/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_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:17:13,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:17:13,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:17:13,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 01:17:13,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:17:13,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:17:13,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:17:13,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:17:13,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:17:13,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:17:13,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:17:13,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:17:13,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:17:13,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:17:13,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:17:13,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:17:13,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 01:17:13,861 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 01:17:13,880 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:17:13,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:17:13,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:17:13,895 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:17:13,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:17:13,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:17:13,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:17:13,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:17:13,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:17:13,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:17:13,897 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:17:13,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:17:13,898 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:17:13,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:17:13,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:17:13,898 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:17:13,898 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:17:13,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:17:13,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:17:13,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:17:13,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:17:13,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:17:13,900 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:17:14,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:17:14,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:17:14,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:17:14,379 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:17:14,380 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:17:14,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label39.c [2020-10-24 01:17:14,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc8a3bed/bb50e77eaf7242469b8b492e6267308d/FLAG2d54267da [2020-10-24 01:17:15,254 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:17:15,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label39.c [2020-10-24 01:17:15,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc8a3bed/bb50e77eaf7242469b8b492e6267308d/FLAG2d54267da [2020-10-24 01:17:15,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc8a3bed/bb50e77eaf7242469b8b492e6267308d [2020-10-24 01:17:15,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:17:15,454 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:17:15,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:17:15,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:17:15,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:17:15,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:17:15" (1/1) ... [2020-10-24 01:17:15,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c0eefda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:15, skipping insertion in model container [2020-10-24 01:17:15,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:17:15" (1/1) ... [2020-10-24 01:17:15,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:17:15,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:17:16,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:17:16,039 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:17:16,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:17:16,218 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:17:16,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:16 WrapperNode [2020-10-24 01:17:16,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:17:16,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:17:16,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:17:16,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:17:16,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:16" (1/1) ... [2020-10-24 01:17:16,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:16" (1/1) ... [2020-10-24 01:17:16,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:16" (1/1) ... [2020-10-24 01:17:16,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:16" (1/1) ... [2020-10-24 01:17:16,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:16" (1/1) ... [2020-10-24 01:17:16,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:16" (1/1) ... [2020-10-24 01:17:16,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:16" (1/1) ... [2020-10-24 01:17:16,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:17:16,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:17:16,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:17:16,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:17:16,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:16" (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 01:17:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:17:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:17:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:17:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-24 01:17:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:17:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-24 01:17:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:17:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:17:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:17:16,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:17:16,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 01:17:16,429 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-24 01:17:16,429 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:17:16,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:17:16,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:17:16,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:17:16,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:17:16,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:17:16,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:17:17,767 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:17:17,767 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-24 01:17:17,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:17:17 BoogieIcfgContainer [2020-10-24 01:17:17,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:17:17,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:17:17,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:17:17,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:17:17,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:17:15" (1/3) ... [2020-10-24 01:17:17,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c33ace0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:17:17, skipping insertion in model container [2020-10-24 01:17:17,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:16" (2/3) ... [2020-10-24 01:17:17,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c33ace0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:17:17, skipping insertion in model container [2020-10-24 01:17:17,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:17:17" (3/3) ... [2020-10-24 01:17:17,782 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label39.c [2020-10-24 01:17:17,795 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:17:17,801 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:17:17,813 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:17:17,838 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:17:17,838 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:17:17,838 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:17:17,838 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:17:17,838 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:17:17,838 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:17:17,839 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:17:17,839 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:17:17,871 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states. [2020-10-24 01:17:17,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-24 01:17:17,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:17:17,900 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:17:17,901 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:17:17,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:17:17,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1825493562, now seen corresponding path program 1 times [2020-10-24 01:17:17,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:17:17,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048350388] [2020-10-24 01:17:17,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:17:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:18,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:17:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:18,738 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 01:17:18,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048350388] [2020-10-24 01:17:18,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:17:18,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-24 01:17:18,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715055242] [2020-10-24 01:17:18,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 01:17:18,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:17:18,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 01:17:18,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:17:18,773 INFO L87 Difference]: Start difference. First operand 537 states. Second operand 5 states. [2020-10-24 01:17:22,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:17:22,376 INFO L93 Difference]: Finished difference Result 1373 states and 1909 transitions. [2020-10-24 01:17:22,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 01:17:22,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 169 [2020-10-24 01:17:22,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:17:22,404 INFO L225 Difference]: With dead ends: 1373 [2020-10-24 01:17:22,405 INFO L226 Difference]: Without dead ends: 790 [2020-10-24 01:17:22,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:17:22,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2020-10-24 01:17:22,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 755. [2020-10-24 01:17:22,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2020-10-24 01:17:22,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 923 transitions. [2020-10-24 01:17:22,685 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 923 transitions. Word has length 169 [2020-10-24 01:17:22,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:17:22,689 INFO L481 AbstractCegarLoop]: Abstraction has 755 states and 923 transitions. [2020-10-24 01:17:22,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 01:17:22,689 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 923 transitions. [2020-10-24 01:17:22,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-24 01:17:22,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:17:22,711 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:17:22,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:17:22,712 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:17:22,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:17:22,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1323499324, now seen corresponding path program 1 times [2020-10-24 01:17:22,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:17:22,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857989292] [2020-10-24 01:17:22,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:17:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:23,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:17:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:23,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:17:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:23,627 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 01:17:23,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857989292] [2020-10-24 01:17:23,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:17:23,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 01:17:23,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471854665] [2020-10-24 01:17:23,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 01:17:23,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:17:23,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 01:17:23,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-24 01:17:23,635 INFO L87 Difference]: Start difference. First operand 755 states and 923 transitions. Second operand 11 states. [2020-10-24 01:17:24,277 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-24 01:17:24,453 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:17:24,880 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-24 01:17:29,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:17:29,505 INFO L93 Difference]: Finished difference Result 2962 states and 3993 transitions. [2020-10-24 01:17:29,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-24 01:17:29,506 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 190 [2020-10-24 01:17:29,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:17:29,524 INFO L225 Difference]: With dead ends: 2962 [2020-10-24 01:17:29,524 INFO L226 Difference]: Without dead ends: 1972 [2020-10-24 01:17:29,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-10-24 01:17:29,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2020-10-24 01:17:29,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1477. [2020-10-24 01:17:29,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1477 states. [2020-10-24 01:17:29,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 1797 transitions. [2020-10-24 01:17:29,884 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 1797 transitions. Word has length 190 [2020-10-24 01:17:29,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:17:29,884 INFO L481 AbstractCegarLoop]: Abstraction has 1477 states and 1797 transitions. [2020-10-24 01:17:29,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 01:17:29,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 1797 transitions. [2020-10-24 01:17:29,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-24 01:17:29,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:17:29,894 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:17:29,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 01:17:29,894 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:17:29,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:17:29,895 INFO L82 PathProgramCache]: Analyzing trace with hash -962767157, now seen corresponding path program 1 times [2020-10-24 01:17:29,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:17:29,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211547914] [2020-10-24 01:17:29,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:17:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:30,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:17:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:30,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:17:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:30,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:17:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:30,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-24 01:17:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:30,288 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 71 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-24 01:17:30,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1211547914] [2020-10-24 01:17:30,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:17:30,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:17:30,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117393285] [2020-10-24 01:17:30,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:17:30,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:17:30,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:17:30,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:17:30,292 INFO L87 Difference]: Start difference. First operand 1477 states and 1797 transitions. Second operand 7 states. [2020-10-24 01:17:30,508 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:17:33,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:17:33,545 INFO L93 Difference]: Finished difference Result 3708 states and 4612 transitions. [2020-10-24 01:17:33,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:17:33,546 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 245 [2020-10-24 01:17:33,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:17:33,564 INFO L225 Difference]: With dead ends: 3708 [2020-10-24 01:17:33,565 INFO L226 Difference]: Without dead ends: 2263 [2020-10-24 01:17:33,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-24 01:17:33,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2020-10-24 01:17:34,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 1929. [2020-10-24 01:17:34,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1929 states. [2020-10-24 01:17:34,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2301 transitions. [2020-10-24 01:17:34,022 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2301 transitions. Word has length 245 [2020-10-24 01:17:34,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:17:34,022 INFO L481 AbstractCegarLoop]: Abstraction has 1929 states and 2301 transitions. [2020-10-24 01:17:34,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:17:34,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2301 transitions. [2020-10-24 01:17:34,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-24 01:17:34,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:17:34,033 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:17:34,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 01:17:34,033 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:17:34,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:17:34,034 INFO L82 PathProgramCache]: Analyzing trace with hash 65535787, now seen corresponding path program 1 times [2020-10-24 01:17:34,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:17:34,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622641389] [2020-10-24 01:17:34,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:17:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:34,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:17:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:34,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:17:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:34,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:17:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:34,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-24 01:17:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 82 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-24 01:17:34,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622641389] [2020-10-24 01:17:34,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:17:34,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:17:34,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752156432] [2020-10-24 01:17:34,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:17:34,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:17:34,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:17:34,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:17:34,385 INFO L87 Difference]: Start difference. First operand 1929 states and 2301 transitions. Second operand 7 states. [2020-10-24 01:17:34,607 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:17:37,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:17:37,446 INFO L93 Difference]: Finished difference Result 4251 states and 5319 transitions. [2020-10-24 01:17:37,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:17:37,447 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 256 [2020-10-24 01:17:37,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:17:37,468 INFO L225 Difference]: With dead ends: 4251 [2020-10-24 01:17:37,468 INFO L226 Difference]: Without dead ends: 2495 [2020-10-24 01:17:37,476 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 01:17:37,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2020-10-24 01:17:38,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 2264. [2020-10-24 01:17:38,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2264 states. [2020-10-24 01:17:38,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 2719 transitions. [2020-10-24 01:17:38,078 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 2719 transitions. Word has length 256 [2020-10-24 01:17:38,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:17:38,079 INFO L481 AbstractCegarLoop]: Abstraction has 2264 states and 2719 transitions. [2020-10-24 01:17:38,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:17:38,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 2719 transitions. [2020-10-24 01:17:38,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-10-24 01:17:38,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:17:38,091 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:17:38,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 01:17:38,091 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:17:38,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:17:38,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1687106550, now seen corresponding path program 1 times [2020-10-24 01:17:38,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:17:38,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232663478] [2020-10-24 01:17:38,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:17:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:38,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:17:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:38,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:17:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:38,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:17:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:38,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-24 01:17:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:38,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-24 01:17:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 124 proven. 28 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-24 01:17:38,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232663478] [2020-10-24 01:17:38,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:17:38,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 01:17:38,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91992573] [2020-10-24 01:17:38,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:17:38,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:17:38,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:17:38,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:17:38,491 INFO L87 Difference]: Start difference. First operand 2264 states and 2719 transitions. Second operand 10 states. [2020-10-24 01:17:38,716 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:17:38,962 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-24 01:17:39,247 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:17:39,909 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:17:40,339 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-10-24 01:17:41,511 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:17:41,862 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:17:42,733 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:17:46,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:17:46,383 INFO L93 Difference]: Finished difference Result 7420 states and 9263 transitions. [2020-10-24 01:17:46,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-24 01:17:46,388 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 281 [2020-10-24 01:17:46,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:17:46,422 INFO L225 Difference]: With dead ends: 7420 [2020-10-24 01:17:46,422 INFO L226 Difference]: Without dead ends: 5329 [2020-10-24 01:17:46,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2020-10-24 01:17:46,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5329 states. [2020-10-24 01:17:47,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5329 to 4567. [2020-10-24 01:17:47,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4567 states. [2020-10-24 01:17:47,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4567 states to 4567 states and 5396 transitions. [2020-10-24 01:17:47,641 INFO L78 Accepts]: Start accepts. Automaton has 4567 states and 5396 transitions. Word has length 281 [2020-10-24 01:17:47,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:17:47,642 INFO L481 AbstractCegarLoop]: Abstraction has 4567 states and 5396 transitions. [2020-10-24 01:17:47,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:17:47,642 INFO L276 IsEmpty]: Start isEmpty. Operand 4567 states and 5396 transitions. [2020-10-24 01:17:47,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-24 01:17:47,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:17:47,662 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, 1, 1, 1, 1, 1, 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 01:17:47,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 01:17:47,662 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:17:47,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:17:47,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1436516528, now seen corresponding path program 1 times [2020-10-24 01:17:47,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:17:47,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867345185] [2020-10-24 01:17:47,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:17:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:47,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:17:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:47,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:17:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:47,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:17:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:47,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-24 01:17:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:47,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-24 01:17:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:48,041 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 01:17:48,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867345185] [2020-10-24 01:17:48,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:17:48,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:17:48,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298021260] [2020-10-24 01:17:48,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:17:48,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:17:48,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:17:48,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:17:48,044 INFO L87 Difference]: Start difference. First operand 4567 states and 5396 transitions. Second operand 8 states. [2020-10-24 01:17:48,468 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:17:53,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:17:53,489 INFO L93 Difference]: Finished difference Result 10656 states and 12685 transitions. [2020-10-24 01:17:53,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-24 01:17:53,490 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 284 [2020-10-24 01:17:53,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:17:53,525 INFO L225 Difference]: With dead ends: 10656 [2020-10-24 01:17:53,525 INFO L226 Difference]: Without dead ends: 5408 [2020-10-24 01:17:53,546 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 01:17:53,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5408 states. [2020-10-24 01:17:54,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5408 to 4136. [2020-10-24 01:17:54,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4136 states. [2020-10-24 01:17:54,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4136 states to 4136 states and 4675 transitions. [2020-10-24 01:17:54,672 INFO L78 Accepts]: Start accepts. Automaton has 4136 states and 4675 transitions. Word has length 284 [2020-10-24 01:17:54,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:17:54,672 INFO L481 AbstractCegarLoop]: Abstraction has 4136 states and 4675 transitions. [2020-10-24 01:17:54,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:17:54,672 INFO L276 IsEmpty]: Start isEmpty. Operand 4136 states and 4675 transitions. [2020-10-24 01:17:54,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-24 01:17:54,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:17:54,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:54,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 01:17:54,690 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:17:54,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:17:54,690 INFO L82 PathProgramCache]: Analyzing trace with hash 396043215, now seen corresponding path program 1 times [2020-10-24 01:17:54,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:17:54,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975667830] [2020-10-24 01:17:54,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:17:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:54,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:17:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:54,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:17:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:54,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:17:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:54,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-24 01:17:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:54,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-24 01:17:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:17:55,067 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 120 proven. 40 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-24 01:17:55,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975667830] [2020-10-24 01:17:55,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:17:55,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:17:55,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32582666] [2020-10-24 01:17:55,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:17:55,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:17:55,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:17:55,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:17:55,070 INFO L87 Difference]: Start difference. First operand 4136 states and 4675 transitions. Second operand 8 states. [2020-10-24 01:17:56,859 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:17:59,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:17:59,440 INFO L93 Difference]: Finished difference Result 8508 states and 9627 transitions. [2020-10-24 01:17:59,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-24 01:17:59,447 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 295 [2020-10-24 01:17:59,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:17:59,477 INFO L225 Difference]: With dead ends: 8508 [2020-10-24 01:17:59,477 INFO L226 Difference]: Without dead ends: 4545 [2020-10-24 01:17:59,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-24 01:17:59,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4545 states. [2020-10-24 01:18:00,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4545 to 4466. [2020-10-24 01:18:00,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4466 states. [2020-10-24 01:18:00,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 5016 transitions. [2020-10-24 01:18:00,468 INFO L78 Accepts]: Start accepts. Automaton has 4466 states and 5016 transitions. Word has length 295 [2020-10-24 01:18:00,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:18:00,469 INFO L481 AbstractCegarLoop]: Abstraction has 4466 states and 5016 transitions. [2020-10-24 01:18:00,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:18:00,469 INFO L276 IsEmpty]: Start isEmpty. Operand 4466 states and 5016 transitions. [2020-10-24 01:18:00,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-10-24 01:18:00,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:18:00,484 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:00,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-24 01:18:00,484 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:18:00,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:18:00,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1465037508, now seen corresponding path program 1 times [2020-10-24 01:18:00,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:18:00,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545222061] [2020-10-24 01:18:00,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:18:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:00,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:18:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:00,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:18:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:00,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:18:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:00,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-24 01:18:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:01,374 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 124 proven. 33 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-10-24 01:18:01,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545222061] [2020-10-24 01:18:01,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:18:01,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-24 01:18:01,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985654186] [2020-10-24 01:18:01,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-24 01:18:01,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:18:01,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-24 01:18:01,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-10-24 01:18:01,385 INFO L87 Difference]: Start difference. First operand 4466 states and 5016 transitions. Second operand 15 states. [2020-10-24 01:18:01,684 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-24 01:18:02,127 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-24 01:18:03,111 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-24 01:18:04,095 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-10-24 01:18:05,186 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-24 01:18:05,605 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2020-10-24 01:18:06,492 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-24 01:18:07,328 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-24 01:18:07,642 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-24 01:18:08,448 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-24 01:18:08,814 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-10-24 01:18:10,095 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-24 01:18:11,618 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-24 01:18:12,847 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-24 01:18:13,271 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2020-10-24 01:18:15,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:18:15,835 INFO L93 Difference]: Finished difference Result 11295 states and 12936 transitions. [2020-10-24 01:18:15,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-10-24 01:18:15,836 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 311 [2020-10-24 01:18:15,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:18:15,870 INFO L225 Difference]: With dead ends: 11295 [2020-10-24 01:18:15,870 INFO L226 Difference]: Without dead ends: 6527 [2020-10-24 01:18:15,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 952 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=830, Invalid=2476, Unknown=0, NotChecked=0, Total=3306 [2020-10-24 01:18:15,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6527 states. [2020-10-24 01:18:17,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6527 to 6444. [2020-10-24 01:18:17,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6444 states. [2020-10-24 01:18:17,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6444 states to 6444 states and 7086 transitions. [2020-10-24 01:18:17,393 INFO L78 Accepts]: Start accepts. Automaton has 6444 states and 7086 transitions. Word has length 311 [2020-10-24 01:18:17,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:18:17,394 INFO L481 AbstractCegarLoop]: Abstraction has 6444 states and 7086 transitions. [2020-10-24 01:18:17,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-24 01:18:17,394 INFO L276 IsEmpty]: Start isEmpty. Operand 6444 states and 7086 transitions. [2020-10-24 01:18:17,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-24 01:18:17,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:18:17,414 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, 1, 1, 1, 1, 1, 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 01:18:17,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-24 01:18:17,414 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:18:17,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:18:17,415 INFO L82 PathProgramCache]: Analyzing trace with hash -2078835029, now seen corresponding path program 1 times [2020-10-24 01:18:17,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:18:17,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230110400] [2020-10-24 01:18:17,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:18:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:17,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:18:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:17,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:18:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:17,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 01:18:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:17,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-24 01:18:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:17,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-24 01:18:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:17,879 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 01:18:17,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230110400] [2020-10-24 01:18:17,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:18:17,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 01:18:17,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366610023] [2020-10-24 01:18:17,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:18:17,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:18:17,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:18:17,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:18:17,881 INFO L87 Difference]: Start difference. First operand 6444 states and 7086 transitions. Second operand 10 states. [2020-10-24 01:18:18,206 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:18:19,358 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-24 01:18:19,585 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:18:19,737 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:18:21,079 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:18:23,107 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:18:25,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:18:25,727 INFO L93 Difference]: Finished difference Result 14750 states and 16335 transitions. [2020-10-24 01:18:25,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-24 01:18:25,728 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 328 [2020-10-24 01:18:25,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:18:25,765 INFO L225 Difference]: With dead ends: 14750 [2020-10-24 01:18:25,765 INFO L226 Difference]: Without dead ends: 8335 [2020-10-24 01:18:25,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2020-10-24 01:18:25,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8335 states. [2020-10-24 01:18:27,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8335 to 7944. [2020-10-24 01:18:27,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7944 states. [2020-10-24 01:18:27,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7944 states to 7944 states and 8579 transitions. [2020-10-24 01:18:27,584 INFO L78 Accepts]: Start accepts. Automaton has 7944 states and 8579 transitions. Word has length 328 [2020-10-24 01:18:27,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:18:27,585 INFO L481 AbstractCegarLoop]: Abstraction has 7944 states and 8579 transitions. [2020-10-24 01:18:27,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:18:27,585 INFO L276 IsEmpty]: Start isEmpty. Operand 7944 states and 8579 transitions. [2020-10-24 01:18:27,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2020-10-24 01:18:27,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:18:27,609 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:27,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-24 01:18:27,609 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:18:27,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:18:27,610 INFO L82 PathProgramCache]: Analyzing trace with hash 566248431, now seen corresponding path program 1 times [2020-10-24 01:18:27,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:18:27,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068278193] [2020-10-24 01:18:27,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:18:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:27,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:18:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:27,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:18:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:27,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 01:18:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:27,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-24 01:18:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:27,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-24 01:18:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:27,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-24 01:18:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:28,060 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 258 proven. 80 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-10-24 01:18:28,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068278193] [2020-10-24 01:18:28,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:18:28,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:18:28,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125685860] [2020-10-24 01:18:28,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:18:28,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:18:28,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:18:28,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:18:28,062 INFO L87 Difference]: Start difference. First operand 7944 states and 8579 transitions. Second operand 7 states. [2020-10-24 01:18:31,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:18:31,906 INFO L93 Difference]: Finished difference Result 15827 states and 17085 transitions. [2020-10-24 01:18:31,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 01:18:31,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 399 [2020-10-24 01:18:31,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:18:31,922 INFO L225 Difference]: With dead ends: 15827 [2020-10-24 01:18:31,923 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 01:18:31,958 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 01:18:31,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 01:18:31,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 01:18:31,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 01:18:31,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 01:18:31,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 399 [2020-10-24 01:18:31,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:18:31,959 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 01:18:31,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:18:31,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 01:18:31,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 01:18:31,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-24 01:18:31,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 01:18:32,535 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-24 01:18:57,499 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 241 [2020-10-24 01:19:24,652 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 241 [2020-10-24 01:19:26,256 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 241 [2020-10-24 01:19:26,448 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 241 [2020-10-24 01:19:41,031 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 241 [2020-10-24 01:20:47,827 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 241 [2020-10-24 01:21:29,967 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 241 [2020-10-24 01:21:30,169 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 241 [2020-10-24 01:21:30,367 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 241 [2020-10-24 01:21:32,658 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 241 [2020-10-24 01:21:41,099 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 222 DAG size of output: 73 [2020-10-24 01:21:44,187 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:21:47,162 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 324 DAG size of output: 84 [2020-10-24 01:21:50,227 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:21:51,365 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 225 DAG size of output: 72 [2020-10-24 01:21:52,482 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 222 DAG size of output: 73 [2020-10-24 01:21:53,596 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 222 DAG size of output: 73 [2020-10-24 01:21:56,657 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:21:57,790 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 224 DAG size of output: 80 [2020-10-24 01:22:00,832 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:22:02,055 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 233 DAG size of output: 77 [2020-10-24 01:22:03,277 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 229 DAG size of output: 76 [2020-10-24 01:22:04,230 WARN L193 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 71 [2020-10-24 01:22:05,460 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 182 DAG size of output: 74 [2020-10-24 01:22:06,394 WARN L193 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 68 [2020-10-24 01:22:07,469 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 178 DAG size of output: 73 [2020-10-24 01:22:10,661 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:22:12,920 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 253 DAG size of output: 80 [2020-10-24 01:22:14,465 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 232 DAG size of output: 77 [2020-10-24 01:22:17,487 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:22:20,481 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:22:21,409 WARN L193 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 68 [2020-10-24 01:22:22,324 WARN L193 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 71 [2020-10-24 01:22:23,717 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2020-10-24 01:22:24,949 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 225 DAG size of output: 73 [2020-10-24 01:22:25,792 WARN L193 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 69 [2020-10-24 01:22:28,804 WARN L193 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:22:29,900 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 224 DAG size of output: 80 [2020-10-24 01:22:30,857 WARN L193 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 70 [2020-10-24 01:22:32,547 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 253 DAG size of output: 79 [2020-10-24 01:22:33,473 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 68 [2020-10-24 01:22:34,847 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 188 DAG size of output: 75 [2020-10-24 01:22:37,851 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:22:39,016 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 229 DAG size of output: 76 [2020-10-24 01:22:42,023 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:22:42,944 WARN L193 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 71 [2020-10-24 01:22:43,836 WARN L193 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2020-10-24 01:22:44,765 WARN L193 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 70 [2020-10-24 01:22:47,809 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:22:48,947 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 180 DAG size of output: 72 [2020-10-24 01:22:49,859 WARN L193 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 68 [2020-10-24 01:22:50,785 WARN L193 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 70 [2020-10-24 01:22:51,913 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 179 DAG size of output: 78 [2020-10-24 01:22:53,703 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 197 DAG size of output: 84 [2020-10-24 01:22:54,590 WARN L193 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 66 [2020-10-24 01:22:55,482 WARN L193 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 66 [2020-10-24 01:22:58,511 WARN L193 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:22:59,767 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 186 DAG size of output: 79 [2020-10-24 01:23:00,991 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 226 DAG size of output: 73 [2020-10-24 01:23:02,412 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 188 DAG size of output: 75 [2020-10-24 01:23:03,380 WARN L193 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 72 [2020-10-24 01:23:04,327 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 68 [2020-10-24 01:23:05,689 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 243 DAG size of output: 80 [2020-10-24 01:23:06,529 WARN L193 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 66 [2020-10-24 01:23:07,687 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 233 DAG size of output: 77 [2020-10-24 01:23:08,625 WARN L193 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 70 [2020-10-24 01:23:09,780 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 179 DAG size of output: 78 [2020-10-24 01:23:12,803 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:23:13,720 WARN L193 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 71 [2020-10-24 01:23:14,939 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 211 DAG size of output: 64 [2020-10-24 01:23:16,014 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 222 DAG size of output: 73 [2020-10-24 01:23:16,852 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 69 [2020-10-24 01:23:17,701 WARN L193 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 69 [2020-10-24 01:23:20,728 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:23:21,808 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 224 DAG size of output: 80 [2020-10-24 01:23:24,732 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:23:27,601 WARN L193 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 324 DAG size of output: 84 [2020-10-24 01:23:30,542 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:23:31,612 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 222 DAG size of output: 73 [2020-10-24 01:23:32,720 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 225 DAG size of output: 72 [2020-10-24 01:23:33,790 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 222 DAG size of output: 73 [2020-10-24 01:23:36,726 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:23:39,774 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:23:40,631 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 69 [2020-10-24 01:23:42,684 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 195 DAG size of output: 81 [2020-10-24 01:23:45,746 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:23:46,703 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 68 [2020-10-24 01:23:48,182 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 242 DAG size of output: 78 [2020-10-24 01:23:49,413 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 182 DAG size of output: 74 [2020-10-24 01:23:50,406 WARN L193 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 76 [2020-10-24 01:23:51,420 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 176 DAG size of output: 71 [2020-10-24 01:23:53,597 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 239 DAG size of output: 80 [2020-10-24 01:23:55,673 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 257 DAG size of output: 81 [2020-10-24 01:23:56,622 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 70 [2020-10-24 01:23:57,799 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 232 DAG size of output: 72 [2020-10-24 01:23:58,940 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 178 DAG size of output: 71 [2020-10-24 01:24:02,018 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:24:03,272 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 186 DAG size of output: 84 [2020-10-24 01:24:04,416 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 176 DAG size of output: 68 [2020-10-24 01:24:05,271 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 68 [2020-10-24 01:24:06,728 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 183 DAG size of output: 82 [2020-10-24 01:24:07,739 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 178 DAG size of output: 73 [2020-10-24 01:24:08,838 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 224 DAG size of output: 80 [2020-10-24 01:24:09,702 WARN L193 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 69 [2020-10-24 01:24:12,780 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:24:15,855 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:24:16,937 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 222 DAG size of output: 73 [2020-10-24 01:24:19,909 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:24:22,828 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 324 DAG size of output: 84 [2020-10-24 01:24:25,813 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:24:26,936 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 225 DAG size of output: 72 [2020-10-24 01:24:28,459 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 179 DAG size of output: 78 [2020-10-24 01:24:30,623 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 195 DAG size of output: 81 [2020-10-24 01:24:33,704 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:24:34,664 WARN L193 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 70 [2020-10-24 01:24:35,549 WARN L193 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 72 [2020-10-24 01:24:36,553 WARN L193 SmtUtils]: Spent 994.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 73 [2020-10-24 01:24:39,343 WARN L193 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 249 DAG size of output: 83 [2020-10-24 01:24:40,913 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 232 DAG size of output: 77 [2020-10-24 01:24:41,966 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 195 DAG size of output: 78 [2020-10-24 01:24:43,987 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 210 DAG size of output: 81 [2020-10-24 01:24:44,963 WARN L193 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 73 [2020-10-24 01:24:45,944 WARN L193 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 68 [2020-10-24 01:24:47,364 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 193 DAG size of output: 77 [2020-10-24 01:24:50,465 WARN L193 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:24:51,648 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 233 DAG size of output: 77 [2020-10-24 01:24:54,762 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:24:55,816 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 177 DAG size of output: 71 [2020-10-24 01:24:56,935 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 224 DAG size of output: 80 [2020-10-24 01:24:58,037 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 222 DAG size of output: 73 [2020-10-24 01:25:01,057 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:25:02,348 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 224 DAG size of output: 71 [2020-10-24 01:25:03,962 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 187 DAG size of output: 81 [2020-10-24 01:25:07,095 WARN L193 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:25:08,063 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 74 [2020-10-24 01:25:09,026 WARN L193 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 73 [2020-10-24 01:25:09,994 WARN L193 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 72 [2020-10-24 01:25:11,271 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 187 DAG size of output: 80 [2020-10-24 01:25:12,482 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 177 DAG size of output: 73 [2020-10-24 01:25:13,467 WARN L193 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 70 [2020-10-24 01:25:16,593 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:25:17,753 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 224 DAG size of output: 70 [2020-10-24 01:25:18,750 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 72 [2020-10-24 01:25:19,814 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 177 DAG size of output: 70 [2020-10-24 01:25:20,799 WARN L193 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 70 [2020-10-24 01:25:21,751 WARN L193 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 68 [2020-10-24 01:25:22,801 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 223 DAG size of output: 74 [2020-10-24 01:25:24,014 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 177 DAG size of output: 73 [2020-10-24 01:25:25,621 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 189 DAG size of output: 84 [2020-10-24 01:25:26,975 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 184 DAG size of output: 68 [2020-10-24 01:25:28,991 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 200 DAG size of output: 85 [2020-10-24 01:25:30,664 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 244 DAG size of output: 82 [2020-10-24 01:25:31,896 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 179 DAG size of output: 74 [2020-10-24 01:25:32,936 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 175 DAG size of output: 69 [2020-10-24 01:25:33,952 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 178 DAG size of output: 73 [2020-10-24 01:25:35,855 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 195 DAG size of output: 81 [2020-10-24 01:25:37,034 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 176 DAG size of output: 68 [2020-10-24 01:25:38,171 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 224 DAG size of output: 80 [2020-10-24 01:25:39,440 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 211 DAG size of output: 64 [2020-10-24 01:25:42,467 WARN L193 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:25:45,516 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:25:46,786 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 211 DAG size of output: 64 [2020-10-24 01:25:48,066 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 211 DAG size of output: 64 [2020-10-24 01:25:49,214 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 225 DAG size of output: 72 [2020-10-24 01:25:50,185 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 72 [2020-10-24 01:25:53,348 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:25:54,559 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 179 DAG size of output: 73 [2020-10-24 01:25:55,799 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 195 DAG size of output: 75 [2020-10-24 01:25:57,237 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2020-10-24 01:26:00,210 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 324 DAG size of output: 84 [2020-10-24 01:26:03,352 WARN L193 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:26:04,985 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 235 DAG size of output: 76 [2020-10-24 01:26:05,976 WARN L193 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 73 [2020-10-24 01:26:08,974 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 324 DAG size of output: 84 [2020-10-24 01:26:10,103 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 224 DAG size of output: 80 [2020-10-24 01:26:11,256 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 225 DAG size of output: 72 [2020-10-24 01:26:12,415 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 225 DAG size of output: 72 [2020-10-24 01:26:15,483 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:26:16,624 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 224 DAG size of output: 80 [2020-10-24 01:26:17,742 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 222 DAG size of output: 73 [2020-10-24 01:26:20,793 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:26:21,911 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 222 DAG size of output: 73 [2020-10-24 01:26:24,970 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:26:26,084 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 222 DAG size of output: 73 [2020-10-24 01:26:27,083 WARN L193 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 68 [2020-10-24 01:26:28,277 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 177 DAG size of output: 70 [2020-10-24 01:26:29,244 WARN L193 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 71 [2020-10-24 01:26:32,408 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:26:34,045 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 235 DAG size of output: 76 [2020-10-24 01:26:37,225 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:26:38,438 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 180 DAG size of output: 72 [2020-10-24 01:26:39,418 WARN L193 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 73 [2020-10-24 01:26:40,577 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 225 DAG size of output: 72 [2020-10-24 01:26:43,566 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 324 DAG size of output: 84 [2020-10-24 01:26:46,755 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:26:47,716 WARN L193 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 69 [2020-10-24 01:26:49,160 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2020-10-24 01:26:52,233 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:26:53,364 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 222 DAG size of output: 73 [2020-10-24 01:26:54,708 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 211 DAG size of output: 64 [2020-10-24 01:26:55,707 WARN L193 SmtUtils]: Spent 951.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 71 [2020-10-24 01:26:57,472 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 250 DAG size of output: 79 [2020-10-24 01:26:58,664 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 177 DAG size of output: 68 [2020-10-24 01:26:59,665 WARN L193 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 71 [2020-10-24 01:27:02,862 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:27:06,066 WARN L193 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:27:07,080 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 178 DAG size of output: 74 [2020-10-24 01:27:08,153 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 187 DAG size of output: 77 [2020-10-24 01:27:09,119 WARN L193 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 69 [2020-10-24 01:27:10,088 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 71 [2020-10-24 01:27:11,309 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 175 DAG size of output: 71 [2020-10-24 01:27:12,273 WARN L193 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 70 [2020-10-24 01:27:13,936 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 235 DAG size of output: 76 [2020-10-24 01:27:14,925 WARN L193 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 67 [2020-10-24 01:27:15,937 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 177 DAG size of output: 71 [2020-10-24 01:27:16,914 WARN L193 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 68 [2020-10-24 01:27:18,170 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 175 DAG size of output: 71 [2020-10-24 01:27:19,872 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2020-10-24 01:27:23,364 WARN L193 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:27:25,622 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 206 DAG size of output: 83 [2020-10-24 01:27:27,936 WARN L193 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 189 DAG size of output: 82 [2020-10-24 01:27:29,029 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2020-10-24 01:27:30,614 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 180 DAG size of output: 71 [2020-10-24 01:27:34,072 WARN L193 SmtUtils]: Spent 3.44 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:27:35,194 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 174 DAG size of output: 69 [2020-10-24 01:27:38,603 WARN L193 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:27:40,613 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 186 DAG size of output: 79 [2020-10-24 01:27:41,943 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 192 DAG size of output: 74 [2020-10-24 01:27:42,953 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2020-10-24 01:27:46,324 WARN L193 SmtUtils]: Spent 3.36 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:27:47,311 WARN L193 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 70 [2020-10-24 01:27:50,195 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 268 DAG size of output: 90 [2020-10-24 01:27:51,269 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 176 DAG size of output: 71 [2020-10-24 01:27:52,613 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 185 DAG size of output: 76 [2020-10-24 01:27:54,205 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 227 DAG size of output: 78 [2020-10-24 01:27:55,288 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 180 DAG size of output: 71 [2020-10-24 01:27:58,767 WARN L193 SmtUtils]: Spent 3.47 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:27:59,791 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 174 DAG size of output: 68 [2020-10-24 01:28:03,191 WARN L193 SmtUtils]: Spent 3.39 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:28:04,868 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 189 DAG size of output: 78 [2020-10-24 01:28:05,975 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 174 DAG size of output: 72 [2020-10-24 01:28:07,285 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 232 DAG size of output: 72 [2020-10-24 01:28:08,339 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 176 DAG size of output: 71 [2020-10-24 01:28:11,643 WARN L193 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:28:12,906 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 225 DAG size of output: 72 [2020-10-24 01:28:14,128 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 224 DAG size of output: 80 [2020-10-24 01:28:15,351 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 224 DAG size of output: 80 [2020-10-24 01:28:18,620 WARN L193 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:28:19,851 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 224 DAG size of output: 80 [2020-10-24 01:28:23,105 WARN L193 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 323 DAG size of output: 85 [2020-10-24 01:28:26,491 WARN L193 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:28:27,506 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 176 DAG size of output: 71 [2020-10-24 01:28:30,884 WARN L193 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:28:32,346 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 187 DAG size of output: 82 [2020-10-24 01:28:33,420 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 176 DAG size of output: 70 [2020-10-24 01:28:36,780 WARN L193 SmtUtils]: Spent 3.35 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:28:38,129 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 226 DAG size of output: 76 [2020-10-24 01:28:39,164 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 174 DAG size of output: 68 [2020-10-24 01:28:40,191 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 224 DAG size of output: 71 [2020-10-24 01:28:43,575 WARN L193 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:28:44,603 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 175 DAG size of output: 71 [2020-10-24 01:28:47,990 WARN L193 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:28:49,232 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 224 DAG size of output: 80 [2020-10-24 01:28:52,443 WARN L193 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 324 DAG size of output: 84 [2020-10-24 01:28:55,842 WARN L193 SmtUtils]: Spent 3.39 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:28:57,419 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2020-10-24 01:28:58,443 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2020-10-24 01:28:59,537 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 180 DAG size of output: 71 [2020-10-24 01:29:02,922 WARN L193 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:29:04,048 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 224 DAG size of output: 71 [2020-10-24 01:29:07,428 WARN L193 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:29:08,491 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 176 DAG size of output: 69 [2020-10-24 01:29:09,670 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 224 DAG size of output: 74 [2020-10-24 01:29:12,970 WARN L193 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:29:14,650 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 235 DAG size of output: 76 [2020-10-24 01:29:16,379 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 197 DAG size of output: 81 [2020-10-24 01:29:17,473 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 176 DAG size of output: 71 [2020-10-24 01:29:18,514 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 178 DAG size of output: 74 [2020-10-24 01:29:21,762 WARN L193 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:29:25,039 WARN L193 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:29:26,014 WARN L193 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 69 [2020-10-24 01:29:27,051 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 176 DAG size of output: 70 [2020-10-24 01:29:30,129 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 324 DAG size of output: 84 [2020-10-24 01:29:33,393 WARN L193 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:29:35,179 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 224 DAG size of output: 77 [2020-10-24 01:29:37,454 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 262 DAG size of output: 82 [2020-10-24 01:29:40,719 WARN L193 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:29:41,970 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 186 DAG size of output: 80 [2020-10-24 01:29:43,792 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-10-24 01:29:45,397 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 233 DAG size of output: 71 [2020-10-24 01:29:47,241 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 253 DAG size of output: 79 [2020-10-24 01:29:50,484 WARN L193 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:29:53,753 WARN L193 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:29:56,092 WARN L193 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 258 DAG size of output: 88 [2020-10-24 01:29:57,373 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 182 DAG size of output: 80 [2020-10-24 01:30:00,640 WARN L193 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:30:01,671 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 177 DAG size of output: 69 [2020-10-24 01:30:05,000 WARN L193 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:30:05,911 WARN L193 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 69 [2020-10-24 01:30:07,262 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 187 DAG size of output: 80 [2020-10-24 01:30:09,064 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 189 DAG size of output: 81 [2020-10-24 01:30:09,981 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 69 [2020-10-24 01:30:10,990 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 69 [2020-10-24 01:30:14,265 WARN L193 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 329 DAG size of output: 85 [2020-10-24 01:30:15,515 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 233 DAG size of output: 77 [2020-10-24 01:30:16,841 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 226 DAG size of output: 73 [2020-10-24 01:30:18,849 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 183 DAG size of output: 75 [2020-10-24 01:30:20,131 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 177 DAG size of output: 73 [2020-10-24 01:30:21,068 WARN L193 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 69