/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/Problem10_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 00:01:41,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:01:41,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:01:41,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 00:01:41,974 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 00:01:42,001 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:01:42,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:01:42,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:01:42,007 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:01:42,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:01:42,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:01:42,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:01:42,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:01:42,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:01:42,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:01:42,011 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:01:42,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:01:42,013 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:01:42,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:01:42,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:01:42,014 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:01:42,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:01:42,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:01:42,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:01:42,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:01:42,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:01:42,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:01:42,015 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:01:42,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:01:42,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:01:42,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:01:42,486 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:01:42,487 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:01:42,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label39.c [2021-02-24 00:01:42,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d9daddcd/dae7a16de2a9423a9ee1a981f103aad1/FLAGcf371dd43 [2021-02-24 00:01:43,399 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:01:43,400 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label39.c [2021-02-24 00:01:43,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d9daddcd/dae7a16de2a9423a9ee1a981f103aad1/FLAGcf371dd43 [2021-02-24 00:01:43,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d9daddcd/dae7a16de2a9423a9ee1a981f103aad1 [2021-02-24 00:01:43,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:01:43,708 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:01:43,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:01:43,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:01:43,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:01:43,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:01:43" (1/1) ... [2021-02-24 00:01:43,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c06d1a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:01:43, skipping insertion in model container [2021-02-24 00:01:43,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:01:43" (1/1) ... [2021-02-24 00:01:43,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:01:43,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:01:44,009 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/Problem10_label39.c[3149,3162] [2021-02-24 00:01:44,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:01:44,242 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:01:44,291 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/Problem10_label39.c[3149,3162] [2021-02-24 00:01:44,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:01:44,495 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:01:44,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:01:44 WrapperNode [2021-02-24 00:01:44,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:01:44,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:01:44,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:01:44,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:01:44,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:01:44" (1/1) ... [2021-02-24 00:01:44,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:01:44" (1/1) ... [2021-02-24 00:01:44,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:01:44" (1/1) ... [2021-02-24 00:01:44,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:01:44" (1/1) ... [2021-02-24 00:01:44,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:01:44" (1/1) ... [2021-02-24 00:01:44,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:01:44" (1/1) ... [2021-02-24 00:01:44,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:01:44" (1/1) ... [2021-02-24 00:01:44,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:01:44,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:01:44,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:01:44,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:01:44,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:01:44" (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 00:01:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:01:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:01:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:01:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-24 00:01:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:01:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-24 00:01:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:01:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:01:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:01:44,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:01:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 00:01:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 00:01:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:01:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:01:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:01:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:01:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:01:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:01:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:01:46,382 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:01:46,383 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 00:01:46,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:01:46 BoogieIcfgContainer [2021-02-24 00:01:46,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:01:46,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:01:46,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:01:46,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:01:46,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:01:43" (1/3) ... [2021-02-24 00:01:46,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c20915d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:01:46, skipping insertion in model container [2021-02-24 00:01:46,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:01:44" (2/3) ... [2021-02-24 00:01:46,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c20915d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:01:46, skipping insertion in model container [2021-02-24 00:01:46,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:01:46" (3/3) ... [2021-02-24 00:01:46,397 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label39.c [2021-02-24 00:01:46,405 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:01:46,410 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 00:01:46,430 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 00:01:46,458 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:01:46,458 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:01:46,459 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:01:46,459 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:01:46,459 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:01:46,459 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:01:46,459 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:01:46,460 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:01:46,487 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states. [2021-02-24 00:01:46,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-24 00:01:46,500 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:01:46,501 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] [2021-02-24 00:01:46,501 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:01:46,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:01:46,509 INFO L82 PathProgramCache]: Analyzing trace with hash -97531003, now seen corresponding path program 1 times [2021-02-24 00:01:46,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:01:46,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258691934] [2021-02-24 00:01:46,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:01:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:01:46,883 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-24 00:01:46,885 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-24 00:01:46,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:46,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:01:46,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:46,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:01:46,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:46,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:01:46,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:01:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:01:47,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:47,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:01:47,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:47,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:01:47,056 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 00:01:47,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258691934] [2021-02-24 00:01:47,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:01:47,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 00:01:47,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453468293] [2021-02-24 00:01:47,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 00:01:47,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:01:47,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 00:01:47,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 00:01:47,099 INFO L87 Difference]: Start difference. First operand 465 states. Second operand 5 states. [2021-02-24 00:01:50,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:01:50,293 INFO L93 Difference]: Finished difference Result 1235 states and 1806 transitions. [2021-02-24 00:01:50,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 00:01:50,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2021-02-24 00:01:50,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:01:50,319 INFO L225 Difference]: With dead ends: 1235 [2021-02-24 00:01:50,319 INFO L226 Difference]: Without dead ends: 715 [2021-02-24 00:01:50,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-24 00:01:50,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2021-02-24 00:01:50,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 703. [2021-02-24 00:01:50,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2021-02-24 00:01:50,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 934 transitions. [2021-02-24 00:01:50,584 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 934 transitions. Word has length 53 [2021-02-24 00:01:50,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:01:50,586 INFO L480 AbstractCegarLoop]: Abstraction has 703 states and 934 transitions. [2021-02-24 00:01:50,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 00:01:50,587 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 934 transitions. [2021-02-24 00:01:50,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-02-24 00:01:50,605 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:01:50,606 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:01:50,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:01:50,607 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:01:50,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:01:50,608 INFO L82 PathProgramCache]: Analyzing trace with hash 619233882, now seen corresponding path program 1 times [2021-02-24 00:01:50,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:01:50,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1429537607] [2021-02-24 00:01:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:01:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:01:50,783 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-24 00:01:50,784 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-24 00:01:50,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:50,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:01:50,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:50,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:01:50,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:01:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:01:50,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:50,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:01:50,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:50,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:01:50,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 00:01:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:01:50,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:50,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:01:50,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:50,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:01:51,059 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:01:51,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1429537607] [2021-02-24 00:01:51,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:01:51,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 00:01:51,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148505742] [2021-02-24 00:01:51,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:01:51,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:01:51,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:01:51,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:01:51,065 INFO L87 Difference]: Start difference. First operand 703 states and 934 transitions. Second operand 8 states. [2021-02-24 00:01:53,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:01:53,716 INFO L93 Difference]: Finished difference Result 1567 states and 2138 transitions. [2021-02-24 00:01:53,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 00:01:53,721 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 136 [2021-02-24 00:01:53,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:01:53,732 INFO L225 Difference]: With dead ends: 1567 [2021-02-24 00:01:53,733 INFO L226 Difference]: Without dead ends: 887 [2021-02-24 00:01:53,738 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-02-24 00:01:53,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2021-02-24 00:01:53,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 861. [2021-02-24 00:01:53,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2021-02-24 00:01:53,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1098 transitions. [2021-02-24 00:01:53,900 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1098 transitions. Word has length 136 [2021-02-24 00:01:53,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:01:53,901 INFO L480 AbstractCegarLoop]: Abstraction has 861 states and 1098 transitions. [2021-02-24 00:01:53,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:01:53,901 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1098 transitions. [2021-02-24 00:01:53,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-02-24 00:01:53,904 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:01:53,905 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:01:53,905 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 00:01:53,905 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:01:53,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:01:53,906 INFO L82 PathProgramCache]: Analyzing trace with hash 514701093, now seen corresponding path program 1 times [2021-02-24 00:01:53,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:01:53,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672865346] [2021-02-24 00:01:53,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:01:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:01:53,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:53,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:01:53,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:53,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:01:53,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:53,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:01:53,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:53,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:01:54,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:01:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:01:54,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:54,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:01:54,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 00:01:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:01:54,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:54,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:01:54,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:54,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:01:54,183 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:01:54,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672865346] [2021-02-24 00:01:54,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:01:54,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-02-24 00:01:54,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478937790] [2021-02-24 00:01:54,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 00:01:54,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:01:54,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 00:01:54,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 00:01:54,186 INFO L87 Difference]: Start difference. First operand 861 states and 1098 transitions. Second operand 5 states. [2021-02-24 00:01:56,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:01:56,586 INFO L93 Difference]: Finished difference Result 2357 states and 3135 transitions. [2021-02-24 00:01:56,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 00:01:56,587 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2021-02-24 00:01:56,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:01:56,604 INFO L225 Difference]: With dead ends: 2357 [2021-02-24 00:01:56,604 INFO L226 Difference]: Without dead ends: 1519 [2021-02-24 00:01:56,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 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 00:01:56,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2021-02-24 00:01:56,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1325. [2021-02-24 00:01:56,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1325 states. [2021-02-24 00:01:56,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1663 transitions. [2021-02-24 00:01:56,887 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1663 transitions. Word has length 142 [2021-02-24 00:01:56,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:01:56,888 INFO L480 AbstractCegarLoop]: Abstraction has 1325 states and 1663 transitions. [2021-02-24 00:01:56,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 00:01:56,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1663 transitions. [2021-02-24 00:01:56,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-02-24 00:01:56,892 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:01:56,892 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:01:56,893 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 00:01:56,896 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:01:56,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:01:56,897 INFO L82 PathProgramCache]: Analyzing trace with hash 55583185, now seen corresponding path program 1 times [2021-02-24 00:01:56,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:01:56,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532496501] [2021-02-24 00:01:56,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:01:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:01:56,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:56,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:01:56,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:56,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:01:56,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:56,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:01:57,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:01:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:01:57,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:57,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:01:57,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:57,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:01:57,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 00:01:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:01:57,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:57,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:01:57,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:01:57,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:01:57,168 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:01:57,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532496501] [2021-02-24 00:01:57,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:01:57,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 00:01:57,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965045385] [2021-02-24 00:01:57,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 00:01:57,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:01:57,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 00:01:57,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-24 00:01:57,171 INFO L87 Difference]: Start difference. First operand 1325 states and 1663 transitions. Second operand 7 states. [2021-02-24 00:01:59,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:01:59,972 INFO L93 Difference]: Finished difference Result 3159 states and 4102 transitions. [2021-02-24 00:01:59,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 00:01:59,973 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2021-02-24 00:01:59,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:01:59,996 INFO L225 Difference]: With dead ends: 3159 [2021-02-24 00:01:59,997 INFO L226 Difference]: Without dead ends: 1857 [2021-02-24 00:02:00,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 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 00:02:00,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2021-02-24 00:02:00,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1495. [2021-02-24 00:02:00,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2021-02-24 00:02:00,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1749 transitions. [2021-02-24 00:02:00,328 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1749 transitions. Word has length 151 [2021-02-24 00:02:00,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:02:00,329 INFO L480 AbstractCegarLoop]: Abstraction has 1495 states and 1749 transitions. [2021-02-24 00:02:00,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 00:02:00,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1749 transitions. [2021-02-24 00:02:00,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-02-24 00:02:00,338 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:02:00,339 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:02:00,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 00:02:00,340 INFO L428 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:02:00,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:02:00,342 INFO L82 PathProgramCache]: Analyzing trace with hash 256082722, now seen corresponding path program 1 times [2021-02-24 00:02:00,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:02:00,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854937019] [2021-02-24 00:02:00,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:02:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:00,469 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-24 00:02:00,470 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-24 00:02:00,489 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-24 00:02:00,497 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-24 00:02:00,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:00,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:00,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:02:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:00,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:00,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:00,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:00,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:00,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:00,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:02:00,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:00,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 00:02:00,617 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-24 00:02:00,620 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-24 00:02:00,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 00:02:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:00,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:00,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:02:00,820 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size [2021-02-24 00:02:00,822 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-02-24 00:02:00,865 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.3 percent of original size [2021-02-24 00:02:00,867 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.3 percent of original size 28 [2021-02-24 00:02:00,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:00,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 00:02:00,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:00,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 00:02:01,176 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:02:01,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854937019] [2021-02-24 00:02:01,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:02:01,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 00:02:01,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933379692] [2021-02-24 00:02:01,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 00:02:01,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:02:01,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 00:02:01,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-02-24 00:02:01,179 INFO L87 Difference]: Start difference. First operand 1495 states and 1749 transitions. Second operand 13 states. [2021-02-24 00:02:01,774 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2021-02-24 00:02:02,018 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-02-24 00:02:02,531 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2021-02-24 00:02:03,439 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2021-02-24 00:02:03,720 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2021-02-24 00:02:03,915 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-02-24 00:02:04,399 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2021-02-24 00:02:04,595 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2021-02-24 00:02:06,902 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-02-24 00:02:07,162 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-02-24 00:02:09,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:02:09,051 INFO L93 Difference]: Finished difference Result 4781 states and 5673 transitions. [2021-02-24 00:02:09,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-24 00:02:09,052 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 180 [2021-02-24 00:02:09,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:02:09,084 INFO L225 Difference]: With dead ends: 4781 [2021-02-24 00:02:09,084 INFO L226 Difference]: Without dead ends: 3309 [2021-02-24 00:02:09,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=304, Invalid=1102, Unknown=0, NotChecked=0, Total=1406 [2021-02-24 00:02:09,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3309 states. [2021-02-24 00:02:09,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3309 to 2614. [2021-02-24 00:02:09,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2614 states. [2021-02-24 00:02:09,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2614 states to 2614 states and 3057 transitions. [2021-02-24 00:02:09,699 INFO L78 Accepts]: Start accepts. Automaton has 2614 states and 3057 transitions. Word has length 180 [2021-02-24 00:02:09,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:02:09,699 INFO L480 AbstractCegarLoop]: Abstraction has 2614 states and 3057 transitions. [2021-02-24 00:02:09,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 00:02:09,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2614 states and 3057 transitions. [2021-02-24 00:02:09,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-24 00:02:09,705 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:02:09,705 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-02-24 00:02:09,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 00:02:09,706 INFO L428 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:02:09,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:02:09,707 INFO L82 PathProgramCache]: Analyzing trace with hash -807382779, now seen corresponding path program 1 times [2021-02-24 00:02:09,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:02:09,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436670463] [2021-02-24 00:02:09,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:02:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:09,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:09,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:09,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:09,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:09,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:09,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:09,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:09,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:09,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:02:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:09,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:09,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:09,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 00:02:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:09,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:09,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:09,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:02:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:09,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:09,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:09,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:09,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:10,035 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-02-24 00:02:10,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436670463] [2021-02-24 00:02:10,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:02:10,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-02-24 00:02:10,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084206014] [2021-02-24 00:02:10,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 00:02:10,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:02:10,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 00:02:10,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 00:02:10,038 INFO L87 Difference]: Start difference. First operand 2614 states and 3057 transitions. Second operand 5 states. [2021-02-24 00:02:12,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:02:12,988 INFO L93 Difference]: Finished difference Result 6219 states and 7386 transitions. [2021-02-24 00:02:12,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 00:02:12,989 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 254 [2021-02-24 00:02:12,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:02:13,019 INFO L225 Difference]: With dead ends: 6219 [2021-02-24 00:02:13,019 INFO L226 Difference]: Without dead ends: 3628 [2021-02-24 00:02:13,028 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 00:02:13,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3628 states. [2021-02-24 00:02:13,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3628 to 3275. [2021-02-24 00:02:13,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3275 states. [2021-02-24 00:02:13,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 3880 transitions. [2021-02-24 00:02:13,678 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 3880 transitions. Word has length 254 [2021-02-24 00:02:13,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:02:13,684 INFO L480 AbstractCegarLoop]: Abstraction has 3275 states and 3880 transitions. [2021-02-24 00:02:13,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 00:02:13,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 3880 transitions. [2021-02-24 00:02:13,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-02-24 00:02:13,691 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:02:13,694 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:02:13,694 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 00:02:13,694 INFO L428 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:02:13,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:02:13,696 INFO L82 PathProgramCache]: Analyzing trace with hash -867577180, now seen corresponding path program 1 times [2021-02-24 00:02:13,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:02:13,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682664581] [2021-02-24 00:02:13,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:02:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:13,805 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-24 00:02:13,806 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-24 00:02:13,813 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-24 00:02:13,814 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-24 00:02:13,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:13,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:13,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:02:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:13,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:13,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:13,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:13,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:13,899 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-24 00:02:13,900 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-24 00:02:13,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 00:02:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:13,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:13,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:13,972 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-24 00:02:13,978 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-24 00:02:13,994 WARN L141 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-02-24 00:02:13,996 WARN L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-02-24 00:02:14,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-02-24 00:02:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:14,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:14,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:14,145 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.3 percent of original size [2021-02-24 00:02:14,146 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.3 percent of original size 28 [2021-02-24 00:02:14,179 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-24 00:02:14,180 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-24 00:02:14,589 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-24 00:02:14,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682664581] [2021-02-24 00:02:14,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:02:14,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-24 00:02:14,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591173818] [2021-02-24 00:02:14,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-24 00:02:14,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:02:14,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-24 00:02:14,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-02-24 00:02:14,594 INFO L87 Difference]: Start difference. First operand 3275 states and 3880 transitions. Second operand 11 states. [2021-02-24 00:02:15,164 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-02-24 00:02:15,609 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-02-24 00:02:16,572 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2021-02-24 00:02:17,889 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2021-02-24 00:02:18,467 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-02-24 00:02:20,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:02:20,271 INFO L93 Difference]: Finished difference Result 8257 states and 10011 transitions. [2021-02-24 00:02:20,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-02-24 00:02:20,274 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 259 [2021-02-24 00:02:20,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:02:20,314 INFO L225 Difference]: With dead ends: 8257 [2021-02-24 00:02:20,314 INFO L226 Difference]: Without dead ends: 5005 [2021-02-24 00:02:20,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2021-02-24 00:02:20,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5005 states. [2021-02-24 00:02:21,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5005 to 3751. [2021-02-24 00:02:21,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3751 states. [2021-02-24 00:02:21,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3751 states to 3751 states and 4393 transitions. [2021-02-24 00:02:21,213 INFO L78 Accepts]: Start accepts. Automaton has 3751 states and 4393 transitions. Word has length 259 [2021-02-24 00:02:21,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:02:21,213 INFO L480 AbstractCegarLoop]: Abstraction has 3751 states and 4393 transitions. [2021-02-24 00:02:21,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-24 00:02:21,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3751 states and 4393 transitions. [2021-02-24 00:02:21,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-02-24 00:02:21,220 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:02:21,220 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 00:02:21,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 00:02:21,221 INFO L428 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:02:21,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:02:21,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1495507842, now seen corresponding path program 1 times [2021-02-24 00:02:21,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:02:21,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209836416] [2021-02-24 00:02:21,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:02:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:21,296 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-24 00:02:21,297 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-24 00:02:21,303 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-24 00:02:21,304 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-24 00:02:21,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:21,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:21,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:02:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:21,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:21,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:21,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:21,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:21,397 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-24 00:02:21,397 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-24 00:02:21,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 00:02:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:21,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:21,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:21,446 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-24 00:02:21,447 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-24 00:02:21,448 WARN L141 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-02-24 00:02:21,449 WARN L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-02-24 00:02:21,463 WARN L141 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-02-24 00:02:21,464 WARN L147 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size 13 [2021-02-24 00:02:21,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-24 00:02:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:21,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:21,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:21,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:21,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:21,666 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 140 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-24 00:02:21,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209836416] [2021-02-24 00:02:21,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:02:21,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-24 00:02:21,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328285958] [2021-02-24 00:02:21,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 00:02:21,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:02:21,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 00:02:21,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:02:21,669 INFO L87 Difference]: Start difference. First operand 3751 states and 4393 transitions. Second operand 10 states. [2021-02-24 00:02:27,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:02:27,413 INFO L93 Difference]: Finished difference Result 8895 states and 10538 transitions. [2021-02-24 00:02:27,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-24 00:02:27,413 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 269 [2021-02-24 00:02:27,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:02:27,447 INFO L225 Difference]: With dead ends: 8895 [2021-02-24 00:02:27,447 INFO L226 Difference]: Without dead ends: 4855 [2021-02-24 00:02:27,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2021-02-24 00:02:27,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2021-02-24 00:02:28,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 3741. [2021-02-24 00:02:28,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3741 states. [2021-02-24 00:02:28,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 4362 transitions. [2021-02-24 00:02:28,239 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 4362 transitions. Word has length 269 [2021-02-24 00:02:28,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:02:28,239 INFO L480 AbstractCegarLoop]: Abstraction has 3741 states and 4362 transitions. [2021-02-24 00:02:28,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 00:02:28,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 4362 transitions. [2021-02-24 00:02:28,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-02-24 00:02:28,247 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:02:28,248 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-02-24 00:02:28,248 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 00:02:28,248 INFO L428 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:02:28,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:02:28,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1587974957, now seen corresponding path program 1 times [2021-02-24 00:02:28,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:02:28,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418660732] [2021-02-24 00:02:28,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:02:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:28,354 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-24 00:02:28,356 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-24 00:02:28,364 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-24 00:02:28,365 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-24 00:02:28,366 WARN L141 QuantifierPusher]: treesize reduction 2, result has 88.9 percent of original size [2021-02-24 00:02:28,367 WARN L147 QuantifierPusher]: treesize reduction 2, result has 88.9 percent of original size 16 [2021-02-24 00:02:28,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:28,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:28,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:28,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:28,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:28,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:28,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:02:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:28,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:28,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:28,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:28,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:28,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:28,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:02:28,478 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-24 00:02:28,479 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-24 00:02:28,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 00:02:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:28,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:28,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:28,558 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-24 00:02:28,559 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-24 00:02:28,576 WARN L141 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-02-24 00:02:28,576 WARN L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-02-24 00:02:28,596 WARN L141 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-02-24 00:02:28,597 WARN L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20 [2021-02-24 00:02:28,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-24 00:02:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:28,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:28,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:02:28,728 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.3 percent of original size [2021-02-24 00:02:28,729 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.3 percent of original size 28 [2021-02-24 00:02:28,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:28,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 00:02:28,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:28,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 00:02:29,128 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 115 proven. 63 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-24 00:02:29,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418660732] [2021-02-24 00:02:29,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:02:29,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-02-24 00:02:29,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753983354] [2021-02-24 00:02:29,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-24 00:02:29,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:02:29,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-24 00:02:29,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-02-24 00:02:29,130 INFO L87 Difference]: Start difference. First operand 3741 states and 4362 transitions. Second operand 17 states. [2021-02-24 00:02:30,247 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2021-02-24 00:02:31,775 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-02-24 00:02:33,415 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2021-02-24 00:02:34,229 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2021-02-24 00:02:34,422 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2021-02-24 00:02:34,853 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2021-02-24 00:02:37,100 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2021-02-24 00:02:39,350 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2021-02-24 00:02:39,855 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-02-24 00:02:40,306 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-02-24 00:02:41,796 WARN L202 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2021-02-24 00:02:43,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:02:43,108 INFO L93 Difference]: Finished difference Result 10544 states and 12599 transitions. [2021-02-24 00:02:43,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-24 00:02:43,109 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 304 [2021-02-24 00:02:43,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:02:43,151 INFO L225 Difference]: With dead ends: 10544 [2021-02-24 00:02:43,151 INFO L226 Difference]: Without dead ends: 6826 [2021-02-24 00:02:43,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=634, Invalid=2558, Unknown=0, NotChecked=0, Total=3192 [2021-02-24 00:02:43,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6826 states. [2021-02-24 00:02:44,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6826 to 5350. [2021-02-24 00:02:44,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5350 states. [2021-02-24 00:02:44,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5350 states to 5350 states and 6264 transitions. [2021-02-24 00:02:44,405 INFO L78 Accepts]: Start accepts. Automaton has 5350 states and 6264 transitions. Word has length 304 [2021-02-24 00:02:44,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:02:44,406 INFO L480 AbstractCegarLoop]: Abstraction has 5350 states and 6264 transitions. [2021-02-24 00:02:44,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-24 00:02:44,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5350 states and 6264 transitions. [2021-02-24 00:02:44,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-02-24 00:02:44,417 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:02:44,418 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-02-24 00:02:44,418 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 00:02:44,418 INFO L428 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:02:44,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:02:44,419 INFO L82 PathProgramCache]: Analyzing trace with hash -558181258, now seen corresponding path program 1 times [2021-02-24 00:02:44,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:02:44,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503176344] [2021-02-24 00:02:44,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:02:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:44,547 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-24 00:02:44,549 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-24 00:02:44,557 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-24 00:02:44,558 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-24 00:02:44,570 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-24 00:02:44,570 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-24 00:02:44,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:44,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 00:02:44,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:44,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:44,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:02:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:44,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:44,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:44,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:44,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:44,652 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-24 00:02:44,653 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-24 00:02:44,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 00:02:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:44,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:44,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:44,713 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-24 00:02:44,713 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-24 00:02:44,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-24 00:02:44,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:44,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:44,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:44,784 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-24 00:02:44,784 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-24 00:02:44,785 WARN L141 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-02-24 00:02:44,786 WARN L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-02-24 00:02:44,799 WARN L141 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-02-24 00:02:44,800 WARN L147 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size 13 [2021-02-24 00:02:44,982 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-02-24 00:02:44,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503176344] [2021-02-24 00:02:44,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:02:44,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-02-24 00:02:44,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771887898] [2021-02-24 00:02:44,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 00:02:44,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:02:44,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 00:02:44,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-02-24 00:02:44,984 INFO L87 Difference]: Start difference. First operand 5350 states and 6264 transitions. Second operand 9 states. [2021-02-24 00:02:51,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:02:51,616 INFO L93 Difference]: Finished difference Result 13973 states and 17068 transitions. [2021-02-24 00:02:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-24 00:02:51,617 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 328 [2021-02-24 00:02:51,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:02:51,731 INFO L225 Difference]: With dead ends: 13973 [2021-02-24 00:02:51,731 INFO L226 Difference]: Without dead ends: 8166 [2021-02-24 00:02:51,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-02-24 00:02:51,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8166 states. [2021-02-24 00:02:53,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8166 to 6570. [2021-02-24 00:02:53,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6570 states. [2021-02-24 00:02:53,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6570 states to 6570 states and 7698 transitions. [2021-02-24 00:02:53,648 INFO L78 Accepts]: Start accepts. Automaton has 6570 states and 7698 transitions. Word has length 328 [2021-02-24 00:02:53,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:02:53,649 INFO L480 AbstractCegarLoop]: Abstraction has 6570 states and 7698 transitions. [2021-02-24 00:02:53,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 00:02:53,649 INFO L276 IsEmpty]: Start isEmpty. Operand 6570 states and 7698 transitions. [2021-02-24 00:02:53,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-02-24 00:02:53,658 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:02:53,658 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-02-24 00:02:53,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 00:02:53,659 INFO L428 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:02:53,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:02:53,659 INFO L82 PathProgramCache]: Analyzing trace with hash 624412846, now seen corresponding path program 1 times [2021-02-24 00:02:53,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:02:53,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873199440] [2021-02-24 00:02:53,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:02:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:53,754 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-24 00:02:53,755 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-24 00:02:53,761 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-24 00:02:53,761 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-24 00:02:53,771 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-24 00:02:53,771 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-24 00:02:53,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:53,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 00:02:53,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:53,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:53,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:02:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:53,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:53,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:53,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:53,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:02:53,843 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-24 00:02:53,844 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-24 00:02:53,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 00:02:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:53,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:53,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:53,900 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-24 00:02:53,900 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-24 00:02:53,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-02-24 00:02:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:02:53,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:02:53,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:02:53,954 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-24 00:02:53,955 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-24 00:02:53,955 WARN L141 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-02-24 00:02:53,956 WARN L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-02-24 00:02:53,969 WARN L141 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-02-24 00:02:53,970 WARN L147 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size 13 [2021-02-24 00:02:54,108 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-02-24 00:02:54,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873199440] [2021-02-24 00:02:54,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:02:54,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-02-24 00:02:54,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470492732] [2021-02-24 00:02:54,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 00:02:54,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:02:54,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 00:02:54,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-02-24 00:02:54,111 INFO L87 Difference]: Start difference. First operand 6570 states and 7698 transitions. Second operand 9 states. [2021-02-24 00:03:01,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:03:01,167 INFO L93 Difference]: Finished difference Result 15033 states and 18007 transitions. [2021-02-24 00:03:01,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-24 00:03:01,168 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 345 [2021-02-24 00:03:01,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:03:01,183 INFO L225 Difference]: With dead ends: 15033 [2021-02-24 00:03:01,184 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 00:03:01,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-02-24 00:03:01,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 00:03:01,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 00:03:01,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 00:03:01,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 00:03:01,221 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 345 [2021-02-24 00:03:01,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:03:01,221 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 00:03:01,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 00:03:01,221 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 00:03:01,221 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 00:03:01,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-24 00:03:01,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 00:03:02,536 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 100 [2021-02-24 00:03:03,507 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 123 [2021-02-24 00:03:03,701 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 130 [2021-02-24 00:03:05,322 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 100 [2021-02-24 00:03:05,518 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 112 [2021-02-24 00:03:49,247 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 295 [2021-02-24 00:03:49,802 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 294 [2021-02-24 00:03:52,626 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 294 [2021-02-24 00:03:53,047 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 294 [2021-02-24 00:03:58,615 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 295 [2021-02-24 00:04:18,465 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 295 [2021-02-24 00:04:18,826 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 295 [2021-02-24 00:04:19,198 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 295 [2021-02-24 00:04:28,128 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 295 [2021-02-24 00:04:40,327 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 295 [2021-02-24 00:05:18,116 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 233 [2021-02-24 00:05:18,247 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 188 [2021-02-24 00:05:18,649 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 159 [2021-02-24 00:05:18,859 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 222 [2021-02-24 00:05:19,081 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 226 [2021-02-24 00:05:19,208 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 202 [2021-02-24 00:05:19,381 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 202 [2021-02-24 00:05:19,712 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 187 [2021-02-24 00:05:20,024 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 194 [2021-02-24 00:05:20,431 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 164 [2021-02-24 00:05:20,637 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2021-02-24 00:05:20,864 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 186 [2021-02-24 00:05:21,532 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 202 [2021-02-24 00:05:22,341 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 187 [2021-02-24 00:05:23,283 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 233 [2021-02-24 00:05:23,410 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 188 [2021-02-24 00:05:23,815 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 159 [2021-02-24 00:05:24,019 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 222 [2021-02-24 00:05:24,237 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 226 [2021-02-24 00:05:24,359 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 202 [2021-02-24 00:05:24,528 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 202 [2021-02-24 00:05:24,853 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 187 [2021-02-24 00:05:25,175 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 194 [2021-02-24 00:05:25,570 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 164 [2021-02-24 00:05:25,768 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2021-02-24 00:05:26,001 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 186 [2021-02-24 00:05:26,675 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 202 [2021-02-24 00:05:27,240 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 166 [2021-02-24 00:05:27,480 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 187 [2021-02-24 00:06:18,309 WARN L202 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:06:23,092 WARN L202 SmtUtils]: Spent 4.75 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:06:24,493 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 264 DAG size of output: 56 [2021-02-24 00:06:29,282 WARN L202 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:06:34,100 WARN L202 SmtUtils]: Spent 4.80 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:06:35,308 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 255 DAG size of output: 60 [2021-02-24 00:06:36,765 WARN L202 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 254 DAG size of output: 59 [2021-02-24 00:06:38,243 WARN L202 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 261 DAG size of output: 65 [2021-02-24 00:06:39,866 WARN L202 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 294 DAG size of output: 57 [2021-02-24 00:06:44,693 WARN L202 SmtUtils]: Spent 4.81 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:06:46,620 WARN L202 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 305 DAG size of output: 61 [2021-02-24 00:06:48,302 WARN L202 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 294 DAG size of output: 59 [2021-02-24 00:06:49,613 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 267 DAG size of output: 61 [2021-02-24 00:06:54,177 WARN L202 SmtUtils]: Spent 4.55 s on a formula simplification. DAG size of input: 597 DAG size of output: 68 [2021-02-24 00:06:55,443 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 269 DAG size of output: 60 [2021-02-24 00:06:56,649 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 255 DAG size of output: 60 [2021-02-24 00:06:58,298 WARN L202 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 275 DAG size of output: 75 [2021-02-24 00:07:02,870 WARN L202 SmtUtils]: Spent 4.56 s on a formula simplification. DAG size of input: 597 DAG size of output: 68 [2021-02-24 00:07:07,450 WARN L202 SmtUtils]: Spent 4.57 s on a formula simplification. DAG size of input: 597 DAG size of output: 68 [2021-02-24 00:07:12,343 WARN L202 SmtUtils]: Spent 4.88 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:07:13,857 WARN L202 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 274 DAG size of output: 62 [2021-02-24 00:07:18,770 WARN L202 SmtUtils]: Spent 4.89 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:07:20,152 WARN L202 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 260 DAG size of output: 57 [2021-02-24 00:07:21,628 WARN L202 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 265 DAG size of output: 61 [2021-02-24 00:07:23,061 WARN L202 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 270 DAG size of output: 60 [2021-02-24 00:07:24,391 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 299 DAG size of output: 62 [2021-02-24 00:07:29,314 WARN L202 SmtUtils]: Spent 4.91 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:07:30,808 WARN L202 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 262 DAG size of output: 60 [2021-02-24 00:07:32,125 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 264 DAG size of output: 56 [2021-02-24 00:07:33,377 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 276 DAG size of output: 61 [2021-02-24 00:07:34,699 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:07:37,544 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:07:38,862 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:07:41,704 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:07:44,550 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:07:47,389 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:07:48,702 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:07:50,022 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:07:52,707 WARN L202 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 439 DAG size of output: 55 [2021-02-24 00:07:55,557 WARN L202 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:07:56,887 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:07:58,251 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:08:01,147 WARN L202 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:08:02,430 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 276 DAG size of output: 61 [2021-02-24 00:08:05,290 WARN L202 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:08:08,160 WARN L202 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:08:11,016 WARN L202 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:08:12,287 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 276 DAG size of output: 61 [2021-02-24 00:08:15,028 WARN L202 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 439 DAG size of output: 55 [2021-02-24 00:08:16,396 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 258 DAG size of output: 53 [2021-02-24 00:08:21,392 WARN L202 SmtUtils]: Spent 4.97 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:08:26,367 WARN L202 SmtUtils]: Spent 4.96 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:08:27,845 WARN L202 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 291 DAG size of output: 60 [2021-02-24 00:08:29,681 WARN L202 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 298 DAG size of output: 68 [2021-02-24 00:08:32,026 WARN L202 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 315 DAG size of output: 64 [2021-02-24 00:08:34,079 WARN L202 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 317 DAG size of output: 72 [2021-02-24 00:08:35,894 WARN L202 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 292 DAG size of output: 60 [2021-02-24 00:08:37,062 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 270 DAG size of output: 58 [2021-02-24 00:08:42,080 WARN L202 SmtUtils]: Spent 5.00 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:08:47,109 WARN L202 SmtUtils]: Spent 5.01 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:08:48,324 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 266 DAG size of output: 66 [2021-02-24 00:08:53,354 WARN L202 SmtUtils]: Spent 5.01 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:08:54,668 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 266 DAG size of output: 62 [2021-02-24 00:08:56,157 WARN L202 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 262 DAG size of output: 71 [2021-02-24 00:08:57,562 WARN L202 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 254 DAG size of output: 56 [2021-02-24 00:08:58,932 WARN L202 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 298 DAG size of output: 55 [2021-02-24 00:09:00,280 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:09:01,779 WARN L202 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 291 DAG size of output: 60 [2021-02-24 00:09:03,942 WARN L202 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 317 DAG size of output: 72 [2021-02-24 00:09:05,367 WARN L202 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 259 DAG size of output: 61 [2021-02-24 00:09:10,141 WARN L202 SmtUtils]: Spent 4.76 s on a formula simplification. DAG size of input: 597 DAG size of output: 68 [2021-02-24 00:09:11,572 WARN L202 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 254 DAG size of output: 59 [2021-02-24 00:09:12,997 WARN L202 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 294 DAG size of output: 60 [2021-02-24 00:09:17,793 WARN L202 SmtUtils]: Spent 4.78 s on a formula simplification. DAG size of input: 597 DAG size of output: 68 [2021-02-24 00:09:19,094 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 258 DAG size of output: 59 [2021-02-24 00:09:20,374 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 300 DAG size of output: 56 [2021-02-24 00:09:22,169 WARN L202 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 268 DAG size of output: 59 [2021-02-24 00:09:23,973 WARN L202 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 294 DAG size of output: 59 [2021-02-24 00:09:25,115 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 250 DAG size of output: 56 [2021-02-24 00:09:26,672 WARN L202 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 259 DAG size of output: 60 [2021-02-24 00:09:29,269 WARN L202 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 298 DAG size of output: 65 [2021-02-24 00:09:30,736 WARN L202 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 267 DAG size of output: 60 [2021-02-24 00:09:32,053 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 258 DAG size of output: 64 [2021-02-24 00:09:37,190 WARN L202 SmtUtils]: Spent 5.12 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:09:39,479 WARN L202 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 272 DAG size of output: 64 [2021-02-24 00:09:41,526 WARN L202 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 300 DAG size of output: 55 [2021-02-24 00:09:42,963 WARN L202 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 267 DAG size of output: 64 [2021-02-24 00:09:44,628 WARN L202 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 271 DAG size of output: 74 [2021-02-24 00:09:45,882 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 289 DAG size of output: 60 [2021-02-24 00:09:51,028 WARN L202 SmtUtils]: Spent 5.13 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:09:56,168 WARN L202 SmtUtils]: Spent 5.13 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:10:01,380 WARN L202 SmtUtils]: Spent 5.20 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:10:02,785 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:10:04,223 WARN L202 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:10:05,651 WARN L202 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 290 DAG size of output: 59 [2021-02-24 00:10:07,215 WARN L202 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 273 DAG size of output: 62 [2021-02-24 00:10:09,022 WARN L202 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 281 DAG size of output: 47 [2021-02-24 00:10:10,310 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 255 DAG size of output: 58 [2021-02-24 00:10:12,213 WARN L202 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 292 DAG size of output: 60 [2021-02-24 00:10:13,560 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 256 DAG size of output: 65 [2021-02-24 00:10:15,227 WARN L202 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 280 DAG size of output: 47 [2021-02-24 00:10:20,492 WARN L202 SmtUtils]: Spent 5.25 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:10:25,770 WARN L202 SmtUtils]: Spent 5.26 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:10:27,449 WARN L202 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 280 DAG size of output: 47 [2021-02-24 00:10:29,194 WARN L202 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 265 DAG size of output: 72 [2021-02-24 00:10:30,878 WARN L202 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 280 DAG size of output: 47 [2021-02-24 00:10:36,203 WARN L202 SmtUtils]: Spent 5.31 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:10:37,921 WARN L202 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 254 DAG size of output: 62 [2021-02-24 00:10:43,255 WARN L202 SmtUtils]: Spent 5.32 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:10:45,057 WARN L202 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 300 DAG size of output: 53 [2021-02-24 00:10:50,389 WARN L202 SmtUtils]: Spent 5.32 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:10:51,585 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 250 DAG size of output: 56 [2021-02-24 00:10:53,026 WARN L202 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:10:54,486 WARN L202 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:10:57,626 WARN L202 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:10:59,079 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:11:00,946 WARN L202 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 281 DAG size of output: 47 [2021-02-24 00:11:02,694 WARN L202 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 272 DAG size of output: 64 [2021-02-24 00:11:04,447 WARN L202 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 249 DAG size of output: 60 [2021-02-24 00:11:06,134 WARN L202 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 263 DAG size of output: 67 [2021-02-24 00:11:07,842 WARN L202 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 261 DAG size of output: 65 [2021-02-24 00:11:09,335 WARN L202 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 257 DAG size of output: 57 [2021-02-24 00:11:14,734 WARN L202 SmtUtils]: Spent 5.38 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:11:16,516 WARN L202 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 254 DAG size of output: 62 [2021-02-24 00:11:17,889 WARN L202 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 264 DAG size of output: 60 [2021-02-24 00:11:19,372 WARN L202 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:11:22,385 WARN L202 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 439 DAG size of output: 55 [2021-02-24 00:11:23,812 WARN L202 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 276 DAG size of output: 61 [2021-02-24 00:11:27,007 WARN L202 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:11:30,200 WARN L202 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:11:33,430 WARN L202 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:11:34,915 WARN L202 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:11:37,277 WARN L202 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 293 DAG size of output: 57 [2021-02-24 00:11:39,095 WARN L202 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 294 DAG size of output: 59 [2021-02-24 00:11:44,630 WARN L202 SmtUtils]: Spent 5.52 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:11:50,195 WARN L202 SmtUtils]: Spent 5.55 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:11:51,967 WARN L202 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 272 DAG size of output: 68 [2021-02-24 00:11:53,248 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 254 DAG size of output: 54 [2021-02-24 00:11:58,845 WARN L202 SmtUtils]: Spent 5.58 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:12:04,462 WARN L202 SmtUtils]: Spent 5.60 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:12:10,123 WARN L202 SmtUtils]: Spent 5.65 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:12:15,810 WARN L202 SmtUtils]: Spent 5.67 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:12:18,177 WARN L202 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 317 DAG size of output: 72 [2021-02-24 00:12:19,513 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 263 DAG size of output: 54 [2021-02-24 00:12:21,234 WARN L202 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 273 DAG size of output: 62 [2021-02-24 00:12:22,546 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 249 DAG size of output: 56 [2021-02-24 00:12:24,192 WARN L202 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 254 DAG size of output: 61 [2021-02-24 00:12:25,712 WARN L202 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 290 DAG size of output: 59 [2021-02-24 00:12:27,389 WARN L202 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 261 DAG size of output: 59 [2021-02-24 00:12:29,264 WARN L202 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 299 DAG size of output: 53 [2021-02-24 00:12:31,392 WARN L202 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 291 DAG size of output: 56 [2021-02-24 00:12:32,831 WARN L202 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 264 DAG size of output: 60 [2021-02-24 00:12:34,254 WARN L202 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 289 DAG size of output: 60 [2021-02-24 00:12:36,063 WARN L202 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 264 DAG size of output: 68 [2021-02-24 00:12:37,645 WARN L202 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 264 DAG size of output: 62 [2021-02-24 00:12:38,969 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 256 DAG size of output: 62 [2021-02-24 00:12:40,188 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 254 DAG size of output: 54 [2021-02-24 00:12:41,882 WARN L202 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 257 DAG size of output: 63 [2021-02-24 00:12:43,671 WARN L202 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 260 DAG size of output: 60 [2021-02-24 00:12:46,068 WARN L202 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 300 DAG size of output: 55 [2021-02-24 00:12:47,999 WARN L202 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 261 DAG size of output: 59 [2021-02-24 00:12:49,869 WARN L202 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 268 DAG size of output: 71 [2021-02-24 00:12:52,339 WARN L202 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 263 DAG size of output: 75 [2021-02-24 00:12:54,830 WARN L202 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 305 DAG size of output: 61 [2021-02-24 00:12:57,210 WARN L202 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 300 DAG size of output: 55 [2021-02-24 00:12:58,891 WARN L202 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 254 DAG size of output: 61 [2021-02-24 00:13:05,347 WARN L202 SmtUtils]: Spent 6.44 s on a formula simplification. DAG size of input: 586 DAG size of output: 77 [2021-02-24 00:13:07,937 WARN L202 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 293 DAG size of output: 57 [2021-02-24 00:13:13,906 WARN L202 SmtUtils]: Spent 5.95 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:13:16,483 WARN L202 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 293 DAG size of output: 57 [2021-02-24 00:13:22,380 WARN L202 SmtUtils]: Spent 5.88 s on a formula simplification. DAG size of input: 616 DAG size of output: 77 [2021-02-24 00:13:24,103 WARN L202 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 267 DAG size of output: 60 [2021-02-24 00:13:26,530 WARN L202 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 300 DAG size of output: 55 [2021-02-24 00:13:28,246 WARN L202 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 254 DAG size of output: 61 [2021-02-24 00:13:30,326 WARN L202 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 281 DAG size of output: 47 [2021-02-24 00:13:32,372 WARN L202 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 281 DAG size of output: 47 [2021-02-24 00:13:34,437 WARN L202 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 281 DAG size of output: 47 [2021-02-24 00:13:35,658 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 237 DAG size of output: 44 [2021-02-24 00:13:39,203 WARN L202 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:13:40,830 WARN L202 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:13:42,464 WARN L202 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:13:44,119 WARN L202 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:13:47,694 WARN L202 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:13:49,799 WARN L202 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 251 DAG size of output: 64 [2021-02-24 00:13:55,435 WARN L202 SmtUtils]: Spent 5.62 s on a formula simplification. DAG size of input: 597 DAG size of output: 68 [2021-02-24 00:14:01,105 WARN L202 SmtUtils]: Spent 5.65 s on a formula simplification. DAG size of input: 597 DAG size of output: 68 [2021-02-24 00:14:04,547 WARN L202 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 439 DAG size of output: 55 [2021-02-24 00:14:06,187 WARN L202 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:14:07,436 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 237 DAG size of output: 44 [2021-02-24 00:14:11,007 WARN L202 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:14:12,252 WARN L202 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 237 DAG size of output: 44 [2021-02-24 00:14:15,861 WARN L202 SmtUtils]: Spent 3.60 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:14:19,466 WARN L202 SmtUtils]: Spent 3.59 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:14:21,170 WARN L202 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:14:24,789 WARN L202 SmtUtils]: Spent 3.61 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:14:26,900 WARN L202 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 281 DAG size of output: 47 [2021-02-24 00:14:30,605 WARN L202 SmtUtils]: Spent 3.69 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:14:34,244 WARN L202 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:14:35,868 WARN L202 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 276 DAG size of output: 61 [2021-02-24 00:14:37,579 WARN L202 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:14:39,233 WARN L202 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:14:41,783 WARN L202 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 317 DAG size of output: 63 [2021-02-24 00:14:44,363 WARN L202 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 305 DAG size of output: 61 [2021-02-24 00:14:50,186 WARN L202 SmtUtils]: Spent 5.81 s on a formula simplification. DAG size of input: 597 DAG size of output: 68 [2021-02-24 00:14:53,730 WARN L202 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 439 DAG size of output: 55 [2021-02-24 00:14:55,380 WARN L202 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 276 DAG size of output: 61 [2021-02-24 00:14:57,101 WARN L202 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 278 DAG size of output: 52 [2021-02-24 00:15:00,750 WARN L202 SmtUtils]: Spent 3.64 s on a formula simplification. DAG size of input: 436 DAG size of output: 56 [2021-02-24 00:15:02,331 WARN L202 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 255 DAG size of output: 62 [2021-02-24 00:15:03,830 WARN L202 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 250 DAG size of output: 56 [2021-02-24 00:15:05,498 WARN L202 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 255 DAG size of output: 60