/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_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:17:58,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:17:58,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:17:58,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 01:17:58,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:17:58,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:17:58,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:17:58,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:17:58,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:17:58,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:17:58,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:17:58,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:17:58,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:17:58,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:17:58,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:17:58,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:17:58,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 01:17:58,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 01:17:58,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 01:17:58,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 01:17:58,198 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 01:17:58,210 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:17:58,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:17:58,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:17:58,212 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:17:58,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:17:58,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:17:58,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:17:58,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:17:58,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:17:58,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:17:58,214 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:17:58,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:17:58,214 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:17:58,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:17:58,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:17:58,215 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:17:58,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:17:58,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:17:58,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:17:58,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:17:58,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:17:58,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:17:58,216 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:17:58,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:17:58,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:17:58,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:17:58,622 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:17:58,622 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:17:58,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-10-24 01:17:58,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0d94ede/cb67e548e0fe4add8fb436d6cf8d17fe/FLAG84ecdbd8e [2020-10-24 01:17:59,456 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:17:59,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-10-24 01:17:59,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0d94ede/cb67e548e0fe4add8fb436d6cf8d17fe/FLAG84ecdbd8e [2020-10-24 01:17:59,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0d94ede/cb67e548e0fe4add8fb436d6cf8d17fe [2020-10-24 01:17:59,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:17:59,653 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:17:59,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:17:59,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:17:59,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:17:59,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:17:59" (1/1) ... [2020-10-24 01:17:59,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@101aeede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:59, skipping insertion in model container [2020-10-24 01:17:59,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:17:59" (1/1) ... [2020-10-24 01:17:59,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:17:59,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:18:00,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:18:00,213 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:18:00,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:18:00,439 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:18:00,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:00 WrapperNode [2020-10-24 01:18:00,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:18:00,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:18:00,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:18:00,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:18:00,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:00" (1/1) ... [2020-10-24 01:18:00,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:00" (1/1) ... [2020-10-24 01:18:00,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:00" (1/1) ... [2020-10-24 01:18:00,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:00" (1/1) ... [2020-10-24 01:18:00,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:00" (1/1) ... [2020-10-24 01:18:00,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:00" (1/1) ... [2020-10-24 01:18:00,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:00" (1/1) ... [2020-10-24 01:18:00,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:18:00,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:18:00,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:18:00,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:18:00,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:00" (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 01:18:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:18:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:18:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:18:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-24 01:18:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:18:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-24 01:18:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:18:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:18:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:18:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:18:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 01:18:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-24 01:18:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:18:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:18:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:18:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:18:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:18:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:18:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:18:02,045 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:18:02,045 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-24 01:18:02,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:18:02 BoogieIcfgContainer [2020-10-24 01:18:02,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:18:02,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:18:02,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:18:02,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:18:02,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:17:59" (1/3) ... [2020-10-24 01:18:02,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598d7016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:18:02, skipping insertion in model container [2020-10-24 01:18:02,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:18:00" (2/3) ... [2020-10-24 01:18:02,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598d7016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:18:02, skipping insertion in model container [2020-10-24 01:18:02,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:18:02" (3/3) ... [2020-10-24 01:18:02,057 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label41.c [2020-10-24 01:18:02,069 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:18:02,075 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:18:02,088 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:18:02,113 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:18:02,114 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:18:02,114 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:18:02,114 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:18:02,114 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:18:02,114 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:18:02,115 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:18:02,115 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:18:02,143 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states. [2020-10-24 01:18:02,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-24 01:18:02,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:18:02,167 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] [2020-10-24 01:18:02,168 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:18:02,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:18:02,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1216423464, now seen corresponding path program 1 times [2020-10-24 01:18:02,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:18:02,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [467901951] [2020-10-24 01:18:02,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:18:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:02,798 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-24 01:18:02,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:18:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:02,921 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 01:18:02,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [467901951] [2020-10-24 01:18:02,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:18:02,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 01:18:02,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918504058] [2020-10-24 01:18:02,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 01:18:02,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:18:02,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 01:18:02,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 01:18:02,959 INFO L87 Difference]: Start difference. First operand 537 states. Second operand 4 states. [2020-10-24 01:18:05,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:18:05,872 INFO L93 Difference]: Finished difference Result 1248 states and 1647 transitions. [2020-10-24 01:18:05,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 01:18:05,874 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2020-10-24 01:18:05,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:18:05,916 INFO L225 Difference]: With dead ends: 1248 [2020-10-24 01:18:05,916 INFO L226 Difference]: Without dead ends: 670 [2020-10-24 01:18:05,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:18:05,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2020-10-24 01:18:06,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 614. [2020-10-24 01:18:06,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2020-10-24 01:18:06,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 724 transitions. [2020-10-24 01:18:06,152 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 724 transitions. Word has length 122 [2020-10-24 01:18:06,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:18:06,155 INFO L481 AbstractCegarLoop]: Abstraction has 614 states and 724 transitions. [2020-10-24 01:18:06,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 01:18:06,155 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 724 transitions. [2020-10-24 01:18:06,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-24 01:18:06,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:18:06,173 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-24 01:18:06,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:18:06,176 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:18:06,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:18:06,177 INFO L82 PathProgramCache]: Analyzing trace with hash -2003634840, now seen corresponding path program 1 times [2020-10-24 01:18:06,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:18:06,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017924106] [2020-10-24 01:18:06,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:18:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:06,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:18:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:06,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:18:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:06,558 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:18:06,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017924106] [2020-10-24 01:18:06,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:18:06,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-24 01:18:06,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092327817] [2020-10-24 01:18:06,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 01:18:06,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:18:06,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 01:18:06,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:18:06,564 INFO L87 Difference]: Start difference. First operand 614 states and 724 transitions. Second operand 5 states. [2020-10-24 01:18:09,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:18:09,087 INFO L93 Difference]: Finished difference Result 1534 states and 1885 transitions. [2020-10-24 01:18:09,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 01:18:09,088 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2020-10-24 01:18:09,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:18:09,106 INFO L225 Difference]: With dead ends: 1534 [2020-10-24 01:18:09,107 INFO L226 Difference]: Without dead ends: 952 [2020-10-24 01:18:09,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 01:18:09,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2020-10-24 01:18:09,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 900. [2020-10-24 01:18:09,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2020-10-24 01:18:09,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1081 transitions. [2020-10-24 01:18:09,339 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1081 transitions. Word has length 139 [2020-10-24 01:18:09,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:18:09,343 INFO L481 AbstractCegarLoop]: Abstraction has 900 states and 1081 transitions. [2020-10-24 01:18:09,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 01:18:09,343 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1081 transitions. [2020-10-24 01:18:09,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-24 01:18:09,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:18:09,351 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-24 01:18:09,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 01:18:09,351 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:18:09,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:18:09,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1569593519, now seen corresponding path program 1 times [2020-10-24 01:18:09,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:18:09,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407449892] [2020-10-24 01:18:09,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:18:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:09,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:18:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:09,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:18:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:18:09,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407449892] [2020-10-24 01:18:09,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:18:09,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-24 01:18:09,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303755094] [2020-10-24 01:18:09,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:18:09,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:18:09,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:18:09,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:18:09,725 INFO L87 Difference]: Start difference. First operand 900 states and 1081 transitions. Second operand 8 states. [2020-10-24 01:18:09,938 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:18:13,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:18:13,804 INFO L93 Difference]: Finished difference Result 2854 states and 3677 transitions. [2020-10-24 01:18:13,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-24 01:18:13,812 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 144 [2020-10-24 01:18:13,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:18:13,834 INFO L225 Difference]: With dead ends: 2854 [2020-10-24 01:18:13,834 INFO L226 Difference]: Without dead ends: 1986 [2020-10-24 01:18:13,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-24 01:18:13,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2020-10-24 01:18:14,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1488. [2020-10-24 01:18:14,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1488 states. [2020-10-24 01:18:14,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1817 transitions. [2020-10-24 01:18:14,261 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1817 transitions. Word has length 144 [2020-10-24 01:18:14,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:18:14,262 INFO L481 AbstractCegarLoop]: Abstraction has 1488 states and 1817 transitions. [2020-10-24 01:18:14,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:18:14,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1817 transitions. [2020-10-24 01:18:14,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-24 01:18:14,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:18:14,271 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:14,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 01:18:14,271 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:18:14,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:18:14,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1029785603, now seen corresponding path program 1 times [2020-10-24 01:18:14,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:18:14,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288757546] [2020-10-24 01:18:14,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:18:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:14,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:18:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:14,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:18:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:14,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-24 01:18:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:14,579 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-24 01:18:14,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [288757546] [2020-10-24 01:18:14,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:18:14,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:18:14,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375821273] [2020-10-24 01:18:14,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:18:14,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:18:14,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:18:14,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:18:14,582 INFO L87 Difference]: Start difference. First operand 1488 states and 1817 transitions. Second operand 7 states. [2020-10-24 01:18:14,777 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:18:17,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:18:17,629 INFO L93 Difference]: Finished difference Result 3354 states and 4236 transitions. [2020-10-24 01:18:17,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:18:17,630 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 184 [2020-10-24 01:18:17,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:18:17,652 INFO L225 Difference]: With dead ends: 3354 [2020-10-24 01:18:17,652 INFO L226 Difference]: Without dead ends: 1898 [2020-10-24 01:18:17,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 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 01:18:17,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2020-10-24 01:18:18,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1668. [2020-10-24 01:18:18,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1668 states. [2020-10-24 01:18:18,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2046 transitions. [2020-10-24 01:18:18,044 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2046 transitions. Word has length 184 [2020-10-24 01:18:18,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:18:18,044 INFO L481 AbstractCegarLoop]: Abstraction has 1668 states and 2046 transitions. [2020-10-24 01:18:18,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:18:18,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2046 transitions. [2020-10-24 01:18:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-24 01:18:18,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:18:18,055 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:18:18,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 01:18:18,055 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:18:18,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:18:18,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1925039906, now seen corresponding path program 1 times [2020-10-24 01:18:18,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:18:18,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505296633] [2020-10-24 01:18:18,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:18:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:18,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:18:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:18,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:18:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:18,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:18:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:18,444 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-24 01:18:18,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505296633] [2020-10-24 01:18:18,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:18:18,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:18:18,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103556905] [2020-10-24 01:18:18,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:18:18,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:18:18,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:18:18,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:18:18,446 INFO L87 Difference]: Start difference. First operand 1668 states and 2046 transitions. Second operand 7 states. [2020-10-24 01:18:18,672 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 01:18:21,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:18:21,804 INFO L93 Difference]: Finished difference Result 4240 states and 5368 transitions. [2020-10-24 01:18:21,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:18:21,806 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-10-24 01:18:21,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:18:21,830 INFO L225 Difference]: With dead ends: 4240 [2020-10-24 01:18:21,831 INFO L226 Difference]: Without dead ends: 2604 [2020-10-24 01:18:21,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 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 01:18:21,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2020-10-24 01:18:22,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2335. [2020-10-24 01:18:22,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2335 states. [2020-10-24 01:18:22,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 2864 transitions. [2020-10-24 01:18:22,402 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 2864 transitions. Word has length 206 [2020-10-24 01:18:22,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:18:22,402 INFO L481 AbstractCegarLoop]: Abstraction has 2335 states and 2864 transitions. [2020-10-24 01:18:22,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:18:22,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 2864 transitions. [2020-10-24 01:18:22,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-24 01:18:22,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:18:22,415 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:22,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 01:18:22,415 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:18:22,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:18:22,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1500415135, now seen corresponding path program 1 times [2020-10-24 01:18:22,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:18:22,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116049684] [2020-10-24 01:18:22,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:18:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:22,606 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-24 01:18:22,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:18:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:22,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:18:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:22,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-24 01:18:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:22,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-24 01:18:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:22,763 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 102 proven. 14 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-24 01:18:22,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116049684] [2020-10-24 01:18:22,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:18:22,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:18:22,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420888745] [2020-10-24 01:18:22,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:18:22,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:18:22,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:18:22,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:18:22,766 INFO L87 Difference]: Start difference. First operand 2335 states and 2864 transitions. Second operand 8 states. [2020-10-24 01:18:23,170 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:18:27,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:18:27,714 INFO L93 Difference]: Finished difference Result 5919 states and 7356 transitions. [2020-10-24 01:18:27,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-24 01:18:27,720 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 229 [2020-10-24 01:18:27,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:18:27,744 INFO L225 Difference]: With dead ends: 5919 [2020-10-24 01:18:27,744 INFO L226 Difference]: Without dead ends: 3185 [2020-10-24 01:18:27,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 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 01:18:27,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2020-10-24 01:18:28,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3177. [2020-10-24 01:18:28,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3177 states. [2020-10-24 01:18:28,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 3723 transitions. [2020-10-24 01:18:28,483 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 3723 transitions. Word has length 229 [2020-10-24 01:18:28,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:18:28,483 INFO L481 AbstractCegarLoop]: Abstraction has 3177 states and 3723 transitions. [2020-10-24 01:18:28,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:18:28,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 3723 transitions. [2020-10-24 01:18:28,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-24 01:18:28,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:18:28,496 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:18:28,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 01:18:28,497 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:18:28,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:18:28,497 INFO L82 PathProgramCache]: Analyzing trace with hash -371762547, now seen corresponding path program 1 times [2020-10-24 01:18:28,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:18:28,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067815329] [2020-10-24 01:18:28,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:18:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:28,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:18:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:28,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:18:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:28,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-24 01:18:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:28,891 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 93 proven. 28 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-24 01:18:28,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067815329] [2020-10-24 01:18:28,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:18:28,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:18:28,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064134391] [2020-10-24 01:18:28,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:18:28,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:18:28,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:18:28,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:18:28,896 INFO L87 Difference]: Start difference. First operand 3177 states and 3723 transitions. Second operand 8 states. [2020-10-24 01:18:29,629 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:18:32,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:18:32,958 INFO L93 Difference]: Finished difference Result 6386 states and 7510 transitions. [2020-10-24 01:18:32,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-24 01:18:32,958 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 232 [2020-10-24 01:18:32,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:18:32,982 INFO L225 Difference]: With dead ends: 6386 [2020-10-24 01:18:32,982 INFO L226 Difference]: Without dead ends: 3382 [2020-10-24 01:18:32,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-10-24 01:18:32,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3382 states. [2020-10-24 01:18:33,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3382 to 2339. [2020-10-24 01:18:33,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2339 states. [2020-10-24 01:18:33,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 2693 transitions. [2020-10-24 01:18:33,616 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 2693 transitions. Word has length 232 [2020-10-24 01:18:33,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:18:33,617 INFO L481 AbstractCegarLoop]: Abstraction has 2339 states and 2693 transitions. [2020-10-24 01:18:33,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:18:33,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 2693 transitions. [2020-10-24 01:18:33,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-24 01:18:33,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:18:33,627 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:18:33,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-24 01:18:33,628 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:18:33,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:18:33,628 INFO L82 PathProgramCache]: Analyzing trace with hash 669334045, now seen corresponding path program 1 times [2020-10-24 01:18:33,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:18:33,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2090355406] [2020-10-24 01:18:33,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:18:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:33,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:18:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:33,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:18:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:33,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:18:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:33,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-24 01:18:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 123 proven. 32 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-24 01:18:34,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2090355406] [2020-10-24 01:18:34,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:18:34,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:18:34,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073139772] [2020-10-24 01:18:34,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:18:34,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:18:34,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:18:34,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:18:34,044 INFO L87 Difference]: Start difference. First operand 2339 states and 2693 transitions. Second operand 8 states. [2020-10-24 01:18:35,440 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:18:37,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:18:37,828 INFO L93 Difference]: Finished difference Result 4725 states and 5461 transitions. [2020-10-24 01:18:37,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-24 01:18:37,829 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 249 [2020-10-24 01:18:37,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:18:37,844 INFO L225 Difference]: With dead ends: 4725 [2020-10-24 01:18:37,845 INFO L226 Difference]: Without dead ends: 2559 [2020-10-24 01:18:37,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 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 01:18:37,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2020-10-24 01:18:38,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2489. [2020-10-24 01:18:38,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2020-10-24 01:18:38,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 2850 transitions. [2020-10-24 01:18:38,326 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 2850 transitions. Word has length 249 [2020-10-24 01:18:38,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:18:38,326 INFO L481 AbstractCegarLoop]: Abstraction has 2489 states and 2850 transitions. [2020-10-24 01:18:38,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:18:38,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 2850 transitions. [2020-10-24 01:18:38,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-24 01:18:38,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:18:38,336 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-24 01:18:38,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-24 01:18:38,337 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:18:38,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:18:38,337 INFO L82 PathProgramCache]: Analyzing trace with hash 517650633, now seen corresponding path program 1 times [2020-10-24 01:18:38,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:18:38,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143058171] [2020-10-24 01:18:38,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:18:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:38,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:18:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:38,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:18:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:38,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 01:18:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:38,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-24 01:18:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:38,805 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 129 proven. 21 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-24 01:18:38,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143058171] [2020-10-24 01:18:38,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:18:38,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 01:18:38,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928100230] [2020-10-24 01:18:38,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 01:18:38,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:18:38,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 01:18:38,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-24 01:18:38,808 INFO L87 Difference]: Start difference. First operand 2489 states and 2850 transitions. Second operand 11 states. [2020-10-24 01:18:39,002 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:18:39,312 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-10-24 01:18:40,009 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:18:41,856 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-10-24 01:18:42,180 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:18:44,380 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-24 01:18:45,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:18:45,463 INFO L93 Difference]: Finished difference Result 6737 states and 7721 transitions. [2020-10-24 01:18:45,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-24 01:18:45,464 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 258 [2020-10-24 01:18:45,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:18:45,487 INFO L225 Difference]: With dead ends: 6737 [2020-10-24 01:18:45,487 INFO L226 Difference]: Without dead ends: 4421 [2020-10-24 01:18:45,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2020-10-24 01:18:45,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4421 states. [2020-10-24 01:18:46,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4421 to 4336. [2020-10-24 01:18:46,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4336 states. [2020-10-24 01:18:46,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 4887 transitions. [2020-10-24 01:18:46,580 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 4887 transitions. Word has length 258 [2020-10-24 01:18:46,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:18:46,580 INFO L481 AbstractCegarLoop]: Abstraction has 4336 states and 4887 transitions. [2020-10-24 01:18:46,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 01:18:46,581 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 4887 transitions. [2020-10-24 01:18:46,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-24 01:18:46,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:18:46,590 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] [2020-10-24 01:18:46,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-24 01:18:46,591 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:18:46,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:18:46,591 INFO L82 PathProgramCache]: Analyzing trace with hash 99303578, now seen corresponding path program 1 times [2020-10-24 01:18:46,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:18:46,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657360337] [2020-10-24 01:18:46,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:18:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:46,941 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-24 01:18:46,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:18:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:47,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:18:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:47,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-24 01:18:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:47,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-24 01:18:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:18:47,445 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 01:18:47,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657360337] [2020-10-24 01:18:47,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:18:47,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-24 01:18:47,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743236728] [2020-10-24 01:18:47,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-24 01:18:47,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:18:47,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-24 01:18:47,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-10-24 01:18:47,448 INFO L87 Difference]: Start difference. First operand 4336 states and 4887 transitions. Second operand 15 states. [2020-10-24 01:18:47,725 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-24 01:18:48,151 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-10-24 01:18:49,096 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-24 01:18:50,031 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-10-24 01:18:50,591 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-24 01:18:51,219 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-24 01:18:51,646 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2020-10-24 01:18:52,590 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-24 01:18:53,406 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-24 01:18:53,718 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-24 01:18:54,623 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-24 01:18:55,023 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-10-24 01:18:56,476 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-24 01:18:58,087 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-24 01:18:59,439 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-24 01:18:59,867 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2020-10-24 01:19:02,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:19:02,491 INFO L93 Difference]: Finished difference Result 11030 states and 12673 transitions. [2020-10-24 01:19:02,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-10-24 01:19:02,491 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 264 [2020-10-24 01:19:02,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:19:02,541 INFO L225 Difference]: With dead ends: 11030 [2020-10-24 01:19:02,542 INFO L226 Difference]: Without dead ends: 6392 [2020-10-24 01:19:02,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 948 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=830, Invalid=2476, Unknown=0, NotChecked=0, Total=3306 [2020-10-24 01:19:02,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6392 states. [2020-10-24 01:19:04,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6392 to 6319. [2020-10-24 01:19:04,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6319 states. [2020-10-24 01:19:04,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6319 states to 6319 states and 6958 transitions. [2020-10-24 01:19:04,308 INFO L78 Accepts]: Start accepts. Automaton has 6319 states and 6958 transitions. Word has length 264 [2020-10-24 01:19:04,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:19:04,308 INFO L481 AbstractCegarLoop]: Abstraction has 6319 states and 6958 transitions. [2020-10-24 01:19:04,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-24 01:19:04,309 INFO L276 IsEmpty]: Start isEmpty. Operand 6319 states and 6958 transitions. [2020-10-24 01:19:04,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-10-24 01:19:04,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:19:04,323 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:19:04,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-24 01:19:04,323 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:19:04,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:19:04,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1136442186, now seen corresponding path program 1 times [2020-10-24 01:19:04,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:19:04,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272905937] [2020-10-24 01:19:04,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:19:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:04,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:19:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:04,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:19:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:04,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 01:19:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:04,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-24 01:19:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:04,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-24 01:19:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:04,863 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 198 proven. 28 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-24 01:19:04,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272905937] [2020-10-24 01:19:04,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:19:04,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 01:19:04,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007410592] [2020-10-24 01:19:04,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:19:04,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:19:04,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:19:04,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:19:04,865 INFO L87 Difference]: Start difference. First operand 6319 states and 6958 transitions. Second operand 10 states. [2020-10-24 01:19:05,205 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:19:06,413 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-24 01:19:06,666 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-24 01:19:06,812 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-24 01:19:10,076 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:19:12,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:19:12,929 INFO L93 Difference]: Finished difference Result 14498 states and 16061 transitions. [2020-10-24 01:19:12,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-24 01:19:12,930 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 301 [2020-10-24 01:19:12,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:19:12,968 INFO L225 Difference]: With dead ends: 14498 [2020-10-24 01:19:12,968 INFO L226 Difference]: Without dead ends: 8012 [2020-10-24 01:19:12,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2020-10-24 01:19:12,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8012 states. [2020-10-24 01:19:14,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8012 to 7926. [2020-10-24 01:19:14,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7926 states. [2020-10-24 01:19:14,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7926 states to 7926 states and 8566 transitions. [2020-10-24 01:19:14,993 INFO L78 Accepts]: Start accepts. Automaton has 7926 states and 8566 transitions. Word has length 301 [2020-10-24 01:19:14,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:19:14,994 INFO L481 AbstractCegarLoop]: Abstraction has 7926 states and 8566 transitions. [2020-10-24 01:19:14,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:19:14,994 INFO L276 IsEmpty]: Start isEmpty. Operand 7926 states and 8566 transitions. [2020-10-24 01:19:15,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-10-24 01:19:15,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:19:15,009 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-24 01:19:15,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-24 01:19:15,010 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:19:15,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:19:15,010 INFO L82 PathProgramCache]: Analyzing trace with hash 600146318, now seen corresponding path program 1 times [2020-10-24 01:19:15,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:19:15,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339789500] [2020-10-24 01:19:15,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:19:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:15,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:19:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:15,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:19:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:15,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 01:19:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:15,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-24 01:19:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:15,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-24 01:19:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:15,371 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 224 proven. 60 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-24 01:19:15,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339789500] [2020-10-24 01:19:15,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:19:15,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:19:15,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406603076] [2020-10-24 01:19:15,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:19:15,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:19:15,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:19:15,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:19:15,377 INFO L87 Difference]: Start difference. First operand 7926 states and 8566 transitions. Second operand 7 states. [2020-10-24 01:19:19,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:19:19,714 INFO L93 Difference]: Finished difference Result 15804 states and 17071 transitions. [2020-10-24 01:19:19,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 01:19:19,715 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 319 [2020-10-24 01:19:19,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:19:19,754 INFO L225 Difference]: With dead ends: 15804 [2020-10-24 01:19:19,754 INFO L226 Difference]: Without dead ends: 8056 [2020-10-24 01:19:19,775 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 01:19:19,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8056 states. [2020-10-24 01:19:22,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8056 to 7985. [2020-10-24 01:19:22,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7985 states. [2020-10-24 01:19:22,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7985 states to 7985 states and 8521 transitions. [2020-10-24 01:19:22,047 INFO L78 Accepts]: Start accepts. Automaton has 7985 states and 8521 transitions. Word has length 319 [2020-10-24 01:19:22,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:19:22,048 INFO L481 AbstractCegarLoop]: Abstraction has 7985 states and 8521 transitions. [2020-10-24 01:19:22,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:19:22,048 INFO L276 IsEmpty]: Start isEmpty. Operand 7985 states and 8521 transitions. [2020-10-24 01:19:22,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-10-24 01:19:22,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:19:22,063 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:19:22,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-24 01:19:22,063 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:19:22,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:19:22,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1669067512, now seen corresponding path program 1 times [2020-10-24 01:19:22,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:19:22,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100442499] [2020-10-24 01:19:22,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:19:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:22,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:19:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:22,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:19:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:22,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-24 01:19:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:22,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-24 01:19:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:22,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-24 01:19:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:22,459 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 243 proven. 18 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2020-10-24 01:19:22,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100442499] [2020-10-24 01:19:22,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:19:22,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:19:22,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701190705] [2020-10-24 01:19:22,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:19:22,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:19:22,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:19:22,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:19:22,461 INFO L87 Difference]: Start difference. First operand 7985 states and 8521 transitions. Second operand 8 states. [2020-10-24 01:19:23,966 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-24 01:19:27,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:19:27,447 INFO L93 Difference]: Finished difference Result 15999 states and 17075 transitions. [2020-10-24 01:19:27,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-24 01:19:27,447 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 341 [2020-10-24 01:19:27,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:19:27,481 INFO L225 Difference]: With dead ends: 15999 [2020-10-24 01:19:27,481 INFO L226 Difference]: Without dead ends: 8192 [2020-10-24 01:19:27,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-24 01:19:27,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8192 states. [2020-10-24 01:19:29,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8192 to 8136. [2020-10-24 01:19:29,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8136 states. [2020-10-24 01:19:29,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8136 states to 8136 states and 8653 transitions. [2020-10-24 01:19:29,699 INFO L78 Accepts]: Start accepts. Automaton has 8136 states and 8653 transitions. Word has length 341 [2020-10-24 01:19:29,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:19:29,700 INFO L481 AbstractCegarLoop]: Abstraction has 8136 states and 8653 transitions. [2020-10-24 01:19:29,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:19:29,700 INFO L276 IsEmpty]: Start isEmpty. Operand 8136 states and 8653 transitions. [2020-10-24 01:19:29,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-10-24 01:19:29,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:19:29,713 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:19:29,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-24 01:19:29,714 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:19:29,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:19:29,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1781110573, now seen corresponding path program 1 times [2020-10-24 01:19:29,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:19:29,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819884110] [2020-10-24 01:19:29,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:19:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:29,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:19:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:29,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-24 01:19:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:30,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-24 01:19:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:30,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-24 01:19:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:30,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-24 01:19:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:30,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-24 01:19:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:19:30,199 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 228 proven. 42 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2020-10-24 01:19:30,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [819884110] [2020-10-24 01:19:30,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:19:30,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:19:30,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053868657] [2020-10-24 01:19:30,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:19:30,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:19:30,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:19:30,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:19:30,202 INFO L87 Difference]: Start difference. First operand 8136 states and 8653 transitions. Second operand 7 states. [2020-10-24 01:19:34,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:19:34,463 INFO L93 Difference]: Finished difference Result 14997 states and 15939 transitions. [2020-10-24 01:19:34,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-24 01:19:34,463 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 362 [2020-10-24 01:19:34,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:19:34,470 INFO L225 Difference]: With dead ends: 14997 [2020-10-24 01:19:34,470 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 01:19:34,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:19:34,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 01:19:34,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 01:19:34,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 01:19:34,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 01:19:34,491 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 362 [2020-10-24 01:19:34,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:19:34,491 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 01:19:34,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:19:34,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 01:19:34,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 01:19:34,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-24 01:19:34,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 01:19:49,720 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 122 [2020-10-24 01:19:49,830 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 122 [2020-10-24 01:19:50,008 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 123 [2020-10-24 01:19:50,126 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 122 [2020-10-24 01:20:07,283 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-10-24 01:20:42,495 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-10-24 01:20:44,271 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-10-24 01:20:44,449 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-10-24 01:21:03,048 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-10-24 01:22:26,937 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-10-24 01:23:15,656 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-10-24 01:23:15,847 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-10-24 01:23:16,023 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-10-24 01:23:18,649 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-10-24 01:23:31,781 WARN L193 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:23:34,572 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:23:37,288 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:23:40,004 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:23:41,017 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:23:41,989 WARN L193 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-10-24 01:23:42,970 WARN L193 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-10-24 01:23:45,719 WARN L193 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:23:46,736 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:23:49,465 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:23:50,691 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 198 DAG size of output: 72 [2020-10-24 01:23:51,966 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 199 DAG size of output: 73 [2020-10-24 01:23:52,824 WARN L193 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 69 [2020-10-24 01:23:53,954 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 156 DAG size of output: 74 [2020-10-24 01:23:54,762 WARN L193 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 63 [2020-10-24 01:23:55,983 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 150 DAG size of output: 69 [2020-10-24 01:23:58,899 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:24:00,671 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 235 DAG size of output: 78 [2020-10-24 01:24:02,037 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 208 DAG size of output: 74 [2020-10-24 01:24:04,948 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:24:07,846 WARN L193 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:24:08,886 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-10-24 01:24:09,752 WARN L193 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 69 [2020-10-24 01:24:10,689 WARN L193 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 69 [2020-10-24 01:24:11,904 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 199 DAG size of output: 74 [2020-10-24 01:24:14,835 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:24:15,631 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 69 [2020-10-24 01:24:16,692 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:24:17,540 WARN L193 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 67 [2020-10-24 01:24:18,923 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 226 DAG size of output: 81 [2020-10-24 01:24:19,966 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-10-24 01:24:21,271 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 165 DAG size of output: 78 [2020-10-24 01:24:24,192 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:24:25,482 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 199 DAG size of output: 73 [2020-10-24 01:24:28,398 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:24:29,278 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 69 [2020-10-24 01:24:30,437 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 152 DAG size of output: 72 [2020-10-24 01:24:31,649 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 160 DAG size of output: 73 [2020-10-24 01:24:34,590 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:24:35,753 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 157 DAG size of output: 75 [2020-10-24 01:24:36,821 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-10-24 01:24:37,649 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-10-24 01:24:38,562 WARN L193 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 65 [2020-10-24 01:24:40,266 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 194 DAG size of output: 86 [2020-10-24 01:24:41,142 WARN L193 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 70 [2020-10-24 01:24:42,015 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 71 [2020-10-24 01:24:44,957 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:24:45,994 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 161 DAG size of output: 81 [2020-10-24 01:24:47,230 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 205 DAG size of output: 71 [2020-10-24 01:24:48,538 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 169 DAG size of output: 77 [2020-10-24 01:24:49,401 WARN L193 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 67 [2020-10-24 01:24:50,333 WARN L193 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 71 [2020-10-24 01:24:51,827 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 216 DAG size of output: 81 [2020-10-24 01:24:52,625 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 67 [2020-10-24 01:24:53,892 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 198 DAG size of output: 72 [2020-10-24 01:24:55,242 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 160 DAG size of output: 75 [2020-10-24 01:24:56,164 WARN L193 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-10-24 01:24:59,112 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:25:00,266 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 152 DAG size of output: 70 [2020-10-24 01:25:01,653 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 207 DAG size of output: 67 [2020-10-24 01:25:02,712 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:25:03,530 WARN L193 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 69 [2020-10-24 01:25:06,492 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:25:07,308 WARN L193 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 69 [2020-10-24 01:25:08,316 WARN L193 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-10-24 01:25:11,139 WARN L193 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:25:13,948 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:25:16,760 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:25:17,812 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:25:18,866 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:25:19,924 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:25:22,740 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:25:25,734 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:25:26,551 WARN L193 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 69 [2020-10-24 01:25:28,533 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 178 DAG size of output: 81 [2020-10-24 01:25:31,519 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:25:32,681 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-10-24 01:25:34,265 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 213 DAG size of output: 75 [2020-10-24 01:25:35,446 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 155 DAG size of output: 73 [2020-10-24 01:25:36,585 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 151 DAG size of output: 69 [2020-10-24 01:25:37,842 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 150 DAG size of output: 69 [2020-10-24 01:25:39,648 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 212 DAG size of output: 76 [2020-10-24 01:25:41,223 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 235 DAG size of output: 76 [2020-10-24 01:25:42,071 WARN L193 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-10-24 01:25:43,099 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 206 DAG size of output: 71 [2020-10-24 01:25:44,288 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 153 DAG size of output: 74 [2020-10-24 01:25:47,290 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:25:48,730 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 164 DAG size of output: 83 [2020-10-24 01:25:49,641 WARN L193 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 71 [2020-10-24 01:25:50,471 WARN L193 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 69 [2020-10-24 01:25:51,811 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 159 DAG size of output: 81 [2020-10-24 01:25:52,710 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 72 [2020-10-24 01:25:53,779 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:25:54,593 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2020-10-24 01:25:57,842 WARN L193 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:26:01,080 WARN L193 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:26:02,236 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:26:05,276 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:26:08,345 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:26:11,391 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:26:12,479 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-10-24 01:26:13,476 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 68 [2020-10-24 01:26:15,136 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 169 DAG size of output: 79 [2020-10-24 01:26:18,201 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:26:19,153 WARN L193 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 73 [2020-10-24 01:26:20,030 WARN L193 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 70 [2020-10-24 01:26:21,303 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 154 DAG size of output: 72 [2020-10-24 01:26:23,686 WARN L193 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 239 DAG size of output: 85 [2020-10-24 01:26:25,207 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 207 DAG size of output: 75 [2020-10-24 01:26:26,315 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 167 DAG size of output: 79 [2020-10-24 01:26:27,818 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 176 DAG size of output: 72 [2020-10-24 01:26:28,997 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-10-24 01:26:29,985 WARN L193 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 71 [2020-10-24 01:26:31,368 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 166 DAG size of output: 76 [2020-10-24 01:26:34,533 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:26:35,839 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 198 DAG size of output: 72 [2020-10-24 01:26:39,028 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:26:40,420 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 151 DAG size of output: 69 [2020-10-24 01:26:41,558 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:26:42,665 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-10-24 01:26:45,694 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:26:47,270 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 215 DAG size of output: 77 [2020-10-24 01:26:48,991 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 166 DAG size of output: 79 [2020-10-24 01:26:52,164 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:26:53,510 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 157 DAG size of output: 75 [2020-10-24 01:26:54,431 WARN L193 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 67 [2020-10-24 01:26:55,639 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 151 DAG size of output: 69 [2020-10-24 01:26:56,679 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 161 DAG size of output: 79 [2020-10-24 01:26:57,833 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-10-24 01:26:58,974 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-10-24 01:27:02,119 WARN L193 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:27:03,112 WARN L193 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 72 [2020-10-24 01:27:04,321 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 155 DAG size of output: 70 [2020-10-24 01:27:05,627 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 150 DAG size of output: 68 [2020-10-24 01:27:06,734 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 148 DAG size of output: 66 [2020-10-24 01:27:07,750 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 155 DAG size of output: 70 [2020-10-24 01:27:08,787 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 197 DAG size of output: 71 [2020-10-24 01:27:09,953 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-10-24 01:27:11,381 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 162 DAG size of output: 80 [2020-10-24 01:27:12,738 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 164 DAG size of output: 71 [2020-10-24 01:27:14,196 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 181 DAG size of output: 77 [2020-10-24 01:27:15,900 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 219 DAG size of output: 79 [2020-10-24 01:27:16,847 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 71 [2020-10-24 01:27:17,946 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 165 DAG size of output: 75 [2020-10-24 01:27:18,936 WARN L193 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 72 [2020-10-24 01:27:20,705 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 191 DAG size of output: 81 [2020-10-24 01:27:21,682 WARN L193 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 71 [2020-10-24 01:27:22,780 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-10-24 01:27:24,267 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 207 DAG size of output: 67 [2020-10-24 01:27:27,291 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:27:30,295 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:27:31,799 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 207 DAG size of output: 67 [2020-10-24 01:27:33,273 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 207 DAG size of output: 67 [2020-10-24 01:27:34,354 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-10-24 01:27:35,434 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2020-10-24 01:27:38,602 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:27:39,767 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 150 DAG size of output: 68 [2020-10-24 01:27:40,802 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 170 DAG size of output: 80 [2020-10-24 01:27:41,778 WARN L193 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 69 [2020-10-24 01:27:44,792 WARN L193 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:27:47,905 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:27:49,659 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 209 DAG size of output: 77 [2020-10-24 01:27:50,794 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-10-24 01:27:53,720 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:27:54,792 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:27:55,874 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:27:56,908 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-10-24 01:27:59,790 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:28:00,864 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:28:01,938 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:28:04,820 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:28:05,856 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-10-24 01:28:08,754 WARN L193 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:28:09,835 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:28:10,924 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 148 DAG size of output: 66 [2020-10-24 01:28:11,783 WARN L193 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 65 [2020-10-24 01:28:12,657 WARN L193 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 67 [2020-10-24 01:28:15,711 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:28:17,478 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 209 DAG size of output: 77 [2020-10-24 01:28:20,517 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:28:21,732 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 157 DAG size of output: 75 [2020-10-24 01:28:23,004 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 155 DAG size of output: 74 [2020-10-24 01:28:24,051 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-10-24 01:28:24,828 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 56 [2020-10-24 01:28:27,722 WARN L193 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:28:30,779 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:28:31,925 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-10-24 01:28:32,874 WARN L193 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 67 [2020-10-24 01:28:35,775 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:28:36,555 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 56 [2020-10-24 01:28:38,048 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 207 DAG size of output: 67 [2020-10-24 01:28:39,026 WARN L193 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-10-24 01:28:40,467 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 223 DAG size of output: 81 [2020-10-24 01:28:41,650 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-10-24 01:28:42,944 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 156 DAG size of output: 71 [2020-10-24 01:28:46,023 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:28:49,091 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:28:50,367 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 156 DAG size of output: 75 [2020-10-24 01:28:51,376 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 72 [2020-10-24 01:28:52,527 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-10-24 01:28:53,394 WARN L193 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 70 [2020-10-24 01:28:54,521 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-10-24 01:28:55,385 WARN L193 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 63 [2020-10-24 01:28:57,157 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 209 DAG size of output: 77 [2020-10-24 01:28:58,128 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 69 [2020-10-24 01:28:59,327 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 153 DAG size of output: 69 [2020-10-24 01:29:00,446 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-10-24 01:29:01,569 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-10-24 01:29:03,099 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 166 DAG size of output: 78 [2020-10-24 01:29:06,186 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:29:07,605 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 180 DAG size of output: 77 [2020-10-24 01:29:09,347 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 168 DAG size of output: 80 [2020-10-24 01:29:10,291 WARN L193 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 69 [2020-10-24 01:29:11,372 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 155 DAG size of output: 72 [2020-10-24 01:29:14,460 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:29:15,643 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 149 DAG size of output: 68 [2020-10-24 01:29:18,731 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:29:20,117 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 162 DAG size of output: 75 [2020-10-24 01:29:21,106 WARN L193 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 78 [2020-10-24 01:29:22,342 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 152 DAG size of output: 72 [2020-10-24 01:29:25,446 WARN L193 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:29:26,362 WARN L193 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 69 [2020-10-24 01:29:29,293 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 281 DAG size of output: 92 [2020-10-24 01:29:30,214 WARN L193 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 71 [2020-10-24 01:29:31,756 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 168 DAG size of output: 77 [2020-10-24 01:29:33,018 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 198 DAG size of output: 71 [2020-10-24 01:29:33,927 WARN L193 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 74 [2020-10-24 01:29:37,044 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:29:37,929 WARN L193 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 63 [2020-10-24 01:29:41,024 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:29:42,523 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 166 DAG size of output: 79 [2020-10-24 01:29:43,427 WARN L193 SmtUtils]: Spent 893.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 65 [2020-10-24 01:29:44,500 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 206 DAG size of output: 71 [2020-10-24 01:29:45,420 WARN L193 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 71 [2020-10-24 01:29:48,373 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:29:49,480 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:29:50,552 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-10-24 01:29:51,620 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-10-24 01:29:54,589 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:29:55,673 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-10-24 01:29:58,657 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:30:01,781 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:30:02,683 WARN L193 SmtUtils]: Spent 893.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 68 [2020-10-24 01:30:05,805 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:30:07,177 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 162 DAG size of output: 82 [2020-10-24 01:30:08,326 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-10-24 01:30:11,467 WARN L193 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:30:13,150 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 199 DAG size of output: 73 [2020-10-24 01:30:14,302 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-10-24 01:30:15,243 WARN L193 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 69 [2020-10-24 01:30:18,365 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:30:19,631 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 152 DAG size of output: 70 [2020-10-24 01:30:22,765 WARN L193 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:30:23,841 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-10-24 01:30:26,827 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-10-24 01:30:29,987 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:30:30,998 WARN L193 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 69 [2020-10-24 01:30:31,947 WARN L193 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 68 [2020-10-24 01:30:33,200 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-10-24 01:30:36,369 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:30:37,370 WARN L193 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 69 [2020-10-24 01:30:40,529 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:30:41,763 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 155 DAG size of output: 69 [2020-10-24 01:30:43,052 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 198 DAG size of output: 72 [2020-10-24 01:30:46,244 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:30:48,074 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 209 DAG size of output: 77 [2020-10-24 01:30:49,462 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 162 DAG size of output: 73 [2020-10-24 01:30:50,802 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 150 DAG size of output: 69 [2020-10-24 01:30:51,789 WARN L193 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 75 [2020-10-24 01:30:54,962 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:30:58,331 WARN L193 SmtUtils]: Spent 3.35 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-10-24 01:30:59,526 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-10-24 01:31:00,496 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 69