/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:36:48,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:36:48,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:36:48,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 01:36:48,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 01:36:48,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 01:36:49,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 01:36:49,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 01:36:49,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 01:36:49,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 01:36:49,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 01:36:49,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 01:36:49,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:36:49,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:36:49,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:36:49,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:36:49,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:36:49,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:36:49,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:36:49,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:36:49,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:36:49,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:36:49,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:36:49,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:36:49,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 01:36:49,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 01:36:49,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 01:36:49,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 01:36:49,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 01:36:49,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 01:36:49,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 01:36:49,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 01:36:49,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 01:36:49,071 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 01:36:49,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 01:36:49,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 01:36:49,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 01:36:49,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 01:36:49,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 01:36:49,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 01:36:49,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 01:36:49,076 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 01:36:49,098 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:36:49,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:36:49,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:36:49,103 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:36:49,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:36:49,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:36:49,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:36:49,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:36:49,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:36:49,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:36:49,106 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:36:49,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:36:49,106 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:36:49,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:36:49,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:36:49,107 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:36:49,107 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:36:49,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:36:49,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:36:49,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:36:49,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:36:49,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:36:49,108 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:36:49,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:36:49,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:36:49,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:36:49,538 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:36:49,538 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:36:49,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-10-24 01:36:49,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f8e1fb94/043257f4267a40608fd4a778ea0e6a9a/FLAGd26b4c619 [2020-10-24 01:36:50,330 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:36:50,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-10-24 01:36:50,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f8e1fb94/043257f4267a40608fd4a778ea0e6a9a/FLAGd26b4c619 [2020-10-24 01:36:50,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f8e1fb94/043257f4267a40608fd4a778ea0e6a9a [2020-10-24 01:36:50,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:36:50,611 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:36:50,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:36:50,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:36:50,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:36:50,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:36:50" (1/1) ... [2020-10-24 01:36:50,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@213e5090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:50, skipping insertion in model container [2020-10-24 01:36:50,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:36:50" (1/1) ... [2020-10-24 01:36:50,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:36:50,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:36:51,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:36:51,142 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:36:51,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:36:51,290 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:36:51,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:51 WrapperNode [2020-10-24 01:36:51,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:36:51,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:36:51,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:36:51,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:36:51,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:51" (1/1) ... [2020-10-24 01:36:51,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:51" (1/1) ... [2020-10-24 01:36:51,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:51" (1/1) ... [2020-10-24 01:36:51,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:51" (1/1) ... [2020-10-24 01:36:51,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:51" (1/1) ... [2020-10-24 01:36:51,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:51" (1/1) ... [2020-10-24 01:36:51,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:51" (1/1) ... [2020-10-24 01:36:51,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:36:51,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:36:51,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:36:51,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:36:51,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-10-24 01:36:51,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:36:51,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:36:51,526 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:36:51,526 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-24 01:36:51,526 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:36:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-24 01:36:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:36:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:36:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:36:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:36:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 01:36:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-24 01:36:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:36:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:36:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:36:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:36:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:36:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:36:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:36:53,052 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:36:53,052 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-24 01:36:53,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:36:53 BoogieIcfgContainer [2020-10-24 01:36:53,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:36:53,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:36:53,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:36:53,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:36:53,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:36:50" (1/3) ... [2020-10-24 01:36:53,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6885f19d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:36:53, skipping insertion in model container [2020-10-24 01:36:53,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:51" (2/3) ... [2020-10-24 01:36:53,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6885f19d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:36:53, skipping insertion in model container [2020-10-24 01:36:53,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:36:53" (3/3) ... [2020-10-24 01:36:53,067 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-10-24 01:36:53,080 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:36:53,086 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:36:53,099 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:36:53,124 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:36:53,125 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:36:53,125 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:36:53,125 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:36:53,125 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:36:53,125 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:36:53,125 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:36:53,126 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:36:53,153 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states. [2020-10-24 01:36:53,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-24 01:36:53,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:36:53,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:36:53,178 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:36:53,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:36:53,185 INFO L82 PathProgramCache]: Analyzing trace with hash 2146575579, now seen corresponding path program 1 times [2020-10-24 01:36:53,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:36:53,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576328783] [2020-10-24 01:36:53,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:36:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:36:53,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:36:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:36:54,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:36:54,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576328783] [2020-10-24 01:36:54,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:36:54,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 01:36:54,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933089875] [2020-10-24 01:36:54,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 01:36:54,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:36:54,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 01:36:54,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 01:36:54,099 INFO L87 Difference]: Start difference. First operand 539 states. Second operand 4 states. [2020-10-24 01:36:57,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:36:57,305 INFO L93 Difference]: Finished difference Result 1409 states and 1864 transitions. [2020-10-24 01:36:57,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 01:36:57,307 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-10-24 01:36:57,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:36:57,332 INFO L225 Difference]: With dead ends: 1409 [2020-10-24 01:36:57,332 INFO L226 Difference]: Without dead ends: 797 [2020-10-24 01:36:57,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:36:57,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-10-24 01:36:57,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 674. [2020-10-24 01:36:57,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 674 states. [2020-10-24 01:36:57,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 822 transitions. [2020-10-24 01:36:57,610 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 822 transitions. Word has length 127 [2020-10-24 01:36:57,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:36:57,611 INFO L481 AbstractCegarLoop]: Abstraction has 674 states and 822 transitions. [2020-10-24 01:36:57,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 01:36:57,612 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 822 transitions. [2020-10-24 01:36:57,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-24 01:36:57,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:36:57,620 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:36:57,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:36:57,621 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:36:57,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:36:57,622 INFO L82 PathProgramCache]: Analyzing trace with hash 895547947, now seen corresponding path program 1 times [2020-10-24 01:36:57,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:36:57,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952932337] [2020-10-24 01:36:57,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:36:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:36:57,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:36:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:36:58,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:36:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:36:58,107 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:36:58,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [952932337] [2020-10-24 01:36:58,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:36:58,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-24 01:36:58,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411197256] [2020-10-24 01:36:58,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:36:58,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:36:58,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:36:58,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:36:58,117 INFO L87 Difference]: Start difference. First operand 674 states and 822 transitions. Second operand 10 states. [2020-10-24 01:36:58,362 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-24 01:36:58,881 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-24 01:36:59,091 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-24 01:37:05,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:37:05,029 INFO L93 Difference]: Finished difference Result 2156 states and 2731 transitions. [2020-10-24 01:37:05,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-24 01:37:05,030 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2020-10-24 01:37:05,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:37:05,041 INFO L225 Difference]: With dead ends: 2156 [2020-10-24 01:37:05,041 INFO L226 Difference]: Without dead ends: 1512 [2020-10-24 01:37:05,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=207, Invalid=663, Unknown=0, NotChecked=0, Total=870 [2020-10-24 01:37:05,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2020-10-24 01:37:05,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1217. [2020-10-24 01:37:05,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1217 states. [2020-10-24 01:37:05,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1474 transitions. [2020-10-24 01:37:05,351 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1474 transitions. Word has length 145 [2020-10-24 01:37:05,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:37:05,352 INFO L481 AbstractCegarLoop]: Abstraction has 1217 states and 1474 transitions. [2020-10-24 01:37:05,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:37:05,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1474 transitions. [2020-10-24 01:37:05,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-24 01:37:05,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:37:05,358 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:37:05,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 01:37:05,358 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:37:05,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:37:05,359 INFO L82 PathProgramCache]: Analyzing trace with hash 140033373, now seen corresponding path program 1 times [2020-10-24 01:37:05,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:37:05,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041870327] [2020-10-24 01:37:05,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:37:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:05,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:37:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:05,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:37:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:05,693 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:37:05,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041870327] [2020-10-24 01:37:05,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:37:05,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:37:05,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970438359] [2020-10-24 01:37:05,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:37:05,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:37:05,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:37:05,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:37:05,709 INFO L87 Difference]: Start difference. First operand 1217 states and 1474 transitions. Second operand 8 states. [2020-10-24 01:37:06,001 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-10-24 01:37:07,287 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-10-24 01:37:11,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:37:11,476 INFO L93 Difference]: Finished difference Result 4174 states and 5641 transitions. [2020-10-24 01:37:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-24 01:37:11,480 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 149 [2020-10-24 01:37:11,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:37:11,509 INFO L225 Difference]: With dead ends: 4174 [2020-10-24 01:37:11,509 INFO L226 Difference]: Without dead ends: 2987 [2020-10-24 01:37:11,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-10-24 01:37:11,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2020-10-24 01:37:12,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2451. [2020-10-24 01:37:12,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2451 states. [2020-10-24 01:37:12,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 3099 transitions. [2020-10-24 01:37:12,094 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 3099 transitions. Word has length 149 [2020-10-24 01:37:12,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:37:12,095 INFO L481 AbstractCegarLoop]: Abstraction has 2451 states and 3099 transitions. [2020-10-24 01:37:12,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:37:12,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 3099 transitions. [2020-10-24 01:37:12,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-24 01:37:12,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:37:12,107 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:37:12,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 01:37:12,107 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:37:12,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:37:12,108 INFO L82 PathProgramCache]: Analyzing trace with hash -427398345, now seen corresponding path program 1 times [2020-10-24 01:37:12,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:37:12,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115046532] [2020-10-24 01:37:12,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:37:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:12,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:37:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:12,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:37:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:12,398 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:37:12,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115046532] [2020-10-24 01:37:12,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:37:12,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-24 01:37:12,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572897803] [2020-10-24 01:37:12,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:37:12,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:37:12,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:37:12,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:37:12,403 INFO L87 Difference]: Start difference. First operand 2451 states and 3099 transitions. Second operand 7 states. [2020-10-24 01:37:12,607 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-24 01:37:15,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:37:15,868 INFO L93 Difference]: Finished difference Result 6541 states and 8868 transitions. [2020-10-24 01:37:15,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:37:15,869 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-10-24 01:37:15,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:37:15,909 INFO L225 Difference]: With dead ends: 6541 [2020-10-24 01:37:15,909 INFO L226 Difference]: Without dead ends: 4120 [2020-10-24 01:37:15,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 01:37:15,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4120 states. [2020-10-24 01:37:16,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4120 to 3990. [2020-10-24 01:37:16,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3990 states. [2020-10-24 01:37:16,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 5069 transitions. [2020-10-24 01:37:16,891 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 5069 transitions. Word has length 165 [2020-10-24 01:37:16,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:37:16,892 INFO L481 AbstractCegarLoop]: Abstraction has 3990 states and 5069 transitions. [2020-10-24 01:37:16,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:37:16,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 5069 transitions. [2020-10-24 01:37:16,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-24 01:37:16,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:37:16,906 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:37:16,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 01:37:16,906 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:37:16,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:37:16,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1969312034, now seen corresponding path program 1 times [2020-10-24 01:37:16,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:37:16,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631006477] [2020-10-24 01:37:16,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:37:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:17,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:37:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:17,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:37:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:17,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-24 01:37:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:17,192 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 01:37:17,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631006477] [2020-10-24 01:37:17,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:37:17,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:37:17,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317403028] [2020-10-24 01:37:17,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:37:17,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:37:17,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:37:17,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:37:17,195 INFO L87 Difference]: Start difference. First operand 3990 states and 5069 transitions. Second operand 8 states. [2020-10-24 01:37:17,443 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-24 01:37:20,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:37:20,823 INFO L93 Difference]: Finished difference Result 8919 states and 11563 transitions. [2020-10-24 01:37:20,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:37:20,824 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 190 [2020-10-24 01:37:20,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:37:20,863 INFO L225 Difference]: With dead ends: 8919 [2020-10-24 01:37:20,863 INFO L226 Difference]: Without dead ends: 4959 [2020-10-24 01:37:20,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-24 01:37:20,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4959 states. [2020-10-24 01:37:22,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4959 to 4934. [2020-10-24 01:37:22,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4934 states. [2020-10-24 01:37:22,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4934 states to 4934 states and 6262 transitions. [2020-10-24 01:37:22,140 INFO L78 Accepts]: Start accepts. Automaton has 4934 states and 6262 transitions. Word has length 190 [2020-10-24 01:37:22,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:37:22,140 INFO L481 AbstractCegarLoop]: Abstraction has 4934 states and 6262 transitions. [2020-10-24 01:37:22,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:37:22,141 INFO L276 IsEmpty]: Start isEmpty. Operand 4934 states and 6262 transitions. [2020-10-24 01:37:22,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-24 01:37:22,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:37:22,156 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:37:22,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 01:37:22,157 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:37:22,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:37:22,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1589549857, now seen corresponding path program 1 times [2020-10-24 01:37:22,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:37:22,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228221304] [2020-10-24 01:37:22,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:37:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:22,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:37:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:22,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:37:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:22,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-24 01:37:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:22,413 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 01:37:22,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228221304] [2020-10-24 01:37:22,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:37:22,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:37:22,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168410902] [2020-10-24 01:37:22,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:37:22,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:37:22,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:37:22,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:37:22,425 INFO L87 Difference]: Start difference. First operand 4934 states and 6262 transitions. Second operand 7 states. [2020-10-24 01:37:26,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:37:26,356 INFO L93 Difference]: Finished difference Result 10309 states and 12992 transitions. [2020-10-24 01:37:26,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 01:37:26,357 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-10-24 01:37:26,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:37:26,395 INFO L225 Difference]: With dead ends: 10309 [2020-10-24 01:37:26,396 INFO L226 Difference]: Without dead ends: 5214 [2020-10-24 01:37:26,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 01:37:26,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5214 states. [2020-10-24 01:37:27,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5214 to 5025. [2020-10-24 01:37:27,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5025 states. [2020-10-24 01:37:27,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5025 states to 5025 states and 6071 transitions. [2020-10-24 01:37:27,523 INFO L78 Accepts]: Start accepts. Automaton has 5025 states and 6071 transitions. Word has length 195 [2020-10-24 01:37:27,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:37:27,523 INFO L481 AbstractCegarLoop]: Abstraction has 5025 states and 6071 transitions. [2020-10-24 01:37:27,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:37:27,524 INFO L276 IsEmpty]: Start isEmpty. Operand 5025 states and 6071 transitions. [2020-10-24 01:37:27,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-24 01:37:27,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:37:27,540 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:37:27,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 01:37:27,540 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:37:27,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:37:27,541 INFO L82 PathProgramCache]: Analyzing trace with hash -518552943, now seen corresponding path program 1 times [2020-10-24 01:37:27,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:37:27,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716402551] [2020-10-24 01:37:27,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:37:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:27,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:37:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:27,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:37:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:27,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-24 01:37:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:27,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-24 01:37:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:27,823 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 87 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-24 01:37:27,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716402551] [2020-10-24 01:37:27,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:37:27,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-24 01:37:27,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321456266] [2020-10-24 01:37:27,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 01:37:27,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:37:27,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 01:37:27,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-24 01:37:27,826 INFO L87 Difference]: Start difference. First operand 5025 states and 6071 transitions. Second operand 9 states. [2020-10-24 01:37:28,049 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-24 01:37:33,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:37:33,510 INFO L93 Difference]: Finished difference Result 11079 states and 13335 transitions. [2020-10-24 01:37:33,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-24 01:37:33,512 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 209 [2020-10-24 01:37:33,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:37:33,548 INFO L225 Difference]: With dead ends: 11079 [2020-10-24 01:37:33,548 INFO L226 Difference]: Without dead ends: 6094 [2020-10-24 01:37:33,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2020-10-24 01:37:33,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6094 states. [2020-10-24 01:37:34,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6094 to 4701. [2020-10-24 01:37:34,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4701 states. [2020-10-24 01:37:34,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4701 states to 4701 states and 5315 transitions. [2020-10-24 01:37:34,424 INFO L78 Accepts]: Start accepts. Automaton has 4701 states and 5315 transitions. Word has length 209 [2020-10-24 01:37:34,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:37:34,425 INFO L481 AbstractCegarLoop]: Abstraction has 4701 states and 5315 transitions. [2020-10-24 01:37:34,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 01:37:34,425 INFO L276 IsEmpty]: Start isEmpty. Operand 4701 states and 5315 transitions. [2020-10-24 01:37:34,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-24 01:37:34,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:37:34,437 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:37:34,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-24 01:37:34,437 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:37:34,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:37:34,438 INFO L82 PathProgramCache]: Analyzing trace with hash -343891454, now seen corresponding path program 1 times [2020-10-24 01:37:34,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:37:34,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503843440] [2020-10-24 01:37:34,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:37:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:34,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:37:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:34,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:37:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:34,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-24 01:37:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:34,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-24 01:37:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:34,762 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 105 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-24 01:37:34,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503843440] [2020-10-24 01:37:34,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:37:34,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 01:37:34,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874304845] [2020-10-24 01:37:34,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:37:34,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:37:34,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:37:34,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:37:34,765 INFO L87 Difference]: Start difference. First operand 4701 states and 5315 transitions. Second operand 10 states. [2020-10-24 01:37:35,195 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-10-24 01:37:41,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:37:41,581 INFO L93 Difference]: Finished difference Result 8114 states and 9194 transitions. [2020-10-24 01:37:41,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-24 01:37:41,588 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 221 [2020-10-24 01:37:41,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:37:41,608 INFO L225 Difference]: With dead ends: 8114 [2020-10-24 01:37:41,608 INFO L226 Difference]: Without dead ends: 3457 [2020-10-24 01:37:41,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2020-10-24 01:37:41,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3457 states. [2020-10-24 01:37:42,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3457 to 3267. [2020-10-24 01:37:42,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3267 states. [2020-10-24 01:37:42,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3267 states to 3267 states and 3580 transitions. [2020-10-24 01:37:42,220 INFO L78 Accepts]: Start accepts. Automaton has 3267 states and 3580 transitions. Word has length 221 [2020-10-24 01:37:42,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:37:42,220 INFO L481 AbstractCegarLoop]: Abstraction has 3267 states and 3580 transitions. [2020-10-24 01:37:42,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:37:42,221 INFO L276 IsEmpty]: Start isEmpty. Operand 3267 states and 3580 transitions. [2020-10-24 01:37:42,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-24 01:37:42,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:37:42,230 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:37:42,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-24 01:37:42,231 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:37:42,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:37:42,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1658482033, now seen corresponding path program 1 times [2020-10-24 01:37:42,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:37:42,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265725375] [2020-10-24 01:37:42,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:37:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:42,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:37:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:42,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:37:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:42,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-24 01:37:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:42,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-24 01:37:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:42,520 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 101 proven. 11 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-24 01:37:42,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265725375] [2020-10-24 01:37:42,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:37:42,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:37:42,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991033979] [2020-10-24 01:37:42,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:37:42,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:37:42,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:37:42,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:37:42,526 INFO L87 Difference]: Start difference. First operand 3267 states and 3580 transitions. Second operand 7 states. [2020-10-24 01:37:42,776 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-10-24 01:37:46,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:37:46,634 INFO L93 Difference]: Finished difference Result 5546 states and 6066 transitions. [2020-10-24 01:37:46,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 01:37:46,639 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-10-24 01:37:46,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:37:46,662 INFO L225 Difference]: With dead ends: 5546 [2020-10-24 01:37:46,662 INFO L226 Difference]: Without dead ends: 3772 [2020-10-24 01:37:46,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-24 01:37:46,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3772 states. [2020-10-24 01:37:47,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3772 to 3260. [2020-10-24 01:37:47,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3260 states. [2020-10-24 01:37:47,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3260 states to 3260 states and 3568 transitions. [2020-10-24 01:37:47,526 INFO L78 Accepts]: Start accepts. Automaton has 3260 states and 3568 transitions. Word has length 242 [2020-10-24 01:37:47,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:37:47,527 INFO L481 AbstractCegarLoop]: Abstraction has 3260 states and 3568 transitions. [2020-10-24 01:37:47,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:37:47,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3260 states and 3568 transitions. [2020-10-24 01:37:47,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-24 01:37:47,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:37:47,537 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:37:47,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-24 01:37:47,537 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:37:47,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:37:47,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1916825690, now seen corresponding path program 1 times [2020-10-24 01:37:47,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:37:47,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725188417] [2020-10-24 01:37:47,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:37:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:47,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:37:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:47,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:37:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:47,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-24 01:37:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:47,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-24 01:37:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:47,868 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 137 proven. 25 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-24 01:37:47,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725188417] [2020-10-24 01:37:47,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:37:47,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:37:47,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12555065] [2020-10-24 01:37:47,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:37:47,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:37:47,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:37:47,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:37:47,871 INFO L87 Difference]: Start difference. First operand 3260 states and 3568 transitions. Second operand 8 states. [2020-10-24 01:37:50,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:37:50,935 INFO L93 Difference]: Finished difference Result 6778 states and 7470 transitions. [2020-10-24 01:37:50,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-24 01:37:50,936 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 268 [2020-10-24 01:37:50,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:37:50,946 INFO L225 Difference]: With dead ends: 6778 [2020-10-24 01:37:50,946 INFO L226 Difference]: Without dead ends: 2628 [2020-10-24 01:37:50,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-10-24 01:37:50,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2020-10-24 01:37:51,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2320. [2020-10-24 01:37:51,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2020-10-24 01:37:51,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 2419 transitions. [2020-10-24 01:37:51,562 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 2419 transitions. Word has length 268 [2020-10-24 01:37:51,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:37:51,562 INFO L481 AbstractCegarLoop]: Abstraction has 2320 states and 2419 transitions. [2020-10-24 01:37:51,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:37:51,563 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 2419 transitions. [2020-10-24 01:37:51,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-24 01:37:51,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:37:51,570 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:37:51,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-24 01:37:51,570 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:37:51,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:37:51,571 INFO L82 PathProgramCache]: Analyzing trace with hash -627869232, now seen corresponding path program 1 times [2020-10-24 01:37:51,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:37:51,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339531044] [2020-10-24 01:37:51,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:37:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:51,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:37:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:51,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:37:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:51,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-24 01:37:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:51,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-24 01:37:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:37:52,182 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 234 proven. 18 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-24 01:37:52,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339531044] [2020-10-24 01:37:52,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:37:52,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-24 01:37:52,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339932816] [2020-10-24 01:37:52,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-24 01:37:52,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:37:52,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-24 01:37:52,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-10-24 01:37:52,185 INFO L87 Difference]: Start difference. First operand 2320 states and 2419 transitions. Second operand 14 states. [2020-10-24 01:37:52,554 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-24 01:37:52,856 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-24 01:37:53,253 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-24 01:37:53,491 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-24 01:37:53,945 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2020-10-24 01:37:54,662 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-24 01:37:55,226 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:37:55,539 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-24 01:37:55,852 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-24 01:37:56,166 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2020-10-24 01:37:57,203 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-10-24 01:37:58,064 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-24 01:37:58,653 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:37:59,313 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:37:59,817 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2020-10-24 01:38:01,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:38:01,380 INFO L93 Difference]: Finished difference Result 5131 states and 5347 transitions. [2020-10-24 01:38:01,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-24 01:38:01,381 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 299 [2020-10-24 01:38:01,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:38:01,396 INFO L225 Difference]: With dead ends: 5131 [2020-10-24 01:38:01,396 INFO L226 Difference]: Without dead ends: 3791 [2020-10-24 01:38:01,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=527, Invalid=2023, Unknown=0, NotChecked=0, Total=2550 [2020-10-24 01:38:01,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3791 states. [2020-10-24 01:38:02,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3791 to 2962. [2020-10-24 01:38:02,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2962 states. [2020-10-24 01:38:02,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 3091 transitions. [2020-10-24 01:38:02,313 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 3091 transitions. Word has length 299 [2020-10-24 01:38:02,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:38:02,314 INFO L481 AbstractCegarLoop]: Abstraction has 2962 states and 3091 transitions. [2020-10-24 01:38:02,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-24 01:38:02,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 3091 transitions. [2020-10-24 01:38:02,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-24 01:38:02,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:38:02,319 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:38:02,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-24 01:38:02,319 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:38:02,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:38:02,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1715465699, now seen corresponding path program 1 times [2020-10-24 01:38:02,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:38:02,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749915505] [2020-10-24 01:38:02,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:38:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:02,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:38:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:02,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:38:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:02,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-24 01:38:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:02,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-24 01:38:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 164 proven. 3 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-24 01:38:02,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749915505] [2020-10-24 01:38:02,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:38:02,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 01:38:02,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877302196] [2020-10-24 01:38:02,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:38:02,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:38:02,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:38:02,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:38:02,851 INFO L87 Difference]: Start difference. First operand 2962 states and 3091 transitions. Second operand 10 states. [2020-10-24 01:38:04,446 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:38:06,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:38:06,704 INFO L93 Difference]: Finished difference Result 3367 states and 3500 transitions. [2020-10-24 01:38:06,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-24 01:38:06,704 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 310 [2020-10-24 01:38:06,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:38:06,715 INFO L225 Difference]: With dead ends: 3367 [2020-10-24 01:38:06,715 INFO L226 Difference]: Without dead ends: 3100 [2020-10-24 01:38:06,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-10-24 01:38:06,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3100 states. [2020-10-24 01:38:07,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3100 to 2638. [2020-10-24 01:38:07,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2638 states. [2020-10-24 01:38:07,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2638 states to 2638 states and 2744 transitions. [2020-10-24 01:38:07,575 INFO L78 Accepts]: Start accepts. Automaton has 2638 states and 2744 transitions. Word has length 310 [2020-10-24 01:38:07,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:38:07,576 INFO L481 AbstractCegarLoop]: Abstraction has 2638 states and 2744 transitions. [2020-10-24 01:38:07,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:38:07,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2638 states and 2744 transitions. [2020-10-24 01:38:07,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-10-24 01:38:07,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:38:07,581 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:38:07,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-24 01:38:07,581 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:38:07,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:38:07,581 INFO L82 PathProgramCache]: Analyzing trace with hash -2029567776, now seen corresponding path program 1 times [2020-10-24 01:38:07,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:38:07,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140017765] [2020-10-24 01:38:07,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:38:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:07,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:38:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:07,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:38:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:07,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-24 01:38:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:07,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-24 01:38:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:08,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-24 01:38:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:08,351 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 339 proven. 29 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-24 01:38:08,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140017765] [2020-10-24 01:38:08,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:38:08,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-24 01:38:08,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278317992] [2020-10-24 01:38:08,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-24 01:38:08,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:38:08,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-24 01:38:08,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-10-24 01:38:08,353 INFO L87 Difference]: Start difference. First operand 2638 states and 2744 transitions. Second operand 15 states. [2020-10-24 01:38:08,726 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-24 01:38:09,064 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-24 01:38:09,396 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-24 01:38:10,438 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:38:10,725 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-24 01:38:10,883 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-24 01:38:11,338 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2020-10-24 01:38:11,616 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-24 01:38:11,751 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-24 01:38:12,469 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-24 01:38:13,759 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-24 01:38:13,996 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:38:14,616 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2020-10-24 01:38:14,854 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:38:15,226 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:38:15,439 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:38:15,737 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 97 [2020-10-24 01:38:16,496 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 96 [2020-10-24 01:38:16,995 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-24 01:38:17,742 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2020-10-24 01:38:20,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:38:20,750 INFO L93 Difference]: Finished difference Result 4913 states and 5110 transitions. [2020-10-24 01:38:20,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-24 01:38:20,751 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 362 [2020-10-24 01:38:20,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:38:20,763 INFO L225 Difference]: With dead ends: 4913 [2020-10-24 01:38:20,763 INFO L226 Difference]: Without dead ends: 2767 [2020-10-24 01:38:20,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 959 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=657, Invalid=2535, Unknown=0, NotChecked=0, Total=3192 [2020-10-24 01:38:20,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2020-10-24 01:38:21,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 1485. [2020-10-24 01:38:21,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1485 states. [2020-10-24 01:38:21,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1522 transitions. [2020-10-24 01:38:21,344 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1522 transitions. Word has length 362 [2020-10-24 01:38:21,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:38:21,344 INFO L481 AbstractCegarLoop]: Abstraction has 1485 states and 1522 transitions. [2020-10-24 01:38:21,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-24 01:38:21,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1522 transitions. [2020-10-24 01:38:21,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2020-10-24 01:38:21,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:38:21,348 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:38:21,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-24 01:38:21,348 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:38:21,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:38:21,349 INFO L82 PathProgramCache]: Analyzing trace with hash 695464445, now seen corresponding path program 1 times [2020-10-24 01:38:21,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:38:21,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059531374] [2020-10-24 01:38:21,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:38:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:21,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:38:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:21,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:38:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:21,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-24 01:38:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:21,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-24 01:38:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:21,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-24 01:38:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:38:22,186 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 232 proven. 4 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-24 01:38:22,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059531374] [2020-10-24 01:38:22,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:38:22,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 01:38:22,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045820964] [2020-10-24 01:38:22,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:38:22,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:38:22,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:38:22,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:38:22,194 INFO L87 Difference]: Start difference. First operand 1485 states and 1522 transitions. Second operand 10 states. [2020-10-24 01:38:22,567 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-24 01:38:25,838 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:38:26,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:38:26,116 INFO L93 Difference]: Finished difference Result 2537 states and 2602 transitions. [2020-10-24 01:38:26,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-24 01:38:26,116 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 383 [2020-10-24 01:38:26,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:38:26,119 INFO L225 Difference]: With dead ends: 2537 [2020-10-24 01:38:26,119 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 01:38:26,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-10-24 01:38:26,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 01:38:26,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 01:38:26,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 01:38:26,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 01:38:26,124 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 383 [2020-10-24 01:38:26,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:38:26,124 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 01:38:26,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:38:26,125 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 01:38:26,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 01:38:26,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-24 01:38:26,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 01:38:30,338 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2020-10-24 01:38:50,258 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 188 [2020-10-24 01:39:34,396 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 188 [2020-10-24 01:39:34,548 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 144 [2020-10-24 01:39:35,214 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 173 [2020-10-24 01:39:35,672 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 144 [2020-10-24 01:39:36,357 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 173 [2020-10-24 01:39:39,691 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2020-10-24 01:39:44,550 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 188 [2020-10-24 01:39:44,652 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 188 [2020-10-24 01:39:55,142 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 188 [2020-10-24 01:40:04,739 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:40:05,888 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 215 DAG size of output: 79 [2020-10-24 01:40:08,634 WARN L193 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:40:10,040 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 219 DAG size of output: 86 [2020-10-24 01:40:11,486 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:40:14,197 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:40:16,916 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:40:19,634 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:40:21,089 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:40:22,542 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:40:23,740 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:40:26,445 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:40:27,196 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:40:28,268 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 212 DAG size of output: 79 [2020-10-24 01:40:29,410 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2020-10-24 01:40:30,173 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:40:31,241 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 156 DAG size of output: 79 [2020-10-24 01:40:32,016 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:40:32,838 WARN L193 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 77 [2020-10-24 01:40:33,596 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:40:34,358 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:40:37,196 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:40:40,053 WARN L193 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:40:41,285 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 176 DAG size of output: 77 [2020-10-24 01:40:42,056 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:40:43,546 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:40:45,018 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:40:47,801 WARN L193 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:40:48,915 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 227 DAG size of output: 76 [2020-10-24 01:40:50,703 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 208 DAG size of output: 85 [2020-10-24 01:40:53,435 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-10-24 01:40:54,506 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 206 DAG size of output: 76 [2020-10-24 01:40:55,736 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 168 DAG size of output: 82 [2020-10-24 01:40:57,153 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 204 DAG size of output: 78 [2020-10-24 01:40:58,498 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 152 DAG size of output: 76 [2020-10-24 01:40:59,421 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 77 [2020-10-24 01:41:02,291 WARN L193 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:41:03,059 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:41:03,875 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 74 [2020-10-24 01:41:06,757 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:41:08,187 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 204 DAG size of output: 78 [2020-10-24 01:41:08,963 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:41:11,845 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:41:13,055 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 159 DAG size of output: 80 [2020-10-24 01:41:14,728 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 207 DAG size of output: 85 [2020-10-24 01:41:17,435 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-10-24 01:41:20,353 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 247 DAG size of output: 100 [2020-10-24 01:41:21,737 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 160 DAG size of output: 80 [2020-10-24 01:41:22,549 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:41:23,768 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 172 DAG size of output: 77 [2020-10-24 01:41:24,739 WARN L193 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 81 [2020-10-24 01:41:25,513 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:41:26,907 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 160 DAG size of output: 88 [2020-10-24 01:41:28,282 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 154 DAG size of output: 78 [2020-10-24 01:41:29,149 WARN L193 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 79 [2020-10-24 01:41:29,929 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:41:30,701 WARN L193 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:41:33,595 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:41:36,518 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:41:39,305 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:41:40,085 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:41:41,213 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 213 DAG size of output: 79 [2020-10-24 01:41:44,128 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:41:45,235 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 212 DAG size of output: 79 [2020-10-24 01:41:46,467 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:41:47,804 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 160 DAG size of output: 85 [2020-10-24 01:41:50,625 WARN L193 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:41:51,855 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:41:54,666 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:41:57,478 WARN L193 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:42:00,293 WARN L193 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:42:01,519 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:42:02,922 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 160 DAG size of output: 80 [2020-10-24 01:42:05,860 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:42:07,515 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 210 DAG size of output: 87 [2020-10-24 01:42:09,064 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 211 DAG size of output: 84 [2020-10-24 01:42:09,856 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:42:10,645 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:42:11,770 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 156 DAG size of output: 78 [2020-10-24 01:42:12,569 WARN L193 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:42:13,360 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:42:16,307 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:42:19,265 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:42:20,126 WARN L193 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 77 [2020-10-24 01:42:20,984 WARN L193 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 76 [2020-10-24 01:42:21,780 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:42:22,626 WARN L193 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 76 [2020-10-24 01:42:24,529 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 205 DAG size of output: 88 [2020-10-24 01:42:27,374 WARN L193 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:42:30,342 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:42:33,316 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:42:34,122 WARN L193 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:42:35,391 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:42:36,650 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:42:39,534 WARN L193 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:42:41,085 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:42:43,964 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:42:46,838 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:42:47,653 WARN L193 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:42:49,152 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 205 DAG size of output: 86 [2020-10-24 01:42:49,966 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:42:50,780 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:42:51,595 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:42:54,594 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:42:55,404 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:42:58,431 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:42:59,477 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 147 DAG size of output: 66 [2020-10-24 01:43:00,285 WARN L193 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:43:01,542 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 202 DAG size of output: 78 [2020-10-24 01:43:04,570 WARN L193 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:43:07,573 WARN L193 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:43:10,590 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:43:11,421 WARN L193 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:43:12,870 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 207 DAG size of output: 78 [2020-10-24 01:43:13,687 WARN L193 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:43:16,588 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:43:18,156 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:43:19,439 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:43:21,018 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:43:22,332 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 206 DAG size of output: 77 [2020-10-24 01:43:23,638 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 168 DAG size of output: 80 [2020-10-24 01:43:24,476 WARN L193 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 65 [2020-10-24 01:43:26,092 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 198 DAG size of output: 79 [2020-10-24 01:43:26,923 WARN L193 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:43:27,890 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 78 [2020-10-24 01:43:29,054 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 212 DAG size of output: 79 [2020-10-24 01:43:29,880 WARN L193 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:43:30,714 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:43:31,557 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:43:34,595 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:43:35,425 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:43:38,502 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:43:41,539 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:43:42,360 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:43:43,783 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 157 DAG size of output: 85 [2020-10-24 01:43:44,613 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:43:45,771 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 212 DAG size of output: 79 [2020-10-24 01:43:47,025 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 219 DAG size of output: 78 [2020-10-24 01:43:48,424 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 161 DAG size of output: 85 [2020-10-24 01:43:49,310 WARN L193 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 78 [2020-10-24 01:43:50,132 WARN L193 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:43:51,667 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 201 DAG size of output: 78 [2020-10-24 01:43:52,509 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:43:53,800 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:43:55,099 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:43:58,045 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:43:59,343 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:44:02,274 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:44:03,576 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:44:04,835 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 197 DAG size of output: 76 [2020-10-24 01:44:06,334 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 159 DAG size of output: 80 [2020-10-24 01:44:07,167 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:44:10,253 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:44:11,077 WARN L193 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:44:11,970 WARN L193 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 78 [2020-10-24 01:44:12,804 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:44:15,878 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:44:17,184 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:44:20,156 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:44:21,908 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 209 DAG size of output: 78 [2020-10-24 01:44:24,883 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:44:27,853 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:44:29,467 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:44:32,430 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:44:34,034 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:44:35,644 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:44:37,247 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:44:40,237 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:44:41,558 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:44:44,558 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:44:45,392 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:44:46,243 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:44:47,095 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:44:50,226 WARN L193 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:44:51,082 WARN L193 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:44:51,936 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:44:53,203 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 160 DAG size of output: 75 [2020-10-24 01:44:56,334 WARN L193 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:44:59,459 WARN L193 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:45:00,956 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 207 DAG size of output: 78 [2020-10-24 01:45:04,144 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:45:05,483 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:45:08,492 WARN L193 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:45:11,524 WARN L193 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:45:14,773 WARN L193 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:45:15,667 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 74 [2020-10-24 01:45:16,513 WARN L193 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:45:19,758 WARN L193 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:45:21,280 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 165 DAG size of output: 79 [2020-10-24 01:45:24,718 WARN L193 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:45:26,229 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 198 DAG size of output: 79 [2020-10-24 01:45:27,252 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 157 DAG size of output: 78 [2020-10-24 01:45:28,158 WARN L193 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:45:29,071 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:45:30,210 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 165 DAG size of output: 77 [2020-10-24 01:45:31,118 WARN L193 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:45:32,011 WARN L193 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:45:33,506 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 207 DAG size of output: 77 [2020-10-24 01:45:34,425 WARN L193 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:45:35,367 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:45:36,282 WARN L193 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:45:37,255 WARN L193 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 74 [2020-10-24 01:45:40,418 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-10-24 01:45:41,406 WARN L193 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 01:45:42,891 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 160 DAG size of output: 85 [2020-10-24 01:45:44,020 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 165 DAG size of output: 77 [2020-10-24 01:45:45,634 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 152 DAG size of output: 76 [2020-10-24 01:45:48,955 WARN L193 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 247 DAG size of output: 100 [2020-10-24 01:45:52,322 WARN L193 SmtUtils]: Spent 3.36 s on a formula simplification. DAG size of input: 247 DAG size of output: 100 [2020-10-24 01:45:53,326 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 74 [2020-10-24 01:45:54,482 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 152 DAG size of output: 78 [2020-10-24 01:45:56,314 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 212 DAG size of output: 81 [2020-10-24 01:45:57,511 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 147 DAG size of output: 66 [2020-10-24 01:45:58,440 WARN L193 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:45:59,514 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 201 DAG size of output: 78 [2020-10-24 01:46:00,566 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 159 DAG size of output: 77 [2020-10-24 01:46:01,572 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 80 [2020-10-24 01:46:04,941 WARN L193 SmtUtils]: Spent 3.36 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:46:08,290 WARN L193 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:46:09,193 WARN L193 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:46:12,487 WARN L193 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:46:15,744 WARN L193 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:46:16,679 WARN L193 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 74 [2020-10-24 01:46:19,771 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-10-24 01:46:21,182 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 206 DAG size of output: 77 [2020-10-24 01:46:24,196 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-10-24 01:46:25,549 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:46:28,602 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:46:31,676 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:46:34,788 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:46:36,155 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:46:37,825 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:46:39,173 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:46:42,242 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:46:43,599 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:46:44,879 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 158 DAG size of output: 77 [2020-10-24 01:46:45,764 WARN L193 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:46:46,651 WARN L193 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:46:47,528 WARN L193 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:46:48,411 WARN L193 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:46:49,292 WARN L193 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:46:50,156 WARN L193 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:46:51,028 WARN L193 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:46:51,908 WARN L193 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:46:53,293 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 164 DAG size of output: 79 [2020-10-24 01:46:54,229 WARN L193 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 01:46:55,710 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 221 DAG size of output: 81 [2020-10-24 01:46:57,715 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 214 DAG size of output: 85 [2020-10-24 01:46:59,081 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:47:02,156 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:47:03,452 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 225 DAG size of output: 79 [2020-10-24 01:47:04,457 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 80 [2020-10-24 01:47:05,693 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 156 DAG size of output: 76 [2020-10-24 01:47:08,725 WARN L193 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-10-24 01:47:10,427 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 213 DAG size of output: 84 [2020-10-24 01:47:11,356 WARN L193 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:47:12,233 WARN L193 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:47:13,486 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 155 DAG size of output: 76 [2020-10-24 01:47:14,540 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 152 DAG size of output: 78 [2020-10-24 01:47:15,419 WARN L193 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:47:16,297 WARN L193 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:47:18,341 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 208 DAG size of output: 85 [2020-10-24 01:47:19,231 WARN L193 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 65 [2020-10-24 01:47:21,048 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 209 DAG size of output: 78 [2020-10-24 01:47:24,269 WARN L193 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:47:27,523 WARN L193 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:47:28,418 WARN L193 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:47:31,667 WARN L193 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:47:34,778 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:47:35,672 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:47:37,350 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 158 DAG size of output: 85 [2020-10-24 01:47:38,232 WARN L193 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:47:39,118 WARN L193 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:47:40,011 WARN L193 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:47:41,240 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 212 DAG size of output: 79 [2020-10-24 01:47:44,489 WARN L193 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:47:45,381 WARN L193 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:47:46,270 WARN L193 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:47:49,555 WARN L193 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 247 DAG size of output: 100 [2020-10-24 01:47:50,435 WARN L193 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:47:53,700 WARN L193 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:47:54,746 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 154 DAG size of output: 77 [2020-10-24 01:47:55,642 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:47:58,948 WARN L193 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:47:59,868 WARN L193 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:00,772 WARN L193 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:01,665 WARN L193 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:02,562 WARN L193 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:03,533 WARN L193 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 75 [2020-10-24 01:48:05,266 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 213 DAG size of output: 84 [2020-10-24 01:48:06,179 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:08,110 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 207 DAG size of output: 85 [2020-10-24 01:48:09,214 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 152 DAG size of output: 77 [2020-10-24 01:48:10,115 WARN L193 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:11,007 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:13,089 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 208 DAG size of output: 85 [2020-10-24 01:48:14,011 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 65 [2020-10-24 01:48:14,908 WARN L193 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:16,422 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 154 DAG size of output: 80 [2020-10-24 01:48:17,337 WARN L193 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:19,098 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 166 DAG size of output: 81 [2020-10-24 01:48:22,186 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-10-24 01:48:22,369 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 34 [2020-10-24 01:48:25,466 WARN L193 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-10-24 01:48:26,382 WARN L193 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:28,026 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 163 DAG size of output: 88 [2020-10-24 01:48:28,929 WARN L193 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:29,838 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:31,134 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 222 DAG size of output: 80 [2020-10-24 01:48:32,049 WARN L193 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:33,088 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 01:48:34,133 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 203 DAG size of output: 77 [2020-10-24 01:48:35,043 WARN L193 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:36,647 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 207 DAG size of output: 78 [2020-10-24 01:48:37,562 WARN L193 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:38,478 WARN L193 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:41,791 WARN L193 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:48:43,186 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:48:44,081 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:48:47,294 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:48:50,603 WARN L193 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:48:51,658 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 201 DAG size of output: 78 [2020-10-24 01:48:54,859 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:48:56,600 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:48:58,027 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:48:59,776 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:49:02,954 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:49:04,694 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:49:07,907 WARN L193 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:49:11,135 WARN L193 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:49:12,697 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:49:16,325 WARN L193 SmtUtils]: Spent 3.62 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:49:19,933 WARN L193 SmtUtils]: Spent 3.60 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:49:21,858 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:49:23,629 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 155 DAG size of output: 81 [2020-10-24 01:49:24,644 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:49:25,717 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 160 DAG size of output: 80 [2020-10-24 01:49:26,699 WARN L193 SmtUtils]: Spent 976.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-10-24 01:49:28,266 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:49:31,803 WARN L193 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:49:35,350 WARN L193 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:49:36,420 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 157 DAG size of output: 78 [2020-10-24 01:49:39,918 WARN L193 SmtUtils]: Spent 3.49 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-10-24 01:49:43,223 WARN L193 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-10-24 01:49:45,078 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:49:46,870 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-10-24 01:49:48,649 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 196 DAG size of output: 79