/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/Problem02_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:44:04,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:44:04,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:44:04,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 01:44:04,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:44:04,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:44:04,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:44:04,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:44:04,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:44:04,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:44:04,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:44:04,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:44:04,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:44:04,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:44:04,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:44:04,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:44:04,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 01:44:04,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 01:44:04,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 01:44:04,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 01:44:04,240 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 01:44:04,262 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:44:04,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:44:04,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:44:04,267 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:44:04,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:44:04,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:44:04,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:44:04,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:44:04,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:44:04,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:44:04,269 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:44:04,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:44:04,269 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:44:04,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:44:04,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:44:04,270 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:44:04,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:44:04,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:44:04,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:44:04,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:44:04,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:44:04,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:44:04,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:44:04,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:44:04,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:44:04,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:44:04,742 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:44:04,742 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:44:04,743 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label34.c [2020-10-24 01:44:04,823 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2697a353/48fd5ab64ce64d37a2ebc86c8aab98aa/FLAG93c976ba8 [2020-10-24 01:44:05,542 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:44:05,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label34.c [2020-10-24 01:44:05,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2697a353/48fd5ab64ce64d37a2ebc86c8aab98aa/FLAG93c976ba8 [2020-10-24 01:44:05,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2697a353/48fd5ab64ce64d37a2ebc86c8aab98aa [2020-10-24 01:44:05,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:44:05,734 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:44:05,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:44:05,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:44:05,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:44:05,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:44:05" (1/1) ... [2020-10-24 01:44:05,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3387b0c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:05, skipping insertion in model container [2020-10-24 01:44:05,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:44:05" (1/1) ... [2020-10-24 01:44:05,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:44:05,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:44:06,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:44:06,322 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:44:06,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:44:06,475 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:44:06,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:06 WrapperNode [2020-10-24 01:44:06,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:44:06,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:44:06,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:44:06,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:44:06,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:06" (1/1) ... [2020-10-24 01:44:06,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:06" (1/1) ... [2020-10-24 01:44:06,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:06" (1/1) ... [2020-10-24 01:44:06,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:06" (1/1) ... [2020-10-24 01:44:06,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:06" (1/1) ... [2020-10-24 01:44:06,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:06" (1/1) ... [2020-10-24 01:44:06,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:06" (1/1) ... [2020-10-24 01:44:06,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:44:06,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:44:06,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:44:06,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:44:06,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:06" (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 01:44:06,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:44:06,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:44:06,718 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:44:06,718 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-24 01:44:06,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:44:06,719 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-24 01:44:06,719 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:44:06,719 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:44:06,719 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:44:06,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:44:06,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 01:44:06,720 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-24 01:44:06,720 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:44:06,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:44:06,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:44:06,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:44:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:44:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:44:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:44:08,216 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:44:08,216 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-24 01:44:08,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:44:08 BoogieIcfgContainer [2020-10-24 01:44:08,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:44:08,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:44:08,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:44:08,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:44:08,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:44:05" (1/3) ... [2020-10-24 01:44:08,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13963ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:44:08, skipping insertion in model container [2020-10-24 01:44:08,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:06" (2/3) ... [2020-10-24 01:44:08,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13963ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:44:08, skipping insertion in model container [2020-10-24 01:44:08,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:44:08" (3/3) ... [2020-10-24 01:44:08,228 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label34.c [2020-10-24 01:44:08,240 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:44:08,246 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:44:08,260 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:44:08,284 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:44:08,285 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:44:08,285 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:44:08,285 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:44:08,285 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:44:08,285 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:44:08,285 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:44:08,286 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:44:08,312 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states. [2020-10-24 01:44:08,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-24 01:44:08,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:44:08,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:44:08,336 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:44:08,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:44:08,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1178715475, now seen corresponding path program 1 times [2020-10-24 01:44:08,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:44:08,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899185068] [2020-10-24 01:44:08,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:44:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:08,988 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-24 01:44:08,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:44:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:09,114 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 01:44:09,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899185068] [2020-10-24 01:44:09,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:44:09,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-24 01:44:09,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219638248] [2020-10-24 01:44:09,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 01:44:09,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:44:09,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 01:44:09,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:44:09,150 INFO L87 Difference]: Start difference. First operand 539 states. Second operand 5 states. [2020-10-24 01:44:13,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:44:13,235 INFO L93 Difference]: Finished difference Result 1444 states and 2039 transitions. [2020-10-24 01:44:13,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 01:44:13,237 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-10-24 01:44:13,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:44:13,274 INFO L225 Difference]: With dead ends: 1444 [2020-10-24 01:44:13,274 INFO L226 Difference]: Without dead ends: 857 [2020-10-24 01:44:13,292 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:44:13,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-10-24 01:44:13,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 784. [2020-10-24 01:44:13,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2020-10-24 01:44:13,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 951 transitions. [2020-10-24 01:44:13,602 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 951 transitions. Word has length 133 [2020-10-24 01:44:13,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:44:13,607 INFO L481 AbstractCegarLoop]: Abstraction has 784 states and 951 transitions. [2020-10-24 01:44:13,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 01:44:13,607 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 951 transitions. [2020-10-24 01:44:13,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-24 01:44:13,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:44:13,630 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:13,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:44:13,631 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:44:13,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:44:13,632 INFO L82 PathProgramCache]: Analyzing trace with hash -944533080, now seen corresponding path program 1 times [2020-10-24 01:44:13,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:44:13,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717353699] [2020-10-24 01:44:13,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:44:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:13,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:44:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:13,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:44:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:14,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-24 01:44:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:14,113 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 01:44:14,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717353699] [2020-10-24 01:44:14,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:44:14,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-24 01:44:14,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462539278] [2020-10-24 01:44:14,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-24 01:44:14,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:44:14,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-24 01:44:14,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-24 01:44:14,122 INFO L87 Difference]: Start difference. First operand 784 states and 951 transitions. Second operand 12 states. [2020-10-24 01:44:14,488 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-10-24 01:44:14,986 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-10-24 01:44:15,385 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-24 01:44:16,297 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-24 01:44:17,325 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-24 01:44:17,937 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-24 01:44:18,615 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-24 01:44:19,416 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-24 01:44:22,747 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-10-24 01:44:27,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:44:27,878 INFO L93 Difference]: Finished difference Result 5015 states and 6654 transitions. [2020-10-24 01:44:27,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-24 01:44:27,884 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 168 [2020-10-24 01:44:27,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:44:27,917 INFO L225 Difference]: With dead ends: 5015 [2020-10-24 01:44:27,917 INFO L226 Difference]: Without dead ends: 4261 [2020-10-24 01:44:27,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=599, Invalid=2481, Unknown=0, NotChecked=0, Total=3080 [2020-10-24 01:44:27,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4261 states. [2020-10-24 01:44:28,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4261 to 3096. [2020-10-24 01:44:28,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3096 states. [2020-10-24 01:44:28,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 3862 transitions. [2020-10-24 01:44:28,675 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 3862 transitions. Word has length 168 [2020-10-24 01:44:28,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:44:28,675 INFO L481 AbstractCegarLoop]: Abstraction has 3096 states and 3862 transitions. [2020-10-24 01:44:28,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-24 01:44:28,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 3862 transitions. [2020-10-24 01:44:28,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-24 01:44:28,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:44:28,690 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:44:28,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 01:44:28,691 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:44:28,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:44:28,691 INFO L82 PathProgramCache]: Analyzing trace with hash -854257371, now seen corresponding path program 1 times [2020-10-24 01:44:28,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:44:28,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203775230] [2020-10-24 01:44:28,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:44:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:28,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:44:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:28,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:44:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:28,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-24 01:44:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:29,022 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 01:44:29,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203775230] [2020-10-24 01:44:29,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:44:29,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-24 01:44:29,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181699872] [2020-10-24 01:44:29,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 01:44:29,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:44:29,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 01:44:29,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-24 01:44:29,028 INFO L87 Difference]: Start difference. First operand 3096 states and 3862 transitions. Second operand 9 states. [2020-10-24 01:44:30,199 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-24 01:44:35,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:44:35,228 INFO L93 Difference]: Finished difference Result 7467 states and 9869 transitions. [2020-10-24 01:44:35,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-24 01:44:35,228 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 173 [2020-10-24 01:44:35,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:44:35,271 INFO L225 Difference]: With dead ends: 7467 [2020-10-24 01:44:35,271 INFO L226 Difference]: Without dead ends: 4401 [2020-10-24 01:44:35,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2020-10-24 01:44:35,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4401 states. [2020-10-24 01:44:36,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4401 to 3956. [2020-10-24 01:44:36,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3956 states. [2020-10-24 01:44:36,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3956 states to 3956 states and 4930 transitions. [2020-10-24 01:44:36,183 INFO L78 Accepts]: Start accepts. Automaton has 3956 states and 4930 transitions. Word has length 173 [2020-10-24 01:44:36,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:44:36,183 INFO L481 AbstractCegarLoop]: Abstraction has 3956 states and 4930 transitions. [2020-10-24 01:44:36,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 01:44:36,184 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 4930 transitions. [2020-10-24 01:44:36,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-24 01:44:36,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:44:36,197 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:36,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 01:44:36,198 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:44:36,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:44:36,199 INFO L82 PathProgramCache]: Analyzing trace with hash -264933597, now seen corresponding path program 1 times [2020-10-24 01:44:36,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:44:36,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792305939] [2020-10-24 01:44:36,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:44:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:36,537 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-24 01:44:36,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:44:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:36,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:44:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:36,683 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:44:36,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792305939] [2020-10-24 01:44:36,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:44:36,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:44:36,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181287336] [2020-10-24 01:44:36,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:44:36,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:44:36,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:44:36,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:44:36,687 INFO L87 Difference]: Start difference. First operand 3956 states and 4930 transitions. Second operand 8 states. [2020-10-24 01:44:36,974 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-10-24 01:44:38,228 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-10-24 01:44:42,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:44:42,970 INFO L93 Difference]: Finished difference Result 10695 states and 13909 transitions. [2020-10-24 01:44:42,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-24 01:44:42,970 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 176 [2020-10-24 01:44:42,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:44:43,019 INFO L225 Difference]: With dead ends: 10695 [2020-10-24 01:44:43,020 INFO L226 Difference]: Without dead ends: 6769 [2020-10-24 01:44:43,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-10-24 01:44:43,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6769 states. [2020-10-24 01:44:44,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6769 to 5760. [2020-10-24 01:44:44,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5760 states. [2020-10-24 01:44:44,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 7446 transitions. [2020-10-24 01:44:44,276 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 7446 transitions. Word has length 176 [2020-10-24 01:44:44,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:44:44,277 INFO L481 AbstractCegarLoop]: Abstraction has 5760 states and 7446 transitions. [2020-10-24 01:44:44,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:44:44,277 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 7446 transitions. [2020-10-24 01:44:44,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-24 01:44:44,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:44:44,301 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:44:44,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 01:44:44,302 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:44:44,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:44:44,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1929367664, now seen corresponding path program 1 times [2020-10-24 01:44:44,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:44:44,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890943428] [2020-10-24 01:44:44,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:44:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:44,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:44:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:44,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:44:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:44,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-24 01:44:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:44,566 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 01:44:44,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890943428] [2020-10-24 01:44:44,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:44:44,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:44:44,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419658256] [2020-10-24 01:44:44,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:44:44,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:44:44,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:44:44,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:44:44,571 INFO L87 Difference]: Start difference. First operand 5760 states and 7446 transitions. Second operand 7 states. [2020-10-24 01:44:45,170 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-24 01:44:49,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:44:49,770 INFO L93 Difference]: Finished difference Result 12452 states and 16555 transitions. [2020-10-24 01:44:49,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 01:44:49,775 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 216 [2020-10-24 01:44:49,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:44:49,827 INFO L225 Difference]: With dead ends: 12452 [2020-10-24 01:44:49,828 INFO L226 Difference]: Without dead ends: 6722 [2020-10-24 01:44:49,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 01:44:49,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6722 states. [2020-10-24 01:44:50,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6722 to 6265. [2020-10-24 01:44:50,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6265 states. [2020-10-24 01:44:50,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6265 states to 6265 states and 7736 transitions. [2020-10-24 01:44:50,972 INFO L78 Accepts]: Start accepts. Automaton has 6265 states and 7736 transitions. Word has length 216 [2020-10-24 01:44:50,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:44:50,973 INFO L481 AbstractCegarLoop]: Abstraction has 6265 states and 7736 transitions. [2020-10-24 01:44:50,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:44:50,973 INFO L276 IsEmpty]: Start isEmpty. Operand 6265 states and 7736 transitions. [2020-10-24 01:44:50,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-24 01:44:50,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:44:50,996 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-24 01:44:50,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 01:44:50,996 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:44:50,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:44:50,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1239244322, now seen corresponding path program 1 times [2020-10-24 01:44:50,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:44:50,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923217729] [2020-10-24 01:44:50,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:44:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:51,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:44:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:51,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:44:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:51,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-24 01:44:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:51,273 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 84 proven. 21 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-24 01:44:51,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923217729] [2020-10-24 01:44:51,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:44:51,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:44:51,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512884422] [2020-10-24 01:44:51,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:44:51,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:44:51,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:44:51,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:44:51,277 INFO L87 Difference]: Start difference. First operand 6265 states and 7736 transitions. Second operand 7 states. [2020-10-24 01:44:55,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:44:55,031 INFO L93 Difference]: Finished difference Result 14179 states and 17891 transitions. [2020-10-24 01:44:55,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:44:55,032 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 240 [2020-10-24 01:44:55,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:44:55,077 INFO L225 Difference]: With dead ends: 14179 [2020-10-24 01:44:55,078 INFO L226 Difference]: Without dead ends: 7583 [2020-10-24 01:44:55,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 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 01:44:55,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7583 states. [2020-10-24 01:44:56,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7583 to 7257. [2020-10-24 01:44:56,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7257 states. [2020-10-24 01:44:56,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7257 states to 7257 states and 8474 transitions. [2020-10-24 01:44:56,468 INFO L78 Accepts]: Start accepts. Automaton has 7257 states and 8474 transitions. Word has length 240 [2020-10-24 01:44:56,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:44:56,468 INFO L481 AbstractCegarLoop]: Abstraction has 7257 states and 8474 transitions. [2020-10-24 01:44:56,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:44:56,469 INFO L276 IsEmpty]: Start isEmpty. Operand 7257 states and 8474 transitions. [2020-10-24 01:44:56,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-24 01:44:56,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:44:56,488 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-24 01:44:56,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 01:44:56,488 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:44:56,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:44:56,489 INFO L82 PathProgramCache]: Analyzing trace with hash 94371671, now seen corresponding path program 1 times [2020-10-24 01:44:56,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:44:56,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831298] [2020-10-24 01:44:56,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:44:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:56,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:44:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:56,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:44:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:56,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-24 01:44:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:56,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-24 01:44:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:44:56,808 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 125 proven. 34 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-24 01:44:56,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831298] [2020-10-24 01:44:56,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:44:56,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-24 01:44:56,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071311137] [2020-10-24 01:44:56,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 01:44:56,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:44:56,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 01:44:56,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 01:44:56,811 INFO L87 Difference]: Start difference. First operand 7257 states and 8474 transitions. Second operand 8 states. [2020-10-24 01:45:00,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:45:00,279 INFO L93 Difference]: Finished difference Result 13034 states and 15277 transitions. [2020-10-24 01:45:00,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:45:00,279 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 265 [2020-10-24 01:45:00,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:45:00,308 INFO L225 Difference]: With dead ends: 13034 [2020-10-24 01:45:00,309 INFO L226 Difference]: Without dead ends: 6279 [2020-10-24 01:45:00,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-24 01:45:00,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6279 states. [2020-10-24 01:45:01,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6279 to 6256. [2020-10-24 01:45:01,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6256 states. [2020-10-24 01:45:01,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 7121 transitions. [2020-10-24 01:45:01,464 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 7121 transitions. Word has length 265 [2020-10-24 01:45:01,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:45:01,464 INFO L481 AbstractCegarLoop]: Abstraction has 6256 states and 7121 transitions. [2020-10-24 01:45:01,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 01:45:01,464 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 7121 transitions. [2020-10-24 01:45:01,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-10-24 01:45:01,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:45:01,479 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:45:01,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-24 01:45:01,479 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:45:01,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:45:01,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1187643837, now seen corresponding path program 1 times [2020-10-24 01:45:01,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:45:01,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949806669] [2020-10-24 01:45:01,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:45:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:01,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:45:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:01,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:45:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:01,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-24 01:45:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:01,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-24 01:45:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:01,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-24 01:45:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:02,005 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 212 proven. 48 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-24 01:45:02,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949806669] [2020-10-24 01:45:02,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:45:02,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 01:45:02,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827296903] [2020-10-24 01:45:02,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 01:45:02,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:45:02,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 01:45:02,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:45:02,008 INFO L87 Difference]: Start difference. First operand 6256 states and 7121 transitions. Second operand 7 states. [2020-10-24 01:45:06,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:45:06,086 INFO L93 Difference]: Finished difference Result 14965 states and 17023 transitions. [2020-10-24 01:45:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 01:45:06,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 319 [2020-10-24 01:45:06,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:45:06,121 INFO L225 Difference]: With dead ends: 14965 [2020-10-24 01:45:06,121 INFO L226 Difference]: Without dead ends: 7735 [2020-10-24 01:45:06,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 01:45:06,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7735 states. [2020-10-24 01:45:07,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7735 to 5324. [2020-10-24 01:45:07,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5324 states. [2020-10-24 01:45:07,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5324 states to 5324 states and 5865 transitions. [2020-10-24 01:45:07,685 INFO L78 Accepts]: Start accepts. Automaton has 5324 states and 5865 transitions. Word has length 319 [2020-10-24 01:45:07,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:45:07,686 INFO L481 AbstractCegarLoop]: Abstraction has 5324 states and 5865 transitions. [2020-10-24 01:45:07,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 01:45:07,686 INFO L276 IsEmpty]: Start isEmpty. Operand 5324 states and 5865 transitions. [2020-10-24 01:45:07,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-10-24 01:45:07,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:45:07,698 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:45:07,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-24 01:45:07,699 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:45:07,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:45:07,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1251164381, now seen corresponding path program 1 times [2020-10-24 01:45:07,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:45:07,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765317442] [2020-10-24 01:45:07,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:45:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:07,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:45:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:07,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:45:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:07,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-24 01:45:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:07,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-24 01:45:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:08,113 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 261 proven. 16 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-24 01:45:08,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765317442] [2020-10-24 01:45:08,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:45:08,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-24 01:45:08,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413421717] [2020-10-24 01:45:08,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 01:45:08,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:45:08,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 01:45:08,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-24 01:45:08,116 INFO L87 Difference]: Start difference. First operand 5324 states and 5865 transitions. Second operand 9 states. [2020-10-24 01:45:12,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:45:12,790 INFO L93 Difference]: Finished difference Result 11481 states and 12667 transitions. [2020-10-24 01:45:12,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-24 01:45:12,795 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 329 [2020-10-24 01:45:12,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:45:12,822 INFO L225 Difference]: With dead ends: 11481 [2020-10-24 01:45:12,822 INFO L226 Difference]: Without dead ends: 6025 [2020-10-24 01:45:12,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2020-10-24 01:45:12,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6025 states. [2020-10-24 01:45:14,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6025 to 4969. [2020-10-24 01:45:14,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4969 states. [2020-10-24 01:45:14,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4969 states to 4969 states and 5305 transitions. [2020-10-24 01:45:14,166 INFO L78 Accepts]: Start accepts. Automaton has 4969 states and 5305 transitions. Word has length 329 [2020-10-24 01:45:14,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:45:14,167 INFO L481 AbstractCegarLoop]: Abstraction has 4969 states and 5305 transitions. [2020-10-24 01:45:14,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 01:45:14,167 INFO L276 IsEmpty]: Start isEmpty. Operand 4969 states and 5305 transitions. [2020-10-24 01:45:14,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2020-10-24 01:45:14,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:45:14,177 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-24 01:45:14,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-24 01:45:14,177 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:45:14,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:45:14,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1321347695, now seen corresponding path program 1 times [2020-10-24 01:45:14,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:45:14,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180035904] [2020-10-24 01:45:14,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:45:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:14,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:45:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:14,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-24 01:45:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:14,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-24 01:45:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:14,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-24 01:45:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:14,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-24 01:45:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:45:14,605 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 313 proven. 23 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-24 01:45:14,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180035904] [2020-10-24 01:45:14,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:45:14,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 01:45:14,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276038051] [2020-10-24 01:45:14,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 01:45:14,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:45:14,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 01:45:14,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-24 01:45:14,608 INFO L87 Difference]: Start difference. First operand 4969 states and 5305 transitions. Second operand 10 states. [2020-10-24 01:45:19,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:45:19,205 INFO L93 Difference]: Finished difference Result 8257 states and 8808 transitions. [2020-10-24 01:45:19,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-24 01:45:19,206 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 351 [2020-10-24 01:45:19,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:45:19,210 INFO L225 Difference]: With dead ends: 8257 [2020-10-24 01:45:19,211 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 01:45:19,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2020-10-24 01:45:19,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 01:45:19,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 01:45:19,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 01:45:19,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 01:45:19,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 351 [2020-10-24 01:45:19,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:45:19,222 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 01:45:19,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 01:45:19,222 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 01:45:19,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 01:45:19,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-24 01:45:19,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 01:45:21,804 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 100 [2020-10-24 01:45:23,700 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2020-10-24 01:45:32,967 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-10-24 01:45:47,624 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 240 [2020-10-24 01:46:11,157 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 240 [2020-10-24 01:46:40,147 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 240 [2020-10-24 01:46:40,339 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 240 [2020-10-24 01:46:40,561 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 240 [2020-10-24 01:46:40,755 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 240 [2020-10-24 01:46:52,453 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 240 [2020-10-24 01:46:52,672 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 240 [2020-10-24 01:46:52,865 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 240 [2020-10-24 01:47:04,974 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 240 [2020-10-24 01:47:17,390 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:47:18,585 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:47:20,234 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 249 DAG size of output: 86 [2020-10-24 01:47:24,125 WARN L193 SmtUtils]: Spent 3.88 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:47:25,550 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 208 DAG size of output: 83 [2020-10-24 01:47:26,743 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:47:30,591 WARN L193 SmtUtils]: Spent 3.84 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:47:34,478 WARN L193 SmtUtils]: Spent 3.88 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:47:38,348 WARN L193 SmtUtils]: Spent 3.86 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:47:40,388 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:47:42,418 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:47:44,469 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:47:48,348 WARN L193 SmtUtils]: Spent 3.87 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:47:49,534 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:47:50,936 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 248 DAG size of output: 83 [2020-10-24 01:47:52,648 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 250 DAG size of output: 83 [2020-10-24 01:47:54,250 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 203 DAG size of output: 90 [2020-10-24 01:47:55,523 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 199 DAG size of output: 83 [2020-10-24 01:47:56,715 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:47:58,201 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 203 DAG size of output: 90 [2020-10-24 01:47:59,395 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:48:00,594 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:48:04,489 WARN L193 SmtUtils]: Spent 3.89 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:48:08,383 WARN L193 SmtUtils]: Spent 3.89 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:48:09,734 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 206 DAG size of output: 84 [2020-10-24 01:48:10,933 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:48:12,917 WARN L193 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 237 DAG size of output: 84 [2020-10-24 01:48:14,971 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:48:18,891 WARN L193 SmtUtils]: Spent 3.91 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:48:20,394 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 250 DAG size of output: 84 [2020-10-24 01:48:23,351 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 254 DAG size of output: 96 [2020-10-24 01:48:27,289 WARN L193 SmtUtils]: Spent 3.93 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:48:28,761 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 245 DAG size of output: 83 [2020-10-24 01:48:30,219 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 204 DAG size of output: 84 [2020-10-24 01:48:31,605 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 249 DAG size of output: 83 [2020-10-24 01:48:32,911 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 196 DAG size of output: 80 [2020-10-24 01:48:34,355 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 197 DAG size of output: 82 [2020-10-24 01:48:38,298 WARN L193 SmtUtils]: Spent 3.93 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:48:39,513 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:48:40,719 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:48:44,691 WARN L193 SmtUtils]: Spent 3.96 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:48:46,076 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 249 DAG size of output: 83 [2020-10-24 01:48:47,292 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:48:51,275 WARN L193 SmtUtils]: Spent 3.97 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:48:52,720 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 206 DAG size of output: 83 [2020-10-24 01:48:56,690 WARN L193 SmtUtils]: Spent 3.96 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:48:59,464 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 253 DAG size of output: 96 [2020-10-24 01:49:03,479 WARN L193 SmtUtils]: Spent 4.01 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:49:04,828 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 204 DAG size of output: 87 [2020-10-24 01:49:06,100 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:49:07,468 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 204 DAG size of output: 82 [2020-10-24 01:49:08,930 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 203 DAG size of output: 81 [2020-10-24 01:49:10,160 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:49:11,603 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 203 DAG size of output: 84 [2020-10-24 01:49:12,922 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 196 DAG size of output: 81 [2020-10-24 01:49:14,256 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 198 DAG size of output: 86 [2020-10-24 01:49:15,486 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:49:16,716 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:49:20,744 WARN L193 SmtUtils]: Spent 4.02 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:49:24,757 WARN L193 SmtUtils]: Spent 4.00 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:49:28,785 WARN L193 SmtUtils]: Spent 4.01 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:49:30,633 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 248 DAG size of output: 90 [2020-10-24 01:49:32,368 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 249 DAG size of output: 86 [2020-10-24 01:49:36,405 WARN L193 SmtUtils]: Spent 4.03 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:49:37,859 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 248 DAG size of output: 83 [2020-10-24 01:49:39,990 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:49:41,399 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 204 DAG size of output: 83 [2020-10-24 01:49:45,450 WARN L193 SmtUtils]: Spent 4.04 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:49:47,472 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 237 DAG size of output: 84 [2020-10-24 01:49:51,557 WARN L193 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:49:55,632 WARN L193 SmtUtils]: Spent 4.07 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:49:59,738 WARN L193 SmtUtils]: Spent 4.10 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:50:01,899 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:50:03,270 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 204 DAG size of output: 87 [2020-10-24 01:50:07,346 WARN L193 SmtUtils]: Spent 4.07 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:50:10,253 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 249 DAG size of output: 93 [2020-10-24 01:50:11,906 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 257 DAG size of output: 82 [2020-10-24 01:50:13,176 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:50:14,445 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:50:15,928 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 205 DAG size of output: 84 [2020-10-24 01:50:17,190 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:50:18,472 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:50:22,568 WARN L193 SmtUtils]: Spent 4.09 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:50:26,661 WARN L193 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:50:28,279 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 197 DAG size of output: 89 [2020-10-24 01:50:29,695 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 205 DAG size of output: 84 [2020-10-24 01:50:30,983 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:50:32,374 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 197 DAG size of output: 82 [2020-10-24 01:50:34,066 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 249 DAG size of output: 82 [2020-10-24 01:50:38,207 WARN L193 SmtUtils]: Spent 4.13 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:50:42,362 WARN L193 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:50:46,507 WARN L193 SmtUtils]: Spent 4.14 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:50:48,170 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 203 DAG size of output: 88 [2020-10-24 01:50:50,374 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:50:52,470 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 237 DAG size of output: 84 [2020-10-24 01:50:56,638 WARN L193 SmtUtils]: Spent 4.16 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:50:58,222 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 236 DAG size of output: 85 [2020-10-24 01:51:02,406 WARN L193 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:51:06,597 WARN L193 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:51:07,905 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:51:10,667 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 249 DAG size of output: 93 [2020-10-24 01:51:12,242 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 251 DAG size of output: 85 [2020-10-24 01:51:13,558 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:51:15,275 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 249 DAG size of output: 86 [2020-10-24 01:51:19,484 WARN L193 SmtUtils]: Spent 4.20 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:51:20,800 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:51:25,046 WARN L193 SmtUtils]: Spent 4.24 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:51:26,375 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 192 DAG size of output: 68 [2020-10-24 01:51:27,685 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:51:29,192 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 246 DAG size of output: 82 [2020-10-24 01:51:33,432 WARN L193 SmtUtils]: Spent 4.23 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:51:37,647 WARN L193 SmtUtils]: Spent 4.21 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:51:41,865 WARN L193 SmtUtils]: Spent 4.21 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:51:43,195 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:51:44,725 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 246 DAG size of output: 82 [2020-10-24 01:51:46,042 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:51:50,293 WARN L193 SmtUtils]: Spent 4.24 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:51:51,897 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 236 DAG size of output: 85 [2020-10-24 01:51:54,162 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:51:56,297 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 237 DAG size of output: 84 [2020-10-24 01:51:57,903 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 252 DAG size of output: 83 [2020-10-24 01:51:59,367 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 203 DAG size of output: 86 [2020-10-24 01:52:00,703 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:52:02,709 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 258 DAG size of output: 88 [2020-10-24 01:52:04,048 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 198 DAG size of output: 70 [2020-10-24 01:52:06,032 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 250 DAG size of output: 84 [2020-10-24 01:52:07,582 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 248 DAG size of output: 83 [2020-10-24 01:52:08,907 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:52:10,239 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:52:11,589 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-24 01:52:15,869 WARN L193 SmtUtils]: Spent 4.27 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:52:17,228 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 243 DAG size of output: 70 [2020-10-24 01:52:21,527 WARN L193 SmtUtils]: Spent 4.29 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:52:25,815 WARN L193 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:52:27,766 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 251 DAG size of output: 90 [2020-10-24 01:52:29,106 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:52:30,677 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 199 DAG size of output: 84 [2020-10-24 01:52:32,229 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 248 DAG size of output: 83 [2020-10-24 01:52:33,870 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 253 DAG size of output: 84 [2020-10-24 01:52:35,413 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 211 DAG size of output: 86 [2020-10-24 01:52:36,898 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 202 DAG size of output: 83 [2020-10-24 01:52:38,241 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:52:39,750 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 246 DAG size of output: 83 [2020-10-24 01:52:41,091 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:52:43,372 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:52:45,662 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:52:49,994 WARN L193 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:52:52,289 WARN L193 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:52:56,613 WARN L193 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:52:58,286 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 236 DAG size of output: 85 [2020-10-24 01:53:00,260 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 260 DAG size of output: 88 [2020-10-24 01:53:01,721 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 197 DAG size of output: 84 [2020-10-24 01:53:03,075 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:53:07,434 WARN L193 SmtUtils]: Spent 4.35 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:53:08,886 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 199 DAG size of output: 83 [2020-10-24 01:53:10,539 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 204 DAG size of output: 85 [2020-10-24 01:53:11,904 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:53:16,256 WARN L193 SmtUtils]: Spent 4.34 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:53:17,907 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 236 DAG size of output: 85 [2020-10-24 01:53:22,263 WARN L193 SmtUtils]: Spent 4.35 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:53:26,618 WARN L193 SmtUtils]: Spent 4.35 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:53:28,165 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 249 DAG size of output: 83 [2020-10-24 01:53:32,559 WARN L193 SmtUtils]: Spent 4.39 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:53:34,892 WARN L193 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:53:39,300 WARN L193 SmtUtils]: Spent 4.40 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:53:40,956 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 236 DAG size of output: 85 [2020-10-24 01:53:43,307 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:53:45,649 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:53:50,051 WARN L193 SmtUtils]: Spent 4.39 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:53:52,425 WARN L193 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:53:56,845 WARN L193 SmtUtils]: Spent 4.41 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:53:58,220 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:54:00,033 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 251 DAG size of output: 88 [2020-10-24 01:54:01,426 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 243 DAG size of output: 70 [2020-10-24 01:54:05,858 WARN L193 SmtUtils]: Spent 4.42 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:54:07,240 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:54:08,631 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:54:10,385 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 212 DAG size of output: 87 [2020-10-24 01:54:14,813 WARN L193 SmtUtils]: Spent 4.42 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:54:19,286 WARN L193 SmtUtils]: Spent 4.46 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:54:20,889 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 246 DAG size of output: 82 [2020-10-24 01:54:25,355 WARN L193 SmtUtils]: Spent 4.46 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:54:27,798 WARN L193 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:54:32,595 WARN L193 SmtUtils]: Spent 4.79 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:54:37,431 WARN L193 SmtUtils]: Spent 4.83 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:54:42,315 WARN L193 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:54:43,805 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:54:45,295 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:54:49,964 WARN L193 SmtUtils]: Spent 4.66 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:54:51,583 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 202 DAG size of output: 86 [2020-10-24 01:54:56,156 WARN L193 SmtUtils]: Spent 4.57 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:54:58,193 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 245 DAG size of output: 87 [2020-10-24 01:54:59,770 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 200 DAG size of output: 83 [2020-10-24 01:55:01,263 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 198 DAG size of output: 70 [2020-10-24 01:55:02,731 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:55:04,444 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 203 DAG size of output: 83 [2020-10-24 01:55:05,956 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:55:07,448 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:55:09,206 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 252 DAG size of output: 83 [2020-10-24 01:55:11,094 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-10-24 01:55:12,568 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:55:14,021 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:55:15,784 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 204 DAG size of output: 83 [2020-10-24 01:55:20,429 WARN L193 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:55:21,919 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 197 DAG size of output: 80 [2020-10-24 01:55:23,572 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 205 DAG size of output: 86 [2020-10-24 01:55:25,146 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 203 DAG size of output: 83 [2020-10-24 01:55:26,658 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 196 DAG size of output: 80 [2020-10-24 01:55:31,280 WARN L193 SmtUtils]: Spent 4.61 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:55:35,862 WARN L193 SmtUtils]: Spent 4.57 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:55:37,304 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:55:38,993 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 198 DAG size of output: 84 [2020-10-24 01:55:41,208 WARN L193 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 261 DAG size of output: 85 [2020-10-24 01:55:42,711 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 192 DAG size of output: 68 [2020-10-24 01:55:44,128 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:55:46,174 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 250 DAG size of output: 84 [2020-10-24 01:55:47,739 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 202 DAG size of output: 83 [2020-10-24 01:55:49,265 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 199 DAG size of output: 83 [2020-10-24 01:55:53,756 WARN L193 SmtUtils]: Spent 4.48 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:55:58,224 WARN L193 SmtUtils]: Spent 4.46 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:55:59,837 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 207 DAG size of output: 84 [2020-10-24 01:56:04,316 WARN L193 SmtUtils]: Spent 4.47 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:56:08,819 WARN L193 SmtUtils]: Spent 4.49 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:56:10,456 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 198 DAG size of output: 81 [2020-10-24 01:56:14,969 WARN L193 SmtUtils]: Spent 4.50 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:56:16,982 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 250 DAG size of output: 83 [2020-10-24 01:56:21,492 WARN L193 SmtUtils]: Spent 4.50 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:56:23,916 WARN L193 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:56:28,421 WARN L193 SmtUtils]: Spent 4.50 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:56:32,946 WARN L193 SmtUtils]: Spent 4.52 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:56:37,481 WARN L193 SmtUtils]: Spent 4.53 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:56:39,912 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:56:42,327 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:56:44,740 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 238 DAG size of output: 89 [2020-10-24 01:56:49,272 WARN L193 SmtUtils]: Spent 4.52 s on a formula simplification. DAG size of input: 303 DAG size of output: 101 [2020-10-24 01:56:51,003 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 236 DAG size of output: 85 [2020-10-24 01:56:52,580 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 200 DAG size of output: 83 [2020-10-24 01:56:54,334 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 206 DAG size of output: 87 [2020-10-24 01:56:55,752 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:56:57,208 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:56:58,658 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:57:00,091 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:57:01,536 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 197 DAG size of output: 70 [2020-10-24 01:57:02,964 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:57:04,409 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-10-24 01:57:05,968 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 203 DAG size of output: 82