/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:12:49,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:12:49,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:12:49,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 01:12:49,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:12:49,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:12:49,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:12:49,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:12:49,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:12:49,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:12:49,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:12:49,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:12:49,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:12:49,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:12:49,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:12:49,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:12:49,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 01:12:49,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 01:12:49,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 01:12:49,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 01:12:49,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 01:12:49,759 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:12:49,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:12:49,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:12:49,761 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:12:49,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:12:49,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:12:49,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:12:49,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:12:49,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:12:49,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:12:49,763 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:12:49,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:12:49,763 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:12:49,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:12:49,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:12:49,764 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:12:49,764 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:12:49,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:12:49,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:12:49,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:12:49,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:12:49,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:12:49,766 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:12:50,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:12:50,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:12:50,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:12:50,251 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:12:50,252 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:12:50,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-10-24 01:12:50,340 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c506ceb93/b66bae7b62c2468999f1af1d11ef2764/FLAG4e4909300 [2020-10-24 01:12:51,094 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:12:51,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-10-24 01:12:51,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c506ceb93/b66bae7b62c2468999f1af1d11ef2764/FLAG4e4909300 [2020-10-24 01:12:51,367 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c506ceb93/b66bae7b62c2468999f1af1d11ef2764 [2020-10-24 01:12:51,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:12:51,381 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:12:51,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:12:51,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:12:51,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:12:51,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:12:51" (1/1) ... [2020-10-24 01:12:51,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e5ceff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:51, skipping insertion in model container [2020-10-24 01:12:51,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:12:51" (1/1) ... [2020-10-24 01:12:51,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:12:51,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:12:51,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:12:51,947 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:12:52,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:12:52,083 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:12:52,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:52 WrapperNode [2020-10-24 01:12:52,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:12:52,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:12:52,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:12:52,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:12:52,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:52" (1/1) ... [2020-10-24 01:12:52,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:52" (1/1) ... [2020-10-24 01:12:52,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:52" (1/1) ... [2020-10-24 01:12:52,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:52" (1/1) ... [2020-10-24 01:12:52,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:52" (1/1) ... [2020-10-24 01:12:52,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:52" (1/1) ... [2020-10-24 01:12:52,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:52" (1/1) ... [2020-10-24 01:12:52,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:12:52,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:12:52,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:12:52,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:12:52,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:12:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:12:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:12:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:12:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-24 01:12:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:12:52,345 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-24 01:12:52,346 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:12:52,346 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:12:52,346 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:12:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:12:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 01:12:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-24 01:12:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:12:52,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:12:52,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:12:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:12:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:12:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:12:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:12:53,902 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:12:53,903 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-24 01:12:53,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:12:53 BoogieIcfgContainer [2020-10-24 01:12:53,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:12:53,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:12:53,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:12:53,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:12:53,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:12:51" (1/3) ... [2020-10-24 01:12:53,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b714214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:12:53, skipping insertion in model container [2020-10-24 01:12:53,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:12:52" (2/3) ... [2020-10-24 01:12:53,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b714214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:12:53, skipping insertion in model container [2020-10-24 01:12:53,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:12:53" (3/3) ... [2020-10-24 01:12:53,917 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label26.c [2020-10-24 01:12:53,929 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:12:53,934 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:12:53,950 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:12:53,977 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:12:53,977 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:12:53,977 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:12:53,978 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:12:53,978 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:12:53,978 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:12:53,978 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:12:53,978 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:12:54,012 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states. [2020-10-24 01:12:54,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-24 01:12:54,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:12:54,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:12:54,045 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:12:54,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:12:54,051 INFO L82 PathProgramCache]: Analyzing trace with hash 183094496, now seen corresponding path program 1 times [2020-10-24 01:12:54,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:12:54,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850790327] [2020-10-24 01:12:54,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:12:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:12:54,807 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-24 01:12:54,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:12:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:12:54,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:12:54,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [850790327] [2020-10-24 01:12:54,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:12:54,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-24 01:12:54,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269967811] [2020-10-24 01:12:54,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 01:12:54,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:12:54,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 01:12:54,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:12:54,997 INFO L87 Difference]: Start difference. First operand 537 states. Second operand 5 states. [2020-10-24 01:12:55,220 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:12:58,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:12:58,097 INFO L93 Difference]: Finished difference Result 1272 states and 1672 transitions. [2020-10-24 01:12:58,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 01:12:58,100 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-10-24 01:12:58,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:12:58,126 INFO L225 Difference]: With dead ends: 1272 [2020-10-24 01:12:58,126 INFO L226 Difference]: Without dead ends: 694 [2020-10-24 01:12:58,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 01:12:58,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2020-10-24 01:12:58,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 612. [2020-10-24 01:12:58,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-10-24 01:12:58,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 734 transitions. [2020-10-24 01:12:58,376 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 734 transitions. Word has length 140 [2020-10-24 01:12:58,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:12:58,378 INFO L481 AbstractCegarLoop]: Abstraction has 612 states and 734 transitions. [2020-10-24 01:12:58,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 01:12:58,378 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 734 transitions. [2020-10-24 01:12:58,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-24 01:12:58,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:12:58,386 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:12:58,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:12:58,387 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:12:58,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:12:58,388 INFO L82 PathProgramCache]: Analyzing trace with hash 706328866, now seen corresponding path program 1 times [2020-10-24 01:12:58,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:12:58,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437084886] [2020-10-24 01:12:58,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:12:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:12:58,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:12:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:12:58,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:12:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:12:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:12:59,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437084886] [2020-10-24 01:12:59,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:12:59,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 01:12:59,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040846037] [2020-10-24 01:12:59,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 01:12:59,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:12:59,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 01:12:59,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-24 01:12:59,035 INFO L87 Difference]: Start difference. First operand 612 states and 734 transitions. Second operand 11 states. [2020-10-24 01:12:59,271 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:12:59,660 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:12:59,829 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:12:59,977 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-24 01:13:00,591 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-24 01:13:05,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:13:05,877 INFO L93 Difference]: Finished difference Result 2545 states and 3432 transitions. [2020-10-24 01:13:05,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-24 01:13:05,881 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 161 [2020-10-24 01:13:05,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:13:05,898 INFO L225 Difference]: With dead ends: 2545 [2020-10-24 01:13:05,898 INFO L226 Difference]: Without dead ends: 1698 [2020-10-24 01:13:05,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-10-24 01:13:05,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2020-10-24 01:13:06,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1193. [2020-10-24 01:13:06,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2020-10-24 01:13:06,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1453 transitions. [2020-10-24 01:13:06,196 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1453 transitions. Word has length 161 [2020-10-24 01:13:06,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:13:06,197 INFO L481 AbstractCegarLoop]: Abstraction has 1193 states and 1453 transitions. [2020-10-24 01:13:06,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 01:13:06,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1453 transitions. [2020-10-24 01:13:06,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-24 01:13:06,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:13:06,204 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:13:06,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 01:13:06,205 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:13:06,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:13:06,205 INFO L82 PathProgramCache]: Analyzing trace with hash -173625564, now seen corresponding path program 1 times [2020-10-24 01:13:06,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:13:06,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060677530] [2020-10-24 01:13:06,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:13:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:06,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:13:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:06,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:13:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:06,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:13:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:06,693 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 31 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 01:13:06,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060677530] [2020-10-24 01:13:06,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:13:06,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 01:13:06,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281404567] [2020-10-24 01:13:06,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:13:06,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:13:06,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:13:06,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:13:06,707 INFO L87 Difference]: Start difference. First operand 1193 states and 1453 transitions. Second operand 10 states. [2020-10-24 01:13:07,174 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-24 01:13:08,123 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-10-24 01:13:09,181 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:13:13,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:13:13,577 INFO L93 Difference]: Finished difference Result 3263 states and 4083 transitions. [2020-10-24 01:13:13,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-24 01:13:13,578 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 187 [2020-10-24 01:13:13,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:13:13,601 INFO L225 Difference]: With dead ends: 3263 [2020-10-24 01:13:13,601 INFO L226 Difference]: Without dead ends: 2102 [2020-10-24 01:13:13,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2020-10-24 01:13:13,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2020-10-24 01:13:14,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 1517. [2020-10-24 01:13:14,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1517 states. [2020-10-24 01:13:14,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 1810 transitions. [2020-10-24 01:13:14,053 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 1810 transitions. Word has length 187 [2020-10-24 01:13:14,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:13:14,054 INFO L481 AbstractCegarLoop]: Abstraction has 1517 states and 1810 transitions. [2020-10-24 01:13:14,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:13:14,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 1810 transitions. [2020-10-24 01:13:14,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-24 01:13:14,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:13:14,063 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:13:14,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 01:13:14,064 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:13:14,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:13:14,065 INFO L82 PathProgramCache]: Analyzing trace with hash 889103381, now seen corresponding path program 1 times [2020-10-24 01:13:14,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:13:14,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125100458] [2020-10-24 01:13:14,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:13:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:14,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:13:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:14,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:13:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:14,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:13:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:14,397 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 01:13:14,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125100458] [2020-10-24 01:13:14,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:13:14,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:13:14,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584728881] [2020-10-24 01:13:14,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:13:14,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:13:14,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:13:14,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:13:14,400 INFO L87 Difference]: Start difference. First operand 1517 states and 1810 transitions. Second operand 8 states. [2020-10-24 01:13:14,592 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:13:15,063 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:13:15,640 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:13:18,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:13:18,640 INFO L93 Difference]: Finished difference Result 3823 states and 4584 transitions. [2020-10-24 01:13:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-24 01:13:18,641 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2020-10-24 01:13:18,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:13:18,659 INFO L225 Difference]: With dead ends: 3823 [2020-10-24 01:13:18,659 INFO L226 Difference]: Without dead ends: 2338 [2020-10-24 01:13:18,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-24 01:13:18,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2020-10-24 01:13:19,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 2124. [2020-10-24 01:13:19,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2124 states. [2020-10-24 01:13:19,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 2465 transitions. [2020-10-24 01:13:19,309 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 2465 transitions. Word has length 200 [2020-10-24 01:13:19,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:13:19,309 INFO L481 AbstractCegarLoop]: Abstraction has 2124 states and 2465 transitions. [2020-10-24 01:13:19,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:13:19,309 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 2465 transitions. [2020-10-24 01:13:19,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-24 01:13:19,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:13:19,319 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-24 01:13:19,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 01:13:19,320 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:13:19,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:13:19,320 INFO L82 PathProgramCache]: Analyzing trace with hash 304635794, now seen corresponding path program 1 times [2020-10-24 01:13:19,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:13:19,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993444587] [2020-10-24 01:13:19,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:13:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:19,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:13:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:19,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:13:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:19,658 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 63 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:13:19,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993444587] [2020-10-24 01:13:19,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:13:19,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-24 01:13:19,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017146933] [2020-10-24 01:13:19,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 01:13:19,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:13:19,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 01:13:19,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:13:19,661 INFO L87 Difference]: Start difference. First operand 2124 states and 2465 transitions. Second operand 5 states. [2020-10-24 01:13:21,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:13:21,884 INFO L93 Difference]: Finished difference Result 4825 states and 5801 transitions. [2020-10-24 01:13:21,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 01:13:21,884 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2020-10-24 01:13:21,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:13:21,908 INFO L225 Difference]: With dead ends: 4825 [2020-10-24 01:13:21,908 INFO L226 Difference]: Without dead ends: 2733 [2020-10-24 01:13:21,917 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 [2020-10-24 01:13:21,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2020-10-24 01:13:22,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 2702. [2020-10-24 01:13:22,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2702 states. [2020-10-24 01:13:22,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2702 states to 2702 states and 3228 transitions. [2020-10-24 01:13:22,663 INFO L78 Accepts]: Start accepts. Automaton has 2702 states and 3228 transitions. Word has length 212 [2020-10-24 01:13:22,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:13:22,664 INFO L481 AbstractCegarLoop]: Abstraction has 2702 states and 3228 transitions. [2020-10-24 01:13:22,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 01:13:22,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2702 states and 3228 transitions. [2020-10-24 01:13:22,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-24 01:13:22,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:13:22,678 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:13:22,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 01:13:22,679 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:13:22,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:13:22,680 INFO L82 PathProgramCache]: Analyzing trace with hash 593742032, now seen corresponding path program 1 times [2020-10-24 01:13:22,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:13:22,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062415130] [2020-10-24 01:13:22,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:13:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:22,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:13:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:22,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:13:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:22,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:13:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:22,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-24 01:13:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:22,973 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 78 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-24 01:13:22,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062415130] [2020-10-24 01:13:22,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:13:22,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:13:22,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555291645] [2020-10-24 01:13:22,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:13:22,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:13:22,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:13:22,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:13:22,976 INFO L87 Difference]: Start difference. First operand 2702 states and 3228 transitions. Second operand 7 states. [2020-10-24 01:13:26,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:13:26,052 INFO L93 Difference]: Finished difference Result 6121 states and 7624 transitions. [2020-10-24 01:13:26,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:13:26,053 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 226 [2020-10-24 01:13:26,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:13:26,083 INFO L225 Difference]: With dead ends: 6121 [2020-10-24 01:13:26,084 INFO L226 Difference]: Without dead ends: 3451 [2020-10-24 01:13:26,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 01:13:26,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3451 states. [2020-10-24 01:13:26,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3451 to 3035. [2020-10-24 01:13:26,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3035 states. [2020-10-24 01:13:26,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 3648 transitions. [2020-10-24 01:13:26,813 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 3648 transitions. Word has length 226 [2020-10-24 01:13:26,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:13:26,814 INFO L481 AbstractCegarLoop]: Abstraction has 3035 states and 3648 transitions. [2020-10-24 01:13:26,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:13:26,814 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 3648 transitions. [2020-10-24 01:13:26,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-24 01:13:26,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:13:26,827 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:13:26,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 01:13:26,828 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:13:26,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:13:26,828 INFO L82 PathProgramCache]: Analyzing trace with hash 66187030, now seen corresponding path program 1 times [2020-10-24 01:13:26,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:13:26,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685005332] [2020-10-24 01:13:26,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:13:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:26,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:13:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:27,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:13:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:27,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:13:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:27,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-24 01:13:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:27,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-24 01:13:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:27,255 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 131 proven. 18 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-24 01:13:27,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685005332] [2020-10-24 01:13:27,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:13:27,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:13:27,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841103244] [2020-10-24 01:13:27,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:13:27,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:13:27,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:13:27,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:13:27,258 INFO L87 Difference]: Start difference. First operand 3035 states and 3648 transitions. Second operand 8 states. [2020-10-24 01:13:27,456 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:13:27,721 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:13:32,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:13:32,288 INFO L93 Difference]: Finished difference Result 7470 states and 9014 transitions. [2020-10-24 01:13:32,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-24 01:13:32,289 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 255 [2020-10-24 01:13:32,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:13:32,311 INFO L225 Difference]: With dead ends: 7470 [2020-10-24 01:13:32,312 INFO L226 Difference]: Without dead ends: 3907 [2020-10-24 01:13:32,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-24 01:13:32,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3907 states. [2020-10-24 01:13:33,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3907 to 3899. [2020-10-24 01:13:33,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3899 states. [2020-10-24 01:13:33,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3899 states to 3899 states and 4479 transitions. [2020-10-24 01:13:33,299 INFO L78 Accepts]: Start accepts. Automaton has 3899 states and 4479 transitions. Word has length 255 [2020-10-24 01:13:33,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:13:33,299 INFO L481 AbstractCegarLoop]: Abstraction has 3899 states and 4479 transitions. [2020-10-24 01:13:33,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:13:33,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3899 states and 4479 transitions. [2020-10-24 01:13:33,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-24 01:13:33,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:13:33,313 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-24 01:13:33,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-24 01:13:33,314 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:13:33,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:13:33,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1162845870, now seen corresponding path program 1 times [2020-10-24 01:13:33,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:13:33,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010929501] [2020-10-24 01:13:33,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:13:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:33,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:13:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:33,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:13:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:33,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 01:13:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:33,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-24 01:13:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:33,897 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 109 proven. 21 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-24 01:13:33,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010929501] [2020-10-24 01:13:33,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:13:33,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 01:13:33,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46605780] [2020-10-24 01:13:33,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 01:13:33,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:13:33,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 01:13:33,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-24 01:13:33,909 INFO L87 Difference]: Start difference. First operand 3899 states and 4479 transitions. Second operand 11 states. [2020-10-24 01:13:34,112 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:13:34,387 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-24 01:13:34,689 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:13:35,138 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:13:36,802 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-10-24 01:13:37,168 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:13:39,765 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:13:41,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:13:41,510 INFO L93 Difference]: Finished difference Result 10247 states and 11906 transitions. [2020-10-24 01:13:41,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-24 01:13:41,511 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 256 [2020-10-24 01:13:41,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:13:41,547 INFO L225 Difference]: With dead ends: 10247 [2020-10-24 01:13:41,548 INFO L226 Difference]: Without dead ends: 6529 [2020-10-24 01:13:41,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2020-10-24 01:13:41,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6529 states. [2020-10-24 01:13:42,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6529 to 4882. [2020-10-24 01:13:42,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4882 states. [2020-10-24 01:13:42,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4882 states to 4882 states and 5449 transitions. [2020-10-24 01:13:42,727 INFO L78 Accepts]: Start accepts. Automaton has 4882 states and 5449 transitions. Word has length 256 [2020-10-24 01:13:42,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:13:42,728 INFO L481 AbstractCegarLoop]: Abstraction has 4882 states and 5449 transitions. [2020-10-24 01:13:42,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 01:13:42,728 INFO L276 IsEmpty]: Start isEmpty. Operand 4882 states and 5449 transitions. [2020-10-24 01:13:42,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-10-24 01:13:42,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:13:42,749 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:13:42,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-24 01:13:42,750 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:13:42,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:13:42,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1344443046, now seen corresponding path program 1 times [2020-10-24 01:13:42,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:13:42,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554418386] [2020-10-24 01:13:42,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:13:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:42,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:13:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:43,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:13:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:43,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:13:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:43,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-24 01:13:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:43,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-24 01:13:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:43,195 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 153 proven. 32 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-24 01:13:43,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554418386] [2020-10-24 01:13:43,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:13:43,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 01:13:43,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599889569] [2020-10-24 01:13:43,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:13:43,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:13:43,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:13:43,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:13:43,198 INFO L87 Difference]: Start difference. First operand 4882 states and 5449 transitions. Second operand 10 states. [2020-10-24 01:13:43,626 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-24 01:13:44,653 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:13:45,182 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:13:45,831 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:13:46,491 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:13:50,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:13:50,964 INFO L93 Difference]: Finished difference Result 12103 states and 13564 transitions. [2020-10-24 01:13:50,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-24 01:13:50,965 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 281 [2020-10-24 01:13:50,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:13:51,000 INFO L225 Difference]: With dead ends: 12103 [2020-10-24 01:13:51,000 INFO L226 Difference]: Without dead ends: 7253 [2020-10-24 01:13:51,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=299, Invalid=1183, Unknown=0, NotChecked=0, Total=1482 [2020-10-24 01:13:51,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7253 states. [2020-10-24 01:13:52,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7253 to 6340. [2020-10-24 01:13:52,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6340 states. [2020-10-24 01:13:52,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6340 states to 6340 states and 7071 transitions. [2020-10-24 01:13:52,430 INFO L78 Accepts]: Start accepts. Automaton has 6340 states and 7071 transitions. Word has length 281 [2020-10-24 01:13:52,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:13:52,430 INFO L481 AbstractCegarLoop]: Abstraction has 6340 states and 7071 transitions. [2020-10-24 01:13:52,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:13:52,431 INFO L276 IsEmpty]: Start isEmpty. Operand 6340 states and 7071 transitions. [2020-10-24 01:13:52,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-24 01:13:52,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:13:52,449 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:13:52,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-24 01:13:52,449 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:13:52,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:13:52,450 INFO L82 PathProgramCache]: Analyzing trace with hash -783007269, now seen corresponding path program 1 times [2020-10-24 01:13:52,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:13:52,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783168899] [2020-10-24 01:13:52,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:13:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:52,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:13:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:52,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:13:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:52,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 01:13:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:52,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-24 01:13:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:52,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-24 01:13:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:13:52,869 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 178 proven. 28 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-24 01:13:52,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783168899] [2020-10-24 01:13:52,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:13:52,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 01:13:52,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762681998] [2020-10-24 01:13:52,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:13:52,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:13:52,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:13:52,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:13:52,871 INFO L87 Difference]: Start difference. First operand 6340 states and 7071 transitions. Second operand 10 states. [2020-10-24 01:13:53,187 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:13:54,397 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-24 01:13:54,626 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:13:55,338 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:13:57,193 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:13:58,183 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:14:00,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:14:00,436 INFO L93 Difference]: Finished difference Result 13977 states and 15655 transitions. [2020-10-24 01:14:00,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-24 01:14:00,444 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 299 [2020-10-24 01:14:00,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:14:00,490 INFO L225 Difference]: With dead ends: 13977 [2020-10-24 01:14:00,491 INFO L226 Difference]: Without dead ends: 7520 [2020-10-24 01:14:00,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2020-10-24 01:14:00,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7520 states. [2020-10-24 01:14:02,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7520 to 7279. [2020-10-24 01:14:02,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7279 states. [2020-10-24 01:14:02,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7279 states to 7279 states and 7873 transitions. [2020-10-24 01:14:02,396 INFO L78 Accepts]: Start accepts. Automaton has 7279 states and 7873 transitions. Word has length 299 [2020-10-24 01:14:02,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:14:02,396 INFO L481 AbstractCegarLoop]: Abstraction has 7279 states and 7873 transitions. [2020-10-24 01:14:02,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:14:02,396 INFO L276 IsEmpty]: Start isEmpty. Operand 7279 states and 7873 transitions. [2020-10-24 01:14:02,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-10-24 01:14:02,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:14:02,412 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:14:02,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-24 01:14:02,413 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:14:02,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:14:02,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1299117741, now seen corresponding path program 1 times [2020-10-24 01:14:02,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:14:02,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478008123] [2020-10-24 01:14:02,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:14:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:02,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:14:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:02,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:14:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:02,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-24 01:14:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:02,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-24 01:14:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:02,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-24 01:14:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:02,854 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 223 proven. 18 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-24 01:14:02,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478008123] [2020-10-24 01:14:02,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:14:02,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:14:02,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446639225] [2020-10-24 01:14:02,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:14:02,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:14:02,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:14:02,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:14:02,857 INFO L87 Difference]: Start difference. First operand 7279 states and 7873 transitions. Second operand 8 states. [2020-10-24 01:14:04,381 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:14:07,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:14:07,727 INFO L93 Difference]: Finished difference Result 14736 states and 15937 transitions. [2020-10-24 01:14:07,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-24 01:14:07,727 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 339 [2020-10-24 01:14:07,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:14:07,761 INFO L225 Difference]: With dead ends: 14736 [2020-10-24 01:14:07,761 INFO L226 Difference]: Without dead ends: 7489 [2020-10-24 01:14:07,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-24 01:14:07,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7489 states. [2020-10-24 01:14:09,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7489 to 7289. [2020-10-24 01:14:09,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7289 states. [2020-10-24 01:14:09,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7289 states to 7289 states and 7866 transitions. [2020-10-24 01:14:09,617 INFO L78 Accepts]: Start accepts. Automaton has 7289 states and 7866 transitions. Word has length 339 [2020-10-24 01:14:09,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:14:09,618 INFO L481 AbstractCegarLoop]: Abstraction has 7289 states and 7866 transitions. [2020-10-24 01:14:09,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:14:09,618 INFO L276 IsEmpty]: Start isEmpty. Operand 7289 states and 7866 transitions. [2020-10-24 01:14:09,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-10-24 01:14:09,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:14:09,632 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:14:09,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-24 01:14:09,633 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:14:09,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:14:09,633 INFO L82 PathProgramCache]: Analyzing trace with hash 46843410, now seen corresponding path program 1 times [2020-10-24 01:14:09,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:14:09,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664825029] [2020-10-24 01:14:09,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:14:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:09,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:14:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:09,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:14:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:09,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-24 01:14:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:09,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-24 01:14:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:09,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-24 01:14:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:09,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-24 01:14:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:10,130 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 210 proven. 40 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2020-10-24 01:14:10,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664825029] [2020-10-24 01:14:10,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:14:10,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-24 01:14:10,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675583307] [2020-10-24 01:14:10,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 01:14:10,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:14:10,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 01:14:10,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-24 01:14:10,133 INFO L87 Difference]: Start difference. First operand 7289 states and 7866 transitions. Second operand 9 states. [2020-10-24 01:14:11,770 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:14:15,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:14:15,358 INFO L93 Difference]: Finished difference Result 15406 states and 16633 transitions. [2020-10-24 01:14:15,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-24 01:14:15,359 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 360 [2020-10-24 01:14:15,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:14:15,389 INFO L225 Difference]: With dead ends: 15406 [2020-10-24 01:14:15,389 INFO L226 Difference]: Without dead ends: 6613 [2020-10-24 01:14:15,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-24 01:14:15,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6613 states. [2020-10-24 01:14:17,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6613 to 6457. [2020-10-24 01:14:17,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6457 states. [2020-10-24 01:14:17,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6457 states to 6457 states and 6905 transitions. [2020-10-24 01:14:17,278 INFO L78 Accepts]: Start accepts. Automaton has 6457 states and 6905 transitions. Word has length 360 [2020-10-24 01:14:17,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:14:17,279 INFO L481 AbstractCegarLoop]: Abstraction has 6457 states and 6905 transitions. [2020-10-24 01:14:17,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 01:14:17,279 INFO L276 IsEmpty]: Start isEmpty. Operand 6457 states and 6905 transitions. [2020-10-24 01:14:17,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-10-24 01:14:17,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:14:17,290 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:14:17,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-24 01:14:17,291 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:14:17,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:14:17,291 INFO L82 PathProgramCache]: Analyzing trace with hash -767716814, now seen corresponding path program 1 times [2020-10-24 01:14:17,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:14:17,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392921752] [2020-10-24 01:14:17,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:14:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:17,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:14:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:17,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:14:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:17,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-24 01:14:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:17,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-24 01:14:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:17,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-24 01:14:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:17,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-24 01:14:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:17,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-10-24 01:14:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:14:18,422 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 286 proven. 48 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-10-24 01:14:18,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392921752] [2020-10-24 01:14:18,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:14:18,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-24 01:14:18,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855827349] [2020-10-24 01:14:18,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-24 01:14:18,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:14:18,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-24 01:14:18,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-24 01:14:18,425 INFO L87 Difference]: Start difference. First operand 6457 states and 6905 transitions. Second operand 14 states. [2020-10-24 01:14:18,620 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:14:20,570 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-24 01:14:21,577 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-24 01:14:23,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:14:23,245 INFO L93 Difference]: Finished difference Result 10324 states and 11058 transitions. [2020-10-24 01:14:23,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-24 01:14:23,245 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 397 [2020-10-24 01:14:23,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:14:23,249 INFO L225 Difference]: With dead ends: 10324 [2020-10-24 01:14:23,249 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 01:14:23,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-10-24 01:14:23,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 01:14:23,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 01:14:23,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 01:14:23,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 01:14:23,266 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 397 [2020-10-24 01:14:23,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:14:23,267 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 01:14:23,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-24 01:14:23,267 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 01:14:23,267 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 01:14:23,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-24 01:14:23,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 01:14:23,848 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-24 01:14:24,194 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-24 01:14:48,622 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 256 [2020-10-24 01:15:14,517 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 256 [2020-10-24 01:15:15,754 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 256 [2020-10-24 01:15:16,001 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 256 [2020-10-24 01:15:30,817 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 256 [2020-10-24 01:16:40,300 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 256 [2020-10-24 01:16:41,877 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 157 [2020-10-24 01:16:43,829 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 157 [2020-10-24 01:17:23,658 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 256 [2020-10-24 01:17:23,914 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 256 [2020-10-24 01:17:24,164 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 256 [2020-10-24 01:17:26,144 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 256 [2020-10-24 01:17:35,795 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 199 DAG size of output: 77 [2020-10-24 01:17:38,780 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:17:41,691 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-10-24 01:17:44,644 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:17:45,751 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:17:46,881 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:17:48,025 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:17:50,985 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:17:52,091 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:17:55,097 WARN L193 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:17:56,473 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2020-10-24 01:17:57,857 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2020-10-24 01:17:58,829 WARN L193 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 73 [2020-10-24 01:18:00,073 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 165 DAG size of output: 78 [2020-10-24 01:18:01,308 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2020-10-24 01:18:02,918 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 205 DAG size of output: 82 [2020-10-24 01:18:06,078 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:18:07,835 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 206 DAG size of output: 79 [2020-10-24 01:18:08,808 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 74 [2020-10-24 01:18:11,899 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:18:15,044 WARN L193 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:18:16,103 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 152 DAG size of output: 75 [2020-10-24 01:18:17,055 WARN L193 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 73 [2020-10-24 01:18:18,463 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 153 DAG size of output: 75 [2020-10-24 01:18:19,946 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 211 DAG size of output: 79 [2020-10-24 01:18:22,934 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-10-24 01:18:23,772 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 71 [2020-10-24 01:18:24,900 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:18:26,133 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 150 DAG size of output: 68 [2020-10-24 01:18:27,141 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 75 [2020-10-24 01:18:28,186 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 152 DAG size of output: 75 [2020-10-24 01:18:29,180 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 82 [2020-10-24 01:18:32,155 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:18:33,522 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2020-10-24 01:18:36,554 WARN L193 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:18:37,493 WARN L193 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 73 [2020-10-24 01:18:38,735 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 159 DAG size of output: 75 [2020-10-24 01:18:39,687 WARN L193 SmtUtils]: Spent 944.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 77 [2020-10-24 01:18:42,686 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:18:43,562 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 74 [2020-10-24 01:18:44,566 WARN L193 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 75 [2020-10-24 01:18:45,810 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 154 DAG size of output: 71 [2020-10-24 01:18:47,234 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2020-10-24 01:18:48,829 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 169 DAG size of output: 88 [2020-10-24 01:18:49,708 WARN L193 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 74 [2020-10-24 01:18:50,583 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 74 [2020-10-24 01:18:53,556 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:18:54,413 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 72 [2020-10-24 01:18:55,945 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 211 DAG size of output: 78 [2020-10-24 01:18:57,006 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 170 DAG size of output: 81 [2020-10-24 01:18:58,248 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 152 DAG size of output: 70 [2020-10-24 01:18:59,235 WARN L193 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-10-24 01:19:00,575 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 214 DAG size of output: 74 [2020-10-24 01:19:01,424 WARN L193 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 73 [2020-10-24 01:19:02,803 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2020-10-24 01:19:03,778 WARN L193 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 77 [2020-10-24 01:19:05,253 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 158 DAG size of output: 75 [2020-10-24 01:19:08,258 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:19:09,512 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 159 DAG size of output: 76 [2020-10-24 01:19:11,271 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 232 DAG size of output: 73 [2020-10-24 01:19:12,439 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:19:13,330 WARN L193 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 73 [2020-10-24 01:19:16,315 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-10-24 01:19:17,166 WARN L193 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 71 [2020-10-24 01:19:18,315 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:19:21,399 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:19:24,333 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-10-24 01:19:27,389 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:19:28,839 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 199 DAG size of output: 77 [2020-10-24 01:19:30,018 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:19:31,176 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:19:34,200 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:19:37,463 WARN L193 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:19:38,362 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 71 [2020-10-24 01:19:39,931 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 168 DAG size of output: 81 [2020-10-24 01:19:43,093 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:19:44,078 WARN L193 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 68 [2020-10-24 01:19:45,364 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 213 DAG size of output: 74 [2020-10-24 01:19:46,646 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 165 DAG size of output: 78 [2020-10-24 01:19:47,922 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2020-10-24 01:19:49,529 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 205 DAG size of output: 83 [2020-10-24 01:19:51,073 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 213 DAG size of output: 74 [2020-10-24 01:19:52,928 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 230 DAG size of output: 81 [2020-10-24 01:19:54,216 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 154 DAG size of output: 71 [2020-10-24 01:19:55,247 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2020-10-24 01:19:56,551 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2020-10-24 01:19:59,724 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:20:00,833 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 168 DAG size of output: 83 [2020-10-24 01:20:02,112 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2020-10-24 01:20:02,964 WARN L193 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 73 [2020-10-24 01:20:04,007 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 164 DAG size of output: 82 [2020-10-24 01:20:04,952 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 77 [2020-10-24 01:20:06,373 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 199 DAG size of output: 77 [2020-10-24 01:20:07,259 WARN L193 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 71 [2020-10-24 01:20:10,273 WARN L193 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-10-24 01:20:13,455 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:20:14,922 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 199 DAG size of output: 77 [2020-10-24 01:20:18,004 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:20:20,973 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-10-24 01:20:24,063 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:20:25,524 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 199 DAG size of output: 77 [2020-10-24 01:20:27,009 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 158 DAG size of output: 75 [2020-10-24 01:20:28,586 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-10-24 01:20:31,725 WARN L193 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:20:32,709 WARN L193 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 74 [2020-10-24 01:20:33,615 WARN L193 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 74 [2020-10-24 01:20:34,921 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 164 DAG size of output: 79 [2020-10-24 01:20:36,521 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 221 DAG size of output: 77 [2020-10-24 01:20:37,546 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 208 DAG size of output: 74 [2020-10-24 01:20:38,453 WARN L193 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 72 [2020-10-24 01:20:39,850 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 180 DAG size of output: 80 [2020-10-24 01:20:41,119 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2020-10-24 01:20:42,101 WARN L193 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 68 [2020-10-24 01:20:43,362 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 167 DAG size of output: 75 [2020-10-24 01:20:46,562 WARN L193 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:20:47,988 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2020-10-24 01:20:51,209 WARN L193 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:20:52,693 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 155 DAG size of output: 77 [2020-10-24 01:20:53,888 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:20:55,090 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:20:58,197 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:20:59,652 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 206 DAG size of output: 81 [2020-10-24 01:21:00,704 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 162 DAG size of output: 76 [2020-10-24 01:21:03,900 WARN L193 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:21:04,981 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 162 DAG size of output: 75 [2020-10-24 01:21:06,253 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2020-10-24 01:21:07,498 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2020-10-24 01:21:08,690 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 162 DAG size of output: 71 [2020-10-24 01:21:10,044 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 157 DAG size of output: 77 [2020-10-24 01:21:11,402 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 156 DAG size of output: 77 [2020-10-24 01:21:14,628 WARN L193 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:21:15,644 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 203 DAG size of output: 74 [2020-10-24 01:21:17,254 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2020-10-24 01:21:18,831 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 157 DAG size of output: 77 [2020-10-24 01:21:20,193 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 157 DAG size of output: 77 [2020-10-24 01:21:21,559 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 163 DAG size of output: 79 [2020-10-24 01:21:22,995 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2020-10-24 01:21:24,386 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 169 DAG size of output: 79 [2020-10-24 01:21:25,744 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 157 DAG size of output: 77 [2020-10-24 01:21:26,937 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 166 DAG size of output: 79 [2020-10-24 01:21:28,408 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 176 DAG size of output: 82 [2020-10-24 01:21:30,051 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 221 DAG size of output: 84 [2020-10-24 01:21:31,308 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 157 DAG size of output: 72 [2020-10-24 01:21:32,331 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 160 DAG size of output: 80 [2020-10-24 01:21:33,385 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 159 DAG size of output: 76 [2020-10-24 01:21:34,473 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 168 DAG size of output: 78 [2020-10-24 01:21:35,785 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2020-10-24 01:21:37,266 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 199 DAG size of output: 77 [2020-10-24 01:21:39,126 WARN L193 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 232 DAG size of output: 73 [2020-10-24 01:21:42,303 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:21:45,477 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:21:47,354 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 232 DAG size of output: 73 [2020-10-24 01:21:49,242 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 232 DAG size of output: 73 [2020-10-24 01:21:50,461 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:21:51,450 WARN L193 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2020-10-24 01:21:54,662 WARN L193 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:21:56,021 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 162 DAG size of output: 77 [2020-10-24 01:21:56,988 WARN L193 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 74 [2020-10-24 01:21:58,464 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 160 DAG size of output: 78 [2020-10-24 01:22:01,580 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-10-24 01:22:04,696 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-10-24 01:22:06,020 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 212 DAG size of output: 77 [2020-10-24 01:22:07,333 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2020-10-24 01:22:10,450 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-10-24 01:22:11,649 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:22:12,527 WARN L193 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 60 [2020-10-24 01:22:13,742 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:22:14,614 WARN L193 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 60 [2020-10-24 01:22:17,809 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:22:19,012 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:22:20,204 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:22:23,381 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:22:24,599 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:22:27,797 WARN L193 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:22:29,014 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:22:30,489 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 01:22:31,884 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 162 DAG size of output: 77 [2020-10-24 01:22:33,211 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 153 DAG size of output: 73 [2020-10-24 01:22:36,465 WARN L193 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:22:37,787 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 212 DAG size of output: 77 [2020-10-24 01:22:41,059 WARN L193 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:22:42,036 WARN L193 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 74 [2020-10-24 01:22:43,035 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 75 [2020-10-24 01:22:44,558 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 199 DAG size of output: 77 [2020-10-24 01:22:47,654 WARN L193 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-10-24 01:22:48,944 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2020-10-24 01:22:52,065 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-10-24 01:22:53,531 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 156 DAG size of output: 74 [2020-10-24 01:22:56,756 WARN L193 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:22:58,258 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 199 DAG size of output: 77 [2020-10-24 01:23:00,185 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 232 DAG size of output: 73 [2020-10-24 01:23:01,303 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 159 DAG size of output: 76 [2020-10-24 01:23:02,431 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 212 DAG size of output: 75 [2020-10-24 01:23:03,752 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 157 DAG size of output: 76 [2020-10-24 01:23:04,767 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 160 DAG size of output: 80 [2020-10-24 01:23:08,069 WARN L193 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:23:11,357 WARN L193 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:23:12,765 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 161 DAG size of output: 77 [2020-10-24 01:23:13,774 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 78 [2020-10-24 01:23:15,109 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2020-10-24 01:23:16,079 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 78 [2020-10-24 01:23:17,554 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 01:23:18,916 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2020-10-24 01:23:20,151 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 214 DAG size of output: 79 [2020-10-24 01:23:21,546 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 163 DAG size of output: 78 [2020-10-24 01:23:23,286 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2020-10-24 01:23:24,422 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 152 DAG size of output: 75 [2020-10-24 01:23:25,919 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-10-24 01:23:26,988 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 164 DAG size of output: 82 [2020-10-24 01:23:30,323 WARN L193 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:23:31,859 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 176 DAG size of output: 83 [2020-10-24 01:23:32,905 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 164 DAG size of output: 78 [2020-10-24 01:23:34,310 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 154 DAG size of output: 72 [2020-10-24 01:23:35,640 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 166 DAG size of output: 75 [2020-10-24 01:23:38,827 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:23:39,860 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 152 DAG size of output: 74 [2020-10-24 01:23:43,041 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:23:44,783 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 169 DAG size of output: 80 [2020-10-24 01:23:45,846 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 167 DAG size of output: 75 [2020-10-24 01:23:47,201 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2020-10-24 01:23:50,393 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:23:51,432 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 159 DAG size of output: 76 [2020-10-24 01:23:52,812 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 232 DAG size of output: 81 [2020-10-24 01:23:53,901 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 152 DAG size of output: 75 [2020-10-24 01:23:54,917 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 160 DAG size of output: 79 [2020-10-24 01:23:56,768 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 209 DAG size of output: 82 [2020-10-24 01:23:57,690 WARN L193 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 76 [2020-10-24 01:24:00,872 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:24:02,145 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2020-10-24 01:24:05,331 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:24:06,365 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 163 DAG size of output: 82 [2020-10-24 01:24:07,761 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 154 DAG size of output: 72 [2020-10-24 01:24:08,801 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2020-10-24 01:24:09,886 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 152 DAG size of output: 75 [2020-10-24 01:24:12,992 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:24:14,476 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 199 DAG size of output: 77 [2020-10-24 01:24:15,671 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:24:16,852 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:24:19,976 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:24:21,170 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:24:24,298 WARN L193 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:24:27,511 WARN L193 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:24:28,814 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2020-10-24 01:24:32,033 WARN L193 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:24:33,095 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 162 DAG size of output: 82 [2020-10-24 01:24:34,475 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 156 DAG size of output: 77 [2020-10-24 01:24:37,696 WARN L193 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:24:39,486 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 205 DAG size of output: 80 [2020-10-24 01:24:40,584 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 152 DAG size of output: 75 [2020-10-24 01:24:41,591 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 73 [2020-10-24 01:24:44,807 WARN L193 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:24:45,780 WARN L193 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 75 [2020-10-24 01:24:49,004 WARN L193 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:24:50,205 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2020-10-24 01:24:53,295 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-10-24 01:24:56,397 WARN L193 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-10-24 01:24:57,918 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 158 DAG size of output: 75 [2020-10-24 01:24:58,962 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 155 DAG size of output: 74 [2020-10-24 01:24:59,931 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 70 [2020-10-24 01:25:03,155 WARN L193 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:25:04,254 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 73 [2020-10-24 01:25:07,484 WARN L193 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:25:08,864 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2020-10-24 01:25:10,480 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 210 DAG size of output: 78 [2020-10-24 01:25:13,725 WARN L193 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:25:15,049 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 212 DAG size of output: 77 [2020-10-24 01:25:16,527 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 173 DAG size of output: 80 [2020-10-24 01:25:18,191 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 205 DAG size of output: 83 [2020-10-24 01:25:19,181 WARN L193 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 74 [2020-10-24 01:25:22,434 WARN L193 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:25:25,709 WARN L193 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:25:27,027 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2020-10-24 01:25:27,996 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 74 [2020-10-24 01:25:31,111 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-10-24 01:25:34,403 WARN L193 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:25:36,320 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 209 DAG size of output: 82 [2020-10-24 01:25:37,886 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 225 DAG size of output: 82 [2020-10-24 01:25:41,186 WARN L193 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:25:42,299 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 159 DAG size of output: 80 [2020-10-24 01:25:43,997 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 188 DAG size of output: 85 [2020-10-24 01:25:45,671 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 212 DAG size of output: 77 [2020-10-24 01:25:46,791 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 212 DAG size of output: 75 [2020-10-24 01:25:50,069 WARN L193 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2020-10-24 01:25:53,363 WARN L193 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 266 DAG size of output: 89