/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:35:09,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:35:09,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:35:09,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 05:35:09,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:35:09,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:35:09,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:35:09,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:35:09,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:35:09,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:35:09,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:35:09,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:35:09,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:35:09,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:35:09,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:35:09,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:35:09,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 05:35:09,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:35:09,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:35:09,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:35:09,934 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 05:35:09,961 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:35:09,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:35:09,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:35:09,967 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:35:09,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:35:09,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:35:09,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:35:09,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:35:09,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:35:09,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:35:09,971 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:35:09,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:35:09,971 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:35:09,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:35:09,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:35:09,972 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:35:09,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:35:09,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:35:09,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:35:09,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:35:09,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:35:09,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:35:09,975 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:35:10,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:35:10,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:35:10,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:35:10,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:35:10,474 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:35:10,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-11-07 05:35:10,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765c71f21/a3703cd696ce4aaf98c2d9eef2328de8/FLAG8108716c4 [2020-11-07 05:35:11,448 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:35:11,449 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-11-07 05:35:11,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765c71f21/a3703cd696ce4aaf98c2d9eef2328de8/FLAG8108716c4 [2020-11-07 05:35:11,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765c71f21/a3703cd696ce4aaf98c2d9eef2328de8 [2020-11-07 05:35:11,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:35:11,615 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:35:11,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:35:11,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:35:11,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:35:11,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:35:11" (1/1) ... [2020-11-07 05:35:11,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479bef34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:11, skipping insertion in model container [2020-11-07 05:35:11,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:35:11" (1/1) ... [2020-11-07 05:35:11,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:35:11,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:35:12,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:35:12,152 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:35:12,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:35:12,401 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:35:12,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:12 WrapperNode [2020-11-07 05:35:12,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:35:12,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:35:12,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:35:12,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:35:12,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:12" (1/1) ... [2020-11-07 05:35:12,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:12" (1/1) ... [2020-11-07 05:35:12,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:12" (1/1) ... [2020-11-07 05:35:12,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:12" (1/1) ... [2020-11-07 05:35:12,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:12" (1/1) ... [2020-11-07 05:35:12,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:12" (1/1) ... [2020-11-07 05:35:12,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:12" (1/1) ... [2020-11-07 05:35:12,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:35:12,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:35:12,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:35:12,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:35:12,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:12" (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 05:35:12,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:35:12,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:35:12,641 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:35:12,642 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-07 05:35:12,642 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:35:12,642 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-07 05:35:12,642 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:35:12,643 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:35:12,643 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:35:12,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:35:12,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 05:35:12,643 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 05:35:12,643 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:35:12,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:35:12,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:35:12,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:35:12,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:35:12,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:35:12,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:35:14,210 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:35:14,210 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 05:35:14,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:35:14 BoogieIcfgContainer [2020-11-07 05:35:14,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:35:14,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:35:14,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:35:14,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:35:14,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:35:11" (1/3) ... [2020-11-07 05:35:14,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69613bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:35:14, skipping insertion in model container [2020-11-07 05:35:14,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:35:12" (2/3) ... [2020-11-07 05:35:14,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69613bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:35:14, skipping insertion in model container [2020-11-07 05:35:14,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:35:14" (3/3) ... [2020-11-07 05:35:14,230 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label53.c [2020-11-07 05:35:14,247 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:35:14,252 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:35:14,265 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:35:14,302 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:35:14,303 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:35:14,303 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:35:14,303 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:35:14,303 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:35:14,303 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:35:14,304 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:35:14,304 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:35:14,348 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states. [2020-11-07 05:35:14,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-11-07 05:35:14,393 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:35:14,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:35:14,394 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:35:14,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:35:14,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1349729474, now seen corresponding path program 1 times [2020-11-07 05:35:14,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:35:14,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590285324] [2020-11-07 05:35:14,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:35:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:15,153 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-07 05:35:15,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:35:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:15,253 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 05:35:15,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590285324] [2020-11-07 05:35:15,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:35:15,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 05:35:15,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104377855] [2020-11-07 05:35:15,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 05:35:15,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:35:15,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 05:35:15,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 05:35:15,280 INFO L87 Difference]: Start difference. First operand 537 states. Second operand 4 states. [2020-11-07 05:35:15,520 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:35:18,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:35:18,354 INFO L93 Difference]: Finished difference Result 1248 states and 1647 transitions. [2020-11-07 05:35:18,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 05:35:18,357 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 151 [2020-11-07 05:35:18,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:35:18,382 INFO L225 Difference]: With dead ends: 1248 [2020-11-07 05:35:18,383 INFO L226 Difference]: Without dead ends: 670 [2020-11-07 05:35:18,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 05:35:18,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2020-11-07 05:35:18,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 614. [2020-11-07 05:35:18,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2020-11-07 05:35:18,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 724 transitions. [2020-11-07 05:35:18,634 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 724 transitions. Word has length 151 [2020-11-07 05:35:18,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:35:18,637 INFO L481 AbstractCegarLoop]: Abstraction has 614 states and 724 transitions. [2020-11-07 05:35:18,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 05:35:18,638 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 724 transitions. [2020-11-07 05:35:18,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-11-07 05:35:18,647 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:35:18,648 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, 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 05:35:18,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:35:18,648 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:35:18,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:35:18,649 INFO L82 PathProgramCache]: Analyzing trace with hash 2117276078, now seen corresponding path program 1 times [2020-11-07 05:35:18,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:35:18,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392735375] [2020-11-07 05:35:18,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:35:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:18,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:35:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:19,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:35:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:19,092 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:35:19,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392735375] [2020-11-07 05:35:19,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:35:19,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 05:35:19,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797152708] [2020-11-07 05:35:19,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 05:35:19,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:35:19,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 05:35:19,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 05:35:19,099 INFO L87 Difference]: Start difference. First operand 614 states and 724 transitions. Second operand 5 states. [2020-11-07 05:35:21,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:35:21,828 INFO L93 Difference]: Finished difference Result 1534 states and 1885 transitions. [2020-11-07 05:35:21,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 05:35:21,829 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-11-07 05:35:21,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:35:21,845 INFO L225 Difference]: With dead ends: 1534 [2020-11-07 05:35:21,845 INFO L226 Difference]: Without dead ends: 952 [2020-11-07 05:35:21,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 05:35:21,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2020-11-07 05:35:22,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 900. [2020-11-07 05:35:22,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2020-11-07 05:35:22,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1081 transitions. [2020-11-07 05:35:22,029 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1081 transitions. Word has length 168 [2020-11-07 05:35:22,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:35:22,030 INFO L481 AbstractCegarLoop]: Abstraction has 900 states and 1081 transitions. [2020-11-07 05:35:22,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 05:35:22,030 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1081 transitions. [2020-11-07 05:35:22,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-07 05:35:22,035 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:35:22,036 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:35:22,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:35:22,036 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:35:22,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:35:22,037 INFO L82 PathProgramCache]: Analyzing trace with hash 63829093, now seen corresponding path program 1 times [2020-11-07 05:35:22,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:35:22,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534732589] [2020-11-07 05:35:22,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:35:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:22,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:35:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:22,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:35:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:35:22,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534732589] [2020-11-07 05:35:22,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:35:22,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 05:35:22,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160685937] [2020-11-07 05:35:22,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:35:22,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:35:22,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:35:22,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:35:22,295 INFO L87 Difference]: Start difference. First operand 900 states and 1081 transitions. Second operand 8 states. [2020-11-07 05:35:22,543 WARN L194 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:35:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:35:26,382 INFO L93 Difference]: Finished difference Result 2854 states and 3677 transitions. [2020-11-07 05:35:26,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 05:35:26,383 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 173 [2020-11-07 05:35:26,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:35:26,402 INFO L225 Difference]: With dead ends: 2854 [2020-11-07 05:35:26,402 INFO L226 Difference]: Without dead ends: 1986 [2020-11-07 05:35:26,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-11-07 05:35:26,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2020-11-07 05:35:26,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1631. [2020-11-07 05:35:26,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1631 states. [2020-11-07 05:35:26,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2022 transitions. [2020-11-07 05:35:26,801 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2022 transitions. Word has length 173 [2020-11-07 05:35:26,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:35:26,801 INFO L481 AbstractCegarLoop]: Abstraction has 1631 states and 2022 transitions. [2020-11-07 05:35:26,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:35:26,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2022 transitions. [2020-11-07 05:35:26,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-11-07 05:35:26,810 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:35:26,811 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:35:26,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 05:35:26,811 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:35:26,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:35:26,812 INFO L82 PathProgramCache]: Analyzing trace with hash 464120051, now seen corresponding path program 1 times [2020-11-07 05:35:26,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:35:26,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013591410] [2020-11-07 05:35:26,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:35:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:27,010 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-07 05:35:27,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:35:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:27,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:35:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:27,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-11-07 05:35:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:27,191 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-07 05:35:27,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013591410] [2020-11-07 05:35:27,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:35:27,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:35:27,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59021468] [2020-11-07 05:35:27,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:35:27,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:35:27,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:35:27,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:35:27,195 INFO L87 Difference]: Start difference. First operand 1631 states and 2022 transitions. Second operand 7 states. [2020-11-07 05:35:27,427 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:35:30,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:35:30,110 INFO L93 Difference]: Finished difference Result 3640 states and 4650 transitions. [2020-11-07 05:35:30,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 05:35:30,111 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2020-11-07 05:35:30,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:35:30,136 INFO L225 Difference]: With dead ends: 3640 [2020-11-07 05:35:30,136 INFO L226 Difference]: Without dead ends: 2041 [2020-11-07 05:35:30,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:35:30,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2041 states. [2020-11-07 05:35:30,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2041 to 1670. [2020-11-07 05:35:30,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1670 states. [2020-11-07 05:35:30,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2050 transitions. [2020-11-07 05:35:30,587 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2050 transitions. Word has length 213 [2020-11-07 05:35:30,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:35:30,587 INFO L481 AbstractCegarLoop]: Abstraction has 1670 states and 2050 transitions. [2020-11-07 05:35:30,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:35:30,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2050 transitions. [2020-11-07 05:35:30,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-11-07 05:35:30,599 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:35:30,600 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:35:30,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 05:35:30,600 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:35:30,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:35:30,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1910149684, now seen corresponding path program 1 times [2020-11-07 05:35:30,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:35:30,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488822103] [2020-11-07 05:35:30,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:35:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:30,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:35:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:30,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:35:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:30,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-07 05:35:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:30,980 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-07 05:35:30,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488822103] [2020-11-07 05:35:30,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:35:30,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:35:30,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151120185] [2020-11-07 05:35:30,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:35:30,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:35:30,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:35:30,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:35:30,984 INFO L87 Difference]: Start difference. First operand 1670 states and 2050 transitions. Second operand 7 states. [2020-11-07 05:35:34,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:35:34,113 INFO L93 Difference]: Finished difference Result 4244 states and 5380 transitions. [2020-11-07 05:35:34,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 05:35:34,113 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 235 [2020-11-07 05:35:34,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:35:34,136 INFO L225 Difference]: With dead ends: 4244 [2020-11-07 05:35:34,136 INFO L226 Difference]: Without dead ends: 2606 [2020-11-07 05:35:34,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:35:34,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2020-11-07 05:35:34,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2337. [2020-11-07 05:35:34,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2337 states. [2020-11-07 05:35:34,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2337 states to 2337 states and 2869 transitions. [2020-11-07 05:35:34,740 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 2869 transitions. Word has length 235 [2020-11-07 05:35:34,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:35:34,740 INFO L481 AbstractCegarLoop]: Abstraction has 2337 states and 2869 transitions. [2020-11-07 05:35:34,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:35:34,740 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 2869 transitions. [2020-11-07 05:35:34,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-11-07 05:35:34,754 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:35:34,755 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:35:34,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 05:35:34,755 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:35:34,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:35:34,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1841168927, now seen corresponding path program 1 times [2020-11-07 05:35:34,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:35:34,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004358124] [2020-11-07 05:35:34,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:35:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:34,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:35:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:34,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:35:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:34,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-11-07 05:35:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:34,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-11-07 05:35:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:35,109 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 96 proven. 14 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-11-07 05:35:35,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004358124] [2020-11-07 05:35:35,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:35:35,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:35:35,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084512527] [2020-11-07 05:35:35,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:35:35,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:35:35,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:35:35,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:35:35,112 INFO L87 Difference]: Start difference. First operand 2337 states and 2869 transitions. Second operand 8 states. [2020-11-07 05:35:35,520 WARN L194 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:35:36,841 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:35:39,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:35:39,598 INFO L93 Difference]: Finished difference Result 5923 states and 7366 transitions. [2020-11-07 05:35:39,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 05:35:39,599 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 256 [2020-11-07 05:35:39,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:35:39,623 INFO L225 Difference]: With dead ends: 5923 [2020-11-07 05:35:39,624 INFO L226 Difference]: Without dead ends: 3187 [2020-11-07 05:35:39,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 05:35:39,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3187 states. [2020-11-07 05:35:40,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3187 to 3179. [2020-11-07 05:35:40,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3179 states. [2020-11-07 05:35:40,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3179 states to 3179 states and 3728 transitions. [2020-11-07 05:35:40,316 INFO L78 Accepts]: Start accepts. Automaton has 3179 states and 3728 transitions. Word has length 256 [2020-11-07 05:35:40,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:35:40,316 INFO L481 AbstractCegarLoop]: Abstraction has 3179 states and 3728 transitions. [2020-11-07 05:35:40,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:35:40,317 INFO L276 IsEmpty]: Start isEmpty. Operand 3179 states and 3728 transitions. [2020-11-07 05:35:40,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-11-07 05:35:40,331 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:35:40,332 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:35:40,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 05:35:40,332 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:35:40,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:35:40,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1944479063, now seen corresponding path program 1 times [2020-11-07 05:35:40,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:35:40,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500252098] [2020-11-07 05:35:40,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:35:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:40,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:35:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:40,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:35:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:40,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:35:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:40,671 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 93 proven. 28 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-07 05:35:40,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500252098] [2020-11-07 05:35:40,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:35:40,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:35:40,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345541498] [2020-11-07 05:35:40,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:35:40,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:35:40,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:35:40,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:35:40,674 INFO L87 Difference]: Start difference. First operand 3179 states and 3728 transitions. Second operand 8 states. [2020-11-07 05:35:41,442 WARN L194 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:35:42,085 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:35:44,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:35:44,633 INFO L93 Difference]: Finished difference Result 6392 states and 7524 transitions. [2020-11-07 05:35:44,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-07 05:35:44,634 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 261 [2020-11-07 05:35:44,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:35:44,657 INFO L225 Difference]: With dead ends: 6392 [2020-11-07 05:35:44,657 INFO L226 Difference]: Without dead ends: 3386 [2020-11-07 05:35:44,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-11-07 05:35:44,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-11-07 05:35:45,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 2343. [2020-11-07 05:35:45,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2343 states. [2020-11-07 05:35:45,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 2701 transitions. [2020-11-07 05:35:45,378 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 2701 transitions. Word has length 261 [2020-11-07 05:35:45,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:35:45,378 INFO L481 AbstractCegarLoop]: Abstraction has 2343 states and 2701 transitions. [2020-11-07 05:35:45,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:35:45,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 2701 transitions. [2020-11-07 05:35:45,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-11-07 05:35:45,389 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:35:45,389 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:35:45,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 05:35:45,390 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:35:45,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:35:45,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1882413799, now seen corresponding path program 1 times [2020-11-07 05:35:45,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:35:45,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377542629] [2020-11-07 05:35:45,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:35:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:45,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:35:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:45,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:35:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:45,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-07 05:35:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:45,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 05:35:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:45,832 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 123 proven. 32 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-11-07 05:35:45,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377542629] [2020-11-07 05:35:45,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:35:45,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:35:45,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680744288] [2020-11-07 05:35:45,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:35:45,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:35:45,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:35:45,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:35:45,836 INFO L87 Difference]: Start difference. First operand 2343 states and 2701 transitions. Second operand 8 states. [2020-11-07 05:35:47,180 WARN L194 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:35:49,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:35:49,318 INFO L93 Difference]: Finished difference Result 4733 states and 5476 transitions. [2020-11-07 05:35:49,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-07 05:35:49,323 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 278 [2020-11-07 05:35:49,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:35:49,338 INFO L225 Difference]: With dead ends: 4733 [2020-11-07 05:35:49,339 INFO L226 Difference]: Without dead ends: 2563 [2020-11-07 05:35:49,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 05:35:49,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2020-11-07 05:35:49,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2493. [2020-11-07 05:35:49,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2493 states. [2020-11-07 05:35:49,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 2857 transitions. [2020-11-07 05:35:49,937 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 2857 transitions. Word has length 278 [2020-11-07 05:35:49,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:35:49,937 INFO L481 AbstractCegarLoop]: Abstraction has 2493 states and 2857 transitions. [2020-11-07 05:35:49,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:35:49,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 2857 transitions. [2020-11-07 05:35:49,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-11-07 05:35:49,946 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:35:49,947 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:35:49,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 05:35:49,947 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:35:49,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:35:49,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1667464267, now seen corresponding path program 1 times [2020-11-07 05:35:49,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:35:49,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [420483055] [2020-11-07 05:35:49,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:35:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:50,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:35:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:50,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:35:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:50,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 05:35:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:50,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-11-07 05:35:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:50,434 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 123 proven. 21 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-11-07 05:35:50,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [420483055] [2020-11-07 05:35:50,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:35:50,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-07 05:35:50,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491617280] [2020-11-07 05:35:50,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 05:35:50,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:35:50,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 05:35:50,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-11-07 05:35:50,438 INFO L87 Difference]: Start difference. First operand 2493 states and 2857 transitions. Second operand 11 states. [2020-11-07 05:35:50,835 WARN L194 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-11-07 05:35:51,533 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 05:35:53,441 WARN L194 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-11-07 05:35:53,747 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:35:57,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:35:57,074 INFO L93 Difference]: Finished difference Result 6741 states and 7728 transitions. [2020-11-07 05:35:57,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-07 05:35:57,075 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 285 [2020-11-07 05:35:57,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:35:57,103 INFO L225 Difference]: With dead ends: 6741 [2020-11-07 05:35:57,103 INFO L226 Difference]: Without dead ends: 4421 [2020-11-07 05:35:57,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2020-11-07 05:35:57,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4421 states. [2020-11-07 05:35:58,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4421 to 4336. [2020-11-07 05:35:58,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4336 states. [2020-11-07 05:35:58,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 4887 transitions. [2020-11-07 05:35:58,204 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 4887 transitions. Word has length 285 [2020-11-07 05:35:58,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:35:58,205 INFO L481 AbstractCegarLoop]: Abstraction has 4336 states and 4887 transitions. [2020-11-07 05:35:58,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 05:35:58,205 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 4887 transitions. [2020-11-07 05:35:58,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-11-07 05:35:58,216 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:35:58,216 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:35:58,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 05:35:58,217 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:35:58,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:35:58,217 INFO L82 PathProgramCache]: Analyzing trace with hash -673436740, now seen corresponding path program 1 times [2020-11-07 05:35:58,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:35:58,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103565702] [2020-11-07 05:35:58,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:35:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:58,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:35:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:58,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:35:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:58,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-07 05:35:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:58,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-11-07 05:35:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:35:59,014 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 124 proven. 33 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-11-07 05:35:59,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103565702] [2020-11-07 05:35:59,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:35:59,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-11-07 05:35:59,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695042917] [2020-11-07 05:35:59,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-07 05:35:59,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:35:59,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-07 05:35:59,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-11-07 05:35:59,017 INFO L87 Difference]: Start difference. First operand 4336 states and 4887 transitions. Second operand 15 states. [2020-11-07 05:35:59,331 WARN L194 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-11-07 05:35:59,859 WARN L194 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-11-07 05:36:00,970 WARN L194 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-11-07 05:36:01,928 WARN L194 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-11-07 05:36:02,519 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:36:03,176 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-11-07 05:36:03,671 WARN L194 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2020-11-07 05:36:04,709 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-11-07 05:36:05,540 WARN L194 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-11-07 05:36:05,850 WARN L194 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-11-07 05:36:06,773 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-11-07 05:36:07,194 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-11-07 05:36:08,519 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-11-07 05:36:10,047 WARN L194 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-11-07 05:36:11,395 WARN L194 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-11-07 05:36:11,821 WARN L194 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2020-11-07 05:36:14,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:36:14,505 INFO L93 Difference]: Finished difference Result 11315 states and 13049 transitions. [2020-11-07 05:36:14,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-11-07 05:36:14,506 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 293 [2020-11-07 05:36:14,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:36:14,546 INFO L225 Difference]: With dead ends: 11315 [2020-11-07 05:36:14,546 INFO L226 Difference]: Without dead ends: 6677 [2020-11-07 05:36:14,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 948 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=830, Invalid=2476, Unknown=0, NotChecked=0, Total=3306 [2020-11-07 05:36:14,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6677 states. [2020-11-07 05:36:16,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6677 to 6601. [2020-11-07 05:36:16,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6601 states. [2020-11-07 05:36:16,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6601 states to 6601 states and 7328 transitions. [2020-11-07 05:36:16,422 INFO L78 Accepts]: Start accepts. Automaton has 6601 states and 7328 transitions. Word has length 293 [2020-11-07 05:36:16,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:36:16,423 INFO L481 AbstractCegarLoop]: Abstraction has 6601 states and 7328 transitions. [2020-11-07 05:36:16,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-07 05:36:16,423 INFO L276 IsEmpty]: Start isEmpty. Operand 6601 states and 7328 transitions. [2020-11-07 05:36:16,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-11-07 05:36:16,437 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:36:16,438 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:36:16,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 05:36:16,438 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:36:16,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:36:16,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1320741800, now seen corresponding path program 1 times [2020-11-07 05:36:16,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:36:16,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213568820] [2020-11-07 05:36:16,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:36:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:16,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:36:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:16,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:36:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:16,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 05:36:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:16,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-11-07 05:36:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:16,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-11-07 05:36:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:16,913 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 192 proven. 28 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-11-07 05:36:16,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213568820] [2020-11-07 05:36:16,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:36:16,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 05:36:16,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289408995] [2020-11-07 05:36:16,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 05:36:16,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:36:16,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 05:36:16,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:36:16,916 INFO L87 Difference]: Start difference. First operand 6601 states and 7328 transitions. Second operand 10 states. [2020-11-07 05:36:18,429 WARN L194 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-11-07 05:36:18,730 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 05:36:18,874 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-07 05:36:21,801 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 05:36:22,139 WARN L194 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:36:25,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:36:25,014 INFO L93 Difference]: Finished difference Result 15062 states and 16802 transitions. [2020-11-07 05:36:25,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-11-07 05:36:25,015 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 328 [2020-11-07 05:36:25,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:36:25,057 INFO L225 Difference]: With dead ends: 15062 [2020-11-07 05:36:25,057 INFO L226 Difference]: Without dead ends: 8294 [2020-11-07 05:36:25,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2020-11-07 05:36:25,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8294 states. [2020-11-07 05:36:26,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8294 to 8069. [2020-11-07 05:36:26,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8069 states. [2020-11-07 05:36:26,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8069 states to 8069 states and 8733 transitions. [2020-11-07 05:36:26,979 INFO L78 Accepts]: Start accepts. Automaton has 8069 states and 8733 transitions. Word has length 328 [2020-11-07 05:36:26,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:36:26,979 INFO L481 AbstractCegarLoop]: Abstraction has 8069 states and 8733 transitions. [2020-11-07 05:36:26,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 05:36:26,979 INFO L276 IsEmpty]: Start isEmpty. Operand 8069 states and 8733 transitions. [2020-11-07 05:36:26,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2020-11-07 05:36:26,993 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:36:26,993 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:36:26,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 05:36:26,994 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:36:26,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:36:26,994 INFO L82 PathProgramCache]: Analyzing trace with hash -809664696, now seen corresponding path program 1 times [2020-11-07 05:36:26,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:36:26,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903199612] [2020-11-07 05:36:26,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:36:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:27,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:36:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:27,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:36:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:27,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 05:36:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:27,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-07 05:36:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:27,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-11-07 05:36:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 224 proven. 60 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-11-07 05:36:27,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903199612] [2020-11-07 05:36:27,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:36:27,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:36:27,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828544319] [2020-11-07 05:36:27,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:36:27,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:36:27,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:36:27,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:36:27,470 INFO L87 Difference]: Start difference. First operand 8069 states and 8733 transitions. Second operand 7 states. [2020-11-07 05:36:31,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:36:31,368 INFO L93 Difference]: Finished difference Result 16090 states and 17405 transitions. [2020-11-07 05:36:31,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 05:36:31,369 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 348 [2020-11-07 05:36:31,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:36:31,407 INFO L225 Difference]: With dead ends: 16090 [2020-11-07 05:36:31,407 INFO L226 Difference]: Without dead ends: 8199 [2020-11-07 05:36:31,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:36:31,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8199 states. [2020-11-07 05:36:34,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8199 to 8128. [2020-11-07 05:36:34,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8128 states. [2020-11-07 05:36:34,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8128 states to 8128 states and 8688 transitions. [2020-11-07 05:36:34,121 INFO L78 Accepts]: Start accepts. Automaton has 8128 states and 8688 transitions. Word has length 348 [2020-11-07 05:36:34,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:36:34,122 INFO L481 AbstractCegarLoop]: Abstraction has 8128 states and 8688 transitions. [2020-11-07 05:36:34,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:36:34,122 INFO L276 IsEmpty]: Start isEmpty. Operand 8128 states and 8688 transitions. [2020-11-07 05:36:34,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-11-07 05:36:34,140 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:36:34,140 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:36:34,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 05:36:34,141 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:36:34,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:36:34,141 INFO L82 PathProgramCache]: Analyzing trace with hash -885481970, now seen corresponding path program 1 times [2020-11-07 05:36:34,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:36:34,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491209213] [2020-11-07 05:36:34,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:36:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:34,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:36:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:34,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:36:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:34,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-11-07 05:36:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:34,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 05:36:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:34,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-11-07 05:36:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:34,570 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 243 proven. 18 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2020-11-07 05:36:34,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491209213] [2020-11-07 05:36:34,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:36:34,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:36:34,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783166679] [2020-11-07 05:36:34,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:36:34,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:36:34,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:36:34,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:36:34,572 INFO L87 Difference]: Start difference. First operand 8128 states and 8688 transitions. Second operand 8 states. [2020-11-07 05:36:35,967 WARN L194 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:36:39,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:36:39,199 INFO L93 Difference]: Finished difference Result 16285 states and 17409 transitions. [2020-11-07 05:36:39,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-07 05:36:39,200 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 370 [2020-11-07 05:36:39,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:36:39,237 INFO L225 Difference]: With dead ends: 16285 [2020-11-07 05:36:39,237 INFO L226 Difference]: Without dead ends: 8335 [2020-11-07 05:36:39,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 05:36:39,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8335 states. [2020-11-07 05:36:41,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8335 to 8279. [2020-11-07 05:36:41,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8279 states. [2020-11-07 05:36:41,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8279 states to 8279 states and 8820 transitions. [2020-11-07 05:36:41,165 INFO L78 Accepts]: Start accepts. Automaton has 8279 states and 8820 transitions. Word has length 370 [2020-11-07 05:36:41,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:36:41,166 INFO L481 AbstractCegarLoop]: Abstraction has 8279 states and 8820 transitions. [2020-11-07 05:36:41,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:36:41,166 INFO L276 IsEmpty]: Start isEmpty. Operand 8279 states and 8820 transitions. [2020-11-07 05:36:41,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2020-11-07 05:36:41,179 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:36:41,180 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:36:41,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-07 05:36:41,180 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:36:41,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:36:41,180 INFO L82 PathProgramCache]: Analyzing trace with hash -382983671, now seen corresponding path program 1 times [2020-11-07 05:36:41,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:36:41,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493802220] [2020-11-07 05:36:41,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:36:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:41,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:36:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:41,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:36:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:41,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-11-07 05:36:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:41,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 05:36:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:41,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-07 05:36:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:41,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-11-07 05:36:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:41,929 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 228 proven. 42 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2020-11-07 05:36:41,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493802220] [2020-11-07 05:36:41,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:36:41,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:36:41,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742780581] [2020-11-07 05:36:41,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:36:41,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:36:41,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:36:41,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:36:41,933 INFO L87 Difference]: Start difference. First operand 8279 states and 8820 transitions. Second operand 7 states. [2020-11-07 05:36:42,123 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:36:46,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:36:46,168 INFO L93 Difference]: Finished difference Result 15286 states and 16275 transitions. [2020-11-07 05:36:46,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 05:36:46,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 391 [2020-11-07 05:36:46,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:36:46,195 INFO L225 Difference]: With dead ends: 15286 [2020-11-07 05:36:46,195 INFO L226 Difference]: Without dead ends: 8275 [2020-11-07 05:36:46,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:36:46,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8275 states. [2020-11-07 05:36:48,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8275 to 8268. [2020-11-07 05:36:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8268 states. [2020-11-07 05:36:48,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 8786 transitions. [2020-11-07 05:36:48,269 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 8786 transitions. Word has length 391 [2020-11-07 05:36:48,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:36:48,270 INFO L481 AbstractCegarLoop]: Abstraction has 8268 states and 8786 transitions. [2020-11-07 05:36:48,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:36:48,270 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 8786 transitions. [2020-11-07 05:36:48,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2020-11-07 05:36:48,284 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:36:48,284 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:36:48,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-07 05:36:48,284 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:36:48,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:36:48,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1533184256, now seen corresponding path program 1 times [2020-11-07 05:36:48,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:36:48,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19449215] [2020-11-07 05:36:48,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:36:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:48,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:36:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:48,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:36:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:48,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-11-07 05:36:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:48,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 05:36:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:48,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-07 05:36:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:48,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-11-07 05:36:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:48,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2020-11-07 05:36:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:48,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-11-07 05:36:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:36:49,024 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 382 proven. 7 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2020-11-07 05:36:49,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19449215] [2020-11-07 05:36:49,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:36:49,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 05:36:49,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045363247] [2020-11-07 05:36:49,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 05:36:49,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:36:49,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 05:36:49,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 05:36:49,026 INFO L87 Difference]: Start difference. First operand 8268 states and 8786 transitions. Second operand 5 states. [2020-11-07 05:36:51,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:36:51,868 INFO L93 Difference]: Finished difference Result 13249 states and 14096 transitions. [2020-11-07 05:36:51,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 05:36:51,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 481 [2020-11-07 05:36:51,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:36:51,875 INFO L225 Difference]: With dead ends: 13249 [2020-11-07 05:36:51,875 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 05:36:51,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 05:36:51,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 05:36:51,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 05:36:51,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 05:36:51,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 05:36:51,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 481 [2020-11-07 05:36:51,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:36:51,889 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 05:36:51,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 05:36:51,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 05:36:51,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 05:36:51,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-07 05:36:51,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 05:36:52,326 WARN L194 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:37:06,771 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 124 [2020-11-07 05:37:06,985 WARN L194 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 122 [2020-11-07 05:37:07,129 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 124 [2020-11-07 05:37:07,309 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 122 [2020-11-07 05:37:07,424 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 122 [2020-11-07 05:37:23,642 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 221 [2020-11-07 05:37:56,820 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 221 [2020-11-07 05:37:58,203 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 221 [2020-11-07 05:37:58,342 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 221 [2020-11-07 05:38:15,940 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 221 [2020-11-07 05:38:58,739 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2020-11-07 05:39:31,728 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 221 [2020-11-07 05:40:17,501 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 221 [2020-11-07 05:40:17,637 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 221 [2020-11-07 05:40:17,775 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 221 [2020-11-07 05:40:20,061 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 221 [2020-11-07 05:40:32,680 WARN L194 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:40:35,521 WARN L194 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:40:38,306 WARN L194 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:40:41,090 WARN L194 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:40:42,092 WARN L194 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:40:43,100 WARN L194 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-11-07 05:40:44,102 WARN L194 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-11-07 05:40:46,880 WARN L194 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:40:47,857 WARN L194 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:40:50,645 WARN L194 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:40:51,810 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 191 DAG size of output: 74 [2020-11-07 05:40:53,088 WARN L194 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 192 DAG size of output: 75 [2020-11-07 05:40:53,904 WARN L194 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 72 [2020-11-07 05:40:55,026 WARN L194 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 149 DAG size of output: 77 [2020-11-07 05:40:55,807 WARN L194 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 67 [2020-11-07 05:40:56,989 WARN L194 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 143 DAG size of output: 71 [2020-11-07 05:40:59,920 WARN L194 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:41:01,326 WARN L194 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 220 DAG size of output: 77 [2020-11-07 05:41:02,232 WARN L194 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 76 [2020-11-07 05:41:05,186 WARN L194 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:41:08,119 WARN L194 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:41:09,118 WARN L194 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 69 [2020-11-07 05:41:09,939 WARN L194 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 72 [2020-11-07 05:41:10,822 WARN L194 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 72 [2020-11-07 05:41:12,019 WARN L194 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 192 DAG size of output: 76 [2020-11-07 05:41:14,977 WARN L194 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:41:15,725 WARN L194 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 72 [2020-11-07 05:41:16,749 WARN L194 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:41:17,589 WARN L194 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 71 [2020-11-07 05:41:18,798 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 210 DAG size of output: 77 [2020-11-07 05:41:19,801 WARN L194 SmtUtils]: Spent 994.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 69 [2020-11-07 05:41:20,992 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 155 DAG size of output: 80 [2020-11-07 05:41:23,965 WARN L194 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:41:25,235 WARN L194 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 192 DAG size of output: 75 [2020-11-07 05:41:28,194 WARN L194 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:41:29,017 WARN L194 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 72 [2020-11-07 05:41:30,116 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 145 DAG size of output: 74 [2020-11-07 05:41:31,294 WARN L194 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 154 DAG size of output: 75 [2020-11-07 05:41:34,274 WARN L194 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:41:35,041 WARN L194 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 74 [2020-11-07 05:41:36,046 WARN L194 SmtUtils]: Spent 994.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 69 [2020-11-07 05:41:36,845 WARN L194 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 69 [2020-11-07 05:41:38,013 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 140 DAG size of output: 67 [2020-11-07 05:41:39,528 WARN L194 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 171 DAG size of output: 86 [2020-11-07 05:41:40,347 WARN L194 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 74 [2020-11-07 05:41:41,205 WARN L194 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 75 [2020-11-07 05:41:44,174 WARN L194 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:41:45,106 WARN L194 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 81 [2020-11-07 05:41:46,296 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 199 DAG size of output: 74 [2020-11-07 05:41:47,273 WARN L194 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 80 [2020-11-07 05:41:48,121 WARN L194 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 71 [2020-11-07 05:41:49,013 WARN L194 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 73 [2020-11-07 05:41:50,302 WARN L194 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 203 DAG size of output: 77 [2020-11-07 05:41:51,054 WARN L194 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 70 [2020-11-07 05:41:52,235 WARN L194 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 191 DAG size of output: 74 [2020-11-07 05:41:53,439 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 153 DAG size of output: 77 [2020-11-07 05:41:54,306 WARN L194 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 69 [2020-11-07 05:41:57,297 WARN L194 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:41:58,425 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 145 DAG size of output: 72 [2020-11-07 05:41:59,505 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 197 DAG size of output: 71 [2020-11-07 05:42:00,525 WARN L194 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:42:01,286 WARN L194 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 72 [2020-11-07 05:42:04,281 WARN L194 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:42:05,045 WARN L194 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 72 [2020-11-07 05:42:06,080 WARN L194 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-11-07 05:42:08,943 WARN L194 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:42:11,797 WARN L194 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:42:14,647 WARN L194 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:42:15,659 WARN L194 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:42:16,664 WARN L194 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:42:17,675 WARN L194 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:42:20,533 WARN L194 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:42:23,536 WARN L194 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:42:24,301 WARN L194 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 72 [2020-11-07 05:42:25,742 WARN L194 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 163 DAG size of output: 83 [2020-11-07 05:42:28,769 WARN L194 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:42:29,936 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 144 DAG size of output: 72 [2020-11-07 05:42:30,850 WARN L194 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 76 [2020-11-07 05:42:32,063 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 148 DAG size of output: 76 [2020-11-07 05:42:33,142 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 144 DAG size of output: 71 [2020-11-07 05:42:34,360 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 143 DAG size of output: 71 [2020-11-07 05:42:36,073 WARN L194 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 204 DAG size of output: 76 [2020-11-07 05:42:37,295 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 213 DAG size of output: 77 [2020-11-07 05:42:38,115 WARN L194 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 69 [2020-11-07 05:42:39,159 WARN L194 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 200 DAG size of output: 76 [2020-11-07 05:42:40,297 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 146 DAG size of output: 76 [2020-11-07 05:42:43,328 WARN L194 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:42:44,347 WARN L194 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 153 DAG size of output: 84 [2020-11-07 05:42:45,460 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 143 DAG size of output: 74 [2020-11-07 05:42:46,229 WARN L194 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 72 [2020-11-07 05:42:47,189 WARN L194 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 82 [2020-11-07 05:42:48,398 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 155 DAG size of output: 74 [2020-11-07 05:42:49,418 WARN L194 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:42:50,194 WARN L194 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 72 [2020-11-07 05:42:53,221 WARN L194 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:42:56,258 WARN L194 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:42:57,285 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:43:00,201 WARN L194 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:43:03,107 WARN L194 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:43:06,035 WARN L194 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:43:07,094 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-11-07 05:43:07,982 WARN L194 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 71 [2020-11-07 05:43:09,807 WARN L194 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 156 DAG size of output: 82 [2020-11-07 05:43:12,871 WARN L194 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:43:13,816 WARN L194 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 75 [2020-11-07 05:43:14,602 WARN L194 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 73 [2020-11-07 05:43:15,796 WARN L194 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 147 DAG size of output: 75 [2020-11-07 05:43:17,589 WARN L194 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 216 DAG size of output: 85 [2020-11-07 05:43:18,748 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 196 DAG size of output: 75 [2020-11-07 05:43:19,941 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 154 DAG size of output: 78 [2020-11-07 05:43:21,153 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 161 DAG size of output: 74 [2020-11-07 05:43:22,265 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 141 DAG size of output: 68 [2020-11-07 05:43:23,188 WARN L194 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 73 [2020-11-07 05:43:24,355 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 158 DAG size of output: 77 [2020-11-07 05:43:27,423 WARN L194 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:43:28,649 WARN L194 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 191 DAG size of output: 74 [2020-11-07 05:43:31,719 WARN L194 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:43:32,962 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 144 DAG size of output: 71 [2020-11-07 05:43:33,989 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:43:35,055 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-11-07 05:43:37,994 WARN L194 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:43:39,243 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 209 DAG size of output: 80 [2020-11-07 05:43:40,695 WARN L194 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 155 DAG size of output: 81 [2020-11-07 05:43:43,782 WARN L194 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:43:44,740 WARN L194 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 78 [2020-11-07 05:43:45,876 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 142 DAG size of output: 70 [2020-11-07 05:43:47,009 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 144 DAG size of output: 71 [2020-11-07 05:43:48,193 WARN L194 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 151 DAG size of output: 81 [2020-11-07 05:43:49,291 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 144 DAG size of output: 72 [2020-11-07 05:43:50,352 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 142 DAG size of output: 69 [2020-11-07 05:43:53,453 WARN L194 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:43:54,347 WARN L194 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 75 [2020-11-07 05:43:55,545 WARN L194 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 149 DAG size of output: 73 [2020-11-07 05:43:56,763 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 143 DAG size of output: 71 [2020-11-07 05:43:57,836 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 141 DAG size of output: 69 [2020-11-07 05:43:58,753 WARN L194 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 73 [2020-11-07 05:43:59,987 WARN L194 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 190 DAG size of output: 74 [2020-11-07 05:44:01,091 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 144 DAG size of output: 72 [2020-11-07 05:44:02,071 WARN L194 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 78 [2020-11-07 05:44:03,383 WARN L194 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2020-11-07 05:44:04,678 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 167 DAG size of output: 77 [2020-11-07 05:44:05,855 WARN L194 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 211 DAG size of output: 80 [2020-11-07 05:44:07,058 WARN L194 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 144 DAG size of output: 74 [2020-11-07 05:44:08,116 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 159 DAG size of output: 78 [2020-11-07 05:44:09,045 WARN L194 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 74 [2020-11-07 05:44:10,643 WARN L194 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 176 DAG size of output: 87 [2020-11-07 05:44:11,794 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 143 DAG size of output: 74 [2020-11-07 05:44:12,535 WARN L194 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 59 [2020-11-07 05:44:13,663 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 197 DAG size of output: 71 [2020-11-07 05:44:16,632 WARN L194 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:44:19,611 WARN L194 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:44:20,741 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 197 DAG size of output: 71 [2020-11-07 05:44:21,871 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 197 DAG size of output: 71 [2020-11-07 05:44:22,951 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-11-07 05:44:23,890 WARN L194 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 75 [2020-11-07 05:44:27,016 WARN L194 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:44:28,128 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 143 DAG size of output: 70 [2020-11-07 05:44:28,987 WARN L194 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 77 [2020-11-07 05:44:29,910 WARN L194 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 72 [2020-11-07 05:44:32,901 WARN L194 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:44:36,036 WARN L194 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:44:37,548 WARN L194 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 199 DAG size of output: 77 [2020-11-07 05:44:38,682 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 141 DAG size of output: 68 [2020-11-07 05:44:41,683 WARN L194 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:44:42,745 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:44:43,811 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:44:44,558 WARN L194 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 59 [2020-11-07 05:44:45,656 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-11-07 05:44:48,680 WARN L194 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:44:49,745 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:44:50,809 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:44:53,815 WARN L194 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:44:54,918 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-11-07 05:44:57,922 WARN L194 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:44:58,990 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:45:00,091 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 141 DAG size of output: 69 [2020-11-07 05:45:00,943 WARN L194 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 68 [2020-11-07 05:45:02,082 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 141 DAG size of output: 70 [2020-11-07 05:45:05,248 WARN L194 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:45:06,773 WARN L194 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 199 DAG size of output: 77 [2020-11-07 05:45:09,957 WARN L194 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:45:10,789 WARN L194 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 74 [2020-11-07 05:45:12,077 WARN L194 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 148 DAG size of output: 76 [2020-11-07 05:45:13,182 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-11-07 05:45:16,216 WARN L194 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:45:19,403 WARN L194 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:45:20,537 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 141 DAG size of output: 68 [2020-11-07 05:45:21,457 WARN L194 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 70 [2020-11-07 05:45:24,484 WARN L194 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:45:25,596 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-11-07 05:45:26,820 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 197 DAG size of output: 71 [2020-11-07 05:45:27,759 WARN L194 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 73 [2020-11-07 05:45:29,109 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 207 DAG size of output: 78 [2020-11-07 05:45:30,295 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 144 DAG size of output: 73 [2020-11-07 05:45:31,593 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 150 DAG size of output: 74 [2020-11-07 05:45:34,779 WARN L194 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:45:37,977 WARN L194 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:45:39,320 WARN L194 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 150 DAG size of output: 77 [2020-11-07 05:45:40,246 WARN L194 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 74 [2020-11-07 05:45:41,390 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 141 DAG size of output: 68 [2020-11-07 05:45:42,270 WARN L194 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 77 [2020-11-07 05:45:43,416 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 144 DAG size of output: 72 [2020-11-07 05:45:44,286 WARN L194 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 67 [2020-11-07 05:45:45,834 WARN L194 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 199 DAG size of output: 77 [2020-11-07 05:45:46,784 WARN L194 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 72 [2020-11-07 05:45:47,998 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 147 DAG size of output: 72 [2020-11-07 05:45:49,107 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 142 DAG size of output: 69 [2020-11-07 05:45:50,272 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 144 DAG size of output: 72 [2020-11-07 05:45:51,361 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 156 DAG size of output: 81 [2020-11-07 05:45:54,576 WARN L194 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:45:55,920 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 166 DAG size of output: 78 [2020-11-07 05:45:57,875 WARN L194 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 156 DAG size of output: 81 [2020-11-07 05:45:59,127 WARN L194 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 142 DAG size of output: 72 [2020-11-07 05:46:00,413 WARN L194 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 150 DAG size of output: 72 [2020-11-07 05:46:03,621 WARN L194 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:46:04,795 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 142 DAG size of output: 71 [2020-11-07 05:46:08,009 WARN L194 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:46:09,591 WARN L194 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 154 DAG size of output: 77 [2020-11-07 05:46:10,743 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 154 DAG size of output: 75 [2020-11-07 05:46:12,025 WARN L194 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 146 DAG size of output: 74 [2020-11-07 05:46:15,248 WARN L194 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:46:16,143 WARN L194 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 71 [2020-11-07 05:46:18,194 WARN L194 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 238 DAG size of output: 87 [2020-11-07 05:46:19,084 WARN L194 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 73 [2020-11-07 05:46:20,456 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 163 DAG size of output: 79 [2020-11-07 05:46:21,671 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 191 DAG size of output: 74 [2020-11-07 05:46:22,580 WARN L194 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 77 [2020-11-07 05:46:25,823 WARN L194 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:46:26,709 WARN L194 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 67 [2020-11-07 05:46:29,948 WARN L194 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:46:31,052 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 156 DAG size of output: 82 [2020-11-07 05:46:31,981 WARN L194 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 69 [2020-11-07 05:46:33,109 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 200 DAG size of output: 76 [2020-11-07 05:46:34,006 WARN L194 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 73 [2020-11-07 05:46:37,107 WARN L194 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:46:38,207 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-11-07 05:46:39,366 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-11-07 05:46:40,515 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-11-07 05:46:43,628 WARN L194 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:46:44,786 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-11-07 05:46:47,884 WARN L194 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:46:51,134 WARN L194 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:46:52,340 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 142 DAG size of output: 70 [2020-11-07 05:46:55,615 WARN L194 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:46:56,949 WARN L194 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 152 DAG size of output: 80 [2020-11-07 05:46:58,259 WARN L194 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 142 DAG size of output: 69 [2020-11-07 05:47:01,526 WARN L194 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:47:03,178 WARN L194 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 192 DAG size of output: 75 [2020-11-07 05:47:04,325 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 142 DAG size of output: 69 [2020-11-07 05:47:05,248 WARN L194 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 72 [2020-11-07 05:47:08,527 WARN L194 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:47:09,802 WARN L194 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 145 DAG size of output: 72 [2020-11-07 05:47:13,084 WARN L194 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:47:14,225 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-11-07 05:47:17,351 WARN L194 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:47:20,650 WARN L194 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:47:21,606 WARN L194 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 71 [2020-11-07 05:47:22,568 WARN L194 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 70 [2020-11-07 05:47:23,787 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 142 DAG size of output: 69 [2020-11-07 05:47:27,084 WARN L194 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:47:28,062 WARN L194 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 72 [2020-11-07 05:47:31,370 WARN L194 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:47:32,636 WARN L194 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 149 DAG size of output: 72 [2020-11-07 05:47:33,935 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 191 DAG size of output: 74 [2020-11-07 05:47:37,243 WARN L194 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:47:38,857 WARN L194 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 199 DAG size of output: 77 [2020-11-07 05:47:40,131 WARN L194 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 154 DAG size of output: 73 [2020-11-07 05:47:41,484 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 143 DAG size of output: 71 [2020-11-07 05:47:42,456 WARN L194 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 77 [2020-11-07 05:47:45,766 WARN L194 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:47:49,092 WARN L194 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:47:50,298 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 141 DAG size of output: 68 [2020-11-07 05:47:51,248 WARN L194 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 72 [2020-11-07 05:47:54,434 WARN L194 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2020-11-07 05:47:57,760 WARN L194 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:47:59,008 WARN L194 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 191 DAG size of output: 74 [2020-11-07 05:48:00,523 WARN L194 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 225 DAG size of output: 78 [2020-11-07 05:48:03,851 WARN L194 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 268 DAG size of output: 88 [2020-11-07 05:48:05,191 WARN L194 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 152 DAG size of output: 81 [2020-11-07 05:48:07,031 WARN L194 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 174 DAG size of output: 81 [2020-11-07 05:48:08,577 WARN L194 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 200 DAG size of output: 76 [2020-11-07 05:48:09,967 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 210 DAG size of output: 77