/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/Problem11_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 00:04:27,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:04:27,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:04:27,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 00:04:27,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 00:04:27,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 00:04:27,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 00:04:27,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 00:04:27,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 00:04:27,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 00:04:27,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 00:04:27,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 00:04:27,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 00:04:27,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 00:04:27,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 00:04:27,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 00:04:27,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 00:04:27,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 00:04:27,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 00:04:27,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 00:04:27,341 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-24 00:04:27,367 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:04:27,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:04:27,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:04:27,371 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:04:27,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:04:27,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:04:27,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:04:27,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:04:27,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:04:27,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:04:27,373 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:04:27,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:04:27,374 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:04:27,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:04:27,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:04:27,375 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:04:27,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:04:27,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:04:27,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:04:27,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:04:27,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:04:27,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:04:27,376 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:04:27,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:04:27,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:04:27,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:04:27,860 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:04:27,861 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:04:27,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label18.c [2021-02-24 00:04:27,935 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07a470202/01838c39ef5d4003b6046f6ea5f16e4f/FLAGcff85d6f5 [2021-02-24 00:04:28,728 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:04:28,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label18.c [2021-02-24 00:04:28,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07a470202/01838c39ef5d4003b6046f6ea5f16e4f/FLAGcff85d6f5 [2021-02-24 00:04:28,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07a470202/01838c39ef5d4003b6046f6ea5f16e4f [2021-02-24 00:04:28,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:04:28,893 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:04:28,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:04:28,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:04:28,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:04:28,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:04:28" (1/1) ... [2021-02-24 00:04:28,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2639aaec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:04:28, skipping insertion in model container [2021-02-24 00:04:28,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:04:28" (1/1) ... [2021-02-24 00:04:28,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:04:29,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:04:29,225 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/Problem11_label18.c[4971,4984] [2021-02-24 00:04:29,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:04:29,567 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:04:29,665 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/Problem11_label18.c[4971,4984] [2021-02-24 00:04:29,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:04:29,878 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:04:29,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:04:29 WrapperNode [2021-02-24 00:04:29,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:04:29,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:04:29,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:04:29,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:04:29,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:04:29" (1/1) ... [2021-02-24 00:04:29,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:04:29" (1/1) ... [2021-02-24 00:04:29,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:04:29" (1/1) ... [2021-02-24 00:04:29,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:04:29" (1/1) ... [2021-02-24 00:04:30,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:04:29" (1/1) ... [2021-02-24 00:04:30,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:04:29" (1/1) ... [2021-02-24 00:04:30,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:04:29" (1/1) ... [2021-02-24 00:04:30,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:04:30,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:04:30,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:04:30,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:04:30,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:04:29" (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 [2021-02-24 00:04:30,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:04:30,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:04:30,192 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:04:30,192 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-24 00:04:30,193 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:04:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-24 00:04:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:04:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:04:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:04:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:04:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 00:04:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 00:04:30,195 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:04:30,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:04:30,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:04:30,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:04:30,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:04:30,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:04:30,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:04:32,198 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:04:32,198 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 00:04:32,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:04:32 BoogieIcfgContainer [2021-02-24 00:04:32,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:04:32,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:04:32,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:04:32,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:04:32,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:04:28" (1/3) ... [2021-02-24 00:04:32,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ae3b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:04:32, skipping insertion in model container [2021-02-24 00:04:32,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:04:29" (2/3) ... [2021-02-24 00:04:32,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ae3b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:04:32, skipping insertion in model container [2021-02-24 00:04:32,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:04:32" (3/3) ... [2021-02-24 00:04:32,211 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label18.c [2021-02-24 00:04:32,218 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:04:32,224 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 00:04:32,243 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 00:04:32,269 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:04:32,269 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:04:32,270 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:04:32,270 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:04:32,270 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:04:32,270 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:04:32,270 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:04:32,270 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:04:32,305 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states. [2021-02-24 00:04:32,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-24 00:04:32,318 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:04:32,319 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] [2021-02-24 00:04:32,320 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:04:32,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:04:32,327 INFO L82 PathProgramCache]: Analyzing trace with hash -767473210, now seen corresponding path program 1 times [2021-02-24 00:04:32,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:04:32,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548616868] [2021-02-24 00:04:32,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:04:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:32,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:32,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:32,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:32,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:32,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:32,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:32,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:32,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:32,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:04:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:32,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:32,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:32,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:32,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:32,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:04:32,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548616868] [2021-02-24 00:04:32,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:04:32,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 00:04:32,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50601197] [2021-02-24 00:04:32,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 00:04:32,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:04:32,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 00:04:32,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 00:04:32,887 INFO L87 Difference]: Start difference. First operand 822 states. Second operand 4 states. [2021-02-24 00:04:37,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:04:37,138 INFO L93 Difference]: Finished difference Result 1966 states and 2561 transitions. [2021-02-24 00:04:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 00:04:37,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2021-02-24 00:04:37,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:04:37,168 INFO L225 Difference]: With dead ends: 1966 [2021-02-24 00:04:37,169 INFO L226 Difference]: Without dead ends: 1095 [2021-02-24 00:04:37,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 00:04:37,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2021-02-24 00:04:37,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1047. [2021-02-24 00:04:37,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1047 states. [2021-02-24 00:04:37,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1235 transitions. [2021-02-24 00:04:37,457 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1235 transitions. Word has length 63 [2021-02-24 00:04:37,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:04:37,458 INFO L480 AbstractCegarLoop]: Abstraction has 1047 states and 1235 transitions. [2021-02-24 00:04:37,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 00:04:37,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1235 transitions. [2021-02-24 00:04:37,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-02-24 00:04:37,466 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:04:37,466 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-02-24 00:04:37,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:04:37,467 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:04:37,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:04:37,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1400456752, now seen corresponding path program 1 times [2021-02-24 00:04:37,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:04:37,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080923050] [2021-02-24 00:04:37,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:04:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:37,619 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-24 00:04:37,620 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-24 00:04:37,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:37,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:04:37,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:37,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:37,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:04:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:37,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:37,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:37,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:37,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:37,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:04:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:37,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:37,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:37,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:37,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:04:38,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2080923050] [2021-02-24 00:04:38,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:04:38,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 00:04:38,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312585401] [2021-02-24 00:04:38,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:04:38,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:04:38,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:04:38,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:04:38,028 INFO L87 Difference]: Start difference. First operand 1047 states and 1235 transitions. Second operand 8 states. [2021-02-24 00:04:44,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:04:44,070 INFO L93 Difference]: Finished difference Result 3262 states and 4040 transitions. [2021-02-24 00:04:44,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 00:04:44,071 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 145 [2021-02-24 00:04:44,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:04:44,092 INFO L225 Difference]: With dead ends: 3262 [2021-02-24 00:04:44,093 INFO L226 Difference]: Without dead ends: 2240 [2021-02-24 00:04:44,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-02-24 00:04:44,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2021-02-24 00:04:44,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 1848. [2021-02-24 00:04:44,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1848 states. [2021-02-24 00:04:44,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 2325 transitions. [2021-02-24 00:04:44,403 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 2325 transitions. Word has length 145 [2021-02-24 00:04:44,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:04:44,404 INFO L480 AbstractCegarLoop]: Abstraction has 1848 states and 2325 transitions. [2021-02-24 00:04:44,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:04:44,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 2325 transitions. [2021-02-24 00:04:44,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-02-24 00:04:44,408 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:04:44,409 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-02-24 00:04:44,409 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 00:04:44,409 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:04:44,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:04:44,410 INFO L82 PathProgramCache]: Analyzing trace with hash 850123451, now seen corresponding path program 1 times [2021-02-24 00:04:44,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:04:44,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272430628] [2021-02-24 00:04:44,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:04:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:44,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:44,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:44,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:44,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:44,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:44,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:44,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:04:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:44,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:44,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:44,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:44,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:44,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:04:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:44,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:44,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:44,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:44,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:44,733 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:04:44,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272430628] [2021-02-24 00:04:44,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:04:44,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 00:04:44,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221061850] [2021-02-24 00:04:44,735 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 00:04:44,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:04:44,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 00:04:44,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-24 00:04:44,736 INFO L87 Difference]: Start difference. First operand 1848 states and 2325 transitions. Second operand 7 states. [2021-02-24 00:04:49,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:04:49,884 INFO L93 Difference]: Finished difference Result 4810 states and 6291 transitions. [2021-02-24 00:04:49,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 00:04:49,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 152 [2021-02-24 00:04:49,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:04:49,915 INFO L225 Difference]: With dead ends: 4810 [2021-02-24 00:04:49,916 INFO L226 Difference]: Without dead ends: 2987 [2021-02-24 00:04:49,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:04:49,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2021-02-24 00:04:50,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2924. [2021-02-24 00:04:50,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2924 states. [2021-02-24 00:04:50,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 3648 transitions. [2021-02-24 00:04:50,375 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 3648 transitions. Word has length 152 [2021-02-24 00:04:50,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:04:50,375 INFO L480 AbstractCegarLoop]: Abstraction has 2924 states and 3648 transitions. [2021-02-24 00:04:50,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 00:04:50,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 3648 transitions. [2021-02-24 00:04:50,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-02-24 00:04:50,383 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:04:50,383 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:04:50,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 00:04:50,384 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:04:50,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:04:50,384 INFO L82 PathProgramCache]: Analyzing trace with hash -935215872, now seen corresponding path program 1 times [2021-02-24 00:04:50,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:04:50,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911522800] [2021-02-24 00:04:50,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:04:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:50,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:50,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:50,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:50,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:50,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:50,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:50,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:04:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:50,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:50,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:50,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:04:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:50,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:50,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:50,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:50,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:04:50,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 00:04:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:50,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:50,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:50,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:50,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:04:50,776 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 147 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-24 00:04:50,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911522800] [2021-02-24 00:04:50,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:04:50,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-24 00:04:50,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165338208] [2021-02-24 00:04:50,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 00:04:50,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:04:50,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 00:04:50,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-24 00:04:50,780 INFO L87 Difference]: Start difference. First operand 2924 states and 3648 transitions. Second operand 7 states. [2021-02-24 00:04:55,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:04:55,152 INFO L93 Difference]: Finished difference Result 6118 states and 8180 transitions. [2021-02-24 00:04:55,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 00:04:55,152 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 228 [2021-02-24 00:04:55,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:04:55,198 INFO L225 Difference]: With dead ends: 6118 [2021-02-24 00:04:55,198 INFO L226 Difference]: Without dead ends: 3613 [2021-02-24 00:04:55,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:04:55,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3613 states. [2021-02-24 00:04:55,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3613 to 3299. [2021-02-24 00:04:55,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3299 states. [2021-02-24 00:04:55,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 4070 transitions. [2021-02-24 00:04:55,824 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 4070 transitions. Word has length 228 [2021-02-24 00:04:55,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:04:55,826 INFO L480 AbstractCegarLoop]: Abstraction has 3299 states and 4070 transitions. [2021-02-24 00:04:55,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 00:04:55,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4070 transitions. [2021-02-24 00:04:55,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-02-24 00:04:55,837 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:04:55,838 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:04:55,842 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 00:04:55,842 INFO L428 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:04:55,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:04:55,843 INFO L82 PathProgramCache]: Analyzing trace with hash -55661481, now seen corresponding path program 1 times [2021-02-24 00:04:55,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:04:55,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14192377] [2021-02-24 00:04:55,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:04:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:55,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:55,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:55,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:55,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:55,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:55,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:55,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:55,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:56,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:04:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:56,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:56,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:56,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:04:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:56,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:56,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:56,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-24 00:04:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:04:56,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:56,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:04:56,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:04:56,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:04:56,220 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-02-24 00:04:56,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14192377] [2021-02-24 00:04:56,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:04:56,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-02-24 00:04:56,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926480090] [2021-02-24 00:04:56,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 00:04:56,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:04:56,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 00:04:56,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 00:04:56,223 INFO L87 Difference]: Start difference. First operand 3299 states and 4070 transitions. Second operand 5 states. [2021-02-24 00:05:00,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:05:00,432 INFO L93 Difference]: Finished difference Result 8211 states and 10415 transitions. [2021-02-24 00:05:00,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 00:05:00,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 236 [2021-02-24 00:05:00,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:05:00,497 INFO L225 Difference]: With dead ends: 8211 [2021-02-24 00:05:00,498 INFO L226 Difference]: Without dead ends: 5331 [2021-02-24 00:05:00,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:05:00,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5331 states. [2021-02-24 00:05:01,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5331 to 5300. [2021-02-24 00:05:01,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5300 states. [2021-02-24 00:05:01,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5300 states to 5300 states and 6618 transitions. [2021-02-24 00:05:01,388 INFO L78 Accepts]: Start accepts. Automaton has 5300 states and 6618 transitions. Word has length 236 [2021-02-24 00:05:01,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:05:01,388 INFO L480 AbstractCegarLoop]: Abstraction has 5300 states and 6618 transitions. [2021-02-24 00:05:01,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 00:05:01,389 INFO L276 IsEmpty]: Start isEmpty. Operand 5300 states and 6618 transitions. [2021-02-24 00:05:01,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-02-24 00:05:01,397 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:05:01,397 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:05:01,398 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 00:05:01,398 INFO L428 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:05:01,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:05:01,398 INFO L82 PathProgramCache]: Analyzing trace with hash 488050016, now seen corresponding path program 1 times [2021-02-24 00:05:01,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:05:01,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870561780] [2021-02-24 00:05:01,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:05:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:01,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:01,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:01,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:01,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:01,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:01,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:01,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:05:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:01,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:01,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:01,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:05:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:01,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:01,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:01,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:01,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:01,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-02-24 00:05:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:01,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:01,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:01,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:01,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:05:01,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:01,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-24 00:05:01,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870561780] [2021-02-24 00:05:01,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:05:01,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-24 00:05:01,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142988106] [2021-02-24 00:05:01,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:05:01,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:05:01,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:05:01,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:05:01,872 INFO L87 Difference]: Start difference. First operand 5300 states and 6618 transitions. Second operand 8 states. [2021-02-24 00:05:02,588 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-02-24 00:05:08,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:05:08,531 INFO L93 Difference]: Finished difference Result 13558 states and 18074 transitions. [2021-02-24 00:05:08,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 00:05:08,531 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 259 [2021-02-24 00:05:08,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:05:08,629 INFO L225 Difference]: With dead ends: 13558 [2021-02-24 00:05:08,629 INFO L226 Difference]: Without dead ends: 8677 [2021-02-24 00:05:08,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:05:08,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8677 states. [2021-02-24 00:05:10,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8677 to 7546. [2021-02-24 00:05:10,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7546 states. [2021-02-24 00:05:10,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7546 states to 7546 states and 9444 transitions. [2021-02-24 00:05:10,043 INFO L78 Accepts]: Start accepts. Automaton has 7546 states and 9444 transitions. Word has length 259 [2021-02-24 00:05:10,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:05:10,044 INFO L480 AbstractCegarLoop]: Abstraction has 7546 states and 9444 transitions. [2021-02-24 00:05:10,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:05:10,044 INFO L276 IsEmpty]: Start isEmpty. Operand 7546 states and 9444 transitions. [2021-02-24 00:05:10,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2021-02-24 00:05:10,058 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:05:10,058 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-02-24 00:05:10,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 00:05:10,059 INFO L428 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:05:10,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:05:10,059 INFO L82 PathProgramCache]: Analyzing trace with hash -271663265, now seen corresponding path program 1 times [2021-02-24 00:05:10,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:05:10,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469745766] [2021-02-24 00:05:10,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:05:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:10,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:10,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:10,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:10,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:10,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:10,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:10,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:10,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:10,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:05:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:10,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:10,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:10,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:05:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:10,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:10,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:10,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-02-24 00:05:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:10,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:10,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:10,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:10,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:10,451 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-02-24 00:05:10,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469745766] [2021-02-24 00:05:10,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:05:10,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-02-24 00:05:10,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663389035] [2021-02-24 00:05:10,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 00:05:10,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:05:10,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 00:05:10,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 00:05:10,454 INFO L87 Difference]: Start difference. First operand 7546 states and 9444 transitions. Second operand 5 states. [2021-02-24 00:05:14,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:05:14,947 INFO L93 Difference]: Finished difference Result 8952 states and 11239 transitions. [2021-02-24 00:05:14,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 00:05:14,948 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 309 [2021-02-24 00:05:14,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:05:14,986 INFO L225 Difference]: With dead ends: 8952 [2021-02-24 00:05:14,986 INFO L226 Difference]: Without dead ends: 8950 [2021-02-24 00:05:14,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:05:15,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8950 states. [2021-02-24 00:05:16,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8950 to 8930. [2021-02-24 00:05:16,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8930 states. [2021-02-24 00:05:16,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8930 states to 8930 states and 11217 transitions. [2021-02-24 00:05:16,457 INFO L78 Accepts]: Start accepts. Automaton has 8930 states and 11217 transitions. Word has length 309 [2021-02-24 00:05:16,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:05:16,458 INFO L480 AbstractCegarLoop]: Abstraction has 8930 states and 11217 transitions. [2021-02-24 00:05:16,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 00:05:16,458 INFO L276 IsEmpty]: Start isEmpty. Operand 8930 states and 11217 transitions. [2021-02-24 00:05:16,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-02-24 00:05:16,474 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:05:16,474 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:05:16,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 00:05:16,475 INFO L428 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:05:16,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:05:16,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1072310289, now seen corresponding path program 1 times [2021-02-24 00:05:16,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:05:16,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833539528] [2021-02-24 00:05:16,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:05:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:16,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:16,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:16,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:16,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:16,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:16,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:16,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:05:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:16,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:16,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:16,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:05:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:16,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:16,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:16,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:16,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:05:16,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:05:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:16,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:16,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:16,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:16,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:16,907 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 182 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-24 00:05:16,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833539528] [2021-02-24 00:05:16,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:05:16,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-24 00:05:16,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795722260] [2021-02-24 00:05:16,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 00:05:16,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:05:16,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 00:05:16,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-24 00:05:16,910 INFO L87 Difference]: Start difference. First operand 8930 states and 11217 transitions. Second operand 7 states. [2021-02-24 00:05:22,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:05:22,589 INFO L93 Difference]: Finished difference Result 19319 states and 24436 transitions. [2021-02-24 00:05:22,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 00:05:22,590 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 320 [2021-02-24 00:05:22,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:05:22,680 INFO L225 Difference]: With dead ends: 19319 [2021-02-24 00:05:22,681 INFO L226 Difference]: Without dead ends: 10815 [2021-02-24 00:05:22,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-02-24 00:05:22,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10815 states. [2021-02-24 00:05:24,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10815 to 10393. [2021-02-24 00:05:24,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10393 states. [2021-02-24 00:05:24,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10393 states to 10393 states and 12845 transitions. [2021-02-24 00:05:24,435 INFO L78 Accepts]: Start accepts. Automaton has 10393 states and 12845 transitions. Word has length 320 [2021-02-24 00:05:24,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:05:24,436 INFO L480 AbstractCegarLoop]: Abstraction has 10393 states and 12845 transitions. [2021-02-24 00:05:24,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 00:05:24,436 INFO L276 IsEmpty]: Start isEmpty. Operand 10393 states and 12845 transitions. [2021-02-24 00:05:24,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-02-24 00:05:24,448 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:05:24,449 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:05:24,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 00:05:24,449 INFO L428 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:05:24,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:05:24,450 INFO L82 PathProgramCache]: Analyzing trace with hash -180117153, now seen corresponding path program 1 times [2021-02-24 00:05:24,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:05:24,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344725808] [2021-02-24 00:05:24,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:05:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:24,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:24,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:24,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:24,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:05:24,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:24,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:05:24,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:24,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:24,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:05:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:24,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:24,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:24,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:05:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:24,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:24,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:24,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:05:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:24,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:24,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:24,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:24,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:05:24,827 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-02-24 00:05:24,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [344725808] [2021-02-24 00:05:24,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:05:24,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-02-24 00:05:24,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977994859] [2021-02-24 00:05:24,828 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 00:05:24,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:05:24,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 00:05:24,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 00:05:24,832 INFO L87 Difference]: Start difference. First operand 10393 states and 12845 transitions. Second operand 5 states. [2021-02-24 00:05:28,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:05:28,893 INFO L93 Difference]: Finished difference Result 18952 states and 23438 transitions. [2021-02-24 00:05:28,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 00:05:28,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 321 [2021-02-24 00:05:28,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:05:28,963 INFO L225 Difference]: With dead ends: 18952 [2021-02-24 00:05:28,964 INFO L226 Difference]: Without dead ends: 10397 [2021-02-24 00:05:28,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:05:29,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10397 states. [2021-02-24 00:05:30,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10397 to 10391. [2021-02-24 00:05:30,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10391 states. [2021-02-24 00:05:30,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10391 states to 10391 states and 12760 transitions. [2021-02-24 00:05:30,594 INFO L78 Accepts]: Start accepts. Automaton has 10391 states and 12760 transitions. Word has length 321 [2021-02-24 00:05:30,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:05:30,595 INFO L480 AbstractCegarLoop]: Abstraction has 10391 states and 12760 transitions. [2021-02-24 00:05:30,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 00:05:30,596 INFO L276 IsEmpty]: Start isEmpty. Operand 10391 states and 12760 transitions. [2021-02-24 00:05:30,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2021-02-24 00:05:30,627 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:05:30,627 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:05:30,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 00:05:30,628 INFO L428 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:05:30,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:05:30,628 INFO L82 PathProgramCache]: Analyzing trace with hash -336989260, now seen corresponding path program 1 times [2021-02-24 00:05:30,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:05:30,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171253161] [2021-02-24 00:05:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:05:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:30,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:30,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:30,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:30,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:30,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:30,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:30,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:05:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:30,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:30,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:30,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:05:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:30,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:30,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:30,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:05:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:30,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:30,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:30,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:30,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:05:30,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-02-24 00:05:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:30,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:30,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:30,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:30,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:31,125 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-02-24 00:05:31,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171253161] [2021-02-24 00:05:31,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:05:31,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-24 00:05:31,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554947326] [2021-02-24 00:05:31,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 00:05:31,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:05:31,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 00:05:31,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-24 00:05:31,127 INFO L87 Difference]: Start difference. First operand 10391 states and 12760 transitions. Second operand 7 states. [2021-02-24 00:05:37,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:05:37,519 INFO L93 Difference]: Finished difference Result 21060 states and 25816 transitions. [2021-02-24 00:05:37,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 00:05:37,519 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 437 [2021-02-24 00:05:37,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:05:37,574 INFO L225 Difference]: With dead ends: 21060 [2021-02-24 00:05:37,574 INFO L226 Difference]: Without dead ends: 10889 [2021-02-24 00:05:37,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:05:37,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10889 states. [2021-02-24 00:05:39,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10889 to 10687. [2021-02-24 00:05:39,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10687 states. [2021-02-24 00:05:39,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10687 states to 10687 states and 12697 transitions. [2021-02-24 00:05:39,049 INFO L78 Accepts]: Start accepts. Automaton has 10687 states and 12697 transitions. Word has length 437 [2021-02-24 00:05:39,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:05:39,050 INFO L480 AbstractCegarLoop]: Abstraction has 10687 states and 12697 transitions. [2021-02-24 00:05:39,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 00:05:39,051 INFO L276 IsEmpty]: Start isEmpty. Operand 10687 states and 12697 transitions. [2021-02-24 00:05:39,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2021-02-24 00:05:39,079 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:05:39,079 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:05:39,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 00:05:39,080 INFO L428 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:05:39,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:05:39,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1580472031, now seen corresponding path program 1 times [2021-02-24 00:05:39,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:05:39,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946279815] [2021-02-24 00:05:39,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:05:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:39,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:39,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:39,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:39,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:39,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:05:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:39,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:39,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:39,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:05:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:39,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:39,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:39,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:05:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:39,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:39,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:39,388 WARN L141 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-02-24 00:05:39,389 WARN L147 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size 9 [2021-02-24 00:05:39,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:39,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:39,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-02-24 00:05:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:39,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:39,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:39,593 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2021-02-24 00:05:39,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946279815] [2021-02-24 00:05:39,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:05:39,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-02-24 00:05:39,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130801975] [2021-02-24 00:05:39,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 00:05:39,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:05:39,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 00:05:39,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 00:05:39,597 INFO L87 Difference]: Start difference. First operand 10687 states and 12697 transitions. Second operand 5 states. [2021-02-24 00:05:44,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:05:44,706 INFO L93 Difference]: Finished difference Result 20516 states and 24427 transitions. [2021-02-24 00:05:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 00:05:44,706 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 466 [2021-02-24 00:05:44,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:05:44,750 INFO L225 Difference]: With dead ends: 20516 [2021-02-24 00:05:44,750 INFO L226 Difference]: Without dead ends: 11211 [2021-02-24 00:05:44,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:05:44,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11211 states. [2021-02-24 00:05:46,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11211 to 11205. [2021-02-24 00:05:46,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11205 states. [2021-02-24 00:05:46,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11205 states to 11205 states and 13086 transitions. [2021-02-24 00:05:46,511 INFO L78 Accepts]: Start accepts. Automaton has 11205 states and 13086 transitions. Word has length 466 [2021-02-24 00:05:46,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:05:46,512 INFO L480 AbstractCegarLoop]: Abstraction has 11205 states and 13086 transitions. [2021-02-24 00:05:46,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 00:05:46,512 INFO L276 IsEmpty]: Start isEmpty. Operand 11205 states and 13086 transitions. [2021-02-24 00:05:46,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-02-24 00:05:46,543 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:05:46,544 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:05:46,544 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-24 00:05:46,544 INFO L428 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:05:46,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:05:46,545 INFO L82 PathProgramCache]: Analyzing trace with hash 372106375, now seen corresponding path program 1 times [2021-02-24 00:05:46,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:05:46,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921176962] [2021-02-24 00:05:46,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:05:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:46,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:46,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:46,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:46,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:46,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:46,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:46,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:46,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:46,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:05:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:46,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:46,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:46,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:05:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:46,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:46,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:46,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:05:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:46,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:46,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:46,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-02-24 00:05:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:46,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:46,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:46,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:46,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:47,336 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 118 proven. 3 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2021-02-24 00:05:47,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921176962] [2021-02-24 00:05:47,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:05:47,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-02-24 00:05:47,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858494077] [2021-02-24 00:05:47,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 00:05:47,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:05:47,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 00:05:47,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 00:05:47,339 INFO L87 Difference]: Start difference. First operand 11205 states and 13086 transitions. Second operand 5 states. [2021-02-24 00:05:52,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:05:52,257 INFO L93 Difference]: Finished difference Result 21650 states and 25350 transitions. [2021-02-24 00:05:52,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 00:05:52,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 510 [2021-02-24 00:05:52,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:05:52,300 INFO L225 Difference]: With dead ends: 21650 [2021-02-24 00:05:52,300 INFO L226 Difference]: Without dead ends: 12278 [2021-02-24 00:05:52,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:05:52,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12278 states. [2021-02-24 00:05:54,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12278 to 12218. [2021-02-24 00:05:54,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12218 states. [2021-02-24 00:05:54,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12218 states to 12218 states and 14311 transitions. [2021-02-24 00:05:54,045 INFO L78 Accepts]: Start accepts. Automaton has 12218 states and 14311 transitions. Word has length 510 [2021-02-24 00:05:54,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:05:54,046 INFO L480 AbstractCegarLoop]: Abstraction has 12218 states and 14311 transitions. [2021-02-24 00:05:54,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 00:05:54,046 INFO L276 IsEmpty]: Start isEmpty. Operand 12218 states and 14311 transitions. [2021-02-24 00:05:54,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2021-02-24 00:05:54,066 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:05:54,066 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:05:54,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-24 00:05:54,067 INFO L428 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:05:54,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:05:54,067 INFO L82 PathProgramCache]: Analyzing trace with hash -34938163, now seen corresponding path program 1 times [2021-02-24 00:05:54,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:05:54,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463664705] [2021-02-24 00:05:54,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:05:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:54,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:54,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:54,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:54,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:05:54,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:54,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:54,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:05:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:54,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:54,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:54,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:05:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:54,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:54,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:54,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:05:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:54,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:54,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:54,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:54,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:05:54,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-02-24 00:05:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:54,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:54,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:05:54,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:54,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 00:05:54,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:54,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:05:54,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-02-24 00:05:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:05:54,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:05:54,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:05:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 381 proven. 99 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2021-02-24 00:05:54,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463664705] [2021-02-24 00:05:54,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:05:54,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-24 00:05:54,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434307386] [2021-02-24 00:05:54,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:05:54,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:05:54,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:05:54,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:05:54,840 INFO L87 Difference]: Start difference. First operand 12218 states and 14311 transitions. Second operand 8 states. [2021-02-24 00:06:01,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:06:01,636 INFO L93 Difference]: Finished difference Result 25016 states and 30387 transitions. [2021-02-24 00:06:01,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 00:06:01,637 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 542 [2021-02-24 00:06:01,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:06:01,708 INFO L225 Difference]: With dead ends: 25016 [2021-02-24 00:06:01,709 INFO L226 Difference]: Without dead ends: 14631 [2021-02-24 00:06:01,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:06:01,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14631 states. [2021-02-24 00:06:03,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14631 to 12646. [2021-02-24 00:06:03,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12646 states. [2021-02-24 00:06:03,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12646 states to 12646 states and 14858 transitions. [2021-02-24 00:06:03,526 INFO L78 Accepts]: Start accepts. Automaton has 12646 states and 14858 transitions. Word has length 542 [2021-02-24 00:06:03,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:06:03,527 INFO L480 AbstractCegarLoop]: Abstraction has 12646 states and 14858 transitions. [2021-02-24 00:06:03,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:06:03,527 INFO L276 IsEmpty]: Start isEmpty. Operand 12646 states and 14858 transitions. [2021-02-24 00:06:03,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2021-02-24 00:06:03,548 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:06:03,548 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-02-24 00:06:03,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-24 00:06:03,549 INFO L428 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:06:03,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:06:03,549 INFO L82 PathProgramCache]: Analyzing trace with hash 789970813, now seen corresponding path program 1 times [2021-02-24 00:06:03,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:06:03,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392211521] [2021-02-24 00:06:03,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:06:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:03,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:03,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:03,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:03,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:03,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:03,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:03,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:06:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:03,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:03,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:03,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:06:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:03,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:03,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:03,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-02-24 00:06:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:03,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:03,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:03,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:03,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:06:03,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-02-24 00:06:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:03,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:03,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:03,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:03,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:03,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2021-02-24 00:06:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:03,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:03,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:04,349 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 381 proven. 99 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2021-02-24 00:06:04,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392211521] [2021-02-24 00:06:04,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:06:04,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-24 00:06:04,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997367188] [2021-02-24 00:06:04,351 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 00:06:04,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:06:04,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 00:06:04,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-24 00:06:04,352 INFO L87 Difference]: Start difference. First operand 12646 states and 14858 transitions. Second operand 7 states. [2021-02-24 00:06:10,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:06:10,992 INFO L93 Difference]: Finished difference Result 26151 states and 30879 transitions. [2021-02-24 00:06:10,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 00:06:10,993 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 557 [2021-02-24 00:06:10,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:06:11,041 INFO L225 Difference]: With dead ends: 26151 [2021-02-24 00:06:11,041 INFO L226 Difference]: Without dead ends: 14816 [2021-02-24 00:06:11,059 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 [2021-02-24 00:06:11,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14816 states. [2021-02-24 00:06:13,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14816 to 13439. [2021-02-24 00:06:13,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13439 states. [2021-02-24 00:06:13,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13439 states to 13439 states and 15783 transitions. [2021-02-24 00:06:13,056 INFO L78 Accepts]: Start accepts. Automaton has 13439 states and 15783 transitions. Word has length 557 [2021-02-24 00:06:13,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:06:13,056 INFO L480 AbstractCegarLoop]: Abstraction has 13439 states and 15783 transitions. [2021-02-24 00:06:13,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 00:06:13,056 INFO L276 IsEmpty]: Start isEmpty. Operand 13439 states and 15783 transitions. [2021-02-24 00:06:13,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2021-02-24 00:06:13,077 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:06:13,078 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:06:13,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-24 00:06:13,078 INFO L428 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:06:13,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:06:13,079 INFO L82 PathProgramCache]: Analyzing trace with hash -448315978, now seen corresponding path program 1 times [2021-02-24 00:06:13,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:06:13,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144343256] [2021-02-24 00:06:13,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:06:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:13,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:13,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:13,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:13,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:13,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:13,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:06:13,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:13,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:13,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:06:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:13,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:13,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:13,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:13,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:13,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:06:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:13,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:13,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:13,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:13,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:06:13,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:06:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:13,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:13,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:13,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:13,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 00:06:13,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:13,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:06:13,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-02-24 00:06:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:13,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:13,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:13,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-02-24 00:06:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:13,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:13,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:13,806 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 178 proven. 392 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-02-24 00:06:13,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144343256] [2021-02-24 00:06:13,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:06:13,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-24 00:06:13,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460789980] [2021-02-24 00:06:13,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 00:06:13,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:06:13,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 00:06:13,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:06:13,808 INFO L87 Difference]: Start difference. First operand 13439 states and 15783 transitions. Second operand 10 states. [2021-02-24 00:06:24,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:06:24,173 INFO L93 Difference]: Finished difference Result 30498 states and 36110 transitions. [2021-02-24 00:06:24,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-24 00:06:24,174 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 575 [2021-02-24 00:06:24,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:06:24,242 INFO L225 Difference]: With dead ends: 30498 [2021-02-24 00:06:24,242 INFO L226 Difference]: Without dead ends: 19282 [2021-02-24 00:06:24,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-02-24 00:06:24,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19282 states. [2021-02-24 00:06:27,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19282 to 18794. [2021-02-24 00:06:27,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18794 states. [2021-02-24 00:06:27,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18794 states to 18794 states and 22072 transitions. [2021-02-24 00:06:27,132 INFO L78 Accepts]: Start accepts. Automaton has 18794 states and 22072 transitions. Word has length 575 [2021-02-24 00:06:27,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:06:27,133 INFO L480 AbstractCegarLoop]: Abstraction has 18794 states and 22072 transitions. [2021-02-24 00:06:27,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 00:06:27,133 INFO L276 IsEmpty]: Start isEmpty. Operand 18794 states and 22072 transitions. [2021-02-24 00:06:27,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2021-02-24 00:06:27,169 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:06:27,170 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:06:27,170 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-24 00:06:27,170 INFO L428 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:06:27,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:06:27,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1287433466, now seen corresponding path program 1 times [2021-02-24 00:06:27,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:06:27,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319374691] [2021-02-24 00:06:27,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:06:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:27,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:27,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:27,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:27,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:06:27,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:27,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:06:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:27,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:27,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:27,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:06:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:27,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:27,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-02-24 00:06:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:27,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:27,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:06:27,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-02-24 00:06:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:27,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:27,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 00:06:27,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:06:27,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-02-24 00:06:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:27,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:27,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2021-02-24 00:06:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:27,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:27,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:28,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 248 proven. 558 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2021-02-24 00:06:28,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319374691] [2021-02-24 00:06:28,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:06:28,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-24 00:06:28,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440897315] [2021-02-24 00:06:28,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 00:06:28,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:06:28,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 00:06:28,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:06:28,164 INFO L87 Difference]: Start difference. First operand 18794 states and 22072 transitions. Second operand 10 states. [2021-02-24 00:06:39,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:06:39,735 INFO L93 Difference]: Finished difference Result 42059 states and 49930 transitions. [2021-02-24 00:06:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-24 00:06:39,736 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 666 [2021-02-24 00:06:39,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:06:39,813 INFO L225 Difference]: With dead ends: 42059 [2021-02-24 00:06:39,814 INFO L226 Difference]: Without dead ends: 24307 [2021-02-24 00:06:39,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-02-24 00:06:39,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24307 states. [2021-02-24 00:06:42,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24307 to 21769. [2021-02-24 00:06:42,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21769 states. [2021-02-24 00:06:43,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21769 states to 21769 states and 25477 transitions. [2021-02-24 00:06:43,033 INFO L78 Accepts]: Start accepts. Automaton has 21769 states and 25477 transitions. Word has length 666 [2021-02-24 00:06:43,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:06:43,033 INFO L480 AbstractCegarLoop]: Abstraction has 21769 states and 25477 transitions. [2021-02-24 00:06:43,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 00:06:43,033 INFO L276 IsEmpty]: Start isEmpty. Operand 21769 states and 25477 transitions. [2021-02-24 00:06:43,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2021-02-24 00:06:43,061 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:06:43,062 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:06:43,063 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-24 00:06:43,063 INFO L428 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:06:43,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:06:43,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1088997497, now seen corresponding path program 1 times [2021-02-24 00:06:43,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:06:43,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207416801] [2021-02-24 00:06:43,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:06:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:43,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:43,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:43,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:43,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:43,472 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-02-24 00:06:43,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:06:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:43,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:43,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:43,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:43,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:43,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:06:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:43,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:43,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:43,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:43,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:43,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:06:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:43,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:43,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:43,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:43,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:43,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:43,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:43,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2021-02-24 00:06:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:43,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:43,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:43,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2021-02-24 00:06:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:43,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:43,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:44,135 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 173 proven. 8 refuted. 0 times theorem prover too weak. 749 trivial. 0 not checked. [2021-02-24 00:06:44,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1207416801] [2021-02-24 00:06:44,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:06:44,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-02-24 00:06:44,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882063068] [2021-02-24 00:06:44,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 00:06:44,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:06:44,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 00:06:44,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 00:06:44,137 INFO L87 Difference]: Start difference. First operand 21769 states and 25477 transitions. Second operand 5 states. [2021-02-24 00:06:49,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:06:49,410 INFO L93 Difference]: Finished difference Result 38893 states and 45500 transitions. [2021-02-24 00:06:49,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 00:06:49,410 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 687 [2021-02-24 00:06:49,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:06:49,461 INFO L225 Difference]: With dead ends: 38893 [2021-02-24 00:06:49,462 INFO L226 Difference]: Without dead ends: 19456 [2021-02-24 00:06:49,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:06:49,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19456 states. [2021-02-24 00:06:52,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19456 to 19424. [2021-02-24 00:06:52,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19424 states. [2021-02-24 00:06:52,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19424 states to 19424 states and 22629 transitions. [2021-02-24 00:06:52,574 INFO L78 Accepts]: Start accepts. Automaton has 19424 states and 22629 transitions. Word has length 687 [2021-02-24 00:06:52,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:06:52,575 INFO L480 AbstractCegarLoop]: Abstraction has 19424 states and 22629 transitions. [2021-02-24 00:06:52,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 00:06:52,575 INFO L276 IsEmpty]: Start isEmpty. Operand 19424 states and 22629 transitions. [2021-02-24 00:06:52,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2021-02-24 00:06:52,619 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:06:52,620 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:06:52,620 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-24 00:06:52,620 INFO L428 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:06:52,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:06:52,621 INFO L82 PathProgramCache]: Analyzing trace with hash 887515331, now seen corresponding path program 1 times [2021-02-24 00:06:52,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:06:52,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797718881] [2021-02-24 00:06:52,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:06:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:52,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:52,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:52,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:52,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:52,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:52,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:52,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:06:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:52,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:52,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:52,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:06:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:52,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:52,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:52,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:52,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:52,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:06:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:52,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:52,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:53,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:53,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:06:53,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:53,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:06:53,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-02-24 00:06:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:53,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:53,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:53,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-02-24 00:06:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:53,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:53,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:53,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2021-02-24 00:06:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:06:53,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:06:53,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:06:53,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 341 proven. 321 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2021-02-24 00:06:53,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797718881] [2021-02-24 00:06:53,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:06:53,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-24 00:06:53,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704572099] [2021-02-24 00:06:53,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:06:53,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:06:53,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:06:53,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:06:53,664 INFO L87 Difference]: Start difference. First operand 19424 states and 22629 transitions. Second operand 8 states. [2021-02-24 00:07:00,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:07:00,451 INFO L93 Difference]: Finished difference Result 42998 states and 50546 transitions. [2021-02-24 00:07:00,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 00:07:00,452 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 708 [2021-02-24 00:07:00,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:07:00,525 INFO L225 Difference]: With dead ends: 42998 [2021-02-24 00:07:00,526 INFO L226 Difference]: Without dead ends: 23993 [2021-02-24 00:07:00,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:07:00,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23993 states. [2021-02-24 00:07:03,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23993 to 21913. [2021-02-24 00:07:03,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21913 states. [2021-02-24 00:07:03,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21913 states to 21913 states and 25733 transitions. [2021-02-24 00:07:03,920 INFO L78 Accepts]: Start accepts. Automaton has 21913 states and 25733 transitions. Word has length 708 [2021-02-24 00:07:03,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:07:03,920 INFO L480 AbstractCegarLoop]: Abstraction has 21913 states and 25733 transitions. [2021-02-24 00:07:03,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:07:03,920 INFO L276 IsEmpty]: Start isEmpty. Operand 21913 states and 25733 transitions. [2021-02-24 00:07:03,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 765 [2021-02-24 00:07:03,951 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:07:03,952 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:07:03,952 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-02-24 00:07:03,952 INFO L428 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:07:03,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:07:03,952 INFO L82 PathProgramCache]: Analyzing trace with hash 814376275, now seen corresponding path program 1 times [2021-02-24 00:07:03,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:07:03,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946045451] [2021-02-24 00:07:03,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:07:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:04,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:04,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:04,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:04,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:07:04,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:04,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:04,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:07:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:04,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:04,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:04,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:07:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:04,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:04,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:04,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:04,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:07:04,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:07:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:04,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:04,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:07:04,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:04,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:07:04,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:04,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:07:04,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-02-24 00:07:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:04,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:04,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:04,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-02-24 00:07:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:04,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:04,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:04,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2021-02-24 00:07:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:04,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:04,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:04,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2021-02-24 00:07:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:04,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:04,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:04,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 344 proven. 306 refuted. 0 times theorem prover too weak. 1048 trivial. 0 not checked. [2021-02-24 00:07:04,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946045451] [2021-02-24 00:07:04,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:07:04,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-24 00:07:04,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358276726] [2021-02-24 00:07:04,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:07:04,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:07:04,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:07:04,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:07:04,855 INFO L87 Difference]: Start difference. First operand 21913 states and 25733 transitions. Second operand 8 states. [2021-02-24 00:07:15,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:07:15,781 INFO L93 Difference]: Finished difference Result 52246 states and 61748 transitions. [2021-02-24 00:07:15,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 00:07:15,781 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 764 [2021-02-24 00:07:15,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:07:15,877 INFO L225 Difference]: With dead ends: 52246 [2021-02-24 00:07:15,877 INFO L226 Difference]: Without dead ends: 30752 [2021-02-24 00:07:15,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:07:15,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30752 states. [2021-02-24 00:07:20,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30752 to 30269. [2021-02-24 00:07:20,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30269 states. [2021-02-24 00:07:20,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30269 states to 30269 states and 35264 transitions. [2021-02-24 00:07:20,550 INFO L78 Accepts]: Start accepts. Automaton has 30269 states and 35264 transitions. Word has length 764 [2021-02-24 00:07:20,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:07:20,550 INFO L480 AbstractCegarLoop]: Abstraction has 30269 states and 35264 transitions. [2021-02-24 00:07:20,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:07:20,550 INFO L276 IsEmpty]: Start isEmpty. Operand 30269 states and 35264 transitions. [2021-02-24 00:07:20,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2021-02-24 00:07:20,592 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:07:20,593 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-02-24 00:07:20,593 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-02-24 00:07:20,593 INFO L428 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:07:20,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:07:20,594 INFO L82 PathProgramCache]: Analyzing trace with hash -835271169, now seen corresponding path program 1 times [2021-02-24 00:07:20,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:07:20,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048347450] [2021-02-24 00:07:20,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:07:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:20,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:20,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:20,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:20,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:07:20,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:20,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:20,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:07:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:20,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:20,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:20,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:07:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:20,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:20,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:20,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 00:07:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:20,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:20,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:20,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:20,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:07:20,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:20,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:07:20,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-02-24 00:07:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:21,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:21,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:07:21,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:21,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:07:21,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:21,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:07:21,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2021-02-24 00:07:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:21,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:21,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:21,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2021-02-24 00:07:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:21,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:21,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:21,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 643 [2021-02-24 00:07:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:21,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:21,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:21,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1802 backedges. 467 proven. 251 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2021-02-24 00:07:21,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048347450] [2021-02-24 00:07:21,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:07:21,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-02-24 00:07:21,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226138052] [2021-02-24 00:07:21,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 00:07:21,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:07:21,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 00:07:21,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-02-24 00:07:21,773 INFO L87 Difference]: Start difference. First operand 30269 states and 35264 transitions. Second operand 9 states. [2021-02-24 00:07:33,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:07:33,864 INFO L93 Difference]: Finished difference Result 67066 states and 78358 transitions. [2021-02-24 00:07:33,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-24 00:07:33,864 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 791 [2021-02-24 00:07:33,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:07:34,013 INFO L225 Difference]: With dead ends: 67066 [2021-02-24 00:07:34,014 INFO L226 Difference]: Without dead ends: 37237 [2021-02-24 00:07:34,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-24 00:07:34,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37237 states. [2021-02-24 00:07:39,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37237 to 35601. [2021-02-24 00:07:39,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35601 states. [2021-02-24 00:07:39,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35601 states to 35601 states and 40705 transitions. [2021-02-24 00:07:39,644 INFO L78 Accepts]: Start accepts. Automaton has 35601 states and 40705 transitions. Word has length 791 [2021-02-24 00:07:39,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:07:39,644 INFO L480 AbstractCegarLoop]: Abstraction has 35601 states and 40705 transitions. [2021-02-24 00:07:39,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 00:07:39,644 INFO L276 IsEmpty]: Start isEmpty. Operand 35601 states and 40705 transitions. [2021-02-24 00:07:39,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2021-02-24 00:07:39,703 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:07:39,704 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:07:39,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-02-24 00:07:39,704 INFO L428 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:07:39,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:07:39,705 INFO L82 PathProgramCache]: Analyzing trace with hash 446178303, now seen corresponding path program 1 times [2021-02-24 00:07:39,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:07:39,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114506897] [2021-02-24 00:07:39,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:07:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:39,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:39,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:39,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:39,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:07:39,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:39,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:07:39,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:39,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:40,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:07:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:40,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:40,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:40,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-02-24 00:07:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:40,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:40,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:40,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-02-24 00:07:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:40,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:40,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:40,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-02-24 00:07:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:40,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:40,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:40,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2021-02-24 00:07:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:40,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:40,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:40,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2021-02-24 00:07:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:40,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:40,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:40,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2021-02-24 00:07:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:07:40,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:40,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:07:40,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:40,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:07:40,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:07:40,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:07:40,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 241 proven. 6 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2021-02-24 00:07:40,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114506897] [2021-02-24 00:07:40,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:07:40,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-02-24 00:07:40,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213357733] [2021-02-24 00:07:40,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 00:07:40,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:07:40,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 00:07:40,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:07:40,687 INFO L87 Difference]: Start difference. First operand 35601 states and 40705 transitions. Second operand 6 states. [2021-02-24 00:07:53,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:07:53,618 INFO L93 Difference]: Finished difference Result 80489 states and 92265 transitions. [2021-02-24 00:07:53,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 00:07:53,618 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 799 [2021-02-24 00:07:53,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:07:53,963 INFO L225 Difference]: With dead ends: 80489 [2021-02-24 00:07:53,963 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 00:07:54,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:07:54,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 00:07:54,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 00:07:54,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 00:07:54,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 00:07:54,127 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 799 [2021-02-24 00:07:54,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:07:54,128 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 00:07:54,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 00:07:54,128 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 00:07:54,128 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 00:07:54,128 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-02-24 00:07:54,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 00:07:56,427 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2021-02-24 00:08:02,553 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:08:03,053 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:08:03,291 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:08:15,600 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:08:16,057 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:08:16,262 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:08:18,195 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:08:18,664 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:08:18,867 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:08:27,084 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:08:27,558 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:08:27,764 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:08:33,924 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:08:34,384 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:08:34,585 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:08:39,966 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:08:40,423 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:08:40,626 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:08:44,848 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:08:45,305 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:08:45,507 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:08:49,505 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:08:49,964 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:08:50,167 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:08:52,222 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:08:52,683 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:08:52,883 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:08:55,508 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:08:55,972 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:08:56,178 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:08:58,837 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:08:59,299 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:08:59,497 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:09:08,784 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:09:09,249 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:09:09,451 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:09:10,502 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:09:10,965 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:09:11,201 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:09:13,412 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:09:13,876 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:09:14,077 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:09:24,061 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 77 [2021-02-24 00:09:29,449 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:09:29,915 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:09:30,122 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:09:32,082 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:09:32,539 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:09:32,746 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:09:35,809 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:09:36,266 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:09:36,508 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:09:40,066 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:09:40,530 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:09:40,735 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:09:42,410 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:09:42,877 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:09:43,081 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:09:44,640 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:09:45,101 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:09:45,306 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:09:46,792 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:09:47,253 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:09:47,459 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:09:51,699 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:09:52,171 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:09:52,376 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:09:53,436 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:09:53,895 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:09:54,101 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:09:55,655 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:09:56,116 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:09:56,319 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:09:58,991 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:09:59,453 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:09:59,670 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:02,331 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:02,801 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:03,005 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:06,060 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:06,526 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:06,735 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:08,270 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:08,736 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:08,942 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:10,479 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:10,950 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:11,156 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:13,241 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:13,707 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:13,913 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:21,446 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:21,945 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:22,149 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:23,209 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:23,676 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:23,878 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:30,679 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:31,143 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:31,352 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:35,565 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:36,041 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:36,253 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:39,892 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:40,360 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:40,579 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:44,440 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:44,909 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:45,125 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:47,237 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:47,709 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:47,913 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:48,985 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:49,459 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:49,670 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:53,208 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:53,685 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:53,889 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:10:55,973 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:10:56,466 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:10:56,680 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:11:02,840 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:11:03,320 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:11:03,528 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:11:06,327 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:11:06,805 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:11:07,012 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:11:10,502 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:11:10,963 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:11:11,164 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:11:14,752 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:11:15,239 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:11:15,446 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:11:24,053 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:11:24,535 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:11:24,757 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:11:27,257 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:11:27,744 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:11:27,957 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:11:29,710 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:11:30,188 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:11:30,404 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:11:31,496 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:11:31,991 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:11:32,207 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:11:33,295 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:11:33,779 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:11:33,997 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:11:39,099 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:11:39,580 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:11:39,790 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:11:40,870 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:11:41,348 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:11:41,565 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:11:46,544 WARN L202 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 753 DAG size of output: 444 [2021-02-24 00:11:50,498 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:11:50,956 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:11:51,166 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:11:54,025 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:11:54,504 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:11:54,718 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:11:56,338 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:11:56,823 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:11:57,034 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:12:00,223 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:12:00,705 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:12:00,915 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:12:02,017 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:12:02,503 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:12:02,718 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:12:06,202 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:12:06,669 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:12:06,885 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:12:08,010 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:12:08,498 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:12:08,735 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:12:16,047 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:12:16,542 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:12:16,756 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:12:21,373 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:12:21,942 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:12:22,155 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:12:23,258 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:12:23,740 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:12:23,957 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:12:32,936 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:12:33,437 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:12:33,662 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:12:41,390 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 103 [2021-02-24 00:12:43,258 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:12:43,762 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:12:43,974 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:12:44,109 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 151 [2021-02-24 00:12:47,156 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 154 [2021-02-24 00:12:48,980 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 150 [2021-02-24 00:12:51,349 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 152 [2021-02-24 00:12:53,976 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 150 [2021-02-24 00:12:54,218 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 143 [2021-02-24 00:12:55,216 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 152 [2021-02-24 00:12:56,922 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:12:57,400 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:12:57,610 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:12:58,989 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2021-02-24 00:12:59,406 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:12:59,884 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:13:00,096 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:13:34,484 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:13:34,968 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:13:35,189 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:13:38,791 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:13:39,270 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:13:39,490 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:13:42,303 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:13:42,760 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:13:42,967 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:13:44,062 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:13:44,551 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:13:44,760 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:13:47,980 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:13:48,461 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:13:48,657 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:13:55,449 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:13:55,908 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:13:56,116 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:13:57,274 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:13:57,758 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:13:57,968 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:13:59,064 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:13:59,538 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:13:59,742 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:14:04,655 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:14:05,131 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:14:05,366 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:14:10,170 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:14:10,660 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:14:10,869 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:14:13,691 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:14:14,164 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:14:14,375 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:14:16,054 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:14:16,542 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:14:16,761 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:14:21,391 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:14:21,854 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:14:22,057 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:14:23,624 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:14:24,113 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:14:24,331 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:14:25,439 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:14:25,927 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:14:26,190 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:14:29,389 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:14:29,869 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:14:30,089 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:14:34,877 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:14:35,334 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:14:35,540 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:14:40,872 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:14:41,370 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:14:41,588 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:14:43,113 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:14:43,588 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:14:43,797 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:14:56,782 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:14:57,256 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:14:57,467 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:15:01,342 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:15:01,899 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:15:02,107 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:15:03,258 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:15:03,813 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:15:04,049 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:15:05,718 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:15:06,200 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:15:06,414 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:15:11,490 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:15:11,990 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:15:12,197 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:15:15,517 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:15:15,987 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:15:16,201 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:15:18,289 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:15:18,769 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:15:18,983 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:15:23,919 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:15:24,387 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:15:24,606 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:15:27,851 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:15:28,403 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:15:28,615 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:15:30,725 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:15:31,207 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:15:31,419 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:15:39,659 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:15:40,144 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:15:40,362 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:15:41,491 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:15:41,967 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:15:42,179 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:15:50,981 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:15:51,463 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:15:51,682 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:15:54,875 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:15:55,352 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:15:55,563 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:15:58,309 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:15:58,781 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:15:58,992 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:16:02,057 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:16:02,537 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:16:02,746 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:16:03,850 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:16:04,312 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:16:04,525 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:16:05,623 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:16:06,100 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:16:06,309 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:16:10,703 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:16:11,191 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:16:11,397 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:16:15,544 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:16:16,020 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:16:16,228 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:16:22,407 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 93 [2021-02-24 00:16:27,390 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 93 [2021-02-24 00:16:29,155 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:16:29,629 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:16:29,836 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:16:38,697 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:16:39,188 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:16:39,397 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:16:42,819 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:16:43,301 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:16:43,509 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:16:45,555 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:16:46,099 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:16:46,308 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:16:48,837 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:16:49,341 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:16:49,548 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:16:58,629 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:16:59,092 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:16:59,299 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:17:02,010 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:17:02,466 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:17:02,663 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:17:09,350 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:17:09,809 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:17:10,012 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:17:11,380 WARN L202 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 753 DAG size of output: 444 [2021-02-24 00:17:12,443 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:17:12,889 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:17:13,098 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:17:15,530 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:17:16,009 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:17:16,218 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:17:17,298 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:17:17,753 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:17:17,977 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:17:19,014 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:17:19,474 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:17:19,681 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:17:22,281 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:17:22,738 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:17:22,940 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:17:24,019 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:17:24,494 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:17:24,692 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-02-24 00:17:29,435 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2021-02-24 00:17:29,885 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2021-02-24 00:17:30,103 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133