/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/Problem01_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 23:09:53,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 23:09:53,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 23:09:53,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 23:09:53,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 23:09:53,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 23:09:53,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 23:09:53,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 23:09:53,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 23:09:53,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 23:09:53,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 23:09:53,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 23:09:53,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 23:09:53,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 23:09:53,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 23:09:53,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 23:09:53,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 23:09:53,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 23:09:53,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 23:09:53,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 23:09:53,849 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 23:09:53,863 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 23:09:53,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 23:09:53,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 23:09:53,866 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 23:09:53,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 23:09:53,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 23:09:53,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 23:09:53,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 23:09:53,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 23:09:53,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 23:09:53,868 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 23:09:53,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 23:09:53,868 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 23:09:53,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 23:09:53,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 23:09:53,869 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 23:09:53,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 23:09:53,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 23:09:53,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:09:53,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 23:09:53,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 23:09:53,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 23:09:53,870 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 23:09:54,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 23:09:54,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 23:09:54,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 23:09:54,357 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 23:09:54,358 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 23:09:54,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2021-02-23 23:09:54,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ad724793/9c8b93e490f0466bbe2c7f957dcd49ee/FLAG716b959ed [2021-02-23 23:09:55,266 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 23:09:55,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2021-02-23 23:09:55,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ad724793/9c8b93e490f0466bbe2c7f957dcd49ee/FLAG716b959ed [2021-02-23 23:09:55,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ad724793/9c8b93e490f0466bbe2c7f957dcd49ee [2021-02-23 23:09:55,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 23:09:55,579 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 23:09:55,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 23:09:55,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 23:09:55,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 23:09:55,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:09:55" (1/1) ... [2021-02-23 23:09:55,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@184f2f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:55, skipping insertion in model container [2021-02-23 23:09:55,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:09:55" (1/1) ... [2021-02-23 23:09:55,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 23:09:55,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 23:09:56,037 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c[19973,19986] [2021-02-23 23:09:56,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:09:56,077 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 23:09:56,239 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c[19973,19986] [2021-02-23 23:09:56,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:09:56,268 INFO L208 MainTranslator]: Completed translation [2021-02-23 23:09:56,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:56 WrapperNode [2021-02-23 23:09:56,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 23:09:56,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 23:09:56,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 23:09:56,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 23:09:56,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:56" (1/1) ... [2021-02-23 23:09:56,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:56" (1/1) ... [2021-02-23 23:09:56,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:56" (1/1) ... [2021-02-23 23:09:56,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:56" (1/1) ... [2021-02-23 23:09:56,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:56" (1/1) ... [2021-02-23 23:09:56,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:56" (1/1) ... [2021-02-23 23:09:56,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:56" (1/1) ... [2021-02-23 23:09:56,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 23:09:56,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 23:09:56,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 23:09:56,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 23:09:56,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:56" (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 [2021-02-23 23:09:56,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 23:09:56,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 23:09:56,535 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 23:09:56,536 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-23 23:09:56,536 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 23:09:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-23 23:09:56,537 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 23:09:56,537 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 23:09:56,537 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 23:09:56,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 23:09:56,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 23:09:56,538 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 23:09:56,538 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 23:09:56,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 23:09:56,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 23:09:56,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 23:09:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 23:09:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 23:09:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 23:09:58,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 23:09:58,159 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 23:09:58,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:09:58 BoogieIcfgContainer [2021-02-23 23:09:58,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 23:09:58,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 23:09:58,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 23:09:58,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 23:09:58,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:09:55" (1/3) ... [2021-02-23 23:09:58,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b61a926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:09:58, skipping insertion in model container [2021-02-23 23:09:58,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:56" (2/3) ... [2021-02-23 23:09:58,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b61a926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:09:58, skipping insertion in model container [2021-02-23 23:09:58,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:09:58" (3/3) ... [2021-02-23 23:09:58,177 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2021-02-23 23:09:58,185 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 23:09:58,191 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 23:09:58,214 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 23:09:58,250 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 23:09:58,251 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 23:09:58,251 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 23:09:58,251 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 23:09:58,251 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 23:09:58,251 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 23:09:58,251 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 23:09:58,252 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 23:09:58,282 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states. [2021-02-23 23:09:58,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-02-23 23:09:58,310 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:09:58,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:09:58,312 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:09:58,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:09:58,319 INFO L82 PathProgramCache]: Analyzing trace with hash 347897102, now seen corresponding path program 1 times [2021-02-23 23:09:58,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:09:58,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [29424007] [2021-02-23 23:09:58,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:09:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:58,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:58,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:09:58,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:58,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:09:58,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:58,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:09:58,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:58,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:59,020 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-23 23:09:59,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:09:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:59,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:59,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:59,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:59,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:09:59,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:09:59,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [29424007] [2021-02-23 23:09:59,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:09:59,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:09:59,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497081146] [2021-02-23 23:09:59,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:09:59,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:09:59,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:09:59,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:09:59,169 INFO L87 Difference]: Start difference. First operand 534 states. Second operand 4 states. [2021-02-23 23:09:59,416 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-23 23:10:02,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:02,078 INFO L93 Difference]: Finished difference Result 1349 states and 1747 transitions. [2021-02-23 23:10:02,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 23:10:02,080 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2021-02-23 23:10:02,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:02,117 INFO L225 Difference]: With dead ends: 1349 [2021-02-23 23:10:02,117 INFO L226 Difference]: Without dead ends: 749 [2021-02-23 23:10:02,132 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 [2021-02-23 23:10:02,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2021-02-23 23:10:02,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 672. [2021-02-23 23:10:02,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2021-02-23 23:10:02,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 788 transitions. [2021-02-23 23:10:02,394 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 788 transitions. Word has length 152 [2021-02-23 23:10:02,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:02,398 INFO L480 AbstractCegarLoop]: Abstraction has 672 states and 788 transitions. [2021-02-23 23:10:02,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:10:02,399 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 788 transitions. [2021-02-23 23:10:02,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-02-23 23:10:02,418 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:02,418 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:02,419 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 23:10:02,419 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:02,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:02,421 INFO L82 PathProgramCache]: Analyzing trace with hash -586012210, now seen corresponding path program 1 times [2021-02-23 23:10:02,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:02,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736127334] [2021-02-23 23:10:02,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:02,758 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:10:02,759 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:10:02,774 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:10:02,775 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:10:02,777 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:10:02,778 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:10:02,796 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:10:02,798 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:10:02,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:02,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:02,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:02,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:02,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:02,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:02,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:02,917 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:10:02,918 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:10:02,929 WARN L141 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-02-23 23:10:02,929 WARN L147 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size 10 [2021-02-23 23:10:02,943 WARN L141 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size [2021-02-23 23:10:02,944 WARN L147 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size 13 [2021-02-23 23:10:02,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:02,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:02,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:02,984 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:10:02,985 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:10:02,986 WARN L141 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-02-23 23:10:02,987 WARN L147 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size 16 [2021-02-23 23:10:03,004 WARN L141 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-02-23 23:10:03,005 WARN L147 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size 19 [2021-02-23 23:10:03,025 WARN L141 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size [2021-02-23 23:10:03,026 WARN L147 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size 22 [2021-02-23 23:10:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:10:03,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736127334] [2021-02-23 23:10:03,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:03,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-23 23:10:03,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252475775] [2021-02-23 23:10:03,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 23:10:03,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:03,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 23:10:03,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-02-23 23:10:03,254 INFO L87 Difference]: Start difference. First operand 672 states and 788 transitions. Second operand 11 states. [2021-02-23 23:10:03,890 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-23 23:10:04,575 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-23 23:10:09,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:09,549 INFO L93 Difference]: Finished difference Result 2529 states and 3315 transitions. [2021-02-23 23:10:09,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-23 23:10:09,549 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 173 [2021-02-23 23:10:09,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:09,568 INFO L225 Difference]: With dead ends: 2529 [2021-02-23 23:10:09,569 INFO L226 Difference]: Without dead ends: 1479 [2021-02-23 23:10:09,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2021-02-23 23:10:09,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2021-02-23 23:10:09,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1247. [2021-02-23 23:10:09,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1247 states. [2021-02-23 23:10:09,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1475 transitions. [2021-02-23 23:10:09,915 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1475 transitions. Word has length 173 [2021-02-23 23:10:09,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:09,916 INFO L480 AbstractCegarLoop]: Abstraction has 1247 states and 1475 transitions. [2021-02-23 23:10:09,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 23:10:09,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1475 transitions. [2021-02-23 23:10:09,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-02-23 23:10:09,924 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:09,925 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:09,925 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 23:10:09,925 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:09,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:09,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1554550056, now seen corresponding path program 1 times [2021-02-23 23:10:09,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:09,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912742545] [2021-02-23 23:10:09,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:10,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:10,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:10,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:10,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:10,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:10,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:10,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:10,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:10,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:10,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:10,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:10,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:10,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:10,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:10,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:10,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:10,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:10,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:10,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:10,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-02-23 23:10:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:10,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:10,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:10,205 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-02-23 23:10:10,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912742545] [2021-02-23 23:10:10,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:10,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:10:10,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36626488] [2021-02-23 23:10:10,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:10:10,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:10,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:10:10,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:10:10,208 INFO L87 Difference]: Start difference. First operand 1247 states and 1475 transitions. Second operand 7 states. [2021-02-23 23:10:13,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:13,197 INFO L93 Difference]: Finished difference Result 3416 states and 4185 transitions. [2021-02-23 23:10:13,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 23:10:13,198 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 207 [2021-02-23 23:10:13,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:13,218 INFO L225 Difference]: With dead ends: 3416 [2021-02-23 23:10:13,218 INFO L226 Difference]: Without dead ends: 2201 [2021-02-23 23:10:13,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-02-23 23:10:13,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2021-02-23 23:10:13,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 2135. [2021-02-23 23:10:13,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2021-02-23 23:10:13,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 2542 transitions. [2021-02-23 23:10:13,725 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 2542 transitions. Word has length 207 [2021-02-23 23:10:13,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:13,725 INFO L480 AbstractCegarLoop]: Abstraction has 2135 states and 2542 transitions. [2021-02-23 23:10:13,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:10:13,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 2542 transitions. [2021-02-23 23:10:13,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-02-23 23:10:13,739 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:13,739 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:13,739 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 23:10:13,740 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:13,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:13,741 INFO L82 PathProgramCache]: Analyzing trace with hash -2089457122, now seen corresponding path program 1 times [2021-02-23 23:10:13,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:13,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1116367161] [2021-02-23 23:10:13,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:13,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:13,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:13,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:13,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:13,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:13,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:13,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:13,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:13,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:13,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:13,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:13,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:13,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:13,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:13,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:13,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:13,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:13,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-02-23 23:10:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:14,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:14,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:14,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:14,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:14,116 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-02-23 23:10:14,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1116367161] [2021-02-23 23:10:14,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:14,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:10:14,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369139990] [2021-02-23 23:10:14,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:10:14,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:14,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:10:14,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:10:14,120 INFO L87 Difference]: Start difference. First operand 2135 states and 2542 transitions. Second operand 7 states. [2021-02-23 23:10:14,617 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-23 23:10:17,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:17,668 INFO L93 Difference]: Finished difference Result 4972 states and 6088 transitions. [2021-02-23 23:10:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 23:10:17,668 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 224 [2021-02-23 23:10:17,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:17,695 INFO L225 Difference]: With dead ends: 4972 [2021-02-23 23:10:17,695 INFO L226 Difference]: Without dead ends: 3010 [2021-02-23 23:10:17,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-23 23:10:17,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2021-02-23 23:10:18,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 2935. [2021-02-23 23:10:18,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2935 states. [2021-02-23 23:10:18,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2935 states to 2935 states and 3540 transitions. [2021-02-23 23:10:18,319 INFO L78 Accepts]: Start accepts. Automaton has 2935 states and 3540 transitions. Word has length 224 [2021-02-23 23:10:18,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:18,321 INFO L480 AbstractCegarLoop]: Abstraction has 2935 states and 3540 transitions. [2021-02-23 23:10:18,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:10:18,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2935 states and 3540 transitions. [2021-02-23 23:10:18,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-02-23 23:10:18,337 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:18,337 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:18,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 23:10:18,338 INFO L428 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:18,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:18,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1404500897, now seen corresponding path program 1 times [2021-02-23 23:10:18,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:18,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645298233] [2021-02-23 23:10:18,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:18,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:18,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:18,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:18,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:18,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:18,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:18,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:18,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:18,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:18,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:18,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:18,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:18,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:18,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:18,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:18,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:18,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:18,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:18,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:18,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:18,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:18,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:18,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:18,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:18,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:18,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-23 23:10:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:18,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:18,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:18,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:18,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:10:18,687 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 78 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-02-23 23:10:18,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645298233] [2021-02-23 23:10:18,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:18,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:10:18,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457689883] [2021-02-23 23:10:18,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:10:18,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:18,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:10:18,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:10:18,690 INFO L87 Difference]: Start difference. First operand 2935 states and 3540 transitions. Second operand 7 states. [2021-02-23 23:10:21,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:21,727 INFO L93 Difference]: Finished difference Result 6466 states and 8185 transitions. [2021-02-23 23:10:21,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 23:10:21,728 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 238 [2021-02-23 23:10:21,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:21,765 INFO L225 Difference]: With dead ends: 6466 [2021-02-23 23:10:21,765 INFO L226 Difference]: Without dead ends: 3704 [2021-02-23 23:10:21,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-23 23:10:21,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2021-02-23 23:10:22,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3564. [2021-02-23 23:10:22,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2021-02-23 23:10:22,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 4274 transitions. [2021-02-23 23:10:22,408 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 4274 transitions. Word has length 238 [2021-02-23 23:10:22,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:22,409 INFO L480 AbstractCegarLoop]: Abstraction has 3564 states and 4274 transitions. [2021-02-23 23:10:22,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:10:22,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 4274 transitions. [2021-02-23 23:10:22,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-02-23 23:10:22,465 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:22,466 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:22,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 23:10:22,466 INFO L428 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:22,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:22,467 INFO L82 PathProgramCache]: Analyzing trace with hash 882249093, now seen corresponding path program 1 times [2021-02-23 23:10:22,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:22,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802507641] [2021-02-23 23:10:22,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:22,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:22,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:22,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:22,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:22,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:22,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:22,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:22,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:22,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:22,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:22,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:22,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:22,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:22,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:22,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:22,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:22,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:22,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-23 23:10:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:22,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:22,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:22,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:22,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:22,752 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 93 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-02-23 23:10:22,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802507641] [2021-02-23 23:10:22,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:22,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:10:22,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631735395] [2021-02-23 23:10:22,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:10:22,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:22,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:10:22,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:10:22,757 INFO L87 Difference]: Start difference. First operand 3564 states and 4274 transitions. Second operand 7 states. [2021-02-23 23:10:25,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:25,604 INFO L93 Difference]: Finished difference Result 7128 states and 8546 transitions. [2021-02-23 23:10:25,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 23:10:25,608 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 238 [2021-02-23 23:10:25,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:25,636 INFO L225 Difference]: With dead ends: 7128 [2021-02-23 23:10:25,636 INFO L226 Difference]: Without dead ends: 3580 [2021-02-23 23:10:25,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-23 23:10:25,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2021-02-23 23:10:26,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 3525. [2021-02-23 23:10:26,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3525 states. [2021-02-23 23:10:26,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3525 states to 3525 states and 4008 transitions. [2021-02-23 23:10:26,382 INFO L78 Accepts]: Start accepts. Automaton has 3525 states and 4008 transitions. Word has length 238 [2021-02-23 23:10:26,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:26,383 INFO L480 AbstractCegarLoop]: Abstraction has 3525 states and 4008 transitions. [2021-02-23 23:10:26,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:10:26,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3525 states and 4008 transitions. [2021-02-23 23:10:26,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-02-23 23:10:26,396 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:26,397 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:26,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 23:10:26,397 INFO L428 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:26,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:26,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1951396512, now seen corresponding path program 1 times [2021-02-23 23:10:26,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:26,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1132797196] [2021-02-23 23:10:26,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:26,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:26,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:26,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:26,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:26,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:26,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:26,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:26,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:26,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:26,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:26,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:26,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:26,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:26,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:26,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:26,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:26,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:26,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-02-23 23:10:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:26,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:26,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:26,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:26,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:10:26,740 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-02-23 23:10:26,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1132797196] [2021-02-23 23:10:26,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:26,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:10:26,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997349308] [2021-02-23 23:10:26,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:10:26,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:26,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:10:26,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:10:26,742 INFO L87 Difference]: Start difference. First operand 3525 states and 4008 transitions. Second operand 7 states. [2021-02-23 23:10:29,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:29,926 INFO L93 Difference]: Finished difference Result 8391 states and 9802 transitions. [2021-02-23 23:10:29,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 23:10:29,927 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 241 [2021-02-23 23:10:29,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:29,966 INFO L225 Difference]: With dead ends: 8391 [2021-02-23 23:10:29,966 INFO L226 Difference]: Without dead ends: 5039 [2021-02-23 23:10:29,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-23 23:10:29,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5039 states. [2021-02-23 23:10:31,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5039 to 4867. [2021-02-23 23:10:31,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4867 states. [2021-02-23 23:10:31,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4867 states to 4867 states and 5526 transitions. [2021-02-23 23:10:31,203 INFO L78 Accepts]: Start accepts. Automaton has 4867 states and 5526 transitions. Word has length 241 [2021-02-23 23:10:31,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:31,204 INFO L480 AbstractCegarLoop]: Abstraction has 4867 states and 5526 transitions. [2021-02-23 23:10:31,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:10:31,204 INFO L276 IsEmpty]: Start isEmpty. Operand 4867 states and 5526 transitions. [2021-02-23 23:10:31,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-02-23 23:10:31,223 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:31,224 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:31,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 23:10:31,224 INFO L428 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:31,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:31,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1134464856, now seen corresponding path program 1 times [2021-02-23 23:10:31,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:31,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454940207] [2021-02-23 23:10:31,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:31,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:31,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:31,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:31,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:31,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:31,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:31,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:31,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:10:31,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:31,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:31,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:31,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:31,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:31,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:31,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:31,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:31,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:31,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:31,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:31,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:31,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:31,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:31,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:31,460 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:31,461 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:31,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-02-23 23:10:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:31,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:31,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:31,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:31,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:10:31,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-02-23 23:10:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:31,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:31,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:31,645 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 120 proven. 28 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-02-23 23:10:31,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454940207] [2021-02-23 23:10:31,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:31,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 23:10:31,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754122112] [2021-02-23 23:10:31,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:10:31,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:31,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:10:31,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:10:31,648 INFO L87 Difference]: Start difference. First operand 4867 states and 5526 transitions. Second operand 10 states. [2021-02-23 23:10:32,085 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2021-02-23 23:10:32,353 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-23 23:10:32,632 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-23 23:10:33,007 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:10:33,510 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2021-02-23 23:10:34,221 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-23 23:10:34,984 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 23:10:38,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:38,301 INFO L93 Difference]: Finished difference Result 10304 states and 11716 transitions. [2021-02-23 23:10:38,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-23 23:10:38,301 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 263 [2021-02-23 23:10:38,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:38,334 INFO L225 Difference]: With dead ends: 10304 [2021-02-23 23:10:38,334 INFO L226 Difference]: Without dead ends: 5610 [2021-02-23 23:10:38,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2021-02-23 23:10:38,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2021-02-23 23:10:39,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 5408. [2021-02-23 23:10:39,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5408 states. [2021-02-23 23:10:39,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5408 states to 5408 states and 6052 transitions. [2021-02-23 23:10:39,311 INFO L78 Accepts]: Start accepts. Automaton has 5408 states and 6052 transitions. Word has length 263 [2021-02-23 23:10:39,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:39,312 INFO L480 AbstractCegarLoop]: Abstraction has 5408 states and 6052 transitions. [2021-02-23 23:10:39,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:10:39,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5408 states and 6052 transitions. [2021-02-23 23:10:39,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-02-23 23:10:39,327 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:39,327 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:39,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 23:10:39,328 INFO L428 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:39,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:39,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1137736805, now seen corresponding path program 1 times [2021-02-23 23:10:39,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:39,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986751124] [2021-02-23 23:10:39,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:39,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:39,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:39,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:39,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:39,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:39,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:39,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:39,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:39,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:39,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:39,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:39,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:39,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:39,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:39,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:39,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-23 23:10:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:39,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:39,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:10:39,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 23:10:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:39,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:39,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:39,660 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 127 proven. 18 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-02-23 23:10:39,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986751124] [2021-02-23 23:10:39,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:39,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-23 23:10:39,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484406973] [2021-02-23 23:10:39,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 23:10:39,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:39,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 23:10:39,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-23 23:10:39,662 INFO L87 Difference]: Start difference. First operand 5408 states and 6052 transitions. Second operand 8 states. [2021-02-23 23:10:40,053 WARN L202 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-02-23 23:10:44,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:44,302 INFO L93 Difference]: Finished difference Result 12610 states and 14224 transitions. [2021-02-23 23:10:44,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 23:10:44,302 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 266 [2021-02-23 23:10:44,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:44,335 INFO L225 Difference]: With dead ends: 12610 [2021-02-23 23:10:44,335 INFO L226 Difference]: Without dead ends: 6479 [2021-02-23 23:10:44,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-23 23:10:44,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6479 states. [2021-02-23 23:10:45,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6479 to 4921. [2021-02-23 23:10:45,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4921 states. [2021-02-23 23:10:45,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4921 states to 4921 states and 5353 transitions. [2021-02-23 23:10:45,661 INFO L78 Accepts]: Start accepts. Automaton has 4921 states and 5353 transitions. Word has length 266 [2021-02-23 23:10:45,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:45,661 INFO L480 AbstractCegarLoop]: Abstraction has 4921 states and 5353 transitions. [2021-02-23 23:10:45,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 23:10:45,662 INFO L276 IsEmpty]: Start isEmpty. Operand 4921 states and 5353 transitions. [2021-02-23 23:10:45,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-02-23 23:10:45,673 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:45,673 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:45,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 23:10:45,674 INFO L428 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:45,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:45,674 INFO L82 PathProgramCache]: Analyzing trace with hash 615208801, now seen corresponding path program 1 times [2021-02-23 23:10:45,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:45,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839034456] [2021-02-23 23:10:45,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:45,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:45,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:45,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:45,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:45,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:45,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:45,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:45,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:45,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:45,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:45,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:45,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:45,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:45,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:45,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:45,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:45,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:45,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:45,895 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:45,896 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:45,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:45,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:45,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:45,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:45,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:10:45,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-23 23:10:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:45,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:45,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:45,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 23:10:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:45,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:45,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:46,051 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 116 proven. 36 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-02-23 23:10:46,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839034456] [2021-02-23 23:10:46,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:46,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-23 23:10:46,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415736863] [2021-02-23 23:10:46,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 23:10:46,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:46,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 23:10:46,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-23 23:10:46,054 INFO L87 Difference]: Start difference. First operand 4921 states and 5353 transitions. Second operand 8 states. [2021-02-23 23:10:47,571 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-02-23 23:10:49,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:49,757 INFO L93 Difference]: Finished difference Result 10110 states and 11013 transitions. [2021-02-23 23:10:49,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 23:10:49,757 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 277 [2021-02-23 23:10:49,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:49,782 INFO L225 Difference]: With dead ends: 10110 [2021-02-23 23:10:49,782 INFO L226 Difference]: Without dead ends: 5362 [2021-02-23 23:10:49,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 23:10:49,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2021-02-23 23:10:50,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 5249. [2021-02-23 23:10:50,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5249 states. [2021-02-23 23:10:50,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 5692 transitions. [2021-02-23 23:10:50,755 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 5692 transitions. Word has length 277 [2021-02-23 23:10:50,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:50,755 INFO L480 AbstractCegarLoop]: Abstraction has 5249 states and 5692 transitions. [2021-02-23 23:10:50,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 23:10:50,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 5692 transitions. [2021-02-23 23:10:50,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2021-02-23 23:10:50,767 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:50,767 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:50,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 23:10:50,767 INFO L428 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:50,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:50,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1077810007, now seen corresponding path program 1 times [2021-02-23 23:10:50,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:50,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525835788] [2021-02-23 23:10:50,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:50,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:50,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:50,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:50,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:50,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:50,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:50,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:50,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:10:50,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:50,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:50,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:50,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:50,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:50,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:50,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:50,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:50,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:51,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:51,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 23:10:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:51,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:51,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:51,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:51,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:51,030 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:51,030 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:51,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-23 23:10:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:51,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:51,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:51,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:51,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:51,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-23 23:10:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:51,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:51,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:51,219 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 198 proven. 28 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-02-23 23:10:51,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525835788] [2021-02-23 23:10:51,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:51,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 23:10:51,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740375771] [2021-02-23 23:10:51,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:10:51,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:51,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:10:51,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:10:51,222 INFO L87 Difference]: Start difference. First operand 5249 states and 5692 transitions. Second operand 10 states. [2021-02-23 23:10:52,488 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2021-02-23 23:10:52,695 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:10:53,318 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-23 23:10:55,836 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-02-23 23:10:57,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:57,377 INFO L93 Difference]: Finished difference Result 10829 states and 11761 transitions. [2021-02-23 23:10:57,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-23 23:10:57,378 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 331 [2021-02-23 23:10:57,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:57,404 INFO L225 Difference]: With dead ends: 10829 [2021-02-23 23:10:57,405 INFO L226 Difference]: Without dead ends: 5753 [2021-02-23 23:10:57,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2021-02-23 23:10:57,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5753 states. [2021-02-23 23:10:58,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5753 to 5698. [2021-02-23 23:10:58,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5698 states. [2021-02-23 23:10:58,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5698 states to 5698 states and 6123 transitions. [2021-02-23 23:10:58,651 INFO L78 Accepts]: Start accepts. Automaton has 5698 states and 6123 transitions. Word has length 331 [2021-02-23 23:10:58,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:58,652 INFO L480 AbstractCegarLoop]: Abstraction has 5698 states and 6123 transitions. [2021-02-23 23:10:58,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:10:58,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5698 states and 6123 transitions. [2021-02-23 23:10:58,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2021-02-23 23:10:58,666 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:58,666 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 3, 3, 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] [2021-02-23 23:10:58,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 23:10:58,667 INFO L428 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:58,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:58,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1624638907, now seen corresponding path program 1 times [2021-02-23 23:10:58,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:58,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123581840] [2021-02-23 23:10:58,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:58,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:58,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:58,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:58,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:58,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:58,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:58,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:58,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:58,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:58,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:58,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:58,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-23 23:10:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:58,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:58,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:58,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:58,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 23:10:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:58,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:58,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:10:58,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-02-23 23:10:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:58,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:59,113 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 243 proven. 18 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-02-23 23:10:59,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123581840] [2021-02-23 23:10:59,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:59,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-23 23:10:59,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107795531] [2021-02-23 23:10:59,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 23:10:59,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:59,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 23:10:59,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-23 23:10:59,115 INFO L87 Difference]: Start difference. First operand 5698 states and 6123 transitions. Second operand 8 states. [2021-02-23 23:11:00,420 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-02-23 23:11:02,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:02,782 INFO L93 Difference]: Finished difference Result 11434 states and 12290 transitions. [2021-02-23 23:11:02,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-23 23:11:02,783 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 371 [2021-02-23 23:11:02,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:02,806 INFO L225 Difference]: With dead ends: 11434 [2021-02-23 23:11:02,807 INFO L226 Difference]: Without dead ends: 5909 [2021-02-23 23:11:02,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 23:11:02,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5909 states. [2021-02-23 23:11:04,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5909 to 5849. [2021-02-23 23:11:04,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5849 states. [2021-02-23 23:11:04,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5849 states to 5849 states and 6265 transitions. [2021-02-23 23:11:04,017 INFO L78 Accepts]: Start accepts. Automaton has 5849 states and 6265 transitions. Word has length 371 [2021-02-23 23:11:04,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:04,018 INFO L480 AbstractCegarLoop]: Abstraction has 5849 states and 6265 transitions. [2021-02-23 23:11:04,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 23:11:04,018 INFO L276 IsEmpty]: Start isEmpty. Operand 5849 states and 6265 transitions. [2021-02-23 23:11:04,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2021-02-23 23:11:04,028 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:11:04,029 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 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] [2021-02-23 23:11:04,029 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-23 23:11:04,029 INFO L428 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:11:04,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:11:04,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1120169024, now seen corresponding path program 1 times [2021-02-23 23:11:04,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:11:04,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875837541] [2021-02-23 23:11:04,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:11:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:04,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:04,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:04,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:04,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:04,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:04,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:04,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:04,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:04,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:04,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:04,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:11:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:04,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:04,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:04,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:11:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:04,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:04,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:04,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-23 23:11:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:04,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:04,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:04,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 23:11:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:04,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:04,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:04,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-23 23:11:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:04,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:04,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:04,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:04,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:04,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-02-23 23:11:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:04,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:04,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:04,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:04,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:04,616 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 242 proven. 5 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-02-23 23:11:04,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875837541] [2021-02-23 23:11:04,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:11:04,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-02-23 23:11:04,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990693269] [2021-02-23 23:11:04,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 23:11:04,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:11:04,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 23:11:04,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-23 23:11:04,619 INFO L87 Difference]: Start difference. First operand 5849 states and 6265 transitions. Second operand 5 states. [2021-02-23 23:11:07,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:07,412 INFO L93 Difference]: Finished difference Result 11833 states and 12688 transitions. [2021-02-23 23:11:07,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 23:11:07,417 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 392 [2021-02-23 23:11:07,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:07,442 INFO L225 Difference]: With dead ends: 11833 [2021-02-23 23:11:07,442 INFO L226 Difference]: Without dead ends: 5502 [2021-02-23 23:11:07,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-23 23:11:07,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2021-02-23 23:11:08,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 5484. [2021-02-23 23:11:08,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5484 states. [2021-02-23 23:11:08,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 5837 transitions. [2021-02-23 23:11:08,468 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 5837 transitions. Word has length 392 [2021-02-23 23:11:08,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:08,469 INFO L480 AbstractCegarLoop]: Abstraction has 5484 states and 5837 transitions. [2021-02-23 23:11:08,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 23:11:08,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 5837 transitions. [2021-02-23 23:11:08,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-02-23 23:11:08,481 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:11:08,481 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2021-02-23 23:11:08,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-23 23:11:08,482 INFO L428 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:11:08,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:11:08,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1915389309, now seen corresponding path program 1 times [2021-02-23 23:11:08,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:11:08,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873428212] [2021-02-23 23:11:08,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:11:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:08,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:08,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:11:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:11:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-23 23:11:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 23:11:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-23 23:11:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:08,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-02-23 23:11:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:08,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-02-23 23:11:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:08,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:11:08,946 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 366 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2021-02-23 23:11:08,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873428212] [2021-02-23 23:11:08,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:11:08,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:11:08,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747663641] [2021-02-23 23:11:08,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:11:08,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:11:08,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:11:08,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:11:08,949 INFO L87 Difference]: Start difference. First operand 5484 states and 5837 transitions. Second operand 7 states. [2021-02-23 23:11:12,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:12,331 INFO L93 Difference]: Finished difference Result 10765 states and 11524 transitions. [2021-02-23 23:11:12,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 23:11:12,332 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 400 [2021-02-23 23:11:12,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:12,351 INFO L225 Difference]: With dead ends: 10765 [2021-02-23 23:11:12,351 INFO L226 Difference]: Without dead ends: 5149 [2021-02-23 23:11:12,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-23 23:11:12,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5149 states. [2021-02-23 23:11:13,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5149 to 3433. [2021-02-23 23:11:13,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3433 states. [2021-02-23 23:11:13,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 3622 transitions. [2021-02-23 23:11:13,222 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 3622 transitions. Word has length 400 [2021-02-23 23:11:13,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:13,222 INFO L480 AbstractCegarLoop]: Abstraction has 3433 states and 3622 transitions. [2021-02-23 23:11:13,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:11:13,223 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 3622 transitions. [2021-02-23 23:11:13,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-02-23 23:11:13,230 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:11:13,230 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 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, 1, 1] [2021-02-23 23:11:13,230 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-23 23:11:13,230 INFO L428 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:11:13,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:11:13,231 INFO L82 PathProgramCache]: Analyzing trace with hash 141382135, now seen corresponding path program 1 times [2021-02-23 23:11:13,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:11:13,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63681822] [2021-02-23 23:11:13,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:11:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:13,404 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:13,405 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:13,411 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:13,412 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:13,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:13,417 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:13,418 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:13,425 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:13,426 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:13,427 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:13,427 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:13,428 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-02-23 23:11:13,429 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size 24 [2021-02-23 23:11:13,446 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-02-23 23:11:13,447 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size 24 [2021-02-23 23:11:13,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:13,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:11:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:13,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:13,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:13,552 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:13,553 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:13,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:11:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:13,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:13,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:13,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-23 23:11:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:13,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:13,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:13,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 23:11:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:13,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:13,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:13,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-23 23:11:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:13,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:13,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:13,640 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:11:13,640 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:11:13,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-02-23 23:11:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:13,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:13,662 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:13,663 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:13,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-02-23 23:11:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:13,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:13,677 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:13,678 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:13,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-23 23:11:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:13,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:13,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:13,699 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:13,700 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:13,700 WARN L141 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-02-23 23:11:13,701 WARN L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-02-23 23:11:13,716 WARN L141 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-02-23 23:11:13,717 WARN L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-02-23 23:11:13,734 WARN L141 QuantifierPusher]: treesize reduction 6, result has 72.7 percent of original size [2021-02-23 23:11:13,735 WARN L147 QuantifierPusher]: treesize reduction 6, result has 72.7 percent of original size 16 [2021-02-23 23:11:13,756 WARN L141 QuantifierPusher]: treesize reduction 6, result has 76.0 percent of original size [2021-02-23 23:11:13,757 WARN L147 QuantifierPusher]: treesize reduction 6, result has 76.0 percent of original size 19 [2021-02-23 23:11:13,782 WARN L141 QuantifierPusher]: treesize reduction 8, result has 73.3 percent of original size [2021-02-23 23:11:13,782 WARN L147 QuantifierPusher]: treesize reduction 8, result has 73.3 percent of original size 22 [2021-02-23 23:11:14,205 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 370 proven. 56 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2021-02-23 23:11:14,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63681822] [2021-02-23 23:11:14,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:11:14,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-02-23 23:11:14,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779363642] [2021-02-23 23:11:14,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-23 23:11:14,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:11:14,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-23 23:11:14,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-02-23 23:11:14,207 INFO L87 Difference]: Start difference. First operand 3433 states and 3622 transitions. Second operand 14 states. [2021-02-23 23:11:14,394 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 23:11:15,811 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 23:11:17,064 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-23 23:11:17,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:17,446 INFO L93 Difference]: Finished difference Result 6781 states and 7158 transitions. [2021-02-23 23:11:17,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 23:11:17,449 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 462 [2021-02-23 23:11:17,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:17,457 INFO L225 Difference]: With dead ends: 6781 [2021-02-23 23:11:17,457 INFO L226 Difference]: Without dead ends: 3433 [2021-02-23 23:11:17,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2021-02-23 23:11:17,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2021-02-23 23:11:18,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3427. [2021-02-23 23:11:18,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3427 states. [2021-02-23 23:11:18,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 3615 transitions. [2021-02-23 23:11:18,597 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 3615 transitions. Word has length 462 [2021-02-23 23:11:18,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:18,598 INFO L480 AbstractCegarLoop]: Abstraction has 3427 states and 3615 transitions. [2021-02-23 23:11:18,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-23 23:11:18,598 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 3615 transitions. [2021-02-23 23:11:18,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2021-02-23 23:11:18,605 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:11:18,605 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 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, 1, 1] [2021-02-23 23:11:18,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-23 23:11:18,606 INFO L428 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:11:18,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:11:18,606 INFO L82 PathProgramCache]: Analyzing trace with hash -2076242135, now seen corresponding path program 1 times [2021-02-23 23:11:18,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:11:18,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110925571] [2021-02-23 23:11:18,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:11:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:18,787 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:18,788 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:18,794 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:18,794 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:18,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:18,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:18,799 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:18,800 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:18,807 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:18,808 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:18,809 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:18,809 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:18,810 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-02-23 23:11:18,810 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size 21 [2021-02-23 23:11:18,826 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-02-23 23:11:18,826 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size 21 [2021-02-23 23:11:18,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:18,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:11:18,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:18,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:18,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:11:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:18,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:18,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:18,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:18,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:18,935 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:18,935 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:18,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:11:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:18,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:18,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:18,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:18,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:18,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-23 23:11:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:19,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:19,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:19,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:19,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:19,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 23:11:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:19,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:19,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:19,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:19,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:19,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-23 23:11:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:19,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:19,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:19,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:19,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:19,032 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:11:19,033 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:11:19,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-02-23 23:11:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:19,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:19,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:19,057 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:19,058 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:19,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-02-23 23:11:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:19,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:19,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:19,073 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:19,077 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:19,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-02-23 23:11:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:19,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:19,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:19,104 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:19,104 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:19,105 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-23 23:11:19,105 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-23 23:11:19,120 WARN L141 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-02-23 23:11:19,121 WARN L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-02-23 23:11:19,141 WARN L141 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-02-23 23:11:19,142 WARN L147 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size 16 [2021-02-23 23:11:19,163 WARN L141 QuantifierPusher]: treesize reduction 6, result has 76.0 percent of original size [2021-02-23 23:11:19,164 WARN L147 QuantifierPusher]: treesize reduction 6, result has 76.0 percent of original size 19 [2021-02-23 23:11:19,517 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 390 proven. 56 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2021-02-23 23:11:19,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110925571] [2021-02-23 23:11:19,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:11:19,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-02-23 23:11:19,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533452385] [2021-02-23 23:11:19,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-23 23:11:19,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:11:19,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-23 23:11:19,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-02-23 23:11:19,519 INFO L87 Difference]: Start difference. First operand 3427 states and 3615 transitions. Second operand 14 states. [2021-02-23 23:11:19,749 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-23 23:11:21,310 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-23 23:11:21,429 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 23:11:22,432 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-23 23:11:24,545 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-23 23:11:25,323 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-23 23:11:26,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:26,045 INFO L93 Difference]: Finished difference Result 7009 states and 7424 transitions. [2021-02-23 23:11:26,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-23 23:11:26,046 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 482 [2021-02-23 23:11:26,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:26,050 INFO L225 Difference]: With dead ends: 7009 [2021-02-23 23:11:26,050 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 23:11:26,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2021-02-23 23:11:26,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 23:11:26,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 23:11:26,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 23:11:26,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 23:11:26,057 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 482 [2021-02-23 23:11:26,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:26,057 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 23:11:26,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-23 23:11:26,058 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 23:11:26,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 23:11:26,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-23 23:11:26,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 23:11:26,480 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-23 23:11:40,975 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 218 [2021-02-23 23:12:27,467 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 218 [2021-02-23 23:12:32,038 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 218 [2021-02-23 23:12:32,696 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 218 [2021-02-23 23:12:33,240 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 218 [2021-02-23 23:13:05,610 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 158 [2021-02-23 23:13:06,814 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 158 [2021-02-23 23:13:25,414 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 218 [2021-02-23 23:13:25,555 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 218 [2021-02-23 23:13:25,700 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 218 [2021-02-23 23:13:25,845 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 218 [2021-02-23 23:13:42,483 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 218 [2021-02-23 23:13:53,074 WARN L202 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:13:54,065 WARN L202 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:13:56,933 WARN L202 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:13:57,894 WARN L202 SmtUtils]: Spent 951.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:14:00,800 WARN L202 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:14:03,676 WARN L202 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:14:06,518 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:14:07,477 WARN L202 SmtUtils]: Spent 951.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:14:08,210 WARN L202 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 61 [2021-02-23 23:14:09,194 WARN L202 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:14:09,932 WARN L202 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 61 [2021-02-23 23:14:12,806 WARN L202 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:14:15,437 WARN L202 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:14:16,546 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2021-02-23 23:14:18,030 WARN L202 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 178 DAG size of output: 76 [2021-02-23 23:14:18,823 WARN L202 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 72 [2021-02-23 23:14:20,135 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 185 DAG size of output: 78 [2021-02-23 23:14:22,052 WARN L202 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 231 DAG size of output: 84 [2021-02-23 23:14:22,957 WARN L202 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 71 [2021-02-23 23:14:23,997 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 174 DAG size of output: 73 [2021-02-23 23:14:25,116 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 170 DAG size of output: 76 [2021-02-23 23:14:27,782 WARN L202 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:14:29,089 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2021-02-23 23:14:29,859 WARN L202 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 74 [2021-02-23 23:14:32,574 WARN L202 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:14:33,322 WARN L202 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 72 [2021-02-23 23:14:34,069 WARN L202 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 74 [2021-02-23 23:14:34,935 WARN L202 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 82 [2021-02-23 23:14:35,896 WARN L202 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 67 [2021-02-23 23:14:36,899 WARN L202 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 72 [2021-02-23 23:14:37,858 WARN L202 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:14:38,796 WARN L202 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:14:41,306 WARN L202 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:14:42,564 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 234 DAG size of output: 86 [2021-02-23 23:14:43,399 WARN L202 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 77 [2021-02-23 23:14:44,274 WARN L202 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 71 [2021-02-23 23:14:45,014 WARN L202 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:14:46,083 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 170 DAG size of output: 76 [2021-02-23 23:14:48,616 WARN L202 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:14:49,546 WARN L202 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 76 [2021-02-23 23:14:50,306 WARN L202 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 74 [2021-02-23 23:14:51,451 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 227 DAG size of output: 76 [2021-02-23 23:14:52,324 WARN L202 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 71 [2021-02-23 23:14:53,327 WARN L202 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 75 [2021-02-23 23:14:55,854 WARN L202 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:14:57,070 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 178 DAG size of output: 80 [2021-02-23 23:14:57,888 WARN L202 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 73 [2021-02-23 23:14:59,123 WARN L202 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 173 DAG size of output: 81 [2021-02-23 23:14:59,936 WARN L202 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 73 [2021-02-23 23:15:00,977 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 234 DAG size of output: 87 [2021-02-23 23:15:02,104 WARN L202 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 225 DAG size of output: 82 [2021-02-23 23:15:03,028 WARN L202 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 73 [2021-02-23 23:15:04,160 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 221 DAG size of output: 75 [2021-02-23 23:15:05,239 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2021-02-23 23:15:07,777 WARN L202 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:15:08,661 WARN L202 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 76 [2021-02-23 23:15:09,399 WARN L202 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:15:10,397 WARN L202 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 77 [2021-02-23 23:15:12,937 WARN L202 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:15:15,485 WARN L202 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:15:16,250 WARN L202 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2021-02-23 23:15:19,043 WARN L202 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:15:21,579 WARN L202 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:15:22,597 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2021-02-23 23:15:23,349 WARN L202 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:15:24,555 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:15:25,744 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:15:28,477 WARN L202 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:15:29,426 WARN L202 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:15:32,198 WARN L202 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:15:34,956 WARN L202 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:15:37,723 WARN L202 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:15:38,677 WARN L202 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:15:39,878 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2021-02-23 23:15:41,082 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 178 DAG size of output: 79 [2021-02-23 23:15:42,655 WARN L202 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 173 DAG size of output: 81 [2021-02-23 23:15:43,519 WARN L202 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 76 [2021-02-23 23:15:46,065 WARN L202 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:15:48,600 WARN L202 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:15:49,358 WARN L202 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 72 [2021-02-23 23:15:50,523 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 225 DAG size of output: 76 [2021-02-23 23:15:52,309 WARN L202 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 231 DAG size of output: 89 [2021-02-23 23:15:53,607 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2021-02-23 23:15:54,617 WARN L202 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 173 DAG size of output: 73 [2021-02-23 23:15:55,603 WARN L202 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 83 [2021-02-23 23:15:57,209 WARN L202 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 235 DAG size of output: 76 [2021-02-23 23:15:58,083 WARN L202 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 81 [2021-02-23 23:16:00,632 WARN L202 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:16:01,723 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 170 DAG size of output: 76 [2021-02-23 23:16:02,629 WARN L202 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 80 [2021-02-23 23:16:05,325 WARN L202 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 268 DAG size of output: 93 [2021-02-23 23:16:07,877 WARN L202 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:16:08,972 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2021-02-23 23:16:10,163 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 188 DAG size of output: 80 [2021-02-23 23:16:12,913 WARN L202 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:16:15,473 WARN L202 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:16:16,996 WARN L202 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 218 DAG size of output: 81 [2021-02-23 23:16:17,960 WARN L202 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:16:19,156 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:16:21,904 WARN L202 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:16:23,108 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:16:25,898 WARN L202 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:16:28,684 WARN L202 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:16:30,133 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 223 DAG size of output: 81 [2021-02-23 23:16:31,733 WARN L202 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 174 DAG size of output: 81 [2021-02-23 23:16:34,296 WARN L202 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:16:35,189 WARN L202 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 77 [2021-02-23 23:16:37,759 WARN L202 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:16:38,515 WARN L202 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 70 [2021-02-23 23:16:39,318 WARN L202 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 75 [2021-02-23 23:16:40,560 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2021-02-23 23:16:41,416 WARN L202 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 74 [2021-02-23 23:16:43,978 WARN L202 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:16:44,808 WARN L202 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2021-02-23 23:16:45,922 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 217 DAG size of output: 75 [2021-02-23 23:16:48,504 WARN L202 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:16:49,653 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 222 DAG size of output: 77 [2021-02-23 23:16:50,666 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 177 DAG size of output: 84 [2021-02-23 23:16:51,975 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 175 DAG size of output: 76 [2021-02-23 23:16:54,775 WARN L202 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:16:55,746 WARN L202 SmtUtils]: Spent 964.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:16:56,714 WARN L202 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:16:57,560 WARN L202 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 74 [2021-02-23 23:16:58,450 WARN L202 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 77 [2021-02-23 23:17:01,032 WARN L202 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:17:02,064 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2021-02-23 23:17:03,077 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2021-02-23 23:17:03,885 WARN L202 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2021-02-23 23:17:05,179 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 173 DAG size of output: 81 [2021-02-23 23:17:06,718 WARN L202 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 184 DAG size of output: 87 [2021-02-23 23:17:07,942 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 223 DAG size of output: 80 [2021-02-23 23:17:09,011 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 218 DAG size of output: 78 [2021-02-23 23:17:09,870 WARN L202 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 74 [2021-02-23 23:17:10,799 WARN L202 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2021-02-23 23:17:11,844 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2021-02-23 23:17:13,668 WARN L202 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 231 DAG size of output: 89 [2021-02-23 23:17:16,244 WARN L202 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:17:17,506 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 221 DAG size of output: 82 [2021-02-23 23:17:18,638 WARN L202 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 182 DAG size of output: 77 [2021-02-23 23:17:19,729 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 168 DAG size of output: 73 [2021-02-23 23:17:20,887 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 226 DAG size of output: 77 [2021-02-23 23:17:21,901 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2021-02-23 23:17:22,804 WARN L202 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 79 [2021-02-23 23:17:25,386 WARN L202 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:17:26,459 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 218 DAG size of output: 78 [2021-02-23 23:17:29,044 WARN L202 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:17:29,900 WARN L202 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 74 [2021-02-23 23:17:31,117 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:17:32,088 WARN L202 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:17:34,903 WARN L202 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:17:36,129 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:17:38,952 WARN L202 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:17:40,003 WARN L202 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 225 DAG size of output: 80 [2021-02-23 23:17:42,597 WARN L202 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:17:45,194 WARN L202 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:17:46,214 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2021-02-23 23:17:47,065 WARN L202 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 74 [2021-02-23 23:17:48,319 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 167 DAG size of output: 76 [2021-02-23 23:17:49,456 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 218 DAG size of output: 75 [2021-02-23 23:17:52,251 WARN L202 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:17:53,045 WARN L202 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2021-02-23 23:17:54,267 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:17:57,099 WARN L202 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:17:59,889 WARN L202 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:18:02,725 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:18:03,698 WARN L202 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:18:06,530 WARN L202 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:18:07,505 WARN L202 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:18:08,479 WARN L202 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:18:09,452 WARN L202 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:18:12,284 WARN L202 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:18:13,260 WARN L202 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:18:14,592 WARN L202 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 175 DAG size of output: 76 [2021-02-23 23:18:15,467 WARN L202 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 74 [2021-02-23 23:18:16,811 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 231 DAG size of output: 79 [2021-02-23 23:18:17,628 WARN L202 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2021-02-23 23:18:19,272 WARN L202 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 235 DAG size of output: 76 [2021-02-23 23:18:20,333 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2021-02-23 23:18:22,935 WARN L202 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:18:23,796 WARN L202 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 77 [2021-02-23 23:18:25,026 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:18:25,816 WARN L202 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 74 [2021-02-23 23:18:28,608 WARN L202 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:18:29,389 WARN L202 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 72 [2021-02-23 23:18:30,369 WARN L202 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:18:33,207 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:18:36,018 WARN L202 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:18:37,003 WARN L202 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 67 [2021-02-23 23:18:37,786 WARN L202 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 61 [2021-02-23 23:18:38,664 WARN L202 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 69 [2021-02-23 23:18:39,553 WARN L202 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 76 [2021-02-23 23:18:40,339 WARN L202 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 72 [2021-02-23 23:18:41,593 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 223 DAG size of output: 80 [2021-02-23 23:18:42,434 WARN L202 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 75 [2021-02-23 23:18:43,737 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 173 DAG size of output: 81 [2021-02-23 23:18:46,355 WARN L202 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:18:47,212 WARN L202 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 76 [2021-02-23 23:18:49,834 WARN L202 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:18:50,631 WARN L202 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2021-02-23 23:18:52,197 WARN L202 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 183 DAG size of output: 83 [2021-02-23 23:18:54,818 WARN L202 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:18:55,703 WARN L202 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 69 [2021-02-23 23:18:56,944 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 227 DAG size of output: 78 [2021-02-23 23:18:57,892 WARN L202 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 77 [2021-02-23 23:18:59,025 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2021-02-23 23:18:59,917 WARN L202 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 76 [2021-02-23 23:19:02,538 WARN L202 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:19:03,618 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 176 DAG size of output: 75 [2021-02-23 23:19:04,804 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 227 DAG size of output: 76 [2021-02-23 23:19:05,716 WARN L202 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 76 [2021-02-23 23:19:06,833 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 170 DAG size of output: 75 [2021-02-23 23:19:07,810 WARN L202 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 75 [2021-02-23 23:19:08,594 WARN L202 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 70 [2021-02-23 23:19:09,584 WARN L202 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 67 [2021-02-23 23:19:12,212 WARN L202 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:19:13,269 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 175 DAG size of output: 75 [2021-02-23 23:19:14,340 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2021-02-23 23:19:15,327 WARN L202 SmtUtils]: Spent 985.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 67 [2021-02-23 23:19:16,202 WARN L202 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 74 [2021-02-23 23:19:17,328 WARN L202 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 176 DAG size of output: 78 [2021-02-23 23:19:18,214 WARN L202 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 69 [2021-02-23 23:19:19,207 WARN L202 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 67 [2021-02-23 23:19:20,515 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 173 DAG size of output: 81 [2021-02-23 23:19:22,043 WARN L202 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 184 DAG size of output: 83 [2021-02-23 23:19:24,683 WARN L202 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:19:25,555 WARN L202 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 73 [2021-02-23 23:19:26,349 WARN L202 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 72 [2021-02-23 23:19:27,288 WARN L202 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2021-02-23 23:19:28,902 WARN L202 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 226 DAG size of output: 81 [2021-02-23 23:19:30,356 WARN L202 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 223 DAG size of output: 78 [2021-02-23 23:19:31,455 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 218 DAG size of output: 78 [2021-02-23 23:19:32,412 WARN L202 SmtUtils]: Spent 951.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 81 [2021-02-23 23:19:33,312 WARN L202 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 76 [2021-02-23 23:19:34,309 WARN L202 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:19:37,175 WARN L202 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:19:40,016 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:19:42,894 WARN L202 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:19:43,936 WARN L202 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:19:44,933 WARN L202 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:19:46,181 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:19:49,062 WARN L202 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:19:50,162 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 178 DAG size of output: 74 [2021-02-23 23:19:51,542 WARN L202 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 185 DAG size of output: 79 [2021-02-23 23:19:52,694 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2021-02-23 23:19:53,595 WARN L202 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 69 [2021-02-23 23:19:54,676 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 172 DAG size of output: 74 [2021-02-23 23:19:57,478 WARN L202 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 268 DAG size of output: 93 [2021-02-23 23:19:58,840 WARN L202 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 223 DAG size of output: 80 [2021-02-23 23:20:01,507 WARN L202 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:20:02,875 WARN L202 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2021-02-23 23:20:03,973 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2021-02-23 23:20:04,804 WARN L202 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2021-02-23 23:20:05,678 WARN L202 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 77 [2021-02-23 23:20:06,920 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 189 DAG size of output: 81 [2021-02-23 23:20:08,174 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:20:08,971 WARN L202 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2021-02-23 23:20:11,837 WARN L202 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:20:14,503 WARN L202 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:20:15,561 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2021-02-23 23:20:16,768 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 176 DAG size of output: 76 [2021-02-23 23:20:17,899 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2021-02-23 23:20:20,567 WARN L202 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:20:22,310 WARN L202 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 226 DAG size of output: 79 [2021-02-23 23:20:23,177 WARN L202 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 75 [2021-02-23 23:20:24,566 WARN L202 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2021-02-23 23:20:25,624 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2021-02-23 23:20:26,553 WARN L202 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 77 [2021-02-23 23:20:27,745 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:20:28,661 WARN L202 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 78 [2021-02-23 23:20:31,336 WARN L202 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:20:32,401 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 171 DAG size of output: 73 [2021-02-23 23:20:33,467 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2021-02-23 23:20:34,759 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 167 DAG size of output: 75 [2021-02-23 23:20:37,630 WARN L202 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:20:40,613 WARN L202 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:20:41,826 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 222 DAG size of output: 77 [2021-02-23 23:20:42,992 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2021-02-23 23:20:44,274 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 183 DAG size of output: 79 [2021-02-23 23:20:45,319 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 183 DAG size of output: 81 [2021-02-23 23:20:46,284 WARN L202 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 82 [2021-02-23 23:20:47,439 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 171 DAG size of output: 75 [2021-02-23 23:20:48,385 WARN L202 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 78 [2021-02-23 23:20:49,333 WARN L202 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 79 [2021-02-23 23:20:50,837 WARN L202 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 198 DAG size of output: 80 [2021-02-23 23:20:51,945 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2021-02-23 23:20:53,230 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 227 DAG size of output: 76 [2021-02-23 23:20:54,482 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 176 DAG size of output: 76 [2021-02-23 23:20:57,177 WARN L202 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:20:58,122 WARN L202 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 82 [2021-02-23 23:20:59,243 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2021-02-23 23:21:00,405 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2021-02-23 23:21:01,255 WARN L202 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 75 [2021-02-23 23:21:02,325 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2021-02-23 23:21:03,493 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2021-02-23 23:21:04,470 WARN L202 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 79 [2021-02-23 23:21:05,543 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 168 DAG size of output: 72 [2021-02-23 23:21:06,673 WARN L202 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2021-02-23 23:21:07,892 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 222 DAG size of output: 77 [2021-02-23 23:21:08,866 WARN L202 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 76 [2021-02-23 23:21:09,771 WARN L202 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 74 [2021-02-23 23:21:10,842 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2021-02-23 23:21:11,912 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 168 DAG size of output: 72 [2021-02-23 23:21:12,987 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 171 DAG size of output: 73 [2021-02-23 23:21:14,095 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 169 DAG size of output: 74 [2021-02-23 23:21:16,788 WARN L202 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:21:18,017 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 222 DAG size of output: 77 [2021-02-23 23:21:20,705 WARN L202 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:21:21,795 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2021-02-23 23:21:22,714 WARN L202 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 77 [2021-02-23 23:21:23,784 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 168 DAG size of output: 72 [2021-02-23 23:21:23,926 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 39 [2021-02-23 23:21:24,817 WARN L202 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2021-02-23 23:21:27,506 WARN L202 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:21:28,554 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 183 DAG size of output: 83 [2021-02-23 23:21:30,045 WARN L202 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 183 DAG size of output: 79 [2021-02-23 23:21:31,208 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 170 DAG size of output: 75 [2021-02-23 23:21:32,171 WARN L202 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 78 [2021-02-23 23:21:33,086 WARN L202 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 78 [2021-02-23 23:21:34,309 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 226 DAG size of output: 77 [2021-02-23 23:21:35,414 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 171 DAG size of output: 72 [2021-02-23 23:21:36,377 WARN L202 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 78 [2021-02-23 23:21:39,078 WARN L202 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:21:41,775 WARN L202 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:21:42,714 WARN L202 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 81 [2021-02-23 23:21:43,631 WARN L202 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 77 [2021-02-23 23:21:44,652 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:21:45,679 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:21:48,598 WARN L202 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:21:51,510 WARN L202 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:21:52,692 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2021-02-23 23:21:54,009 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 167 DAG size of output: 75 [2021-02-23 23:21:56,976 WARN L202 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:21:58,257 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:21:59,536 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:22:00,564 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:22:03,521 WARN L202 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:22:04,546 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:22:07,508 WARN L202 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:22:08,787 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:22:11,742 WARN L202 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:22:12,674 WARN L202 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 74 [2021-02-23 23:22:15,685 WARN L202 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:22:16,658 WARN L202 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 76 [2021-02-23 23:22:19,646 WARN L202 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2021-02-23 23:22:21,056 WARN L202 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:22:24,234 WARN L202 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:22:27,400 WARN L202 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2021-02-23 23:22:28,825 WARN L202 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 167 DAG size of output: 76 [2021-02-23 23:22:32,018 WARN L202 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2021-02-23 23:22:33,406 WARN L202 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:22:34,794 WARN L202 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2021-02-23 23:22:35,879 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2021-02-23 23:22:39,116 WARN L202 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 265 DAG size of output: 98