/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_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:48:42,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:48:42,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:48:42,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 05:48:42,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:48:42,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:48:42,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:48:42,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:48:42,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:48:42,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:48:42,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:48:42,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:48:42,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:48:42,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:48:42,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:48:42,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:48:42,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 05:48:42,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:48:42,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:48:42,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:48:42,244 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 05:48:42,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:48:42,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:48:42,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:48:42,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:48:42,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:48:42,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:48:42,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:48:42,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:48:42,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:48:42,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:48:42,278 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:48:42,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:48:42,278 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:48:42,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:48:42,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:48:42,280 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:48:42,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:48:42,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:48:42,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:48:42,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:48:42,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:48:42,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:48:42,282 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:48:42,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:48:42,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:48:42,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:48:42,733 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:48:42,733 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:48:42,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-11-07 05:48:42,818 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/951cdacc3/ef7513fb2a144845a3ebb7b79b2223c4/FLAG3074ebb6c [2020-11-07 05:48:43,566 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:48:43,567 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-11-07 05:48:43,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/951cdacc3/ef7513fb2a144845a3ebb7b79b2223c4/FLAG3074ebb6c [2020-11-07 05:48:43,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/951cdacc3/ef7513fb2a144845a3ebb7b79b2223c4 [2020-11-07 05:48:43,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:48:43,866 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:48:43,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:48:43,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:48:43,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:48:43,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:48:43" (1/1) ... [2020-11-07 05:48:43,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7185a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:48:43, skipping insertion in model container [2020-11-07 05:48:43,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:48:43" (1/1) ... [2020-11-07 05:48:43,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:48:43,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:48:44,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:48:44,402 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:48:44,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:48:44,612 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:48:44,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:48:44 WrapperNode [2020-11-07 05:48:44,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:48:44,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:48:44,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:48:44,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:48:44,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:48:44" (1/1) ... [2020-11-07 05:48:44,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:48:44" (1/1) ... [2020-11-07 05:48:44,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:48:44" (1/1) ... [2020-11-07 05:48:44,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:48:44" (1/1) ... [2020-11-07 05:48:44,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:48:44" (1/1) ... [2020-11-07 05:48:44,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:48:44" (1/1) ... [2020-11-07 05:48:44,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:48:44" (1/1) ... [2020-11-07 05:48:44,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:48:44,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:48:44,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:48:44,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:48:44,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:48:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:48:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:48:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:48:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:48:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-07 05:48:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:48:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-07 05:48:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:48:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:48:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:48:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:48:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 05:48:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 05:48:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:48:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:48:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:48:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:48:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:48:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:48:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:48:46,250 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:48:46,251 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 05:48:46,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:48:46 BoogieIcfgContainer [2020-11-07 05:48:46,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:48:46,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:48:46,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:48:46,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:48:46,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:48:43" (1/3) ... [2020-11-07 05:48:46,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc30ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:48:46, skipping insertion in model container [2020-11-07 05:48:46,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:48:44" (2/3) ... [2020-11-07 05:48:46,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc30ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:48:46, skipping insertion in model container [2020-11-07 05:48:46,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:48:46" (3/3) ... [2020-11-07 05:48:46,264 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-11-07 05:48:46,281 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:48:46,285 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:48:46,305 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:48:46,330 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:48:46,331 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:48:46,331 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:48:46,331 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:48:46,331 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:48:46,332 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:48:46,332 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:48:46,332 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:48:46,359 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states. [2020-11-07 05:48:46,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-11-07 05:48:46,388 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:48:46,389 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] [2020-11-07 05:48:46,389 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:48:46,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:48:46,396 INFO L82 PathProgramCache]: Analyzing trace with hash 2146575579, now seen corresponding path program 1 times [2020-11-07 05:48:46,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:48:46,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622102148] [2020-11-07 05:48:46,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:48:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:48:47,149 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-07 05:48:47,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:48:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:48:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:48:47,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622102148] [2020-11-07 05:48:47,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:48:47,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 05:48:47,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542441622] [2020-11-07 05:48:47,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 05:48:47,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:48:47,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 05:48:47,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 05:48:47,332 INFO L87 Difference]: Start difference. First operand 539 states. Second operand 4 states. [2020-11-07 05:48:50,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:48:50,478 INFO L93 Difference]: Finished difference Result 1409 states and 1864 transitions. [2020-11-07 05:48:50,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 05:48:50,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-11-07 05:48:50,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:48:50,508 INFO L225 Difference]: With dead ends: 1409 [2020-11-07 05:48:50,509 INFO L226 Difference]: Without dead ends: 797 [2020-11-07 05:48:50,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 05:48:50,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-11-07 05:48:50,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 674. [2020-11-07 05:48:50,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 674 states. [2020-11-07 05:48:50,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 822 transitions. [2020-11-07 05:48:50,795 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 822 transitions. Word has length 127 [2020-11-07 05:48:50,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:48:50,797 INFO L481 AbstractCegarLoop]: Abstraction has 674 states and 822 transitions. [2020-11-07 05:48:50,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 05:48:50,797 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 822 transitions. [2020-11-07 05:48:50,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-11-07 05:48:50,811 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:48:50,812 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:48:50,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:48:50,814 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:48:50,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:48:50,815 INFO L82 PathProgramCache]: Analyzing trace with hash 895547947, now seen corresponding path program 1 times [2020-11-07 05:48:50,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:48:50,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812889238] [2020-11-07 05:48:50,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:48:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:48:51,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:48:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:48:51,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:48:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:48:51,217 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:48:51,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812889238] [2020-11-07 05:48:51,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:48:51,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 05:48:51,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823769470] [2020-11-07 05:48:51,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 05:48:51,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:48:51,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 05:48:51,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:48:51,222 INFO L87 Difference]: Start difference. First operand 674 states and 822 transitions. Second operand 10 states. [2020-11-07 05:48:51,449 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-07 05:48:51,955 WARN L194 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-11-07 05:48:52,158 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-11-07 05:48:52,348 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-07 05:48:58,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:48:58,321 INFO L93 Difference]: Finished difference Result 2156 states and 2731 transitions. [2020-11-07 05:48:58,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-07 05:48:58,322 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2020-11-07 05:48:58,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:48:58,336 INFO L225 Difference]: With dead ends: 2156 [2020-11-07 05:48:58,336 INFO L226 Difference]: Without dead ends: 1512 [2020-11-07 05:48:58,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=207, Invalid=663, Unknown=0, NotChecked=0, Total=870 [2020-11-07 05:48:58,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2020-11-07 05:48:58,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1217. [2020-11-07 05:48:58,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1217 states. [2020-11-07 05:48:58,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1474 transitions. [2020-11-07 05:48:58,594 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1474 transitions. Word has length 145 [2020-11-07 05:48:58,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:48:58,595 INFO L481 AbstractCegarLoop]: Abstraction has 1217 states and 1474 transitions. [2020-11-07 05:48:58,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 05:48:58,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1474 transitions. [2020-11-07 05:48:58,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-11-07 05:48:58,607 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:48:58,607 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:48:58,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:48:58,608 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:48:58,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:48:58,609 INFO L82 PathProgramCache]: Analyzing trace with hash 140033373, now seen corresponding path program 1 times [2020-11-07 05:48:58,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:48:58,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809098704] [2020-11-07 05:48:58,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:48:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:48:58,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:48:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:48:58,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:48:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:48:58,968 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:48:58,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809098704] [2020-11-07 05:48:58,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:48:58,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:48:58,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049172648] [2020-11-07 05:48:58,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:48:58,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:48:58,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:48:58,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:48:58,980 INFO L87 Difference]: Start difference. First operand 1217 states and 1474 transitions. Second operand 8 states. [2020-11-07 05:48:59,247 WARN L194 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-11-07 05:49:00,553 WARN L194 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-11-07 05:49:04,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:49:04,691 INFO L93 Difference]: Finished difference Result 4174 states and 5641 transitions. [2020-11-07 05:49:04,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-07 05:49:04,695 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 149 [2020-11-07 05:49:04,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:49:04,725 INFO L225 Difference]: With dead ends: 4174 [2020-11-07 05:49:04,726 INFO L226 Difference]: Without dead ends: 2987 [2020-11-07 05:49:04,734 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-11-07 05:49:04,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2020-11-07 05:49:05,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2451. [2020-11-07 05:49:05,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2451 states. [2020-11-07 05:49:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 3099 transitions. [2020-11-07 05:49:05,339 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 3099 transitions. Word has length 149 [2020-11-07 05:49:05,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:49:05,339 INFO L481 AbstractCegarLoop]: Abstraction has 2451 states and 3099 transitions. [2020-11-07 05:49:05,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:49:05,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 3099 transitions. [2020-11-07 05:49:05,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-11-07 05:49:05,350 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:49:05,351 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:49:05,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 05:49:05,351 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:49:05,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:49:05,352 INFO L82 PathProgramCache]: Analyzing trace with hash -427398345, now seen corresponding path program 1 times [2020-11-07 05:49:05,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:49:05,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619668110] [2020-11-07 05:49:05,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:49:05,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:05,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:49:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:05,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:49:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:05,589 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:49:05,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619668110] [2020-11-07 05:49:05,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:49:05,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 05:49:05,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377164897] [2020-11-07 05:49:05,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:49:05,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:49:05,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:49:05,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:49:05,592 INFO L87 Difference]: Start difference. First operand 2451 states and 3099 transitions. Second operand 7 states. [2020-11-07 05:49:05,798 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-07 05:49:09,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:49:09,313 INFO L93 Difference]: Finished difference Result 6541 states and 8868 transitions. [2020-11-07 05:49:09,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 05:49:09,314 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-11-07 05:49:09,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:49:09,351 INFO L225 Difference]: With dead ends: 6541 [2020-11-07 05:49:09,351 INFO L226 Difference]: Without dead ends: 4120 [2020-11-07 05:49:09,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:49:09,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4120 states. [2020-11-07 05:49:10,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4120 to 3990. [2020-11-07 05:49:10,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3990 states. [2020-11-07 05:49:10,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 5069 transitions. [2020-11-07 05:49:10,390 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 5069 transitions. Word has length 165 [2020-11-07 05:49:10,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:49:10,390 INFO L481 AbstractCegarLoop]: Abstraction has 3990 states and 5069 transitions. [2020-11-07 05:49:10,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:49:10,391 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 5069 transitions. [2020-11-07 05:49:10,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-11-07 05:49:10,405 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:49:10,405 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:49:10,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 05:49:10,406 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:49:10,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:49:10,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1969312034, now seen corresponding path program 1 times [2020-11-07 05:49:10,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:49:10,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434588294] [2020-11-07 05:49:10,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:49:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:10,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:49:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:10,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:49:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:10,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-11-07 05:49:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:10,734 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-07 05:49:10,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434588294] [2020-11-07 05:49:10,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:49:10,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:49:10,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597376152] [2020-11-07 05:49:10,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:49:10,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:49:10,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:49:10,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:49:10,737 INFO L87 Difference]: Start difference. First operand 3990 states and 5069 transitions. Second operand 8 states. [2020-11-07 05:49:10,947 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-07 05:49:14,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:49:14,345 INFO L93 Difference]: Finished difference Result 8919 states and 11563 transitions. [2020-11-07 05:49:14,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 05:49:14,346 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 190 [2020-11-07 05:49:14,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:49:14,382 INFO L225 Difference]: With dead ends: 8919 [2020-11-07 05:49:14,383 INFO L226 Difference]: Without dead ends: 4959 [2020-11-07 05:49:14,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-11-07 05:49:14,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4959 states. [2020-11-07 05:49:15,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4959 to 4934. [2020-11-07 05:49:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4934 states. [2020-11-07 05:49:15,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4934 states to 4934 states and 6262 transitions. [2020-11-07 05:49:15,561 INFO L78 Accepts]: Start accepts. Automaton has 4934 states and 6262 transitions. Word has length 190 [2020-11-07 05:49:15,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:49:15,561 INFO L481 AbstractCegarLoop]: Abstraction has 4934 states and 6262 transitions. [2020-11-07 05:49:15,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:49:15,561 INFO L276 IsEmpty]: Start isEmpty. Operand 4934 states and 6262 transitions. [2020-11-07 05:49:15,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-11-07 05:49:15,576 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:49:15,577 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:49:15,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 05:49:15,577 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:49:15,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:49:15,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1589549857, now seen corresponding path program 1 times [2020-11-07 05:49:15,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:49:15,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978357731] [2020-11-07 05:49:15,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:49:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:15,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:49:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:15,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:49:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:15,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 05:49:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:15,827 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-07 05:49:15,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978357731] [2020-11-07 05:49:15,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:49:15,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:49:15,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072667154] [2020-11-07 05:49:15,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:49:15,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:49:15,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:49:15,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:49:15,833 INFO L87 Difference]: Start difference. First operand 4934 states and 6262 transitions. Second operand 7 states. [2020-11-07 05:49:19,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:49:19,861 INFO L93 Difference]: Finished difference Result 10309 states and 12992 transitions. [2020-11-07 05:49:19,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 05:49:19,862 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-11-07 05:49:19,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:49:19,901 INFO L225 Difference]: With dead ends: 10309 [2020-11-07 05:49:19,901 INFO L226 Difference]: Without dead ends: 5214 [2020-11-07 05:49:19,923 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 [2020-11-07 05:49:19,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5214 states. [2020-11-07 05:49:21,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5214 to 5025. [2020-11-07 05:49:21,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5025 states. [2020-11-07 05:49:21,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5025 states to 5025 states and 6071 transitions. [2020-11-07 05:49:21,166 INFO L78 Accepts]: Start accepts. Automaton has 5025 states and 6071 transitions. Word has length 195 [2020-11-07 05:49:21,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:49:21,166 INFO L481 AbstractCegarLoop]: Abstraction has 5025 states and 6071 transitions. [2020-11-07 05:49:21,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:49:21,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5025 states and 6071 transitions. [2020-11-07 05:49:21,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-11-07 05:49:21,181 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:49:21,181 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:49:21,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 05:49:21,182 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:49:21,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:49:21,182 INFO L82 PathProgramCache]: Analyzing trace with hash -518552943, now seen corresponding path program 1 times [2020-11-07 05:49:21,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:49:21,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197114680] [2020-11-07 05:49:21,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:49:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:21,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:49:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:21,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:49:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:21,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 05:49:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:21,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 05:49:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 87 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-07 05:49:21,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197114680] [2020-11-07 05:49:21,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:49:21,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-07 05:49:21,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162432012] [2020-11-07 05:49:21,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 05:49:21,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:49:21,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 05:49:21,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-07 05:49:21,470 INFO L87 Difference]: Start difference. First operand 5025 states and 6071 transitions. Second operand 9 states. [2020-11-07 05:49:21,688 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-07 05:49:27,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:49:27,097 INFO L93 Difference]: Finished difference Result 11079 states and 13335 transitions. [2020-11-07 05:49:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 05:49:27,098 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 209 [2020-11-07 05:49:27,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:49:27,132 INFO L225 Difference]: With dead ends: 11079 [2020-11-07 05:49:27,132 INFO L226 Difference]: Without dead ends: 6094 [2020-11-07 05:49:27,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2020-11-07 05:49:27,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6094 states. [2020-11-07 05:49:28,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6094 to 4701. [2020-11-07 05:49:28,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4701 states. [2020-11-07 05:49:28,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4701 states to 4701 states and 5315 transitions. [2020-11-07 05:49:28,135 INFO L78 Accepts]: Start accepts. Automaton has 4701 states and 5315 transitions. Word has length 209 [2020-11-07 05:49:28,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:49:28,135 INFO L481 AbstractCegarLoop]: Abstraction has 4701 states and 5315 transitions. [2020-11-07 05:49:28,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 05:49:28,135 INFO L276 IsEmpty]: Start isEmpty. Operand 4701 states and 5315 transitions. [2020-11-07 05:49:28,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-11-07 05:49:28,146 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:49:28,147 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-11-07 05:49:28,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 05:49:28,147 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:49:28,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:49:28,148 INFO L82 PathProgramCache]: Analyzing trace with hash -343891454, now seen corresponding path program 1 times [2020-11-07 05:49:28,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:49:28,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1413754853] [2020-11-07 05:49:28,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:49:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:28,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:49:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:28,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:49:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:28,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 05:49:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:28,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-11-07 05:49:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:28,577 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 105 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-07 05:49:28,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1413754853] [2020-11-07 05:49:28,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:49:28,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 05:49:28,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842313678] [2020-11-07 05:49:28,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 05:49:28,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:49:28,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 05:49:28,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:49:28,581 INFO L87 Difference]: Start difference. First operand 4701 states and 5315 transitions. Second operand 10 states. [2020-11-07 05:49:29,043 WARN L194 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-11-07 05:49:35,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:49:35,420 INFO L93 Difference]: Finished difference Result 8114 states and 9194 transitions. [2020-11-07 05:49:35,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-07 05:49:35,429 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 221 [2020-11-07 05:49:35,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:49:35,458 INFO L225 Difference]: With dead ends: 8114 [2020-11-07 05:49:35,458 INFO L226 Difference]: Without dead ends: 3457 [2020-11-07 05:49:35,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2020-11-07 05:49:35,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3457 states. [2020-11-07 05:49:36,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3457 to 3267. [2020-11-07 05:49:36,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3267 states. [2020-11-07 05:49:36,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3267 states to 3267 states and 3580 transitions. [2020-11-07 05:49:36,169 INFO L78 Accepts]: Start accepts. Automaton has 3267 states and 3580 transitions. Word has length 221 [2020-11-07 05:49:36,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:49:36,169 INFO L481 AbstractCegarLoop]: Abstraction has 3267 states and 3580 transitions. [2020-11-07 05:49:36,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 05:49:36,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3267 states and 3580 transitions. [2020-11-07 05:49:36,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-11-07 05:49:36,180 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:49:36,181 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-11-07 05:49:36,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 05:49:36,181 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:49:36,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:49:36,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1658482033, now seen corresponding path program 1 times [2020-11-07 05:49:36,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:49:36,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778549332] [2020-11-07 05:49:36,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:49:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:36,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:49:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:36,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:49:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:36,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-11-07 05:49:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:36,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-11-07 05:49:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:36,452 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 101 proven. 11 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-11-07 05:49:36,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778549332] [2020-11-07 05:49:36,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:49:36,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:49:36,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518913923] [2020-11-07 05:49:36,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:49:36,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:49:36,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:49:36,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:49:36,454 INFO L87 Difference]: Start difference. First operand 3267 states and 3580 transitions. Second operand 7 states. [2020-11-07 05:49:36,704 WARN L194 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-11-07 05:49:40,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:49:40,555 INFO L93 Difference]: Finished difference Result 5546 states and 6066 transitions. [2020-11-07 05:49:40,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 05:49:40,561 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-11-07 05:49:40,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:49:40,575 INFO L225 Difference]: With dead ends: 5546 [2020-11-07 05:49:40,575 INFO L226 Difference]: Without dead ends: 3772 [2020-11-07 05:49:40,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-11-07 05:49:40,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3772 states. [2020-11-07 05:49:41,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3772 to 3260. [2020-11-07 05:49:41,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3260 states. [2020-11-07 05:49:41,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3260 states to 3260 states and 3568 transitions. [2020-11-07 05:49:41,352 INFO L78 Accepts]: Start accepts. Automaton has 3260 states and 3568 transitions. Word has length 242 [2020-11-07 05:49:41,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:49:41,352 INFO L481 AbstractCegarLoop]: Abstraction has 3260 states and 3568 transitions. [2020-11-07 05:49:41,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:49:41,352 INFO L276 IsEmpty]: Start isEmpty. Operand 3260 states and 3568 transitions. [2020-11-07 05:49:41,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-11-07 05:49:41,362 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:49:41,362 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-07 05:49:41,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 05:49:41,363 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:49:41,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:49:41,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1916825690, now seen corresponding path program 1 times [2020-11-07 05:49:41,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:49:41,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [415195636] [2020-11-07 05:49:41,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:49:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:41,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:49:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:41,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:49:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:41,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-11-07 05:49:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:41,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 05:49:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:41,712 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 137 proven. 25 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-07 05:49:41,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [415195636] [2020-11-07 05:49:41,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:49:41,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:49:41,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578692332] [2020-11-07 05:49:41,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:49:41,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:49:41,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:49:41,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:49:41,715 INFO L87 Difference]: Start difference. First operand 3260 states and 3568 transitions. Second operand 8 states. [2020-11-07 05:49:44,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:49:44,803 INFO L93 Difference]: Finished difference Result 6778 states and 7470 transitions. [2020-11-07 05:49:44,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 05:49:44,804 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 268 [2020-11-07 05:49:44,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:49:44,815 INFO L225 Difference]: With dead ends: 6778 [2020-11-07 05:49:44,815 INFO L226 Difference]: Without dead ends: 2628 [2020-11-07 05:49:44,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-11-07 05:49:44,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2020-11-07 05:49:45,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2320. [2020-11-07 05:49:45,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2020-11-07 05:49:45,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 2419 transitions. [2020-11-07 05:49:45,479 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 2419 transitions. Word has length 268 [2020-11-07 05:49:45,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:49:45,479 INFO L481 AbstractCegarLoop]: Abstraction has 2320 states and 2419 transitions. [2020-11-07 05:49:45,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:49:45,479 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 2419 transitions. [2020-11-07 05:49:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-11-07 05:49:45,484 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:49:45,484 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, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:49:45,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 05:49:45,485 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:49:45,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:49:45,485 INFO L82 PathProgramCache]: Analyzing trace with hash -627869232, now seen corresponding path program 1 times [2020-11-07 05:49:45,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:49:45,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859194663] [2020-11-07 05:49:45,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:49:45,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:45,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:49:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:45,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:49:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:45,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-11-07 05:49:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:45,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 05:49:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:46,193 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 234 proven. 18 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-11-07 05:49:46,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859194663] [2020-11-07 05:49:46,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:49:46,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-11-07 05:49:46,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365913364] [2020-11-07 05:49:46,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-07 05:49:46,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:49:46,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-07 05:49:46,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-11-07 05:49:46,198 INFO L87 Difference]: Start difference. First operand 2320 states and 2419 transitions. Second operand 14 states. [2020-11-07 05:49:46,524 WARN L194 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-11-07 05:49:46,827 WARN L194 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-11-07 05:49:47,229 WARN L194 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-11-07 05:49:47,462 WARN L194 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-11-07 05:49:47,916 WARN L194 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2020-11-07 05:49:48,635 WARN L194 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-11-07 05:49:49,197 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:49:49,511 WARN L194 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-11-07 05:49:49,806 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-11-07 05:49:50,116 WARN L194 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2020-11-07 05:49:51,193 WARN L194 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-11-07 05:49:52,109 WARN L194 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-11-07 05:49:52,688 WARN L194 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:49:53,300 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 05:49:53,792 WARN L194 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2020-11-07 05:49:55,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:49:55,358 INFO L93 Difference]: Finished difference Result 5131 states and 5347 transitions. [2020-11-07 05:49:55,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-11-07 05:49:55,358 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 299 [2020-11-07 05:49:55,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:49:55,374 INFO L225 Difference]: With dead ends: 5131 [2020-11-07 05:49:55,374 INFO L226 Difference]: Without dead ends: 3791 [2020-11-07 05:49:55,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=527, Invalid=2023, Unknown=0, NotChecked=0, Total=2550 [2020-11-07 05:49:55,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3791 states. [2020-11-07 05:49:56,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3791 to 2962. [2020-11-07 05:49:56,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2962 states. [2020-11-07 05:49:56,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 3091 transitions. [2020-11-07 05:49:56,173 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 3091 transitions. Word has length 299 [2020-11-07 05:49:56,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:49:56,174 INFO L481 AbstractCegarLoop]: Abstraction has 2962 states and 3091 transitions. [2020-11-07 05:49:56,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-07 05:49:56,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 3091 transitions. [2020-11-07 05:49:56,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-11-07 05:49:56,178 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:49:56,178 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:49:56,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 05:49:56,179 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:49:56,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:49:56,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1715465699, now seen corresponding path program 1 times [2020-11-07 05:49:56,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:49:56,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [268383277] [2020-11-07 05:49:56,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:49:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:56,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:49:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:56,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:49:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:56,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 05:49:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:56,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-11-07 05:49:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:49:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 164 proven. 3 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-11-07 05:49:56,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [268383277] [2020-11-07 05:49:56,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:49:56,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 05:49:56,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356021674] [2020-11-07 05:49:56,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 05:49:56,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:49:56,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 05:49:56,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:49:56,826 INFO L87 Difference]: Start difference. First operand 2962 states and 3091 transitions. Second operand 10 states. [2020-11-07 05:49:58,409 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:50:00,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:50:00,666 INFO L93 Difference]: Finished difference Result 3367 states and 3500 transitions. [2020-11-07 05:50:00,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 05:50:00,667 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 310 [2020-11-07 05:50:00,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:50:00,675 INFO L225 Difference]: With dead ends: 3367 [2020-11-07 05:50:00,675 INFO L226 Difference]: Without dead ends: 3100 [2020-11-07 05:50:00,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-11-07 05:50:00,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3100 states. [2020-11-07 05:50:01,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3100 to 2638. [2020-11-07 05:50:01,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2638 states. [2020-11-07 05:50:01,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2638 states to 2638 states and 2744 transitions. [2020-11-07 05:50:01,299 INFO L78 Accepts]: Start accepts. Automaton has 2638 states and 2744 transitions. Word has length 310 [2020-11-07 05:50:01,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:50:01,299 INFO L481 AbstractCegarLoop]: Abstraction has 2638 states and 2744 transitions. [2020-11-07 05:50:01,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 05:50:01,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2638 states and 2744 transitions. [2020-11-07 05:50:01,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-11-07 05:50:01,304 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:50:01,304 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-07 05:50:01,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 05:50:01,305 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:50:01,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:50:01,305 INFO L82 PathProgramCache]: Analyzing trace with hash -2029567776, now seen corresponding path program 1 times [2020-11-07 05:50:01,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:50:01,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898571197] [2020-11-07 05:50:01,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:50:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:50:01,602 WARN L194 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-07 05:50:01,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:50:01,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:50:01,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:50:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:50:01,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 05:50:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:50:01,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-11-07 05:50:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:50:01,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-11-07 05:50:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:50:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 339 proven. 29 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-11-07 05:50:02,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898571197] [2020-11-07 05:50:02,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:50:02,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-11-07 05:50:02,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337916828] [2020-11-07 05:50:02,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-07 05:50:02,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:50:02,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-07 05:50:02,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-11-07 05:50:02,058 INFO L87 Difference]: Start difference. First operand 2638 states and 2744 transitions. Second operand 15 states. [2020-11-07 05:50:02,396 WARN L194 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-11-07 05:50:02,707 WARN L194 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-11-07 05:50:03,015 WARN L194 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-11-07 05:50:03,977 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-07 05:50:04,247 WARN L194 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-11-07 05:50:04,390 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-11-07 05:50:04,810 WARN L194 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2020-11-07 05:50:05,054 WARN L194 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-11-07 05:50:05,807 WARN L194 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-11-07 05:50:07,039 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-11-07 05:50:07,257 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:50:07,821 WARN L194 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2020-11-07 05:50:08,375 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:50:08,570 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 05:50:08,848 WARN L194 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 97 [2020-11-07 05:50:09,566 WARN L194 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 96 [2020-11-07 05:50:10,021 WARN L194 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-11-07 05:50:10,709 WARN L194 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2020-11-07 05:50:13,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:50:13,507 INFO L93 Difference]: Finished difference Result 4913 states and 5110 transitions. [2020-11-07 05:50:13,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-11-07 05:50:13,508 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 362 [2020-11-07 05:50:13,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:50:13,518 INFO L225 Difference]: With dead ends: 4913 [2020-11-07 05:50:13,519 INFO L226 Difference]: Without dead ends: 2767 [2020-11-07 05:50:13,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 959 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=657, Invalid=2535, Unknown=0, NotChecked=0, Total=3192 [2020-11-07 05:50:13,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2020-11-07 05:50:13,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 1485. [2020-11-07 05:50:13,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1485 states. [2020-11-07 05:50:13,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1522 transitions. [2020-11-07 05:50:13,966 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1522 transitions. Word has length 362 [2020-11-07 05:50:13,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:50:13,967 INFO L481 AbstractCegarLoop]: Abstraction has 1485 states and 1522 transitions. [2020-11-07 05:50:13,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-07 05:50:13,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1522 transitions. [2020-11-07 05:50:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2020-11-07 05:50:13,972 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:50:13,972 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-11-07 05:50:13,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-07 05:50:13,973 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:50:13,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:50:13,973 INFO L82 PathProgramCache]: Analyzing trace with hash 695464445, now seen corresponding path program 1 times [2020-11-07 05:50:13,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:50:13,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111746668] [2020-11-07 05:50:13,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:50:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:50:14,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:50:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:50:14,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-11-07 05:50:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:50:14,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-11-07 05:50:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:50:14,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-11-07 05:50:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:50:14,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-11-07 05:50:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:50:14,573 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 232 proven. 4 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-11-07 05:50:14,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111746668] [2020-11-07 05:50:14,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:50:14,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 05:50:14,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117016369] [2020-11-07 05:50:14,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 05:50:14,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:50:14,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 05:50:14,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:50:14,576 INFO L87 Difference]: Start difference. First operand 1485 states and 1522 transitions. Second operand 10 states. [2020-11-07 05:50:18,036 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:50:18,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:50:18,290 INFO L93 Difference]: Finished difference Result 2537 states and 2602 transitions. [2020-11-07 05:50:18,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 05:50:18,291 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 383 [2020-11-07 05:50:18,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:50:18,293 INFO L225 Difference]: With dead ends: 2537 [2020-11-07 05:50:18,293 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 05:50:18,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-11-07 05:50:18,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 05:50:18,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 05:50:18,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 05:50:18,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 05:50:18,299 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 383 [2020-11-07 05:50:18,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:50:18,299 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 05:50:18,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 05:50:18,299 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 05:50:18,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 05:50:18,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-07 05:50:18,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 05:50:20,734 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-07 05:50:41,448 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 188 [2020-11-07 05:51:23,995 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 144 [2020-11-07 05:51:24,653 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 173 [2020-11-07 05:51:25,089 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 144 [2020-11-07 05:51:25,732 WARN L194 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 173 [2020-11-07 05:51:28,996 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2020-11-07 05:51:53,571 WARN L194 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 05:51:54,736 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 215 DAG size of output: 79 [2020-11-07 05:51:57,542 WARN L194 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:51:58,999 WARN L194 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 219 DAG size of output: 86 [2020-11-07 05:52:00,482 WARN L194 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 05:52:03,308 WARN L194 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:52:06,096 WARN L194 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:52:08,891 WARN L194 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:52:10,385 WARN L194 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 05:52:11,860 WARN L194 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 05:52:13,063 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:52:15,815 WARN L194 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:52:16,581 WARN L194 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:52:17,675 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 212 DAG size of output: 79 [2020-11-07 05:52:18,866 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2020-11-07 05:52:19,641 WARN L194 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:52:20,741 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 156 DAG size of output: 79 [2020-11-07 05:52:21,513 WARN L194 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:52:22,351 WARN L194 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 77 [2020-11-07 05:52:23,126 WARN L194 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:52:23,896 WARN L194 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:52:26,802 WARN L194 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:52:29,721 WARN L194 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:52:30,989 WARN L194 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 176 DAG size of output: 77 [2020-11-07 05:52:31,774 WARN L194 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:52:33,295 WARN L194 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 05:52:34,798 WARN L194 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 05:52:37,628 WARN L194 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:52:38,757 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 227 DAG size of output: 76 [2020-11-07 05:52:40,594 WARN L194 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 208 DAG size of output: 85 [2020-11-07 05:52:43,360 WARN L194 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-11-07 05:52:44,449 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 206 DAG size of output: 76 [2020-11-07 05:52:45,701 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 168 DAG size of output: 82 [2020-11-07 05:52:47,146 WARN L194 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 204 DAG size of output: 78 [2020-11-07 05:52:48,521 WARN L194 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 152 DAG size of output: 76 [2020-11-07 05:52:49,459 WARN L194 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 77 [2020-11-07 05:52:52,395 WARN L194 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:52:53,190 WARN L194 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:52:54,025 WARN L194 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 74 [2020-11-07 05:52:56,991 WARN L194 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:52:58,453 WARN L194 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 204 DAG size of output: 78 [2020-11-07 05:52:59,243 WARN L194 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:53:02,188 WARN L194 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:53:03,441 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 159 DAG size of output: 80 [2020-11-07 05:53:05,162 WARN L194 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 207 DAG size of output: 85 [2020-11-07 05:53:07,943 WARN L194 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-11-07 05:53:10,936 WARN L194 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 247 DAG size of output: 100 [2020-11-07 05:53:12,354 WARN L194 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 160 DAG size of output: 80 [2020-11-07 05:53:13,185 WARN L194 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:53:14,437 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 172 DAG size of output: 77 [2020-11-07 05:53:15,434 WARN L194 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 81 [2020-11-07 05:53:16,231 WARN L194 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:53:17,663 WARN L194 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 160 DAG size of output: 88 [2020-11-07 05:53:19,063 WARN L194 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 154 DAG size of output: 78 [2020-11-07 05:53:19,959 WARN L194 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 79 [2020-11-07 05:53:20,766 WARN L194 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:53:21,560 WARN L194 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:53:24,533 WARN L194 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:53:27,536 WARN L194 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:53:30,425 WARN L194 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:53:31,228 WARN L194 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:53:32,378 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 213 DAG size of output: 79 [2020-11-07 05:53:35,373 WARN L194 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:53:36,506 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 212 DAG size of output: 79 [2020-11-07 05:53:37,760 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:53:39,127 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 160 DAG size of output: 85 [2020-11-07 05:53:42,007 WARN L194 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:53:43,275 WARN L194 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:53:46,159 WARN L194 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:53:49,030 WARN L194 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:53:51,928 WARN L194 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:53:53,194 WARN L194 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:53:54,644 WARN L194 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 160 DAG size of output: 80 [2020-11-07 05:53:57,664 WARN L194 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:53:59,376 WARN L194 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 210 DAG size of output: 87 [2020-11-07 05:54:00,978 WARN L194 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 211 DAG size of output: 84 [2020-11-07 05:54:01,795 WARN L194 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:54:02,629 WARN L194 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:54:03,795 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 156 DAG size of output: 78 [2020-11-07 05:54:04,615 WARN L194 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:54:05,443 WARN L194 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:54:08,487 WARN L194 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:54:11,546 WARN L194 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:54:12,438 WARN L194 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 77 [2020-11-07 05:54:13,307 WARN L194 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 76 [2020-11-07 05:54:14,138 WARN L194 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:54:15,008 WARN L194 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 76 [2020-11-07 05:54:16,958 WARN L194 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 205 DAG size of output: 88 [2020-11-07 05:54:19,888 WARN L194 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:54:22,932 WARN L194 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:54:25,978 WARN L194 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:54:26,803 WARN L194 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:54:28,113 WARN L194 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:54:29,413 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:54:32,451 WARN L194 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:54:34,099 WARN L194 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 05:54:37,061 WARN L194 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:54:40,044 WARN L194 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:54:40,874 WARN L194 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:54:42,427 WARN L194 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 205 DAG size of output: 86 [2020-11-07 05:54:43,259 WARN L194 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:54:44,092 WARN L194 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:54:44,924 WARN L194 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:54:48,023 WARN L194 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:54:48,850 WARN L194 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:54:51,951 WARN L194 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:54:53,030 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 147 DAG size of output: 66 [2020-11-07 05:54:53,862 WARN L194 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:54:55,155 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 202 DAG size of output: 78 [2020-11-07 05:54:58,264 WARN L194 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:55:01,392 WARN L194 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:55:04,534 WARN L194 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:55:05,373 WARN L194 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:55:06,870 WARN L194 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 207 DAG size of output: 78 [2020-11-07 05:55:07,715 WARN L194 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:55:10,732 WARN L194 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:55:12,353 WARN L194 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 05:55:13,675 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:55:15,294 WARN L194 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 05:55:16,654 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 206 DAG size of output: 77 [2020-11-07 05:55:18,018 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 168 DAG size of output: 80 [2020-11-07 05:55:18,881 WARN L194 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 65 [2020-11-07 05:55:20,565 WARN L194 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 198 DAG size of output: 79 [2020-11-07 05:55:21,416 WARN L194 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:55:22,406 WARN L194 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 78 [2020-11-07 05:55:23,597 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 212 DAG size of output: 79 [2020-11-07 05:55:24,461 WARN L194 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:55:25,301 WARN L194 SmtUtils]: Spent 834.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:55:26,198 WARN L194 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:55:29,540 WARN L194 SmtUtils]: Spent 3.33 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:55:30,449 WARN L194 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:55:33,769 WARN L194 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:55:37,054 WARN L194 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:55:37,927 WARN L194 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:55:39,458 WARN L194 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 157 DAG size of output: 85 [2020-11-07 05:55:40,332 WARN L194 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:55:41,553 WARN L194 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 212 DAG size of output: 79 [2020-11-07 05:55:42,879 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 219 DAG size of output: 78 [2020-11-07 05:55:44,394 WARN L194 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 161 DAG size of output: 85 [2020-11-07 05:55:45,359 WARN L194 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 78 [2020-11-07 05:55:46,241 WARN L194 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:55:47,837 WARN L194 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 201 DAG size of output: 78 [2020-11-07 05:55:48,689 WARN L194 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:55:50,011 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:55:51,345 WARN L194 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:55:54,482 WARN L194 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:55:55,839 WARN L194 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:55:58,984 WARN L194 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:56:00,343 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:56:01,671 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 197 DAG size of output: 76 [2020-11-07 05:56:03,278 WARN L194 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 159 DAG size of output: 80 [2020-11-07 05:56:04,138 WARN L194 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:56:07,356 WARN L194 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:56:08,209 WARN L194 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:56:09,147 WARN L194 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 78 [2020-11-07 05:56:10,026 WARN L194 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:56:13,161 WARN L194 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:56:14,596 WARN L194 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:56:17,827 WARN L194 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:56:19,678 WARN L194 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 209 DAG size of output: 78 [2020-11-07 05:56:22,763 WARN L194 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:56:25,925 WARN L194 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:56:27,643 WARN L194 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 05:56:30,724 WARN L194 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:56:32,391 WARN L194 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 05:56:34,064 WARN L194 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 05:56:35,721 WARN L194 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 05:56:38,806 WARN L194 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:56:40,149 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:56:43,212 WARN L194 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:56:44,085 WARN L194 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:56:44,945 WARN L194 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:56:45,826 WARN L194 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:56:49,058 WARN L194 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:56:49,932 WARN L194 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:56:50,817 WARN L194 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:56:52,096 WARN L194 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 160 DAG size of output: 75 [2020-11-07 05:56:55,314 WARN L194 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:56:58,530 WARN L194 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:57:00,065 WARN L194 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 207 DAG size of output: 78 [2020-11-07 05:57:03,286 WARN L194 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:57:04,609 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:57:07,595 WARN L194 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:57:10,587 WARN L194 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:57:13,824 WARN L194 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:57:14,738 WARN L194 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 74 [2020-11-07 05:57:15,589 WARN L194 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:57:18,733 WARN L194 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:57:20,105 WARN L194 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 165 DAG size of output: 79 [2020-11-07 05:57:23,247 WARN L194 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:57:24,638 WARN L194 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 198 DAG size of output: 79 [2020-11-07 05:57:25,587 WARN L194 SmtUtils]: Spent 943.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 78 [2020-11-07 05:57:26,439 WARN L194 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:57:27,287 WARN L194 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:57:28,316 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 165 DAG size of output: 77 [2020-11-07 05:57:29,162 WARN L194 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:57:30,017 WARN L194 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:57:31,405 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 207 DAG size of output: 77 [2020-11-07 05:57:32,255 WARN L194 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:57:33,120 WARN L194 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:57:33,977 WARN L194 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:57:34,893 WARN L194 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 74 [2020-11-07 05:57:37,878 WARN L194 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-11-07 05:57:38,791 WARN L194 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 05:57:40,247 WARN L194 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 160 DAG size of output: 85 [2020-11-07 05:57:41,311 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 165 DAG size of output: 77 [2020-11-07 05:57:42,813 WARN L194 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 152 DAG size of output: 76 [2020-11-07 05:57:45,996 WARN L194 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 247 DAG size of output: 100 [2020-11-07 05:57:49,186 WARN L194 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 247 DAG size of output: 100 [2020-11-07 05:57:50,094 WARN L194 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 74 [2020-11-07 05:57:51,155 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 152 DAG size of output: 78 [2020-11-07 05:57:52,851 WARN L194 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 212 DAG size of output: 81 [2020-11-07 05:57:53,968 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 147 DAG size of output: 66 [2020-11-07 05:57:54,842 WARN L194 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:57:55,852 WARN L194 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 201 DAG size of output: 78 [2020-11-07 05:57:56,832 WARN L194 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 77 [2020-11-07 05:57:57,790 WARN L194 SmtUtils]: Spent 951.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 80 [2020-11-07 05:58:00,981 WARN L194 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:58:04,140 WARN L194 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:58:04,992 WARN L194 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:58:08,177 WARN L194 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:58:11,384 WARN L194 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:58:12,304 WARN L194 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 74 [2020-11-07 05:58:15,294 WARN L194 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-11-07 05:58:16,729 WARN L194 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 206 DAG size of output: 77 [2020-11-07 05:58:19,744 WARN L194 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-11-07 05:58:21,113 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:58:24,175 WARN L194 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:58:27,235 WARN L194 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:58:30,305 WARN L194 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:58:31,685 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:58:33,339 WARN L194 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 05:58:34,686 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:58:37,772 WARN L194 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:58:39,128 WARN L194 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:58:40,360 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 158 DAG size of output: 77 [2020-11-07 05:58:41,235 WARN L194 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:58:42,116 WARN L194 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:58:43,007 WARN L194 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:58:43,895 WARN L194 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:58:44,782 WARN L194 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:58:45,660 WARN L194 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:58:46,535 WARN L194 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:58:47,410 WARN L194 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:58:48,790 WARN L194 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 164 DAG size of output: 79 [2020-11-07 05:58:49,755 WARN L194 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 05:58:51,247 WARN L194 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 221 DAG size of output: 81 [2020-11-07 05:58:53,294 WARN L194 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 214 DAG size of output: 85 [2020-11-07 05:58:54,658 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 05:58:57,763 WARN L194 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:58:59,072 WARN L194 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 225 DAG size of output: 79 [2020-11-07 05:59:00,095 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 159 DAG size of output: 80 [2020-11-07 05:59:01,332 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 156 DAG size of output: 76 [2020-11-07 05:59:04,375 WARN L194 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-11-07 05:59:06,138 WARN L194 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 213 DAG size of output: 84 [2020-11-07 05:59:07,074 WARN L194 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:07,955 WARN L194 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:09,200 WARN L194 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 155 DAG size of output: 76 [2020-11-07 05:59:10,274 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 152 DAG size of output: 78 [2020-11-07 05:59:11,170 WARN L194 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:12,047 WARN L194 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:14,105 WARN L194 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 208 DAG size of output: 85 [2020-11-07 05:59:15,009 WARN L194 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 65 [2020-11-07 05:59:16,872 WARN L194 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 209 DAG size of output: 78 [2020-11-07 05:59:20,129 WARN L194 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:59:23,384 WARN L194 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:59:24,267 WARN L194 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:27,538 WARN L194 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:59:30,664 WARN L194 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 05:59:31,567 WARN L194 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:33,270 WARN L194 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 158 DAG size of output: 85 [2020-11-07 05:59:34,181 WARN L194 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:35,089 WARN L194 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:35,973 WARN L194 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:37,207 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 212 DAG size of output: 79 [2020-11-07 05:59:40,498 WARN L194 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:59:41,392 WARN L194 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:42,287 WARN L194 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:45,605 WARN L194 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 247 DAG size of output: 100 [2020-11-07 05:59:46,496 WARN L194 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:49,768 WARN L194 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:59:50,841 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 154 DAG size of output: 77 [2020-11-07 05:59:51,735 WARN L194 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:55,034 WARN L194 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 05:59:55,945 WARN L194 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:56,853 WARN L194 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:57,759 WARN L194 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:58,665 WARN L194 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 05:59:59,634 WARN L194 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 75 [2020-11-07 06:00:01,381 WARN L194 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 213 DAG size of output: 84 [2020-11-07 06:00:02,286 WARN L194 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:00:04,247 WARN L194 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 207 DAG size of output: 85 [2020-11-07 06:00:05,363 WARN L194 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 152 DAG size of output: 77 [2020-11-07 06:00:06,272 WARN L194 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:00:07,179 WARN L194 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:00:09,255 WARN L194 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 208 DAG size of output: 85 [2020-11-07 06:00:10,189 WARN L194 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 65 [2020-11-07 06:00:11,096 WARN L194 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:00:12,641 WARN L194 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 154 DAG size of output: 80 [2020-11-07 06:00:13,541 WARN L194 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:00:15,297 WARN L194 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 166 DAG size of output: 81 [2020-11-07 06:00:18,423 WARN L194 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-11-07 06:00:18,608 WARN L194 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 34 [2020-11-07 06:00:21,738 WARN L194 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 241 DAG size of output: 97 [2020-11-07 06:00:22,651 WARN L194 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:00:24,301 WARN L194 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 163 DAG size of output: 88 [2020-11-07 06:00:25,214 WARN L194 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:00:26,132 WARN L194 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:00:27,451 WARN L194 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 222 DAG size of output: 80 [2020-11-07 06:00:28,366 WARN L194 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:00:29,411 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:00:30,481 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 203 DAG size of output: 77 [2020-11-07 06:00:31,417 WARN L194 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:00:33,027 WARN L194 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 207 DAG size of output: 78 [2020-11-07 06:00:33,969 WARN L194 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:00:34,877 WARN L194 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:00:38,252 WARN L194 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 06:00:39,648 WARN L194 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 06:00:40,569 WARN L194 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:00:43,821 WARN L194 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 06:00:47,187 WARN L194 SmtUtils]: Spent 3.36 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 06:00:48,268 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 201 DAG size of output: 78 [2020-11-07 06:00:51,494 WARN L194 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 06:00:53,269 WARN L194 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 06:00:54,683 WARN L194 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 06:00:56,441 WARN L194 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 06:00:59,685 WARN L194 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 06:01:01,447 WARN L194 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 06:01:04,709 WARN L194 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 06:01:07,960 WARN L194 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 06:01:09,408 WARN L194 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 06:01:12,686 WARN L194 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 06:01:15,935 WARN L194 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 06:01:17,697 WARN L194 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 06:01:19,347 WARN L194 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 155 DAG size of output: 81 [2020-11-07 06:01:20,285 WARN L194 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:01:21,289 WARN L194 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 80 [2020-11-07 06:01:22,225 WARN L194 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 65 [2020-11-07 06:01:23,683 WARN L194 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 194 DAG size of output: 77 [2020-11-07 06:01:26,950 WARN L194 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 06:01:30,237 WARN L194 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 06:01:31,236 WARN L194 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 78 [2020-11-07 06:01:34,664 WARN L194 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 251 DAG size of output: 99 [2020-11-07 06:01:37,975 WARN L194 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 249 DAG size of output: 98 [2020-11-07 06:01:39,783 WARN L194 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 196 DAG size of output: 79 [2020-11-07 06:01:41,604 WARN L194 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 196 DAG size of output: 79