 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:09:54,856 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:09:55,147 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:09:57,203 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:10:10,741 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 23:10:10,967 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 23:10:11,181 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:11,378 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 23:10:11,647 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 23:10:11,914 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 23:10:12,229 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:10:12,423 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:12,597 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:10:12,794 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:12,974 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:10:13,186 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:13,416 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:10:13,586 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:10:13,777 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:13,946 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:10:14,118 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:10:14,290 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:10:14,505 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:14,672 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:10:14,870 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:10:15,406 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:10:15,818 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:10:15,999 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:10:16,164 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:10:16,347 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:10:16,715 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:10:16,894 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:10:17,089 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:10:17,254 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:10:17,450 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:10:17,622 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:10:17,875 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:10:18,045 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:10:18,210 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:10:18,415 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:10:18,578 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:10:20,331 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:10:20,792 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-27 23:10:20,972 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-27 23:10:22,530 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:10:22,855 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:10:23,257 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:10:24,581 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:10:24,797 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:10:24,997 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:10:25,181 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:10:25,524 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:10:26,085 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:26,300 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:26,479 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:26,680 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:26,853 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:27,078 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:27,299 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:27,483 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:27,689 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:27,883 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:28,590 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:28,753 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:28,985 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:29,231 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:29,493 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:29,691 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:29,869 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:30,073 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:30,242 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:30,479 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:30,814 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:10:31,442 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:31,896 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:32,077 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:10:32,306 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:32,545 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:32,885 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:33,094 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:33,350 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:33,550 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:33,864 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:10:34,889 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:35,104 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:35,289 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:35,492 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:35,668 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:35,943 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:36,154 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:36,351 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:36,577 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:36,756 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:10:37,477 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:37,686 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-27 23:10:37,906 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 94